Re: [Elecraft] P3 getting closer
Oww! Oww! Oww! My head is starting to split. Enough already :-) 73, Bob N6WG - Original Message - From: Bill W5WVO w5...@cybermesa.net To: n...@nf4l.com Cc: 'Reflector Elecraft' elecraft@mailman.qth.net Sent: Sunday, January 03, 2010 5:44 AM Subject: Re: [Elecraft] P3 getting closer Indeed! And at the rate you're STRIKING it rich, you might end up with enough to buy a SPARE! I've heard that this is an excellent arrangement when operating SPLIT. Sorry... :-) Bill W5WVO - Original Message - From: Mike n...@nf4l.com Cc: 'Reflector Elecraft' elecraft@mailman.qth.net Sent: Friday, January 01, 2010 5:57 PM Subject: Re: [Elecraft] P3 getting closer I think it will bowl you over... 73, Mike NF4L Bruce McLaughlin wrote: It sounds like a P3 may be right up your alley . . . so to speak, Bruce - W8FU -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob Tellefsen Sent: Friday, January 01, 2010 6:19 PM To: Reflector Elecraft Subject: [Elecraft] P3 getting closer On Christmas Eve morning I bowled in a tournament, and won $45. Then today I bowled in another tournament and won $55. So now I'm $100 closer to a P3. I may have it paid for by the time it's released :-) 73, Bob N6WG The Little Station with Attitude __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] P3 getting closer
On Christmas Eve morning I bowled in a tournament, and won $45. Then today I bowled in another tournament and won $55. So now I'm $100 closer to a P3. I may have it paid for by the time it's released :-) 73, Bob N6WG The Little Station with Attitude __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] P3 getting closer
Oooof :-) 73, Bob N6WG - Original Message - From: Mike n...@nf4l.com Cc: 'Bob Tellefsen' n...@comcast.net; 'Reflector Elecraft' elecraft@mailman.qth.net Sent: Friday, January 01, 2010 4:57 PM Subject: Re: [Elecraft] P3 getting closer I think it will bowl you over... 73, Mike NF4L Bruce McLaughlin wrote: It sounds like a P3 may be right up your alley . . . so to speak, Bruce - W8FU -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob Tellefsen Sent: Friday, January 01, 2010 6:19 PM To: Reflector Elecraft Subject: [Elecraft] P3 getting closer On Christmas Eve morning I bowled in a tournament, and won $45. Then today I bowled in another tournament and won $55. So now I'm $100 closer to a P3. I may have it paid for by the time it's released :-) 73, Bob N6WG The Little Station with Attitude __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] P3 question
Very true, Dick, but as we really don't know a lot about the P3 yet, it seemed a legitimate question. I can accept that the design doesn't let you get there from here, but if one doesn't ask about a capability, it might not even get considered by the developers. Anyway, still eager to get my hands on one. 73, Bob N6WG - Original Message - From: Dick Dievendorff die...@comcast.net To: Bob Tellefsen n...@comcast.net Cc: Fred Atchley hamkt...@att.net; Elecraft@mailman.qth.net Sent: Sunday, December 27, 2009 5:12 AM Subject: Re: [Elecraft] P3 question You are asking for an incredible amount of integration between a Windows OS and the P3... Dick, K6KR Sent from my iPhone On Dec 26, 2009, at 4:35 PM, Bob Tellefsen n...@comcast.net wrote: Hi Dick Yes, I used to use a trackball with my Mac at work for doing drawings. Great tool for the purpose. Sure would be slick if someone could figure out a way for the P3 to look like a second monitor when using a logging program and let the cursor run back and forth between the screens. 73, Bob N6WG - Original Message - From: Dick Dievendorff die...@comcast.net To: Bob Tellefsen n...@comcast.net Cc: Fred Atchley hamkt...@att.net; Elecraft@mailman.qth.net Sent: Saturday, December 26, 2009 1:13 PM Subject: Re: [Elecraft] P3 question Older mice (the ones with mouse balls) used two rotary encoders to sense and count movement in two directions. The P3 uses a single rotary encoder and a knob to position a vertical line on a horizontal scale. The same encoder is used for P3 menu selections. A mouse is but one kind of pointing device. Currently the most common of course. 73 de Dick, K6KR Sent from my iPhone On Dec 26, 2009, at 11:28 AM, Bob Tellefsen n...@comcast.net wrote: Thanks Fred Happy New Year Bob N6WG - Original Message - From: Fred Atchley hamkt...@att.net To: Elecraft@mailman.qth.net Sent: Saturday, December 26, 2009 11:13 AM Subject: Re: [Elecraft] P3 question As I recall some of the discussions at the Santa Barbara Hamfest, a mouse interface would greatly complicate the design of the P3. The standard computer-to-mouse interface requires a software driver which is not trivial to design and maintain (drivers are written in machine code for a specific processor architecture.) IMO though, It should be possible to design a mouse-like remote to the P3 that emulates the knob and buttons. 73, Fred, AE6IC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] P3 question
I know we are still waiting for more details, but there's a chance I might have missed some post with this info. I understand we will be able to click on a signal to tune the K3 to that frequency. Will this require a separate mouse in addition to the one used with our logging programs? It would be nice to have a means where the cursor could move from the logging screen to the P3 display, as if it was a computer with two monitors and the cursor moving between them. Anyone know if this is contemplated? Thanks and 73 Bob N6WG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] P3 question
Thqanks Merv Guess we'll just have to wait and see. 73 and Happy New Year Bob N6WG - Original Message - From: Merv Schweigert k...@flex.com To: Bob Tellefsen n...@comcast.net Cc: Reflector Elecraft elecraft@mailman.qth.net Sent: Saturday, December 26, 2009 10:28 AM Subject: Re: [Elecraft] P3 question Anyone know if this is contemplated? Thanks and 73 Bob N6WG There has been a lot of discussion about this, I am not sure if there has been any action or not, the first info that I remember is that the small knob on the bottom right of the P3 controls the cursor position and thats the point and click. Early on there was no provision for external mouse control, but that may changed by release time. Seems that was high on the list of wants. Some one else had asked about pricing and as I recall it was in the 700 range. 73 Merv KH7C __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] P3 question
Well, maybe if we ask nicely :-) Thanks and Happy New Year Bob N6WG - Original Message - From: David Ferrington, M0XDF m0...@alphadene.co.uk To: Bob Tellefsen n...@comcast.net Cc: Reflector Elecraft elecraft@mailman.qth.net Sent: Saturday, December 26, 2009 10:48 AM Subject: Re: [Elecraft] P3 question you turn the right hand knob to move the line and then press it - that is the click as far as I know. No mouse involved with the P3. 73 de M0XDF, K3 #174 -- Two things are infinite, the universe and human stupidity. But I'm not so sure about the universe. -- Albert Einstein. On 26 Dec 2009, at 17:12, Bob Tellefsen wrote: I know we are still waiting for more details, but there's a chance I might have missed some post with this info. I understand we will be able to click on a signal to tune the K3 to that frequency. Will this require a separate mouse in addition to the one used with our logging programs? It would be nice to have a means where the cursor could move from the logging screen to the P3 display, as if it was a computer with two monitors and the cursor moving between them. Anyone know if this is contemplated? Thanks and 73 Bob N6WG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] P3 question
Thanks Fred Happy New Year Bob N6WG - Original Message - From: Fred Atchley hamkt...@att.net To: Elecraft@mailman.qth.net Sent: Saturday, December 26, 2009 11:13 AM Subject: Re: [Elecraft] P3 question As I recall some of the discussions at the Santa Barbara Hamfest, a mouse interface would greatly complicate the design of the P3. The standard computer-to-mouse interface requires a software driver which is not trivial to design and maintain (drivers are written in machine code for a specific processor architecture.) IMO though, It should be possible to design a mouse-like remote to the P3 that emulates the knob and buttons. 73, Fred, AE6IC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] P3 question
Hi Dick Yes, I used to use a trackball with my Mac at work for doing drawings. Great tool for the purpose. Sure would be slick if someone could figure out a way for the P3 to look like a second monitor when using a logging program and let the cursor run back and forth between the screens. 73, Bob N6WG - Original Message - From: Dick Dievendorff die...@comcast.net To: Bob Tellefsen n...@comcast.net Cc: Fred Atchley hamkt...@att.net; Elecraft@mailman.qth.net Sent: Saturday, December 26, 2009 1:13 PM Subject: Re: [Elecraft] P3 question Older mice (the ones with mouse balls) used two rotary encoders to sense and count movement in two directions. The P3 uses a single rotary encoder and a knob to position a vertical line on a horizontal scale. The same encoder is used for P3 menu selections. A mouse is but one kind of pointing device. Currently the most common of course. 73 de Dick, K6KR Sent from my iPhone On Dec 26, 2009, at 11:28 AM, Bob Tellefsen n...@comcast.net wrote: Thanks Fred Happy New Year Bob N6WG - Original Message - From: Fred Atchley hamkt...@att.net To: Elecraft@mailman.qth.net Sent: Saturday, December 26, 2009 11:13 AM Subject: Re: [Elecraft] P3 question As I recall some of the discussions at the Santa Barbara Hamfest, a mouse interface would greatly complicate the design of the P3. The standard computer-to-mouse interface requires a software driver which is not trivial to design and maintain (drivers are written in machine code for a specific processor architecture.) IMO though, It should be possible to design a mouse-like remote to the P3 that emulates the knob and buttons. 73, Fred, AE6IC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 in the CQWW contest
Even at 5w, I get the same complaints. My K3 will let me slip in between big sigs and snipe away. They can't take the heat :-) KB and 73 Bob N6WG - Original Message - From: Jim Brown j...@audiosystemsgroup.com To: Elecraft Reflector elecraft@mailman.qth.net Sent: Monday, November 30, 2009 1:49 PM Subject: Re: [Elecraft] K3 in the CQWW contest On Mon, 30 Nov 2009 12:37:46 -0500, DOUGLAS ZWIEBEL wrote: What a great radio Yes. Several times I got complaints from guys who came on my new run frequency to complain when I landed too close to theirfrequency on 40M. Thanks to my K3, I didn't even know they were there, and couldn't hear them with my IF opened up to 400 Hz. Can't blame it on my TX -- on CW, I can run 500 Hz away from my close-in neighbors who also use K3s. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Freq switching with 2nd rcvr question
For background, my purpose is to work both cw and ssb in the coming ARRL 10m contest. My K3 has the KRX3 installed. I want to use the primary receiver and transmitter (T1R1) on one mode, while using R2 to scan (manually) the other mode. If I'm currently working cw with T1R1, but hear a new SSB station in R2 that I want to work, I want (need) to press the A/B button (or some other) to swap frequencies between T1R1 and R2. This should swap the receiver characteristics also, (filter BW, ANT selection, etc). So far, I seem to be able to do much of this with the A/B switch, but the ANT selection doesn't switch. Is there some way to get the ANT selection to along with this? Thanks and 73 Bob N6WG The Little Station with Attitude __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KAT3 tutorial
I've seen a bunch of comments flying by about this tutorial, but I can't find it anywhere. Is it real, or just a reference to the mass of messages that have been posted? Thanks and 73 Bob N6WG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft moving this week to larger quarters
Way to go, Eric. And just where might this magnificent new abode be located? 73, Bob N6WG - Original Message - From: Eric Swartz -WA6HHQ, Elecraft e...@elecraft.com To: Elecraft Reflector elecraft@mailman.qth.net Sent: Wednesday, October 28, 2009 4:09 PM Subject: [Elecraft] Elecraft moving this week to larger quarters Thank to the huge response by our customers this year (on the K3 and all of our other products) we are moving the company to a larger facility. 2x the space for about the same cost as where we are now. (This is a great time to negotiate for commercial office / RD / mfg. space..) We will be moving Thursday and Friday this week (and through the weekend.) Please give us a little extra time to respond to emails and tech support/parts requests for the next several days. Our sales department will be 100% available for email and phones both Thursday and Friday. Our tech support group will be on-line for email the whole time and available on the phone for some of Thursday, but not Friday. Of course the web page and order form will be 100% available. Any calls or emails we don't immediately respond to will be handled first thing next week. We hope to be up and running full steam this Monday, Nov 2. :-) Here's a picture of the new building: http://www.elecraft.com/images/elecraft_new.jpg 73, Eric WA6HHQ -- _..._ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] NEW: K3 Front Panel Switch Customization (createyour own SPLIT function, etc.)
Wayne Would your programming language support SWHA as a code for this? Or is limited to 3 characters? 73, Bob N6WG - Original Message - From: Wayne Burdick n...@elecraft.com To: drewko drew...@verizon.net Cc: Elecraft@mailman.qth.net Sent: Saturday, October 24, 2009 9:18 AM Subject: Re: [Elecraft] NEW: K3 Front Panel Switch Customization (createyour own SPLIT function, etc.) There's no way to activate the few long hold switch functions yet, but I'll add that to the list. You can activate normal scanning using an SWH (switch hold) command. 73, Wayne N6KR drewko wrote: Hi Wayne, Is there a switch emulation for SCAN AF ON (i.e., long hold on the SCAN button)? Or some other way to do it? 73, Drew AF2Z __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Need more than one serial port?
