Re: [Elecraft] K3: Carry-on Pelican 1510
The weights and dimensions quoted by others should not be relied upon, they change with different airlines and NOTE:- are separately applied by the airport too, irrespective of airline. I speak from experience! In some, only ONE piece of hand luggage allowed eg - Last year in Birmingham UK. I took my K3 to Uk and back in a normal flight case, i.e with pull out handle and wheels on it, The K3 an easy fit, wrapped simply in a towel. (I bought the case for $3 from a charity shop) Weight passed the 7 KG limit OK - after removing my camera from the case at check in. I had had to put it in there at Airport Xray point, as 2 pieces of luggage not allowed. Theres logic for you..! So far I have found a Laptop computer is always an allowed extra, and they never weigh them --- I doubt there is another 100watt rig with built in ATU and all the facilities the K3 Offers at anywhere near the size and mere 9 lb weight of the K3 73 David VK3DBD/G3SCD On Sat, Dec 26, 2009 at 9:52 PM, Gary Hinson g...@isect.com wrote: If I am going to carry the radio onto the plane again, I would get a case that's not so heavy - it only has to be protected from the other passengers cases, and no bouncing around in flight. I used a shiny alumin[i]um flight case meant for transporting camera and electronics gear, from a local shop. It is 18x13x6 externally. The pluck-out high density foam inside is a fairly tight squeeze for the K3, so it is snug and well supported. Small light enough for hand baggage, and strong enough to risk being put in the hold if the airline people at the gate ever insist it can't go on board. Try your local electronics or camera shops. Much cheaper than a Pelican too. I was surprised to have no problems with it at the airport security scanners travelling from ZL to G to 9L and back, though I did have my amateur license in my carry-on backpack just in case they were curious. Also suits the K2 (instead of, not as well as the K3!), leaving space for Palm paddle, antenna wire, switchmode PSU etc. See my K2 suitcase set at: http://www.g4ifb.com/html/elecraft_k2_k3.html#K2 73 Gary ZL2iFB K3 #2887 K2 #1770 __ 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] K3 Digital Mode Settings
I agree with Don. It all depends. And the advice you read related to modes like CW and SSB that are received by listening to them. The thing with digital modes is that, unlike other modes, it is quite common to receive using a bandwidth that lets many signals through simultaneously. The decoding software doesn't care, since it is using a brick wall DSP filter centered on the signal you are decoding. The problem is AGC. If a strong signal appears in the passband then it will cause the gain to be depressed and that could adversely affect the S/N ratio of the signal you are trying to receive. There are two ways round that. One is to turn AGC off, and regulate the gain using the RF Gain control. This will prevent the signal level varying as signals come and go within the passband. The other is to use narrow filtering to exclude all but the wanted signal. That is the way to extract the best possible copy from a weak signal, but it's more work and not necessary for the majority of contacts. - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://n2.nabble.com/K3-Digital-Mode-Settings-tp4219561p4220241.html Sent from the [K3] 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
Re: [Elecraft] [K3] K3: Carry-on Pelican 1510
David Dunn wrote: In some, only ONE piece of hand luggage allowed eg - Last year in Birmingham UK. I took my K3 to Uk and back in a normal flight case, i.e with pull out handle and wheels on it, The K3 an easy fit, wrapped simply in a towel. (I bought the case for $3 from a charity shop) Weight passed the 7 KG limit OK - after removing my camera from the case at check in. I had had to put it in there at Airport Xray point, as 2 pieces of luggage not allowed. Theres logic for you..! So far I have found a Laptop computer is always an allowed extra, and they never weigh them --- Following the recent bomb attempt it has been reported on the BBC today that only one item of hand luggage is now being permitted on flights to the USA. To be honest with the ever increasing security I don't think I'd even try taking a radio on a plane these days. The anxiety about will it or won't it be allowed is a worry I don't need to add to the already stressful business of flying. It is only a matter of time before the only way people are allowed to fly is without luggage at all and naked. There is already a machine at Manchester airport that lets security guards see through your clothing. I think I'd rather not fly than be subjected to that level of indignity. - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://n2.nabble.com/K3-Carry-on-Pelican-1510-tp4218893p4220266.html Sent from the [K3] 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] [K3] Utility Date and Time