Paul Have you looked at a port replicator for your TP? I have a T23 and it has both serial and USB ports available that way. 73, Bob N6WG - Original Message - From: Paul paul.rei...@earthlink.net To: elecraft@mailman.qth.net Sent: Saturday, October 10, 2009 8:23 AM Subject: [Elecraft] Need more than one serial port? I am working on the BESCOTP award--the Bought Every Single Cable On The Planet award... The DB-9 serial port on the back of the K-3 here has a special cable running to the Steppir antenna controller. Now I need to access the same port from the computer for another application, mainly my contest logger/keying. I have a Micro Keyer and my old cable for it was for a Icom Pro II. I have to buy a new one for the K-3, but it is $85 ! I'd go ahead and do it, but I'm not sure how to hook all this up! So, how are you contesters out there doing that? Is there a Y cable made for DB-9? If so, wouldn't that pin out be different than the one for the SteppIR and cause problems? A secondary problem is that the computer only has USB ports, no serial port. It's an IBM Thinkpad. I believe it has 4 USB 2.0 ports available. Any info would help! Thanks, Paul WY7I __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Two radios on different bands using ANT1 and ANT2
Hello Jarda Here's one idea. Use your logging program to make the changes. You could program the A/B change to be followed by the Ant1/Ant2 change, all at the press of one button. Just how you do this will depend on which logging program you are using. It would be easy in TR Log. I think it can be done in N1MM but I'd have to ask someone who knows the program better than me just how to do it. Good luck and 73 Bob N6WG - Original Message - From: Jaroslav Chmelík jaroslav_chme...@seznam.cz To: elecraft@mailman.qth.net Sent: Saturday, October 10, 2009 1:25 PM Subject: [Elecraft] K3 Two radios on different bands using ANT1 and ANT2 I encountered a problem when I tried to use the K3 with Main/Sub receivers on two different bands. Configuration: - K3 with installed second receiver - Second receiver connected to KAT3 (KRX3 ANT=ATU) - Set independent VFOs (VFO IND=YES) - SW versions: MCU 3.14, FPF: 1.00, DSPs: 2.16 Operational condition: - SUB ON with Linked VFOs (but it behaves equally when independent) - Main radio (VFO-A) on 20m band and switched to ANT1 connector of KAT3 - SUB radio (VFO-B) on 40m band and switched to ANT2 connector of KAT3 - I am searching two bands in parallel using bigger (A) tuning knob When I find a station on Main radio (VFO-A 20m band), I can call it immediately without any problem. But when there is a station on SUB radio (VFO-B 40m band), then I hit A/B button, which swaps bands. Now, 40m band is on VFO-A so theoretically I could call the station (transmit). But, to my surprise it doesn't swap respective antenna connectors. So, with inappropriate antenna it has high SWR and I can’t transmit. Naturally, a listening is nearly impossible with inappropriate antennas. It seems that although K3 remembers antenna connector settings for each band (and even ATU settings within bands), this doesn't apply when swapping MAIN/SUB receivers. Yes, there is a seemingly easy solution: At first hit the A/B button (swaps bands), and then ANT button (swaps antennas). But this isn't very handy. One has to switch both buttons back, when QSO is finished, and it represents several wasted seconds, that can be very valuable during contest. (these buttons are on the opposite sides of the front panel) I think it would be fine, especially during SP operation in QRP categories in contests, if K3 (without any additional hardware) could be used in such a semi (or pseudo?) SO2R set-up. Is there anything that can solve this problem? Maybe, I am missing something in the CONFIG MENU. Or, is there any technical (hardware) reason, which excludes that? Jarda OK1HDU __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Output Power Question
Hi Bill If you find out that the K3 is most stable near the middle or top of its power range, you could insert a homebrew power attenuator between the K3 and your amp. That would let the K3 run at its optimum power for stability and still keep the power within the input limits for your external amp. Plus, having a clearly resistive load might contribute to greater power output stability for the K3. Good luck and 73 Bob N6WG - Original Message - From: Bill Miner w...@yahoo.com To: Elecraft@mailman.qth.net Sent: Tuesday, May 19, 2009 12:41 PM Subject: [Elecraft] K3 Output Power Question Hello Elecrafters, I would like to know how stable the output power of the 10 watt K3 is when set to true QRP levels. I'm asking because my K2 power setting is not very accurate when I try to set it to anything much less than 5 watts. Would it be possible to safely drive an external amplifier that requires 1 watt maximum drive? Thanks 73, Bill - K6WLM KX1 K2 K3 (soon!) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K2] NB question re: pulse noise problem here
Ron It's a very inexpensive option. I'd try it. I have it in both my K2s and it works just fine on some noises and not on others. Even the K3 has this problem though. Good luck and 73 Bob N6WG - Original Message - From: Ron Greene rgte...@roadrunner.com To: elecraft@mailman.qth.net Sent: Monday, May 04, 2009 2:01 PM Subject: [Elecraft] [K2] NB question re: pulse noise problem here On the 40M band only I'm getting an S7 pulse noise during much of the day making 40M nearly unusable. Most nights I don't hear it but last night it was just as bad as during the day. The pulse's are approx. 30hz and short in duration. My antenna is a vertical (my only option here). I would like to know if you think the K2 Noise Blanker option might block these pulses. I'm doubtful but if anyone thinks it might I'll get it asap. Other than this pulse noise I don't have any unusual noise noise issues. Ron N7IB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Manual change suggestion
The RX OUT/RX IN ports allow you to insert whatever you want in the receive path for the main rcvr. It could be a filter, a preamp, an attenuator or whatever. 73, Bob N6WG - Original Message - From: W0MU Mike Fatchett w...@w0mu.com To: 'Ken Widelitz' widel...@gte.net; elecraft@mailman.qth.net Sent: Saturday, March 14, 2009 3:18 PM Subject: Re: [Elecraft] K3 Manual change suggestion It is also unclear what the real purpose is for the rx ant out. From what I have been told if I want to share my rx antennas with the two receivers then I should use a T or splitter and go to each input separately. I would think that RX Ant Out would allow you to take the RX antenna to another rig or something. If I recall correctly was it to be used for some type of flitering? A slip of the foot you may soon recover, but a slip of the tongue you may never get over. Ben Franklin -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ken Widelitz Sent: Saturday, March 14, 2009 3:54 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 Manual change suggestion I've been studying the Main/Sub RX Antenna Routing section with an eye towards how the RX ANT OUT is used. Unless I'm missing something, it isn't clear in the manual. The answer, YOU NEED TO TURN ON THE RX ANT, is contained, in a different context, in the following reflector post from Wayne, which should be integrated into the manual. 73, Ken, K6LA / VY2TT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] EQP firmware sneak preview
Now we're talking. A bunch of I really want this in there. Very many thanks, Wayne. 73, Bob N6WG - Original Message - From: wayne burdick n...@elecraft.com To: Elecraft Reflector elecraft@mailman.qth.net Sent: Sunday, March 15, 2009 5:18 PM Subject: [Elecraft] EQP firmware sneak preview I had a lot more contacts in EQP this year. Pent-up demand due to not having one in 2008, maybe? Thanks to all who participated! I heard lots of strong stations working hard to dig out the little guys (and even giving real reports -- hi). I also had a chance to try out the latest K3 firmware under contest conditions. It's a major revision, including: - Sub receiver band independent of main - Multiple ATU LC setups stored on each band, eliminating the need to re-tune when you QSY - ATU mode (auto/bypass) stored separately per-band/per-antenna - New AGC settings for use in multi-signal situations - A method for removing fast-tuning receive spurs - Extended frequency coverage on transverter bands with a 10-m I.F. - Improved SSB and DATA power control Etc. We hope to make this revision available for beta test soon. 73, Wayne N6KR --- http://www.elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K2 vs K3
John The K3 is a very portable QRP radio. I've used it the past two Field Days with battery power and my solar panels to keep the batteries up. Great field radio. No feel for the 100w unit on batteries though. 73, Bob N6WG - Original Message - From: John Jolley jjol...@columbus.rr.com To: 'elecraft List' elecraft@mailman.qth.net Sent: Thursday, March 12, 2009 4:17 PM Subject: Re: [Elecraft] K2 vs K3 So for the discussion about K2 vs K3, I don't know much about either but am preparing to purchase. Is the K3 portable to any degree? One of the things that attracted me to the K2 was not only building it but the fact that at least at low power, it was very portable. Thanks in advance! -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ron D'Eau Claire Sent: Thursday, March 12, 2009 11:29 AM To: 'elecraft List' Subject: Re: [Elecraft] K2 vs K3 And they sold quickly from the beginning. My K2, purchased in April of 2000, is S/N 1289. At that time they had a 30-day order backlog. Ron AC7AC -Original Message- Bob's comment is correct. I was at that meeting also, and was absolutely blown away by the performance in such a small prototype package. Milt, N5IA On Mar 11, 2009, at 4:53 PM, K2ZLS wrote: Many of us on the Elecraft Reflector were raised on the K2. I guess its been about 8 years in development. More like 10+ years. I recall seeing Eric's presentation on the K2 at the 1999 Cactus Intertie meeting in Tucson. Bob, N7XY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Whaddayaknow... passed the Extra
Congratulations, James. It's always satisfying to reach a goal. Now what will you do for an encore? Good luck and 73 Bob N6WG - Original Message - From: James Sarte kc2...@gmail.com To: elecraft@mailman.qth.net Sent: Sunday, March 08, 2009 10:59 AM Subject: [Elecraft] Whaddayaknow... passed the Extra Hello fellow Elecrafters, Sorry for the OT post here guys, but I just wanted to share with you that I passed my element 4 exam today with flying colors. Hope to have my license info updated on the ULS within a few days! 73, James KC2UEE (soon to be K3JPS) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Whaddayaknow... passed the Extra
FB James You're certainly in a situation that calls for some innovative thinking to have a working antenna. I hope the MP-1 and Buddipole at least let you get on the air. Best wishes for a new house with a good rf QTH. 73, Bob N6Wg - Original Message - From: James Sarte kc2...@gmail.com To: 'Bob Tellefsen' n...@comcast.net; elecraft@mailman.qth.net Sent: Sunday, March 08, 2009 11:54 AM Subject: RE: [Elecraft] Whaddayaknow... passed the Extra Hi Bob, Thanks for your email! Not sure what I'll do for an encore... I think I'm pretty set for now. Perhaps my next move will involve buying another house (sold my first one, and now in an apartment), where I can actually put up a real antenna instead of my little MP-1 or Buddipole. :) 73, James KC2UEE -Original Message- From: Bob Tellefsen [mailto:n...@comcast.net] Sent: Sunday, March 08, 2009 2:52 PM To: James Sarte; elecraft@mailman.qth.net Subject: Re: [Elecraft] Whaddayaknow... passed the Extra Congratulations, James. It's always satisfying to reach a goal. Now what will you do for an encore? Good luck and 73 Bob N6WG - Original Message - From: James Sarte kc2...@gmail.com To: elecraft@mailman.qth.net Sent: Sunday, March 08, 2009 10:59 AM Subject: [Elecraft] Whaddayaknow... passed the Extra Hello fellow Elecrafters, Sorry for the OT post here guys, but I just wanted to share with you that I passed my element 4 exam today with flying colors. Hope to have my license info updated on the ULS within a few days! 73, James KC2UEE (soon to be K3JPS) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Your Opinion: The realities of QRP vs. QRO
Hi Bill No QRP 160 DXCC here. I rarely even hear DX on 160. But I do have QRP WAS on 160m. Must not be too common, as ARRL couldn't recall the last time they had issued one. 73, Bob N6WG - Original Message - From: Bill W4ZV btipp...@alum.mit.edu To: elecraft@mailman.qth.net Sent: Friday, March 06, 2009 9:34 AM Subject: Re: [Elecraft] Your Opinion: The realities of QRP vs. QRO Gary D Krause wrote: Just as long as we all keep it in perspective and realize that QRP RULES! ;-) But QRP simply does NOT rule everywhere... ...for DXing on the low bands (80/160), ...for EME or meteor scatter on VHF, ...when propagation is marginal or atmospheric QRN is high, ...in emergency communications when a life depends on it. Sure QRP works well on the HF bands when conditions are good...it's a heck of a lot of fun to work across the world with a 2 Watt rig in an Altoids tin and a piece of wire...but please don't make blanket statements about QRP ruling for many activities...it simply doesn't. If QRPers want a REAL challenge, try working DXCC on 160m with 5 Watts. 73, Bill W4ZV (who loves both) -- View this message in context: http://n2.nabble.com/Your-Opinion%3A-The-realities-of-QRP-vs.-QRO-tp2429074p2437055.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Transmit thru Line-In
That doesn't sound right, Michael. I'm using N1MM Logger in my laptop for SSB contests so I can use the voice keying feature. I have the laptop output going into the Line In jack on the K3 rear panel. Has been working just fine for me. I do have the VOX selected for keying the radio when voice comes from the laptop. 3 Bob N6WG - Original Message - From: The Smiths notforc...@hotmail.com To: Elecraft Reflector elecraft@mailman.qth.net Sent: Thursday, March 05, 2009 9:58 AM Subject: Re: [Elecraft] K3 Transmit thru Line-In Dont bother with the line in unless you plan to use DATA mode. The jack doesn't seem to activate unless you're in the data mode. Or at least that's what I've found. Turn your gain back up, switch to data mode, then put the VOX on, and try again. I think that you'll find it works just fine. Michael N6MQL _ Express your personality in color! Preview and select themes for Hotmail®. http://www.windowslive-hotmail.com/LearnMore/personalize.aspx?ocid=TXT_MSGTX_WL_HM_express_032009#colortheme __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Your Opinion: The realit..
Boy, that is certainly true, Bill. I'm a full time QRPer and avid contester. It's fairly easy to tell the alligators from those with jackrabbit ears. I never ID as QRP in contests. The regulars know me and that I'm QRP. When necessary, they make the extra effort to complete the QSO. Those that don't know me just work the QSO and move on, which is the way I like it. Even those that I don't catch right away, go into my band map. I get them eventually. 73, Bob N6WG The Little Station with Attitude - Original Message - From: Bill W4ZV btipp...@alum.mit.edu To: elecraft@mailman.qth.net Sent: Thursday, March 05, 2009 10:03 AM Subject: Re: [Elecraft] Your Opinion: The realit.. wayne burdick wrote: But I will lay down the following challenge for you: Next time you hear an S9+20 station calling CQ, try turning the K3 down to 1 watt and calling him, just for grins. All other things being equal, if he's running a KW, you should be about S7 at his QTH. I'm on both sides of this debate. I like to transmit a strong signal (gain antennas and 1.5kW) but I also get a huge thrill when a QRP station replies and I can copy him (thanks to the K3, diversity and good RX antennas). I'm typically the guy Wayne is calling above. I still remember working an OH on 10 meters in ARRL DX CW a few years ago and doing a double-take when he sent 599 TR4 (0.4 Watts or 400 milliwatts). I also worked several QRP stations from Europe on 160 in the ARRL DX a few weekends ago. This 3830 post from OL0W (operator OK1DSZ) was fun to read: Only for fun, when the band was already closing, I decided to try what I will be able to work with QRP. Using longer callsing OK1DSZ and the power reduced to 5W I spend about 10 minutes calling several east coast big guns. The award for the best ears goes to W4ZV, who was worked as easily as with the kilowatt earlier in the night. K8PO and W2FU were worked with several repeats. The others just kept CQing without any reaction with exception of K1TTT, who apparently heard something, but not enough for the QSO. http://lists.contesting.com/archives//html/3830/2009-02/msg01298.html I also love to transmit QRP in the field with simple wire antennas (using an ATS-3 or K2). It's especially fun to answer big European contest stations. You can very quickly tell who produces their strong signal with a BIG amp versus ones doing so with antenna gain. The former are often total alligators but it's amazing how quickly some of the latter will pick you up. 73, Bill W4ZV -- View this message in context: http://n2.nabble.com/Re%3A-Re--Your-Opinion%3A-The-realit..-tp2430731p2431053.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 birdies - question?
James When you start looking around for sources of these external signals, be prepared for some surprises. I had a fairly strong signal on 10m that was a real nuisance. I turned off the power to my house and it went away. I finally found it in the controller for our air mattress in the bedroom. Now, during a serious 10m effort, like the ARRL 10m contest, I just unplug the controller until after the contest. 73, Bob N6WG - Original Message - From: KC2UEE kc2...@gmail.com To: Richard Ferch ve3...@storm.ca Cc: elecraft@mailman.qth.net Sent: Wednesday, March 04, 2009 8:15 AM Subject: Re: [Elecraft] K3 birdies - question? Rich, Many thanks for your reply. From your description, it then sounds as if I'm hearing a real signal. I do have a theory that there may be some sort of electronic signal getting into my feedline. My coax isn't routed ideally, as a good portion of it runs between two entertainment centers chock full of transformers, etc. These birdies or signals as I hear them change in pitch over a wide range, not just 100Hz. For example, if I start at 28.375, I can hear a solid tone. As I go to 28.376, the tone pitch increases and so on until it peaks at 28.380. At 28.381, I can no longer hear it. If I go back down in frequency, the pattern repeats itself with the tone pitch decreasing. I seem to hear these birdies spaced every 500-700 KHz. I'm going by memory now as I don't have the rig in front of me. If I remove the antenna, most of them go away. When I say most, I'd guess about 98% of them. Only some which are very strong are still barely audible, but their behavior doesn't change as I tune around. They are not by your description fast tuning. With the antenna connected, the loudest of these signals will peak my S-meter at S3. With no antenna, it may be an S0-S1. Interestingly, removing the antenna does not affect the sub receiver as I can still hear them a little bit when the sub is set to ANT1. Switching the sub to the BNC though, and all remaining signals disappear. I'll have to play around a little bit more to determine the origin, but I was surprised to suddenly hear all of these signals spaced quite evenly apart. I began to think that this was synthesizer noise, as it does sound similar to the DDS signals. I remember telling Wayne over the phone that I was pleasantly surprised after the build, because the first thing I did was to tune around the entire frequency range with no antenna attached to test for birdies, and I did not hear any at all. 73, James KC2UEE On Wed, Mar 4, 2009 at 10:07 AM, Richard Ferch ve3...@storm.ca wrote: James, Any signal coming in from the antenna will change pitch when you tune the radio in CW, SSB or DATA mode. That's not how you tell a birdie from a real signal - it's removing the antenna that distinguishes them. A real signal will either disappear entirely or at least become much weaker when the antenna is removed. Internal birdies, on the other hand, usually sound louder when the antenna is removed, because the noise floor surrounding them drops. Note also that there is a difference between the situation with nothing connected to any of the K3's antenna connectors, and having anything at all, such as an antenna switch or a dummy load or just a short piece of coax, connected to one of the connectors. If the signal is still there with nothing whatsoever touching any of the antenna connectors, then it is likely a birdie internal to the radio. From your description, it sounds as if you are hearing external signals, not birdies. There are different kinds of birdies. Some are on fixed frequencies, just like real signals, and others are harmonics that tune more rapidly than real signals. The birdies that are removed by the new signal removal feature are the ones that change pitch abnormally rapidly as you tune the radio. With a real signal, if you change the receiver's frequency by 10 Hz, the pitch of the signal changes by 10 Hz. With one of these fast birdies, changing the tuning of the radio by 10 Hz might cause the pitch of the birdie to change by 300 Hz. These fast birdies also change pitch when you rotate the Shift control - real signals do not. Using a 2.7 kHz roofing filter, as you tune past a real signal it will be audible over a tuning range of about 2.7 kHz, and will sweep steadily from very low to very high pitch (or vice versa) as you tune past it. In contrast, a fast birdie might only be audible over a tuning range of about 100 Hz, i.e. as you tune the radio past the birdie it will jump right across the audible range of pitches within only 100 Hz of dial movement. These are the birdies that the signal removal feature works on. It doesn't work on birdies that are on fixed frequencies and tune like real signals. 73, Rich VE3KI __ Elecraft mailing list
Re: [Elecraft] K3 Audio out artifacts
Hi Scott Out of curiousity, on the headphone output, are you running it directly into a sound card to use SpectrumLab? Or do you have some amount of resistive load on the audio output with measurement across the load? 73, Bob N6WG - Original Message - From: Mike Scott m...@paxsen.com To: Elecraft@mailman.qth.net Sent: Monday, March 02, 2009 9:36 AM Subject: [Elecraft] K3 Audio out artifacts I have been investigating audio artifacts in connection with the K3 AGC hold experimental firmware. As a reminder, I live in a high noise area. As part of the investigation I have been looking at both Line Out and headphone audio using Spectrumlab on my PC. I am finding substantial 60-hz contamination on headphone audio that I do not see on Line Out. On Line Out I see what looks like fairly clean audio with donor lines at 2400 Hz and 3600 Hz outside the rx filter pass band (1 KHz DSP filtering). I presume these are the 40th and 60th harmonics of 60 Hz. They are 50 dB below noise background noise. With only a change of where I plug the PC audio cable (moving from Line Out jack to rear headphone jack) the audio looks quite different. Now I see a whole array of 60 Hz artifacts. The 3rd and 5th harmonics are about equal to comfortable listening level audio. As I look higher in frequency the harmonics generally reduce in level but only to about 20 dB below comfortable audio listening level. There is also a broad artifact (300 Hz wide) at roughly 3300 Hz that is also 25 dB down. The artifacts do not go away with reduced volume control settings but remain a constant feature of headphone audio out at any setting. Is there something about my test set up that I do not understand? Does anybody else see contamination of headphone audio on their K3? Could there be something wrong with my K3? Could transformer coupling (Line Out) vs direct coupling (headphone) be adding something to my test set up that I am not factoring into the problem? I have never quite believed the audio of my K3 was like Wayne says it should be but can make it better using slow AGC (separate post), I doubt that has anything to do with the artifacts I see here. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) NAQCC 3535 K3-100 #508 / KX1 #1311 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] spam?
MessageI got it too and dumped it immediately. 73, Bob N6WG - Original Message - From: DeniseWerner To: Elecraft List Sent: Thursday, January 22, 2009 2:41 PM Subject: [Elecraft] spam? Not sure if this is an old problem but I just received an e-mail through this reflector about adding me to Reuniondotcom. I don't bite on this type of messaging but just was curious if anyone else has gotten this. I don't believe the senders name was aware of this but just the same looked it up on Google and it all looks like an address gathering system. WernerN8BB -- ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KRC2 - More than one antenna per band? Aux outputs?
Hi Dana I can think of several ways to do what you want, but they will take a little bit of building. One way would be for you to make a small relay box that would connect your 40m antennas to ANT1 and ANT2 of the KAT3 ATU. On other bands, you could have whatever other antennas you use connected to ANT1 and ANT2, but switch to the 40m antennas on 40m. The relays in the box can be controlled from the KRC2, which is the way I switch my antennas here. GL and 73 Bob N6WG - Original Message - From: Dana Roode dana.ro...@gmail.com To: elecraft@mailman.qth.net Sent: Tuesday, January 06, 2009 7:06 AM Subject: [Elecraft] KRC2 - More than one antenna per band? Aux outputs? Greetings, Is there a way to select more than one antenna per band with the KRC2? IE, I have a 40 meter 4 square and a dipole, can I automatically select one when I go to 40 and still be able to select the other on manual command? I need to do this remotely. Similar question, there are a few Aux outputs on the KRC2, how does one control those remotely (that is, via the serial interface or some other means)? I have to select directions on my 4 square, and switch in and out a series capacitor on my 80 meter vertical for SSB. Dana, K6NR ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 and constant tone!
In CW mode plug the FS into the KEY jack. It will look like a key and key the TX as long as you push the FS down. 73, Bob N6WG - Original Message - From: JIM DAVIS nn...@astound.net To: elecraft@mailman.qth.net Sent: Tuesday, December 30, 2008 6:58 PM Subject: [Elecraft] K3 and constant tone! Is there any way of using a foot switch to activate a constant tone for either tuning a external antenna tuner or tuning up a linear amp instead of PUSHING IN THE XMIT/TUNE BUTTON??? I've got a Heil Foot-switch and headset but even when in CW mode depressing the FS only activates the xmit led but no constant-tone/carrier. Any ideas??? Jim/nn6ee ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 power in RTTY
Hi Julian Since I'll be operating QRP at 5w, I doubt the PA will be stressed. GL and 73 Bob N6WG - Original Message - From: Julian, G4ILO julian.g4...@gmail.com To: elecraft@mailman.qth.net Sent: Monday, December 22, 2008 7:20 AM Subject: Re: [Elecraft] K3 power in RTTY Bob Tellefsen wrote: I understand the 100w version has to watch its power level when used in high duty cycle modes. Does anyone know about the 10w version? I'll be doing RTTY with my K3 at 5w. I assume that is low enough for the 10w PA to get along fine, but I'd like to know for sure. Couldn't find a mention in the manual. Actually I thought the 100W version was rated at full power key down for 10 minutes. Personally I wouldn't try it, but I'm sure that's what the spec says. I haven't seen a similar spec for the 10W version. I asked a similar question a few months ago but never received a reply. It's actually relevant even for those who have the PA if they should decide to operaste at a power of 10W, because the PA only kicks in at 12W, so at 10W the small PA is doing all the work. Since it only has the bottom of the case for a heatsink and no fan assistance at all, I'm not at all sure that it could handle 10W key down for 10 minutes, but I'm not going to try to find out the hard way. - Julian, G4ILO. K2 #392 K3 #222. http://www.g4ilo.com/ G4ILO's Shack http://www.ham-directory.com/ Ham Directoryhttp://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 -- View this message in context: http://n2.nabble.com/K3-power-in-RTTY-tp1687918p1690390.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 power in RTTY
I understand the 100w version has to watch its power level when used in high duty cycle modes. Does anyone know about the 10w version? I'll be doing RTTY with my K3 at 5w. I assume that is low enough for the 10w PA to get along fine, but I'd like to know for sure. Couldn't find a mention in the manual. 73, Bob N6WG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Scan Rate Adjustment
Is there any adjustment somewhere to slow down the scan rate? Mine goes too fast, and by the time I hear a station the K3 has shot past it, and it's hard to get back to the station's frequency. Any info? Thanks and 73 Bob N6WG___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 AF Upgrade Kit (for speaker amplifier and LINE OUTs)
Wayne Can you tell us the serial number at which these changes were incorporated? We need to know who needs to order them and who does not. Thanks and 73 Bob N6WG - Original Message - From: wayne burdick [EMAIL PROTECTED] To: Elecraft Reflector elecraft@mailman.qth.net Sent: Thursday, November 13, 2008 10:40 AM Subject: [Elecraft] K3 AF Upgrade Kit (for speaker amplifier and LINE OUTs) With minor circuit changes, both the K3's speaker amplifier and line outputs can provide lower IMD (intermodulation distortion) at higher signal levels. We've been testing these changes for a couple of months, and have already phased them into production. These changes can easily be made to existing K3s. A kit of parts is available (K3AFMDKT). All parts are leaded (not surface mount), and full instructions are provided. See: http://www.elecraft.com/order_form_parts.htm#K3%20Parts Details --- SPEAKER AMP: The mod kit includes a very low-resistance RF choke for use at RFC47 on the RF board. This improves speaker amplifier IMD by as much as 25 dB at moderate to high AF GAIN settings by reducing the voltage drop across RFC47 during signal peaks. LINE OUT: The kit also includes smaller resistor values for R19 and R20 on the KIO3 module. At present R19 and R20 are about 600 ohms, while the replacements drop the resistance to around 50 ohms. The smaller resistors increase the available voltage swing at the output of the LINE OUT transformers, which improves IMD at higher signal levels. These two changes are independent. For example, if you never use LINE OUTs, you might want to do only the speaker amp modification. 73, Wayne N6KR --- http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KDVR3
I see from the E'craft web page that the KDVR3 is to start shipping 11/30/08. Is it firm enough now that we can get some description info on it? I'd really like to know what it is supposed to be able to do. I had cancelled my original order for it due to a lack of detailed info. Thanks and 73 Bob N6WG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] 6m preamp news?
Does anyone know how the 6m preamp kit is coming along. Been a while since the field testers got theirs. I'd think it should be close by now. Anyone know? 73, Bob N6WG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KXR3 scanning?
I just received my KXR3 kit yesterday. Been poking through the manual, but haven't found any info yet on whether it can be scanning one band while the main K3 is operating on another band. I'm thinking of having it scan 10m for the little bits of activity there, while I'm working on lower bands. Does anyone know if this is possible yet? Thanks and 73 Bob N6WG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Problem with new firmware dowload
Just did the new firmware dowload, and trying to set up the new Transmit Noise Gate. Problem is: Directions say got to CONFIG:TX GAIN and tap 1. I only show CONFIG:TXGN LP, with a current setting of 18. No response when tapping 1. What do I do now? Thanks and 73 Bob N6WG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Problem with new firmware dowload
Hmmm Don't have TX GAIN, just CONFIG:TXGN LP. Checked CONFIG with TECH MD ON and OFF. Also checked MENU. Directions say To use the noise gate, locate CONFIG:TX GAIN, tap '1' to turn it ON Just loaded the latest firmware from E'craft site and no TX GAIN or TX GATE there. Sorry about the font shift here. Help! 73, Bob N6WG - Original Message - From: Vic K2VCO [EMAIL PROTECTED] To: Bob Tellefsen [EMAIL PROTECTED] Cc: Reflector Elecraft elecraft@mailman.qth.net Sent: Wednesday, October 01, 2008 1:58 PM Subject: Re: [Elecraft] Problem with new firmware dowload Bob Tellefsen wrote: Just did the new firmware dowload, and trying to set up the new Transmit Noise Gate. Problem is: Directions say got to CONFIG:TX GAIN and tap 1. I only show CONFIG:TXGN LP, with a current setting of 18. No response when tapping 1. Not CONFIG: TX GAIN CONFIG: TX GATE :-) -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Problem with new firmware dowload
Hi Dave and Vic and Brett and Toby Finally figured out the problem. I had the downloaded zip file in C:\K3 Utility\beta 2r45 but when I unzipped it, it created a new subfile, C:\K3 Utility\beta 2r45\k3fw2r45.zip. I finally copied the contents of this file back into C:\K3 Utility\beta 2r45 and things started to work. Whew! At least I was able to muddle through. That's what I get for downoading infrequently. I appreciate everyone's input. We finally got it together. Thanks and 73 Bob N6WG The Little Station with Attitude - Original Message - From: David F. Reed To: Bob Tellefsen Cc: Reflector Elecraft Sent: Wednesday, October 01, 2008 2:04 PM Subject: Re: [Elecraft] Problem with new firmware dowload Bob, Go back and try again. I think you are looking at the wrong menu item; you are seeing CONFIG TXGN HP or LP, and the number; go counterclockwise from there (B knob) 2 steps, to CONFIG TX GATE; it will show on or off, and the level of it... 73 and Good Luck de Dave, W5SV Bob Tellefsen wrote: Just did the new firmware dowload, and trying to set up the new Transmit Noise Gate. Problem is: Directions say got to CONFIG:TX GAIN and tap 1. I only show CONFIG:TXGN LP, with a current setting of 18. No response when tapping 1. What do I do now? Thanks and 73 Bob N6WG___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Problem with new firmware dowload
Hi Lyle and Don and Monty Finally figured out the problem. I had the downloaded zip file in C:\K3 Utility\beta 2r45 but when I unzipped it, it created a new subfile, C:\K3 Utility\beta 2r45\k3fw2r45.zip. I finally copied the contents of this file back into C:\K3 Utility\beta 2r45 and things started to work. Whew! At least I was able to muddle through. That's what I get for downoading infrequently. I appreciate everyone's input. We finally got it together. Thanks and 73 Bob N6WG The Little Station with Attitude - Original Message - From: Monty Shultes [EMAIL PROTECTED] To: Bob Tellefsen [EMAIL PROTECTED]; Vic K2VCO [EMAIL PROTECTED] Cc: Reflector Elecraft elecraft@mailman.qth.net Sent: Wednesday, October 01, 2008 2:30 PM Subject: Re: [Elecraft] Problem with new firmware dowload Be Sure Tech Mode is ON. Just loaded the latest firmware from E'craft site and no TX GAIN or TX GATE there. Sorry about the font shift here. Help! 73, Bob N6WG - Original Message - From: Vic K2VCO [EMAIL PROTECTED] To: Bob Tellefsen [EMAIL PROTECTED] Cc: Reflector Elecraft elecraft@mailman.qth.net Sent: Wednesday, October 01, 2008 1:58 PM Subject: Re: [Elecraft] Problem with new firmware dowload Bob Tellefsen wrote: Just did the new firmware dowload, and trying to set up the new Transmit Noise Gate. Problem is: Directions say got to CONFIG:TX GAIN and tap 1. I only show CONFIG:TXGN LP, with a current setting of 18. No response when tapping 1. Not CONFIG: TX GAIN CONFIG: TX GATE :-) -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Where have all the K2s Gone?