G'day, Just installed a shiny new revision D main DSP board. Date and time needs resetting so decided to use the utility Date and Time configuration option. Selected Date and Time: Current UTC date/time and K3 date/time displayed. Selected Apply: Date updated but the K3 display oscillates at a few per second between date/time and the normal frequency displays. Exiting the utility Date and Time option results in normal display and the time is correct. All firmware (3r68) was reloaded after installing the new main DSP which has installed on it the sub RX DSP and DVR. In other respects all seems to be working OK, just soak testing before parcelling up the old DSP board. The open mic transmission on 20M I mentioned last night seemed to be someone listening to a repeater in the US - N3FCK/R or similar. Regards, Mike VP8NO __ 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] Utility Date and Time
I have just fixed a bug in this area. I will send you a new K3 Utility when I return on Monday. As a workaround, set the K3 month and year to some non-zero value before using this K3 Utility function. Dick, K6KR Sent from my iPhone On Dec 27, 2009, at 4:35 AM, Mike Harris mike.har...@cwimail.fk wrote: G'day, Just installed a shiny new revision D main DSP board. Date and time needs resetting so decided to use the utility Date and Time configuration option. Selected Date and Time: Current UTC date/time and K3 date/time displayed. Selected Apply: Date updated but the K3 display oscillates at a few per second between date/time and the normal frequency displays. Exiting the utility Date and Time option results in normal display and the time is correct. All firmware (3r68) was reloaded after installing the new main DSP which has installed on it the sub RX DSP and DVR. In other respects all seems to be working OK, just soak testing before parcelling up the old DSP board. The open mic transmission on 20M I mentioned last night seemed to be someone listening to a repeater in the US - N3FCK/R or similar. Regards, Mike VP8NO __ 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] K3 Carrying case
Jorge, et al; I find the best case for carrying K2s, K3, etc is a pilot flight bag. These are designed to carry the Jeppesen Approach plates, aircraft operating manuals, etc and are totally accepted by the airlines/security folks. They see them ALL the time. My bag's dimensions are 18L x 10W x 14H, excluding the handle. It has built in combination locks on each toggle opener and built in telescoping handle. The bags are also known as 'chart cases'. Dont get the soft sided cloth bags but rather the vinyl with metal reinforcements. Leather bags are nice but expensive. I also use the typical rollaboard suitcase with carrying hook...You see these everywhere in the airports as both pilots and flight attendants use them. Pilots hang the flight bag from the hook as they pull their gear through the airports. The K2/K3 will also fit nicely in the rollaboard but one must make sure that you will not be flying on a RJ (regional jet), like Pluna as rollaboards will not fit under seats nor in overhead compartments and will be 'gate checked'...the pilot bag, however will fit under the seat in the RJsThe flight bag will easily handle the K3 plus a small power supply such as a Samlex 1235M. A computer style headset and key would also be no problem and I even get my computer 'netbook' in there also...leaving the rollaboard for coax, dipole, swim trunks, flip flops, etc, HI. Hope this helps...all the best in 2010. 73 Tom CX7TT P.S. The Pelican cases are nice as are the aluminum sided cases but tend to call attention to 'something valuable is inside'. Not good for customs or potential thieves. Try: www.snomads.com for examples of reasonably priced cases...or ebay... __ 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 needs survey -- firmware and application
Wayne and All: Lots of material here that I agree with. My additions would be: - NR settings recalled by mode. When switching from CW to SSB, the NR settings from the last time the mode were used are recalled when the NR is activated. Recall if the NR was on or off from the last time the particular band or mode was used and restore the settings when returning to that band or mode. This feature should be selectable from a menu setting. - Handles for Speech Processor attack and decay plus a ratio and Transmit AGC/leveler threshold adjustment. Current speech processor decay parameters sometimes too slow for my voice in some conditions. I can sometimes punch holes in the audio when the processor grabs a high syllable and holds on to it too long before releasing. This varies with conditions... In contesting situations you can overwhelm the processor when, for example, trying to grab a multiplier while interlocked with a run station in a multi multi environment. A ratio control, implemented with almost all pro audio processing gear, would allow the compression ratio to be adjusted for speech speed up to an including an infinite to one ratio, effectively making the compressor into a limiter. Since the processor works on the IF modulation waveform, we would then, effectively, have a RF Clipper, which would be better than a compressor in my opinion. An AGC feature to smooth out levels in modulation, increasing gain when one speaks softly, decreasing it when one speaks loudly in conjunction with the existing TX Gate feature. We have similar handles on the AGC for receive... I would like them on transmit as well. - Standard Pro-Audio convention equalizer segment frequencies for the equalizer instead of the seemingly random ones currently implemented, as suggested by W4TV in multiple posts in the past. -Lu-w4lt- No virus found in this outgoing message Checked by PC Tools AntiVirus (6.1.0.25 - 6.14000). http://www.pctools.com/free-antivirus/ __ 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] Headphone balance