Very true. I'm hanging onto s/n 00012, as it is now a historical artifact. :-) 73, Bob N6WG The Little Station with Attitude - Original Message - From: Don Wilhelm [EMAIL PROTECTED] To: [EMAIL PROTECTED] Cc: Elecraft e-mail list elecraft@mailman.qth.net Sent: Thursday, September 11, 2008 8:40 PM Subject: Re: [Elecraft] Where have all the K2s Gone? My K2 SN 00020 sits, fully upgraded and fully loaded, with its internal battery and KAT2 is ready to go with me portable at any time. Yes, since the advent of the K3, it is no longer the main transceiver, but it is alive and well just the same. Being a Field Test model, it will never leave me until it is pried from my 'cold, dead hands'. It is a piece of history, even though it may be only *my* history. 73, Don W3FPR ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Sn 1478
Jan Since E'craft hasn't really published much info on the KDVR3 yet, could you tell us what the manual you received says about it? What features, capabiities, etc? Many thanks. 73, Bob N6WG - Original Message - From: SM6TUW [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Tuesday, September 02, 2008 11:27 PM Subject: [Elecraft] K3 Sn 1478 For those who keeps track. Ordered 2008 April Katiegram 2008 Aug 12 Delivered 2008 Aug 1 K3/100 K3DEP KAT3 KBPF3 KDVR3 KFL3A-400 KFL3A-6K KTCXO3-1 KXV3 ProSet-K2 Completed, up and running Aug 23 73 Jan SM6TUW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] CQ 160 WW
You are quite right, Brian. We appreciate the heck out of those who have invested their time and effort in exceptional stations, have great operating skills, and have the patience to stick with us in poor conditions to complete a QSO. In good conditions, you probably can't tell a good QRP station from a mediocre LP station, or even an HP station suffering from a momentary dip in propagation. That's what makes it so much fun for us :-) Our reward comes from putting together a total system that can make itself heard at significant distances, especially on 160m. That's actually a pretty decent challenge for anyone, as witness the efforts the serious stations go to at any power level. To be able to play with the big boys in the contests, we have to wring every bit of losses out of our systems, and ensure that every one of those 5w is paying its way. Takes a lot of attention to detail, but again, we enjoy the challenge. Good luck and hope to work you in the contests. 73, Bob N6WG The Little Station with Attitude - Original Message - From: alsopb [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Saturday, August 23, 2008 10:49 AM Subject: Re: [Elecraft] CQ 160 WW With all due respect, you QRP guys need to be praising the rigs of the people who pulled your 5 watt rig out of the noise. 5 watts is 5 watts, independent of rig. 73 de Brian/K3KO Dale Putnam wrote: The certificate from CQ WW 160 2006, just arrived. Thank you all who helped make that contest happen and helped with the 1st place Single Op CW - Wyoming for me. All those folks that heard and worked me. What was fun for me was just running stations. With nothing more than a wire antenna, well... and a vertical. But is wasn't the heavy hitter that I used to have. That is still being repaired, hope to have it back for this fall. But really, thanks to everyone. Oh, and what is the Elecraft tie? It was with a K2 at 5 watts. So, all the folks at Elecraft helped too. Qrp is a blast!! Thank you all, --... ...-- Dale - WC7S in Wy _ Get thousands of games on your PC, your mobile phone, and the web with Windows®. http://clk.atdmt.com/MRT/go/108588800/direct/01/___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- View this message in context: http://n2.nabble.com/CQ-160-WW-tp777502p778601.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] 6m preamp
Does anyone have a sense of how much longer before the preamp is released? I'd like to get two, one for 6m, and one I can mod for 10m. I'm not happy with the 10m sensitivity either. Thanks and 73 Bob N6WG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] CQ 160 WW
Congratulations, Dale. QRP on 160m rocks. 73, Bob N6WG The Little Station with Attitude - Original Message - From: Dale Putnam [EMAIL PROTECTED] To: elecraft@mailman.qth.net; [EMAIL PROTECTED]; [EMAIL PROTECTED] Sent: Friday, August 22, 2008 7:49 PM Subject: [Elecraft] CQ 160 WW The certificate from CQ WW 160 2006, just arrived. Thank you all who helped make that contest happen and helped with the 1st place Single Op CW - Wyoming for me. All those folks that heard and worked me. What was fun for me was just running stations. With nothing more than a wire antenna, well... and a vertical. But is wasn't the heavy hitter that I used to have. That is still being repaired, hope to have it back for this fall. But really, thanks to everyone. Oh, and what is the Elecraft tie? It was with a K2 at 5 watts. So, all the folks at Elecraft helped too. Qrp is a blast!! Thank you all, --... ...-- Dale - WC7S in Wy _ Get thousands of games on your PC, your mobile phone, and the web with Windows®. http://clk.atdmt.com/MRT/go/108588800/direct/01/___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] 0.1 right angle header and sockets
Does anyone know if there is a site that will find SMD equivalents to standard parts? I'm looking for an SMD equivalent to the 2N5109 transistor (if there is one). Thanks and 73 Bob N6WG - Original Message - From: Joe Planisky [EMAIL PROTECTED] To: List Discussion Elecraft elecraft@mailman.qth.net Sent: Thursday, August 21, 2008 6:00 AM Subject: Re: [Elecraft] 0.1 right angle header and sockets Kevin, Have you tried searching on Octopart ( http://octopart.com )? It's an electronic parts search engine. 73 -- Joe KB8AP On Aug 20, 2008, at 10:34 PM, Kevin Rock wrote: I have been searching through Mouser and other catalogs for something I know exists. I have seen examples in both Elecraft kits and in other kits I have built. Now I want to find these parts for a project I am designing. I want a set of 0.1 right angle header and sockets. I am able to find the pin headers but cannot find the matching sockets. Where do I find right angle sockets to mate with the 0.1 header pins? I don't really want to change my design to use straight pins and sockets but may have to if I cannot find what I want. Thus I am asking for direction: where do I find the parts I know exist? I am probably not calling them the right thing but have tried a number of different names over the last four hours. Any assistance would be appreciated. Kevin. KD5ONS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Buffer Mod
There's one easy trick I learned a while back. Actually add solder to each end of the R or C to be removed. This creates a larger thermal mass that doesn't cool and harden as quickly, and gives you time to get the other end melted too. Then the part slides right off. As has been recommended before, practice first on some junk pc board with SMD parts on it. Really easy technique. Good luck and 73 Bob N6WG - Original Message - From: Tom AK2B [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Thursday, August 21, 2008 10:43 AM Subject: Re: [Elecraft] K3 Buffer Mod At 09:48 AM 8/21/2008, Jim Denneny wrote... I am about to attempt the N8LP K3 Buffer Mod for improved RX performance. It involves exchanging two, extremely small, surface-mount resistors. Chip-quick ( http://www.chipquikinc.com/newsletters/cq_new_june_2004.htm ) is great for doing SMT rework. It's a low melting temperature alloy, which you use like solder. It mixes with the existing solder to make device removal easy. It doesn't take much. Although I am a big fan of ChipQuik you should try it on an old PC board before you try it on something that might break your heart if you fail. ChipQuik can send a part flying (along with a trail of molten ChipQuik) if the part has been tacked down with an adhesive and requires a little pressure. Once you get the hang of it, on a multipin IC, it can be a life saver. I don't think I would use it on a resistor or cap though. I would go with the single iron back and forth or the two iron method. Tom, AK2B -- View this message in context: http://n2.nabble.com/K3-Buffer-Mod-tp738458p740797.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: LONG: Background info on Re: WTB: CPK for ButternutHF-6V
Hello Niel I'd like to talgate Don's comments with a small one of my own. If you should use just a single radial, you may or not be able to see the little bit of directivity the antenna will develope in the direction of the single radial away from the vertical. I did a quick check with EZNEC on a 40m vertical with one radial. There is a 5 dB front-to-back ratio, with the best signal in the direction of the radial. The flip side of this is that the antenna gain is only -1.6dB in the favored direction, and even less in other directions. You might be able to take advantage of this, if your property is aligned in desireable directions. Good luck and 73 Bob N6WG - Original Message - From: Don Wilhelm [EMAIL PROTECTED] To: Niel Skousen [EMAIL PROTECTED] Cc: [EMAIL PROTECTED]; Elecraft Reflector elecraft@mailman.qth.net Sent: Wednesday, August 20, 2008 1:29 PM Subject: [Elecraft] Re: LONG: Background info on Re: WTB: CPK for ButternutHF-6V Niel, Fine on your constraints. Remember that a vertical with raised radials is just a dipole 'on its side' with one leg (a single radial) bent at 90 degrees to the radiating element. So how does only the vertical part radiate you may ask. That happens because you add another radial physically opposite the first one, and the radiation of one radial is 180 degrees out of phase with the radiation from the other, so they cancel leaving only the vertical portion to radiate a signal. If the pair of radials are not symmetrical, then you may be just as well off with only a single radial per band. The radials must each be tuned (just like one end of a dipole) with the vertical radiator. The radials must be an *electrical* quarter wave long at the band of operation - they can be loaded with inductors near the junction with the coax shield, or they can be end loaded with a T wire, or some combination of both, but they must be resonant. If they are placed close to the ground (4 feet is close for the HF bands), there will be some effect from ground coupling that will de-tune them, so the easiest is to cut them long and do the trimming with the aid of an antenna analyzer (if there are several radials for each band, they must be tuned one at a time - connect only one and tune it, then connect only the next one and tune, etc. until done. Remember that the radials will not be 'radials' unless they are symmetrically placed around the vertical, it is of no use to run two radials for any one band out in the same direction for they will produce the same radiation pattern as a single radial. Another 'solution' is to trade that antenna for one that is an electrical half wave - which does not need radials being an antenna complete within itself. 73, Don W3FPR Niel Skousen wrote: Hi Don (and all who have offered advice help) Thanks to all for the input that has been offered. Based on some of the comments, I thought I might share the 'rest of the story', both to seek additional input, and to show the technical trade off's associated with a compromise antenna environment. I'm installing a used HF-6v in a CCR environment, so I have some environment limitations. The CCR 'enforcement' committee is not horribly aggressive, but if I don't aggravate the situation, I'm much better off. So, the HF6 will be mounted about 4' off the ground, a full elevated radial system is not possible. Choices seem to be the CPK solution from Butternut or a modified radial system. Two options are being considered on the modified radials. First, 3 tuned radials (either individual wires for 40/15, 30, 20, 15,10 or the Butternut tuned twinlead variety) could be connected at the base of the antenna, then run down (hidden in the bushes) at a 60 degree angle to ground level, then run under/around the rocks. Performance is expected to be better than the CPK, but still a compromise. Routing is not linear. Tuning of this radial environment is expected to be a bear ! The second, the CPK, is expected to be enhanced by the low elevation, but NOT as effective as a good ground radial system. I might be able to enhance this configuration by laying out a psuedo radial set of 6-10 8' wires at the base of the 4' mast, which would more accurately be a surface capacitive element to enhance the CPK's effect. In neither case will the near field ground losses be impacted. There are some spiral wound counterpoise idea's out on the web, as well as some thoughts on constant angle spirals, which are tempting, but at this juncture, I expect to lean to the CPK to get it up and running, with spirals and experiments to follow... So any additional input, idea's, are solicited and welcome Thanks again all, Niel Don Wilhelm wrote: Remember (or understand if you did not before) that elevated radials should be tuned (pruned for length) just like a part of the antenna (they *are* part of the
Re: [Elecraft] RE:balanced tuner
Hi David I use the window line on a number of my antennas. I twist the lines as a matter of course, the idea being to somewhat equalize any unbalancing effects of things in the nearby fields as the line passes by. No scientific evidence that this is of real benefit, but it makes me feel that I have at least tried to maintain what balance there may be in the total antenna system. 73, Bob N6WG - Original Message - From: David Cutter [EMAIL PROTECTED] To: Elecraft Discussion List elecraft@mailman.qth.net Sent: Monday, August 18, 2008 10:08 AM Subject: Re: [Elecraft] RE:balanced tuner For long horizontal lines near to the ground (3ft, 1m, say) I've read that some folks rotate the line between supports, supposedly to maintain balance; what do you think about that? David G3UNA - Original Message - From: list1 [EMAIL PROTECTED] To: Elecraft Discussion List elecraft@mailman.qth.net Sent: Monday, August 18, 2008 4:29 PM Subject: [Elecraft] RE:balanced tuner Hi David and all, I have done a lot of EZNEC dipole simulations and have come to the conclusion that the loss in 100 feet of coax off of resonance is about 12 dB per 100'. Whether you use RG-8x or LMR400 doesn't make too much dfference concerning losses off of resonance where your SWR with 50 ohm transmission line can be greater than 200:1. http://www.pituch.net/Steve%27s%20Page/Radio/Antenna4/Antenna4.htm Because of this if I use 450 Ohm ladder line to a 1:1 baun, I try to keep the length of coax going into the house less than 15 feet. For your 50 feet of coax run you should never have a loss greater than about 1 S unit (6 dB). When I went to 100 percent ladder line including inside the residence, when I built my balanced tuner, I used two 1/4-20 stainless steel bolts to feed the signal through the exterior wood wall. I have U solder lugs on the two wires at the end of the 450 Ohm line, and I use two wing nuts to connect the ladder line to the house connection. When I am finished operating I go outside at spend 5 seconds loosening the wing nuts and the ladder line is no longer connected to the residence. If I wanted further protction, I guess I could drive a ground rod 15 feet away from the residence and wing nut the end of the ladder line to it when I am not operating. I don't believe you can keep your antenna connected to your equipment and ever be completely protected from lightning strikes (and that includes coax). The air gaps don't work. For coax the gas surge traps may work to a degree, but I would much rather disconnect the transmission line than depend on one of these devices. If you want so-called protection for 450 Ohm line why not use 2 Alpha Delta coax surge traps - one for each wire of the 450 Ohm line? The thing about keeping the 450 Ohm line away from metal is overdone a bit. I find keeping it away from metal about 2 or 3 inches is fine. Regards, Steve, W2MY ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3/10 on Battery?
Hi Jim I ran my K3/10 on battery for FD. I used a bigger battery though, 20AH. The receiver draws more current than my K2, so I figured a bigger battery would keep me out of trouble during the weekend. You will have around 900mA drain in receive, and 2-3 amps in transmit. You could work that out to ampere-minutes on your fingers and toes, and see if the 5A gell-cell will handle things. Remember the K3 wants to see at least 11 volts from the battery, though. If you have a solar cell you can hang on the battery to stretch it some, that would certainly help. It sounds like the van battery would be your better bet, though, as it has the capacity to run you for several hours and still be able to start the motor again. Good luck and 73 Bob N6WG - Original Message - From: Jim Miller [EMAIL PROTECTED] To: Elecraft@mailman.qth.net Sent: Monday, August 18, 2008 7:40 PM Subject: [Elecraft] K3/10 on Battery? I've got a situation where I might need to operate my K3/10 on a battery. Since it's a one time (likely) deal I don't really want to drop a wad on this. I've got a 5ah gel cell that I could use. If pressed I could make a connection to the car accessory output aka cigarette lighter in the back of the van. The occasion is a QRP fox hunt where most of the 1.5hrs is listening and less than 10 minutes of transmitting at 5W. Thoughts or suggestions welcome. 73 jim ab3cv ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: K3 6m pre-amp
Yes, I have a number of 2N5109s. I use them in my HF preamps. Thanks, Jan Erik. 73, Bob N6WG - Original Message - From: Jan Erik Holm [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Thursday, July 31, 2008 4:38 AM Subject: Re: [Elecraft] Re: K3 6m pre-amp MGF1302 is a GaSFet transistor. Used to be popular in preams on 144/432 MHz amongst EME´ers. A device like that is far from needed on 50 MHz also since the MGF1302 is designed for a much higher frequency it actually might not be a good deal to use it on 50 MHz. I would stay away from GaSFet´s and Dual Gate MosFet´s on 50 MHz, not needed. A 2N5109 might be a good deal. / de SM2EKM Bob Tellefsen wrote: Don't think I've seen that kind of model number before, Jack. What is it and who makes it? Thanks and 73 Bob N6WG - Original Message - From: Jack Colson [EMAIL PROTECTED] To: Jack Smith [EMAIL PROTECTED]; [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Wednesday, July 30, 2008 4:37 PM Subject: Re: [Elecraft] Re: K3 6m pre-amp I personally would use a MGF-1302. 73 Jack, W3TMZ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Beta 2.22 and Noise Reduction problem
Just finished installing the 2.22 beta. Took the rig back to the shack and ran through the various controls I use the most often. No problem with the Noise Blanker but the Noise Reduction does not work now. I went through every menu I could find, and KNB3 is ON and seems to work ok. I couldn't find any menu choices for the NR function though. Whether I tap or hold the NR button, all I get is N/A. Have I missed something or is there a bug in this beta? Thanks and 73 Bob N6WG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Beta 2.22 and Noise Reduction problem
Hi Don As usual, it turned out to be very simple. Just neglected to check the AGC ON. Once I changed it, all was well. Thanks and 73 Bob N6WG - Original Message - From: Don Wilhelm [EMAIL PROTECTED] To: Bob Tellefsen [EMAIL PROTECTED] Cc: Reflector Elecraft elecraft@mailman.qth.net Sent: Thursday, July 31, 2008 5:07 PM Subject: Re: [Elecraft] Beta 2.22 and Noise Reduction problem Bob, Are you possibly in DATA or FM mode? The NR function is not available in those modes, hence the N/A display. I have 2.22 loaded and have no similar problem with the NR in CW, SSB or AM modes. 73, Don W3FPR. Bob Tellefsen wrote: Just finished installing the 2.22 beta. Took the rig back to the shack and ran through the various controls I use the most often. No problem with the Noise Blanker but the Noise Reduction does not work now. I went through every menu I could find, and KNB3 is ON and seems to work ok. I couldn't find any menu choices for the NR function though. Whether I tap or hold the NR button, all I get is N/A. Have I missed something or is there a bug in this beta? Thanks and 73 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: K3 6m pre-amp
Hi John I've been looking at this circuit for some time. I have a number of J310s, but no U310s. Do you know whether they are the same animal, just in different casings? 73, Bob N6WG - Original Message - From: John Klewer [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Wednesday, July 30, 2008 10:56 AM Subject: [Elecraft] Re: K3 6m pre-amp Note that I installed this preamplifier in the RX IN/OUT path on the K3 rear panel To enhance the 6 meter performance of my K3 I built the U310 preamplifier as described on N6CA's website: http://www.ham-radio.com/n6ca/50MHz/50appnotes/U310.html Tuned up on an HP8970A noise figure meter it gives 11.2 dB gain and NF=1.3 dB. The receiver's performance on weak signals was significantly improved. I already had the parts but cost should not exceed $30.00 to duplicate this preamphard to beat. I have not done measurements on the radio/preamp combination to determine any negative effect on the receiver performance but the K3, which always performed well in the presence of strong signals, continues to do so. John, N6AX K3 #567 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: K3 6m pre-amp
Don't think I've seen that kind of model number before, Jack. What is it and who makes it? Thanks and 73 Bob N6WG - Original Message - From: Jack Colson [EMAIL PROTECTED] To: Jack Smith [EMAIL PROTECTED]; [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Wednesday, July 30, 2008 4:37 PM Subject: Re: [Elecraft] Re: K3 6m pre-amp I personally would use a MGF-1302. 73 Jack, W3TMZ - Original Message - From: Jack Smith [EMAIL PROTECTED] To: [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Wednesday, July 30, 2008 6:48 PM Subject: Re: [Elecraft] Re: K3 6m pre-amp Don: The U310's are not too easy to find these days. Vishay seems to be the most common (only?) new production supplier and the one-off price is about $14 from Mouser or Arrow. Digikey, Allied and Newark only stock the SOT23 plastic surface mount version. TO-92 plastic case parts, the J310, are around 25 cents each. The U310 and J310 are supposed to have the same die, so differences should be attributed to the case, but who knows what goes inside the package these days, particularly if it is from China. If I were building a pre-amp based upon a U310, I would start with a J310 and get it thoroughly debugged before experimenting with U310's at $14 a pop. It's something like the 40673 dual gate FET - once ubiquitous and now difficult to find and expensive when found. Jack K8ZOA Don Wilhelm wrote: Bob, While I cannot speak from my own measurements, but in EMRFD, Wes Hayward recommends the U310s for VHF/UHF rather than the J310. The case of the U310 is connected to the gate, and when used in a grounded gate configuration, the case can be mounted (upside down) into a hole in the PC board, and I believe that alone should provide better input to output isolation. The Vishay data sheet indicates a slightly lower noise figure for the U310. I would suggest that you try the J310s. If you find them lacking, it should be easy to change to U310s, I would guess that at 50 MHz, it may be a 'toss-up' decision. 73, Don W3FPR Bob Tellefsen wrote: Hi John I've been looking at this circuit for some time. I have a number of J310s, but no U310s. Do you know whether they are the same animal, just in different casings? 73, Bob N6WG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.138 / Virus Database: 270.5.7/1581 - Release Date: 7/30/2008 6:56 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: General Coverage Receive Filter
Ian Besides casual listening around the HF bands, it turns the K3 into another piece of test equipment in the shack. The K3 calibration is pretty darn good, so you can measure the frequency of a signal and be very close to its absolute frequency. Or just listen to an oscillator that operates outside the ham bands, such as those in a homebrew RX or TX. 73, Bob N6WG - Original Message - From: Iain MacDonnell - K6IAM [EMAIL PROTECTED] To: Ron D'Eau Claire [EMAIL PROTECTED] Cc: 'Joe Word' [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Monday, July 28, 2008 10:46 AM Subject: Re: [Elecraft] K3: General Coverage Receive Filter I'd been meaning to ask for a while; what is the motivation for those of you who have ordered the general coverage receiver option? i.e. what makes it worth the extra $129 ?? ~Iain Ron D'Eau Claire wrote on 07/28/08 07:35: Joe asked: What is the General Coverage Receive Filter, how does it work? If it is just another roofing filters, why not just use the 6.0 filter? --- It's not, Joe. The KBPF3 provides additional receiver input bandpass filters. The input bandpass filters are L/C filters that are switched automatically according to the frequency band selected to protect the receiver from strong out-of-band signals hundreds of kilohertz or even a few megahertz away from the desired signal. The first I.F. roofing filters follow later in the signal path to provide selectivity within a few kHz or a few hundred Hz of the desired signal. The basic K3 is equipped with input filters covering the 160-6 meter Ham bands. These filters also allow reception near the Ham bands but, as you tune farther from a Ham band, the sensitivity will drop off as you move beyond the edge of the filter bandpass. This is most apparent when trying to listen to AM broadcast band stations below 1,000 kHz without the KBPF3, but a significant loss of sensitivity occurs whenever the basic K3 is tuned far from a Ham band. The KBPF3 provides additional input filters that are switched in automatically to cover the out-of-Ham-band frequencies between 500 kHz and 30 MHz. Ron AC7AC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Momentary breaks when tuning down
Mike Practice using the direct frequency entry. It is fast and gets you right on frequency. Good luck and 73 Bob N6Wg - Original Message - From: AD6XY [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, July 21, 2008 11:33 PM Subject: Re: [Elecraft] K3 Momentary breaks when tuning down I have noted something similar - say you set to fine tuning so you have a frequency like 14.28. Then set to faster tuning rate. Tune down and up. You find you are on 14.28001, there is no way to zero the last digit again. Not that it matters but it is odd - perhaps a rounding error. I don't know if it is just me but I find the tuning rate, even when set to fast and/or using the clarifier to still be far far too slow. I am sure it is fine to tune across 7MHz but tuning from 144.3 to 144.5 (to get from our calling channel to the beacon band) takes forever. Quite often you will reply tol someone on 144.3 and they request to QSY off the calling channel, often by up to 100kHz. I find I am forever pressing the rate button, or for large QSYs setting to FM and back. Otherwise by the time the K3 gets there the other station has gone back to 144.300 wondering where you went. This is of course how I noticed the last digit issue above. Mike David Andrews-3 wrote: I'm aware when tuning down a band on receive that there is a short break in the audio every so often. This doesn't seem to happen when tuning up the band. Can anyone explain what is happening? David G4CWB ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- View this message in context: http://n2.nabble.com/K3-Momentary-breaks-when-tuning-down-tp574200p576213.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] 6m preamp description??
Yesterday, I hooked up my old Ameco PT-2 preamp to the K3, and even that old dog made an improvement. There is a much more pronounced change in the noise level when connecting or removing the antenna now. Hope it helps in the CQ VHF contest this weekend. 73, Bob N6WG - Original Message - From: Stewart Baker [EMAIL PROTECTED] To: Jim Brown [EMAIL PROTECTED]; Reflector Elecraft elecraft@mailman.qth.net Sent: Saturday, July 19, 2008 1:46 AM Subject: Re: [Elecraft] 6m preamp description?? I brought a 6m preamp kit from Down East Microwave. It cost only slightly more than if I had sourced the components in the UK. The end result means that now I can hear the K3 noise level increase when I add an antenna. 73 Stewart G3RXQ On Fri, 18 Jul 2008 10:33:21 -0700, Jim Brown wrote: On Fri, 18 Jul 2008 09:32:42 -0700, Bob Tellefsen wrote: I've heard that there is a prototype 6m external preamp being tested. I bought an ARR preamp several years ago when I was living in Chicago. I patched it into the external antenna insert loop and it works well. 73, Jim K9YC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] 6m preamp description??
Thanks for the info, Tom. 73, Bob N6WG - Original Message - From: K8TB [EMAIL PROTECTED] To: 'Elecraft Reflector' elecraft@mailman.qth.net Sent: Saturday, July 19, 2008 7:42 AM Subject: Re: [Elecraft] 6m preamp description?? I bought an ARR peamp for six. It has a bit too much gain, so I have a BNC 10 Db pad after it. You can get these attenuators on Ebay for $ 10 or so. I have the ARR preamp supported by a double male BNC barrel coming off the back of the K3 KXV3 panel. The attenuator/pad sits on the back of the preamp with a 12 bnc jumper back to the KXV3. Power comes from that handy RCA connector Elecraft put on the K3. Now the rig is real solid on six. And the even better news is that my K3 # 2 just arrived yesterday. This one will replace a TS-2000 at my six meter remote base. Currently, it's raining outside. Nuts, I can't do any yard work! tom bosscher K8TB ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] 6m preamp description??
I've heard that there is a prototype 6m external preamp being tested. If so, can anyone give us a thumbnail description of this little unit? And how well does it seem to work? Thanks and 73 Bob N6WG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] 6m preamp description??
Thanks Jim I've heard good things about their products. Glad yours is working well. I'm going to try patching in my Ameco PT-2 preamp, just as an experiment. I'll probably go ahead and build my little J310 preamp though. 73, Bob N6WG - Original Message - From: Jim Brown [EMAIL PROTECTED] To: Reflector Elecraft elecraft@mailman.qth.net Sent: Friday, July 18, 2008 10:33 AM Subject: Re: [Elecraft] 6m preamp description?? On Fri, 18 Jul 2008 09:32:42 -0700, Bob Tellefsen wrote: I've heard that there is a prototype 6m external preamp being tested. I bought an ARR preamp several years ago when I was living in Chicago. I patched it into the external antenna insert loop and it works well. 73, Jim K9YC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Not receiving posted messages
You're 5NN here, Thomas. 73, Bob N6WG - Original Message - From: Thomas Kuehl [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Thursday, July 10, 2008 9:35 AM Subject: [Elecraft] Not receiving posted messages Hi, Since subscribing to the list about a week ago I haven't received any of the messages that have been posted. I know this because I see that many have been listed in the archive. I am able to post a message and receive responses directly addressed to me, but that is the extent of it. My Yahoo mail settings have been checked to make sure I am not blocking the list, and I've also checked my Elecraft list settings. All of the other lists that I am subscribed to are working fine. Anyone have an idea what might be going on? Please reply direct so I can see the response. Thanks, Thomas - AC7A ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Two amplifiers 1 key line
Lee Something like the KRC2 band decoder could be used to steer the PTT line as you change bands. 73, Bob N6WG - Original Message - From: Lee (WW2DX) [EMAIL PROTECTED] To: Elecraft Reflector elecraft@mailman.qth.net Sent: Thursday, July 03, 2008 10:21 AM Subject: [Elecraft] K3 Two amplifiers 1 key line I have a HF amp on ANT1 and (soon to be) 6M amp on ANT2. ANT2 is dedicated 6M antenna. Has anyone come up with a way to PTT each amp when on desired band? Is it possible to just hook both AMPS to the same PTT key line so both amps Key at the same time but the RF path would then take over? Thanks, Lee WW2DX K3 #464 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 #811 Locked Up
Guess it's my turn to have a problem. Rig here is K3 #811. Options are KAT3, KXV3, KBPF3, 400 Hz 8 pole xfil. My problem is that at turn-on I have every icon on the LCD display on simultaneously, almost like an LCD display test. Rig doesn't respond to any commands. Tried connecting to the K3 Utility, and it says, Cannot communicate with K3. I've checked both serial ports, so that doesn't appear to be the problem. I've tried recycling power several times with no luck. What can I do to break it out of this? I've queried Tom Hammond, N0SS, but being the weekend, don't know how long it will be before he can reply. So thought I'd query the E'craft brain trust :-) Thanks and 73 Bob N6WG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 #811 Locked Up
Thanks Bill. I'll give these a try. 73, Bob N6WG - Original Message - From: Bill W4ZV [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Saturday, June 21, 2008 10:52 AM Subject: Re: [Elecraft] K3 #811 Locked Up Robert Tellefsen wrote: Guess it's my turn to have a problem. Rig here is K3 #811. Options are KAT3, KXV3, KBPF3, 400 Hz 8 pole xfil. My problem is that at turn-on I have every icon on the LCD display on simultaneously, almost like an LCD display test. Rig doesn't respond to any commands. Tried connecting to the K3 Utility, and it says, Cannot communicate with K3. I've checked both serial ports, so that doesn't appear to be the problem. I've tried recycling power several times with no luck. What can I do to break it out of this? Try rebooting the computer with the K3 off. Then power on the K3. If that doesn't work, try EE INIT on page 55 of the manual. Here are a couple of additional points I discovered when I did this once (submitted to Elecraft but not sure it's in the current docs): ** 1. 4th bullet from bottom of p 55 When EE INIT completes... I found it necessary to PWR OFF and ON my K3 to continue the process. 2. 3rd bullet from bottom If you have a computer... My K3 Utility had to be closed and reopened to remove an error on the Config page (something like colon missing at bottom of Utility Config window) which was preventing me from checking Filter Configuration to see if Restore got all the settings correct (...it did). ** I also hope you've recently done a Config Save...otherwise you may need to go through all the Cal procedures in the manual. 73, Bill -- View this message in context: http://www.nabble.com/K3--811-Locked-Up-tp18046875p18047105.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] new K3 owner (soon I hope)
Hi Gary Mine came with software/firmware already installed. However, they recommend you download after testing to ensure you have the latest. Worked fine without the download, but always nice to have the latest and greatest. Good luck and 73 Bob N6WG The Little Station with Attitude - Original Message - From: Gary Nichols [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Thursday, June 19, 2008 8:19 AM Subject: [Elecraft] new K3 owner (soon I hope) I ordered my new K3 at Dayton which is scheduled for delivery in Sept. My question to the group is: Will the radio come with some version of software or firmware installed or be dumb as a box of rocks just out of the box and require some version of downloading before it will work at all. Any heads up for when the radio arrives would be appreciated. TIA, de gary, kd9sv ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: TX off frequency
Hi Simon Don't have the article in front of me, but if it says what I think it does, we used that technique back in the 60's when I ran a Heathkit SB100 transceiver. Worked a lot of DX with it, and was nearly always spot on their frequency. Worked really well. 73, Bob N6WG - Original Message - From: Simon Brown (HB9DRV) [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Saturday, June 07, 2008 2:52 PM Subject: Re: [Elecraft] K3: TX off frequency The harmonics of the voice, there was an interesting QEX article using this as the basis of code for auto-tuning SSB signals. January 1999, Tune SSB Automatically by Robert Dick Simon Brown, HB9DRV -- From: G4ILO [EMAIL PROTECTED] How could he tell? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: Noise Reduction (NR) in FM Mode
Hi John When I worked for Motorola, both their and GE's top of the line two-way FM mobile radios did include noise blankers for the mobile environment. They worked quite well for their intended use. 73, Bob N6WG - Original Message - From: WA6L [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Thursday, June 05, 2008 7:34 AM Subject: [Elecraft] K3: Noise Reduction (NR) in FM Mode Yesterday I discovered by accident (or stupidity) that if you have Noise Reduction engaged and you go to FM mode, you do not receive any intelligible signals. You can tell that there is a signal, but you cannot make it out. I realize that there is no earthy reason to use NR in FM. But, if you have NR engaged on another mode and go to FM, you will be sorry. So, perhaps on the we will get to it someday list there could be a firmware change to disallow noise reduction in the FM mode? It wouldn't hurt . . . 73, John, WA6L -- View this message in context: http://www.nabble.com/K3%3A--Noise-Reduction-%28NR%29-in-FM-Mode-tp17671258p17671258.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: Noise Reduction (NR) in FM Mode
That could be, Ron. I remember when GE had it in their radio, and we didn't, it soon showed up so we could compete in bids. I imagine the bid process drove that more than any actual need :-) 73, Bob N6WG - Original Message - From: Ron D'Eau Claire [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Thursday, June 05, 2008 8:12 PM Subject: RE: [Elecraft] K3: Noise Reduction (NR) in FM Mode ??? I worked on FM gear in the land mobile business as a service rep and salesman and we *never* used a noise blanker. A limiting I.F. amplifier was a basic part of the receiver design since the detector does not respond to amplitude modulation at all, including noise. Noise does not modulate the frequency. Maybe Motorola didn't use good FM detectors. Some simple types of FM detectors respond to both AM and FM. Come to think of it maybe that's why I outsold Motorola in our market area with E.F. Johnson land mobile FM gear G. Ron AC7AC -Original Message- Hi John When I worked for Motorola, both their and GE's top of the line two-way FM mobile radios did include noise blankers for the mobile environment. They worked quite well for their intended use. 73, Bob N6WG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 KAT100 and BL2 questions
Brian What are your expectations for this antenna? Used as a halfwave, say on 40m, its pattern will be that of a regular dipole. However, if you feed it at the end, it becomes an endfed full wave on 20m. It will not have a nice major lobe at right angles to the wire, like the dipole. Instead, it will be a four-leafed clover type of pattern. If you want the pattern on the harmonic band to be at right angles to the wire, then you need to center feed it with the 450 ohm line. That will give you what is called two half waves in phase, with a nice major lobe at right angles to the wire and about 2 dB gain over a simple dipole. Good luck and 73 Bob N6WG The Little Station with Attitude - Original Message - From: Brian Lloyd [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, June 02, 2008 10:54 AM Subject: [Elecraft] K2 KAT100 and BL2 questions Does anyone know if the KAT100 has enough range to match a radiator that is close to (or is) an end-fed 1/2 wave? What I am thinking about is feeding a dipole at twice its resonant frequency so that it is effectively two end-fed 1/2 wave sections and then feeding with ladder line. Now the ladder line will probably act as a transformer to change the matching equation. (I know it won't change the SWR but the magnitude of the resistance and reactance components will change.) This also brings up a question I asked much earlier but didn't get a good answer to. Will the Elecraft BL2 4:1 balun intended for 300/75 ohm operation still work properly when feeding the equivalent of two end-fed half-wave antennas? If I recall these would represent about an 8000 ohm impedance. I was thinking of locating the balun very near the tuner and using window line to the doublet. I am concerned about losses and arcing (100W) in the balun in that specific instance. -- 73 de Brian, WB6RQN Brian Lloyd - brian HYPHEN wb6rqn AT lloyd DOT com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 KAT100 and BL2 questions
Ok Brian I think I'm getting in step with you. As an example, here I use a 40m dipole, center fed with 450 ohm window line, for 40m, 30m and 20m. I realized from the beginning that the shack end of the feedline would show a wildly varying impedance, depending on the band. I cut the basic feedline to give me a low impedance with little reactance on 40m. Then I add roughly a quarterwave section on 20m to again give me a low impedance feedpoint for my K2. On 30m, I just use the BL2 balun and set the switch for whichever ratio gives the easiest match for the KAT2 tuner. Again, this doesn't answer your question directly, because I chose to dodge the problem. Using the 4:1 balun at a very high impedance point on the feedline would be pretty lossy, although it would make matching easier for the KAT100. In my case, running only 5w, I felt I didn't have any spare watts to waste :-) Good luck and 73 Bob N6WG - Original Message - From: Brian Lloyd [EMAIL PROTECTED] To: Bob Tellefsen [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Monday, June 02, 2008 8:45 PM Subject: Re: [Elecraft] K2 KAT100 and BL2 questions On Jun 2, 2008, at 1:32 PM, Bob Tellefsen wrote: Brian What are your expectations for this antenna? Used as a halfwave, say on 40m, its pattern will be that of a regular dipole. However, if you feed it at the end, it becomes an endfed full wave on 20m. It will not have a nice major lobe at right angles to the wire, like the dipole. Instead, it will be a four-leafed clover type of pattern. Yes, I am aware of the various patterns that occur with different lengths of radiator. That wasn't the question. The questions were (restated for clarity): 1. What is the matching range of the KAT100, i.e. will it match an antenna fed at a voltage node (multiple of a 1/2 wave) rather than a current node (odd multiple of a 1/4 wave)? Yes, I know that the ability to achieve a conjugate match depends on the capacitance and inductance range of the tuner. Also this affects the range of the real component (resistance) that can be matched and what frequency you are trying to match it on. 2. Does the BL2 have a problem when looking at a really high impedance, i.e. when center feeding a full-wave doublet? And yes, I am aware that I really wouldn't want to feed the balun with coax from the tuner but rather should put the balun as close to the tuner as possible and then run a low-loss balanced line from the balun to the doublet and that the feedline will act as a transformer to change the impedance (resistance AND reactance) as seen by the balun and, therefore, the tuner. I guess the real question is whether I want to get a KAT100 and a BL2 or just stick with my SGC-231. The nice thing about the KAT100 is that it doesn't draw power unless it is tuning. My SGC-231 draws power all the time to hold in the relays. That sucks up more battery. Also it is physically bigger. Looking at the schematics for both I can see that the SGC-231 has a greater range of C and L than the KAT100 does but maybe the KAT100 is enough, especially when ganged up with the BL2 to provide a 4:1 impedance ration to start with. I know the theory but was looking for a quick answer from the field of people here who have more experience with this than I do. If you want the pattern on the harmonic band to be at right angles to the wire, then you need to center feed it with the 450 ohm line. That will give you what is called two half waves in phase, with a nice major lobe at right angles to the wire and about 2 dB gain over a simple dipole. Right. I was aware of that. Right now I am primarily interested in what the limitations of the KAT100 and BL2 are. But I appreciate where you are going with this. You are thinking along the same lines I am but I was still back at the basic mechanics of matching using the KAT100 and then using the balun to feed the balanced line irrespective of the radiation pattern. And, yes, end feeding a 1-wave wire or greater gets you four major lobes. OTOH, take four of those and put them into a rhombus ... :-) -- 73 de Brian, WB6RQN Brian Lloyd - brian HYPHEN wb6rqn AT lloyd DOT com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Need for compressor
Intriguing idea, Lyle. Could you expand on it a bit? 73, Bob N6WG - Original Message - From: Lyle Johnson [EMAIL PROTECTED] To: Ian White GM3SEK [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Thursday, May 29, 2008 7:09 AM Subject: Re: [Elecraft] K3 Need for compressor Hello Ian! ... Any transmitter with effective compression will also benefit from a noise gate or some other kind of nonlinear threshold, to reduce the noise background when there's no actual speech. This would be something like VOX, but with a different configurable threshold and hold/release dynamics. To obtain full value from the K3's highly effective compressor, could a noise gate be added to 'Lyle's List', please? Instead of a Noise Gate with two or three variables, I've implemented an *experimental* Downward Expander with a single variable (threshold). It certainly kills the background noise here! We're listening... Lyle KK7P PS - Not sure when it'll be in the release code. Higher priority items in the queue at the moment. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] SV: Getting Ready For The 2nd RX
Now I'm curious. When I installed my 400 Hz filter, it had no offset info on it. Is this normal? 73, Bob N6WG K3 #811 - Original Message - From: Gary Hembree [EMAIL PROTECTED] To: elecraft elecraft@mailman.qth.net Sent: Wednesday, May 28, 2008 10:52 AM Subject: Re: [Elecraft] SV: Getting Ready For The 2nd RX On Wed, May 28, 2008 at 11:49 AM, Bill Tippett btippett at alum.mit.edu wrote: Elecraft will eventually publish some instructions regarding 5-pole filters for diversity, but my understanding is that the peak variation between 500 Hz filters is a maximum of 50 Hz. My guess is that they'll simply tell us to split the difference on the 500s and not worry about it. If the 200 Hz has total variation of 50 Hz, then it might require more careful matching (since 50/210 is a significant percentage of total BW), but I've not seen any variation numbers on the 200 yet. Bill, The variation in filter offsets must be larger than you think. My KFL3A-500 has an offset of -0.75 kHz, which is 90-100 Hz higher than the values cited by Orin. The offset of my KFL3A-200 is -0.95 kHz, which oddly enough matches the offset of my KFL3A-2.7K, not that it matters. Thanks for the heads up on filter matching for diversity receiving. 73, Gary, N7IR ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 - 50 Hz Shift
Yes, my experience also. 50 Hz steps are too much at the narrower DSP filter settings. 10 Hz would be good and BW less than 200 Hz. 73, Bob N6WG - Original Message - From: Roland Guidry [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Tuesday, May 27, 2008 4:30 AM Subject: [Elecraft] K3 - 50 Hz Shift Working the WPX contest this weekend, I tried using the Shift when the DSP filter was as narrow as 50-100 Hz for some very weak contacts due to QRM. K3 performed beautifully on CW I might add, but I think the shift adjustment in 50 Hz increments is too large. I would often lose the station I was trying to work. I would have perferred something smaller even as low as 10 Hz. Is it just me, or is this something that can be menu adjusted in the future. I think this would only be needed in CW/Digital modes. Roland NA5Q K3 - Serial No. 845 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3s in WPX M/S - WOW!
Hi Vic You didn't say, but I assume this is under the most recent firmware download? 73, Bob N6WG - Original Message - From: Vic K2VCO [EMAIL PROTECTED] To: Bob Evans [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Tuesday, May 27, 2008 9:33 AM Subject: Re: [Elecraft] K3s in WPX M/S - WOW! Bob Evans wrote: I never thought I'd be so happy with a 150 Hz filter bandwidth. Honestly, the 100 Hz and 50 Hz bandwidths were useless though as the signal level dropped significantly. It seemed much better a few firmware versions ago, but 150 Hz worked fine for us...I was just getting greedy by trying to use the 100 and 50 Hz BW. I have just found out that there is a bug that causes a gain reduction just for these two bandwidths if they are set for FIR filters and not IIR. You can fix it now by switching IIR ON, and when Elecraft fixes the bug you can choose either IIR or FIR for these filters as you prefer. To switch between IIR and FIR, tap '7' on the keypad when you're in any filter setup menu entry (e.g., CONFIG:FLx BW). You want it to say IIR ON. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 SSB Watery Audio Distortion
Hello John If you have another ssb receiver available that can tune to the K2 IF frequency, try listening to ssb directly out of the KSB2 and see if it is watery there. If not, the problem lies elsewhere in the rig. If it is watery, which I doubt it will be, since you say you get the same result with two different KSB2 modules, then the problem may be in the KSB2s. Also check the stability of the oscillators by listening to them. Is there any warble at all in their frequencies? Good luck and 73 Bob N6WG - Original Message - From: John Huffman [EMAIL PROTECTED] To: Elecraft List elecraft@mailman.qth.net Sent: Friday, May 16, 2008 7:12 AM Subject: [Elecraft] K2 SSB Watery Audio Distortion There has always been some watery distortion on my SSB signal from my K2/100. It is there with or without the KPA100. It is there with three different mikes. It is there with two different KSB2 modules. It is there on both upper and lower sideband. The CW signal sounds pretty good, no obvious problem. The SSB distortion is not real bad, but noticeable. The ALC is high and has a hard time settling down on 80M. It settles to two bars but may start at 6 or 7 bars. The ALC on 10M is just one bar. The watery distortion is on all bands 80M thru 10M and into a dummy load. I assume the problem is not KPA100, KSB2, mikes, or RF getting in. The problem has been there for years (sn 3194) but has worked it's way up the fix list. At this point I'm not sure where to start. Suggestions welcomed! 73 de K1ESE John ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Ke: Programming SWT and SWH options
The programmers' reference says that the SWH and SWT functions are not implemented yet. However, I've been told that preceding such a command with K3; should make them work. It hasn't for me, so I'm asking if anyone else has attempted to get these functions to program yet? Were you successful? If so, what did you do to make it work? Thanks and 73 Bob N6WG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Bal[un] (was: Buddipole vs. tuner and wire)
You're right, Dave. I have three of them. Very handy little beasts. 73, Bob N6WG - Original Message - From: David Yarnes [EMAIL PROTECTED] To: Robert Tellefsen [EMAIL PROTECTED]; Brian Lloyd [EMAIL PROTECTED]; elecraft Reflector elecraft@mailman.qth.net Sent: Tuesday, May 13, 2008 2:45 PM Subject: Re: [Elecraft] Bal[un] (was: Buddipole vs. tuner and wire) The BL2 (switchable balun) will handle 250 watts! That should be enough. Dave W7AQK - Original Message - From: Robert Tellefsen [EMAIL PROTECTED] To: Brian Lloyd [EMAIL PROTECTED]; elecraft Reflector elecraft@mailman.qth.net Sent: Tuesday, May 13, 2008 9:54 AM Subject: Re: [Elecraft] Bal[un] (was: Buddipole vs. tuner and wire) Hi Brian I don't recall if you mentioned what power level you would be using with your K2. If it is running barefoot, without the 100w PA, you could use one of the Elecraft switchable baluns. They switch between 1:1 and 4:1 ratios, giving you a good chance to match most balanced feeds. Even though the rig end of the line may be reactive, due to impedance mismatches along the line, the switchable balun can be used to reduce the amount of mismatch the ATU then has to to cope with. This makes a simple dipole with tuned feeders a nice multiband antenna. On a given band, try both switch positions and see which one helps the ATU make the best match. Good luck and 73 Bob N6WG - Original Message - From: Brian Lloyd [EMAIL PROTECTED] To: elecraft Reflector elecraft@mailman.qth.net Sent: Tuesday, May 13, 2008 8:37 AM Subject: [Elecraft] Bal[un] (was: Buddipole vs. tuner and wire) OK, I am convinced - keep the tuner and the wire. So, that brings up a second question: balanced vs. unbalanced. Wire antennas that do not require a counterpoise are usually loops or dipoles, i.e. inherently balanced even if not resonant. Most tuners offer an unbalanced output. SGC says, just connect up the antenna. Seems to me that a balun would improve things and keep RF off the coax and power leads to the tuner. But how well do baluns handle huge mismatch? Just off the top of my head, it seems to me that the tuner at the top of a pole with two legs sloped down, i.e. inverted-V, would make a pretty good omni all-band antenna. More thinking aloud. Brian Lloyd Granite Bay Montessori School 9330 Sierra College Bl brian AT gbmontessori DOT com Roseville, CA 95661 +1.916.367.2131 (voice)+1.791.912.8170 (fax) PGP key ID: 12095C52A32A1B6C PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Buddistick or Buddipole?
Hi Fred Any antenna heavily loaded with coils will show a narrow bandwidth. In effect, the coils and the capacitance of the antenna elements across them form a tuned circuit. The higher the Q of the tuned circuit (meaning the lower the coil losses) the narrower the bandwidth, but the higher the efficiency. If you find a loaded antenna with a large bandwidth, it is by definition much less efficient due to the inherent losses. There really is no free lunch. Sometimes you can fudge a bit by tuning such an antenna to the center of a band, and using an autotuner like the Elecraft T1 at the feedpoint. Then, once you get away from the resonant frequency of the antenna, it acts as if it were a simple nonresonant centerfed piece of wire and the tuner will give you as good a match as it can. Good luck and 73 Bob N6WG - Original Message - From: Fred (FL) [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Friday, April 06, 2007 8:42 AM Subject: [Elecraft] Buddistick or Buddipole? I've been considering the Buddi antenna, for a while now. It seems to be built well. One thing I've not been able to establish - is how much HF bandwidth does the antenna exhibit - once one sets the clips on those 2 coils, and gets resonance? I just wonder if a constant readjusting is necessary with this antenna, when we move up and down the HF bands? 20M CW then 20M SSB ... In other words - if antenna was all set up outside, would a HF user be required to continually adjust either the clips or the whips - when an operator goes from SSB to CW portions of the band, etc.? I tried some years back, to make a dipole out of Hustler mobile elements, with some adjustable whips - but never was able to get it to resonate very reliably. Those were in my no-tuner IC-730 days. Those are my questions regarding the Buddi line of dipoles and verticals, with coils and clips. Fred N3CSY, FL Very seriously considering one. Fred, N3CSY FL The fish are biting. Get more visitors on your site using Yahoo! Search Marketing. http://searchmarketing.yahoo.com/arp/sponsoredsearch_v2.php ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] DSP and CW?
Chris There are two actions I would recommend. First is a rotatable receiving loop to help reduce local noise. The best way to reduce noise is to prevent it from entering the receiver. It can be tuned or untuned. If tuned, it will be more sensitive, but limited to one band. If untuned, it will be a bit less sensitive, but you could also use it on 80m. Second is adding the KDSP2. It will lower your apparent noise by two means. The first is the narrower audio filtering which lets less noise pass. The second is the DSP noise reduction algorithm which will improve your signal to noise ratio in recovered audio. Use both of these together, and you should see a distinct improvement in what you can hear. Good luck and 73 Bob N6WG - Original Message - From: Chris Kantarjiev [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Thursday, March 29, 2007 6:24 AM Subject: [Elecraft] DSP and CW? Does this combination make sense? I operate 100% CW. These days, I seem to be chasing a lot of very weak signals with questionable readability. My vertical isn't the quietest of antennas (they never are) and my neighborhood has a fair amount of QRM on 40m during real people hours. For example, this morning I was trying to get KH2/JR4GPA. Copying his sign was very tough, but I finally got it and confirmed it. I called a couple of times but realized that I wouldn't recognize my call even if he returned it! Just on the egde of ESP. So ... would AF or DSP help me in this situation? The noise blanker doesn't seem to do much good for the noise sources my neighbors provide. Thanks! 73 de chris K6DBG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] DSP and CW?
One additional thought. It is not unusual to use an external AF filter with headphones. I have a homebrew passive filter that I put in line occasionally. It is not needed so much for additional selectivity as to reduce higher pitched white noise that comes through along with signal. You can buy these filters or just cobble your own out of junkbox parts. 73, Bob N6WG - Original Message - From: Tom Hammond [EMAIL PROTECTED] To: Tom Zeltwanger [EMAIL PROTECTED]; Stephen W. Kercel [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Thursday, March 29, 2007 8:19 AM Subject: Re: [Elecraft] DSP and CW? Tom: Can you still use the plain audio CW filters once you install the DSP? This DSP is extremely flexible and I can't image that each person couldn't get some settings that will be useful to them, although it may take some time. You can have only one (1) audio filter installed at a time, KAF2 or KDSP2, but not both, sorry. 73, Tom N0SS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] DSP and CW?
Chris For 40m, a rotatable loop could be as simple as a diamond shape with maybe 3 ft sides. All loops are not made out of rigid coax in a 10 ft diameter circle. Also, multi-turn looops allow for a smaller size while still giving good performance. A 3 ft loop wouldn't be very large, and ,standing vertically, might still be below the sight line of a fence between you and your neighbors. Loops don't have to be high in the air to work. There is a ton of material on receiving loops on the web. Look around a bit and find one that seems to fit your situation. It's a ridiculously cheap experiment. Give it a try and let us know how it works for you. Good luck and 73 Bob N6WG - Original Message - From: Chris Kantarjiev [EMAIL PROTECTED] To: [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Thursday, March 29, 2007 9:54 AM Subject: Re: [Elecraft] DSP and CW? As it has been mentioned, perhaps the best solution to your noise situation is to use a separate receiving antenna such as a rotating loop (assuming something like a beverage is not feasible). Yes, but. I have a vertical because I am antenna limited on my sub-1/8 acre suburban Palo Alto lot :-) No room for a beverage, and I think I'd be lynched if I tried to put up a rotatable loop! Everything's a compromise... 73, chris ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] RS 22-507 Power Supply
Gus I remember reading somewhere that switching supplies require some minimum load to be stable. You could try putting a small resistive load, maybe 50 mA, on the P/S and see if it calms down. Good luck and 73 Bob N6WG - Original Message - From: Augie Hansen [EMAIL PROTECTED] To: Elecraft Reflector Elecraft@mailman.qth.net Sent: Tuesday, March 27, 2007 9:04 AM Subject: [Elecraft] RS 22-507 Power Supply I have been using a Radio Shack switching power supply (part number RS 22-507), which is a 13.8 volt, 3 amp supply both to power my K2 and to power a test setup for a microcontroller project. The output is clean and stable when the unit is powered on. However, the supply is exhibiting a strange behavior when the unit is turned off. It puts out a short full-voltage pulse (~0.2 second) at intervals of several minutes. These pulses occur whether the supply is connected to a load or not. It is not related to anything on the AC input side. The same behavior was seen at a temporary lab I set up in Rhode Island and here in my lab in Denver. I wonder if any of you have had a similar experience with this model or any other switching supply. If so, please let me know. 73, Gus Hansen KB0YH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 - How good on SSB?
Hi Fred I run my K2 at 5w all the time as a QRP station. I enter many of the major contests and have a great time. You do need to be a bit thick-skinned, though, as you will often be walked on by higher power stations that just don't hear you. Or they call the station you are calling at the same time, and just outshout your signal. But a little persistence pays off and you can get your QSO eventually. Like most everything else we do in radio, the antenna will have a bigger effect on your success than the rig. If you have a decent antenna, you can have a ball. Good luck and 73 Bob N6WG - Original Message - From: Fred (FL) [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Friday, March 16, 2007 7:35 AM Subject: [Elecraft] K2 - How good on SSB? Thinking about building my 2nd K2. First # 54xx, was a very sucessful build. Does anyone have thoughts on how well the K2, operates, by itself, as a SSB HF rig? It would seem 15W is kind of pushing it for a suitable signal - but just wondered if any successful K2 SSB ops are around. And I've always had this belief that 15W is not enough to drive many or any amps? Thanks, Fred, N3CSY No need to miss a message. Get email on-the-go with Yahoo! Mail for Mobile. Get started. http://mobile.yahoo.com/mail ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Question from a newbie
Pete It all depends on the type of noise you experience. For some kinds of noise, the KNB2 works like magic. For other kinds, it has no effect at all. For some odd noises, it sort of works. Ultimately, it's a crap shoot. It is an inexpensive option, and I would add it as insurance for those times when it does work. I have it in both my K2s. 73, Bob N6WG - Original Message - From: B Peter Treml [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Saturday, March 10, 2007 4:44 PM Subject: [Elecraft] Question from a newbie I have come into possession of a K2/100 with the DSP filter (KDSP2) but does not have the noise blanker (KNB2). Question: (1) Is the noise blanker a worthwhile purchase? Any thoughts would be appreciated. 73, Pete-K8PT B. Peter Treml [EMAIL PROTECTED] 725 W. Magnetic St. www.qrz.com/k8pt Marquette, Mi. 49855 USA ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] steel shed and balanced feed
David You didn't mention what kind of openings, if any, already exist in the shed walls. Two things you can do. 1. Put a gradual twist in the feedline, say one revolution every six feet or so. This evens out the unbalancing due to the nearness of the metal shed. 2. Where you do find an opening to pass the line through, come in directly at right angles to the metal so that the line is only exposed to the edge of the metal as it passes through. I think I read somewhere that the opening should be about three times the width of the feedline, and the feedline should be centered in it. I live in a house with aluminum siding. In the garage, over my station table, I put a 2 inch diameter hole in the wall and covered it with an outdoor plastic entrance box. It has a hole in the bottom for feed lines to come through, while keeping rain out. Absolutely no problems so far, after five years. Good luck and 73 Bob N6WG The Little Station with Attitude - Original Message - From: David [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, February 19, 2007 10:01 PM Subject: [Elecraft] steel shed and balanced feed Hello All, Here's another question for the antenna gurus. I would like to use a balanced feeder feeder for a multiband dipole. The problem is that my shack is in a steel shed and we all know running a balanced feedline near metal objects is a no-no. So, is there a way of getting a balanced feedline from my antenna to my balanced antenna tuner through steel? Also, my antenna is away from the shed so the feedline would not approach the shed at a perpendicular angle. 73 de David VK5DG K2 S/N 5492 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 Contesting
Obviously, tapping A=B is faster, easier and probably more accurate in the rush of a contest situation. Except when I forgot to tap :-) 73, Bob N6WG The Little Station with Attitude - Original Message - From: Ron D'Eau Claire [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Tuesday, February 20, 2007 1:21 PM Subject: RE: [Elecraft] K2 Contesting That's were I use SPLIT. That lets me tune the receiver using the big knob without changing the transmit frequency. Whenever I need to move my transmit freq, I just tune to where I want it to be and tap A=B. Then I can go on tuning the receiver using the main tuning knob. That's a legacy of operating for decades with separate transmitters and receivers. One finds a clear frequency (or tunes in the station to call), then throws a switch that causes the transmitter to produce a low-level signal and tunes the transmitter VFO until the signal is zero beat with the desired frequency and turns off the low-level signal. Then one is ready to transmit. Obviously, tapping A=B is faster, easier and probably more accurate in the rush of a contest situation. Ron AC7AC -Original Message- On Tuesday 20 February 2007 10:50, J F wrote: RIT - In my entire 33-year ham career I have never felt the need for RIT (and XIT even less). I use it all the time - when people call me they're nearly always off my frequency and outside the narrow filters' passbands. Not everyone has an Elecraft rig and some transceivers have no feature to enable zero beating. Using an external receiver and an external crystal controlled oscillator, I adjusted a variable capacitor in my IC-735 to make zero beating an incoming signal correspond to the CW sidetone, as the K2 does. Unlike the K2, it was open-loop, but better than the unadjusted IC-735. When I obtained my G4ICV licencse in 1979, it was, if not now (?), a requirement that the station should be capable of listening to its own transmissions. Having only one transceiver and unable to monitor its output was a licence violation - not that it was ever enforced. I started out on the HF bands using separates: an Eddystone EA12 (that I still have) and a Yaesu FL101 transmitter. I felt more confident of zero beating with those than the K2. Ian, G4ICV, AB2GR, K2 #4962, LP-100 #278 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Elecraft CW Net Report for February 11th 12th, 2007
Hi Kevin The N7WG Bill? you show is actually me. N0SS miscopied my call when I checked in. I was working on my antennas and tuning across the band when I heard the net, so decided to check in, just for the heck of it :-) Was QRU, so just went on with my antenna work. 73, Bob N6WG The Little Station with Attitude - Original Message - From: Kevin Rock [EMAIL PROTECTED] To: Elecraft elecraft@mailman.qth.net Sent: Sunday, February 11, 2007 7:34 PM Subject: [Elecraft] Elecraft CW Net Report for February 11th 12th, 2007 Good Evening, Two very good nets. I wish I could have worked everyone I heard but some of you were very far down below the noise. I did get TF but there was one very, very weak signal on 40 meters which I simply could not get a letter. However, it appears the hail signs along with calling by areas has broken up the pileups quite nicely. I may simplify even further and try East, Mid, and All to work more rapidly. Tom works East and West and does well. He does have a lot more experience at this though ;) You heard me turn up my speed a few times but I made sure to go right back to call CQ. I wanted to run through Tom's list quickly so I could get back to you all. There was a little QSB on both 20 and 40 meters this evening but both bands were fairly quiet. Made it easier to run the net. On 40 I only got two before I handed off to Tom. I found a few of you had not gotten on the air by the time I passed the net but you were loud to me. For once I worked Fred, K6DGW, direct. Normally he is simply too close. I did get a little of his check in on 20 meters but it was tough copy. On 40 meters he was pretty good. I was also hearing the West Hills in Beaverton because I heard Karl, N7NLU, check in both times. I got a few weather reports but mostly just signal reports this evening. Southern California is having rain tonight much like I am having. Gloomy and chilly all day today. But it is my cleaning day so I don't notice the weather much. I did find a break in the rain to get my load of wood inside. Sam is guarding the fire so it does not go unstoked! The lists = On 14050 kHz at 2256z: N0SS - Tom - MO - K2 - 008 K9DMV - Joe - IL - K2 - 5628 VE3XL - Ric - ON - K1 - 968 K1EV - Bill - CT - K2 - 2152 AB9V - Mike - IN - K2 - 3993 WB3AAL - Ron - PA - K1 - 1011QNI #5! K2HYD - Ray - NC - KX1 - 608 K4GT - Jim - GA - K2 - 2015 K4JPN - Steve - GA - K2 - 1422 QNI #40!!! KH6NO/W7 - Willie - NV - K2 - 1593 QNI #15!! W6ZH - Pete - CA - K1 - 553 K5BGB - Rod - TX - K2 - 1126 N7WG - Bill - CA - ?? K6DGW - Fred - CA - K2 - 4398 W6ZH - Pete - CA - K1 - 553 N7NLU - Karl - OR - K2 - 4227 KE5AKL - Mike - NM - ?? W0RSR - Mike - CO - K2 - 5767 VE6ITA - John - AB - K2 - 5384 ND0V - Greg - CO - K2 - 4411 N6JW - John - CA - K2 - 3290 QNI #45!!! K0NEB - Joe - NE - KX1 - 1493 W1TF - Ty - GA - K1 - 1423 On 7044.5 kHz at 0156z: N0SS - Tom - MO - K2 - 008 KH6NO/W7 - Willie - NV - K2 - 1593 K6PJV - Dale - CA - K2 - 5345 K0NEB - Joe - NE - KX1 - 1493 W0RSR - Mike - CO - K2 - 5767 WD4LST - Pete - FL - K2 - 5813 N7NLU - Karl - OR - K2 - 4227 NK6A - Don - CA - K2 - 1217 W6ZH - Pete - CA - K1 - 553 K4GT - Jim - GA - K2 - 2015 K6DGW - Fred - CA - K2 - 4398 VE6ITA - John - AB - K2 - 5384 AA4NN - Joe - SC - K2 - 3751 This was very close to the record number of check ins. Not bad for the bottom of the solar cycle! I wonder what will happen in two years? By then K1EV will be armchair copy again and I will have to develop new techniques to break the pileups. We may even get a check in from Rupert once Geoff teaches his favorite pheasant how to peck out his callsign ;) Thank you for the support over the years. It is very nice to hear from you all and see what we can do each Sunday evening. Once I knock down the leaning trees I'll be able to hoist my antenna up to a better height. This will help me on 20 meters but I don't think I can find a tree tall enough to make much difference on 40 meters. But the windstorm did clear a large swath of land for a prospective loop antenna. Now if I can convince Karl to drive out in the outback to help me hoist it ;) I do need a couple of fills for rig and serial number but there is always next week and the one after that. If there are any errors please do not hesitate to bring it to my attention and provide the correct data. Until next week stay well, Kevin. KD5ONS (Net Control Station 5th Class) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to:
Re: [Elecraft] IF shift
Hi Ron One of the strengths of the K2 is its single-conversion design. That is, in part, responsible for the extremely good specifications the receiver enjoys. However, i.f. shift such as other rigs often feature require a multiple-conversion design with all the issues that come with additional mixers, oscillators and complexity. Well, I'm not sure this is totally true. Before I got my first K2, I used a Kenwood TS-180S which had a very nice IF shift feature. It was also a single conversion radio, with an IF of about 8.3 MHz. I loaned the manual to Eric and Wayne so they could see how it was done. Sure wish there was a way to implement it in the K2. 73, Bob N6WG The Little Station with Attitude ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Sidetone volume
Hi Sverre The problem with the in-line volume control is that it will reduce the desired signal also. What is really requested here is a way to reduce the sidetone level when using headphones, but leaving it relatively loud when on speaker. That would be a neat programming feat for Wayne, but I don't know if it is really doable. Imagine, two sidetone menu settings, one for speaker audio and one for headphone audio. That would be an ultimate solution. The volume control would then control the desired signal, just as at present. 73, and Happy New year Bob N6WG The Little Station with Attitude - Original Message - From: Sverre Holm [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Wednesday, December 27, 2006 5:30 PM Subject: RE: [Elecraft] Sidetone volume I think you may have hit the nail on the head. I DO have to reduce the volume greatly when using the headphones. From my perusal of the schematic for the K2, it looks like if I changed R36 There isn't really any need to modify resistor values in the K2 to achieve what you want, unless you like to play inside it. It can be done much easier, I think, with an external headphone extension cable with a built-in volume control. A picure explains what I mean better than words: go to http://www.clasohlson.no/Product/Product.aspx?id=383540 and click on the picture (this is the one I got locally in Norway). It will give you continously variable volume control so you don't have to experiment with fixed resistors inside the K2. I am sure RadioShack has something similar and that someone else on the list can help find it. 73 Sverre LA3ZA http://www.qslnet.de/la3za/ -- Jeg bruker gratisversjonen av SPAMfighter for privatbrukere. Den har fjernet 5696 soppelpostmeldinger til na. Betalende brukere har ikke denne meldingen i e-postene sine. Fa tak i SPAMfighter gratis her: http://www.spamfighter.com/pro -- Jeg bruker gratisversjonen av SPAMfighter for privatbrukere. Den har fjernet 5696 soppelpostmeldinger til na. Betalende brukere har ikke denne meldingen i e-postene sine. Fa tak i SPAMfighter gratis her: http://www.spamfighter.com/pro ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KDSP2 Performance
Hello Elliott The KDSP2 and the KNB2 work together. The KNB2 blanker handles pulse noises, while the KDSP2 works more on the white noises you hear. Neither by itself can do the whole job, but together they work just fine. Sometimes one kind of noise will predominate, and some- times the other. Sometimes both occur together. It's really nice to have the combo available to handle whatever you get hit with. Good luck and 73 Bob N6WG - Original Message - From: Elliott Lawrence [EMAIL PROTECTED] To: Elecraft List Elecraft@mailman.qth.net Sent: Friday, August 04, 2006 9:01 AM Subject: [Elecraft] KDSP2 Performance I am thinking of adding the KDSP2 to my trusty K2. I have listened to the .wav files on the Elecraft site and the reduction in ambient noise is impressive. I know that the DSP is designed to handle random/thermal noise but can anyone comment on its actual ability to handle pulse/burst noise such as that generated by power lines etc. Thanks es 73, Elliott WA6TLA ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Alaska - Cruise
Julius Some years ago the xyl and I took that cruise and had a fine time. I took my HT along and was able to talk on a variety of repeaters from W7s in the Puget Sound area to VE7s along the passage to KL7s up in the Alaska panhandle. Hope you have a nice trip. 73, Bob N6WG - Original Message - From: J F [EMAIL PROTECTED] To: Elecraft Discussion List elecraft@mailman.qth.net Sent: Wednesday, August 02, 2006 6:57 AM Subject: [Elecraft] Alaska - Cruise Any Elecraft folks at the port o' calls for the inland passage Alaska cruises? Maybe someone else is doing the September 10 Princess Alaska Cruise (from Seattle)? Cheers, Julius n2wn ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] QRP Power Level?
Hi Kent I went through this a while back. QRP for every contest I could find is spec'd at 5w out, cw or ssb. Good luck and 73 Bob N6WG - Original Message - From: Kent Tannery [EMAIL PROTECTED] To: Elecraft@mailman.qth.net Sent: Friday, July 07, 2006 8:25 AM Subject: [Elecraft] QRP Power Level? Can someone tell me the official definition of QRP Power Level? Is it 5 watts for voice and CW modes? I notice that many contests have a QRP class but they do not define QRP power and I cannot find it on ARRL site. Thanks, Kent KD5SHM K2/100 #4631 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Input vs. output power question
You should request 5w, as the rules call for 5w from the transmitter, not the antenna. Good luck. Hope to hear you and work you. 73, Bob N6WG/qrp - Original Message - From: Bekir Kemal Ataman [EMAIL PROTECTED] To: Elecraft@mailman.qth.net Sent: Thursday, July 06, 2006 1:37 AM Subject: [Elecraft] Input vs. output power question I intend to join the IARU HF contest in the QRP category (i.e. 5 watts output). I have got a RG58 going to my inverted V antenna. The coax is about 45 meters in length (roughly 135 feet). How much power should I request from my K2 to get 5 watts output from the antenna? 73! de TA2RX -- Bekir Kemal Ataman ArchiMac BBS Sysop Webmaster http://www.archimac.org/ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Slow code, etc
Hi Alan Yes, I use a keyboard during contests, but not for sending conversational sentences. In a contest, the exchange is pretty cut and dried, and lends itself to computer use. I have all my exchange info stored under various F-keys within my TR-LOG contest logging program. For regualr conversation, I still use my paddles, as it's too much trouble to bother with the keyboard. 73, Bob N6WG - Original Message - From: [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, June 26, 2006 3:13 PM Subject: [Elecraft] Slow code, etc I remember reading the results of a poll on K3WWP's website that indicated about 1/3 of cw folks used keyboards. I wonder if during contests if you may have a higher percentage on keyboard making it a bit more difficult to slow down (change settings) for the slower operators? I sort of like my CW drawl and probably won't change much in the next few years. But are many of you changing to keyboards? Alan KB7MBI Woodinville, WA ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] What antenna should I build?
Hi JT You mentioned the tree with a 50 ft support point. What do you have to support the ends of your wires? Also, what kind of real estate do you have to spread out over? That would help us a lot in suggesting something. Good luck and 73 Bob N6WG - Original Message - From: JT Croteau [EMAIL PROTECTED] To: QRP-L [EMAIL PROTECTED]; Elecraft elecraft@mailman.qth.net; [EMAIL PROTECTED] Sent: Monday, June 12, 2006 11:25 AM Subject: [Elecraft] What antenna should I build? My only antenna currently here at the home QTH is an HF2V vertical which does great for long haul DX on 40 and 80 but in general is not good for local or regional work. I just launched some monofilament over the only high branch in my yard at 50'. As I only have a single support, I'm looking at some suggestions on constructing a multiband vee wire antenna but have limited materials on hand and even more limited $$ to go out an buy stuff at the moment. Here is what I have in the junk box: 75' of RG213 ~30' of solid conductor commercial ladder line ~800' of 14ga stranded insulated THN wire Assortment of dog-bone style insulators Wide assortment of PVC and nuts/bolts What can I do with the above and the internal tuner in my K1 without going out and buying anything? Ideally, I'd like something that will load well on 80/40/30/20/15 but will settle for 40-15. Anyone have any ideas? Thanks -- JT Croteau - W6FO - Canton, GA | K1 #292 ARS #2,147 | NoGA-QRP | SEDXC | ARRL ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Cap meters AADE version
Go to http://www.aade.com/ and ask if you can buy just the housing. Good luck and 73 Bob N6WG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] DMM Minimum Capacitance Measurements ?
Brian You won't regret buying the LC IIB meter when you can. It is pretty much the defacto standard among QRP builders. Good luck and 73 Bob N6WG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