The voulume on the headphones left is about 50% of the level on the right side. I have tried several different headphones to eliminate them as the problem. Is there any way to balance out the level? I am using the rear phone jack. -- View this message in context: http://n2.nabble.com/Headphone-balance-tp4220519p4220519.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] TX ON K3 - 2,8 kHZ ssb
Hi Gary: I would like to know the procedures to transmit with K3 SSB with bandwith more than 2,8 Khz Thanks in advance Oms PY5EG __ 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] Utility Date and Time
This happens allways if K3 has been set to European Date format dd.mm.yy If I temporary switch to US date formate, I can store Date and time from the PC. If I than go back to EU Date format, it´s ok. 73 de Peter, DL2FI Betreff: [Elecraft] [K3] Utility Date and Time G'day, Selected Date and Time: Current UTC date/time and K3 date/time displayed. Selected Apply: Date updated but the K3 display oscillates at a few per second between date/time and the normal frequency displays. Mike VP8NO __ 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] TX ON K3 - 2,8 kHZ ssb
Oms, That is called ESSB mode and requires the 6 kHz filter. See the menu item CONFIG: TX ESSB in the manual. K4 Utility makes the filter setup easy. 73, Don W3FPR py5eg wrote: Hi Gary: I would like to know the procedures to transmit with K3 SSB with bandwith more than 2,8 Khz Thanks in advance Oms PY5EG __ 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
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] KAT3 - bands
Hello, I am trying to read the full 82 pages K3´s manual and a specific KAT3 manual and I couldn´t find any mention about bands of operation of the KAT3 Could you please tell me if it operate from 160 mts to 6 mts or 2 mts?, warc bands, etc? Thanks, Jorge CX6VM __ 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] Headphone balance
You can set CONFIG: SUB AF to BALANCE and the SUB AF knob will balance between left and right. 73, Don W3FPR W4GRJ wrote: The voulume on the headphones left is about 50% of the level on the right side. I have tried several different headphones to eliminate them as the problem. Is there any way to balance out the level? I am using the rear phone jack. No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.722 / Virus Database: 270.14.121/2589 - Release Date: 12/27/09 04:18:00 __ 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] K3 K3DSPUPGD Installation info?
Terry, I used the Front Panel Microphone Circuit Modification instructions from the Elecraft mods page. That explains the disassembly and assembly of the front panel and DSP board very well. Mike - N5WNG Terry Schieler wrote: I can't seem to locate any info on the installation of the Revision D K3DSPUPGD DSP board on the Elecraft web site. Is it not available until you actually order and receive the upgrade board? If it IS available as a download, I'd like to review it before ordering. Can anyone please help point me toward the installation instructions? Happy New Year! Terry, W0FM K3/100 #474 __ 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 -- View this message in context: http://n2.nabble.com/K3-K3DSPUPGD-Installation-info-tp4218195p4220606.html Sent from the [K3] 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
Re: [Elecraft] K3 Carrying case
P.S. The Pelican cases are nice as are the aluminum sided cases but tend to call attention to 'something valuable is inside'. Not good for customs or potential thieves. I travel to the PJ2T station with my K3 in a well-padded Pelican 1550 case. Because I also take my laptop and many $$ of camera gear on these trips, I carry them on and I check the K3. To avoid drawing attention to the TSA-locked Pelican case, I put it in a beat-up hard-sided Samsonite suitcase that does not stand out among all the other luggage. 73, Jeff K8ND __ 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] KAT3 - bands
It works on all bands from 160 to 6 meters. Dave W7AQK - Original Message - From: Jorge Diez - CX6VM cx6vm.jo...@adinet.com.uy To: 'Elecraft Reflector' elecraft@mailman.qth.net Sent: Sunday, December 27, 2009 7:10 AM Subject: [Elecraft] KAT3 - bands Hello, I am trying to read the full 82 pages K3´s manual and a specific KAT3 manual and I couldn´t find any mention about bands of operation of the KAT3 Could you please tell me if it operate from 160 mts to 6 mts or 2 mts?, warc bands, etc? Thanks, Jorge CX6VM __ 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] Headphone balance
Just changed CONFIG: SUB AF to BALANCE, but I don't think it is acting correctly. Now the sub af controls the volume of the left. Turning sub af full ccw it is at max volume but is still about 50% lower than the right. Turning sub af full cw it is at 0% volume. So, the sub af control is only changing the volume of the left side only. From: Don Wilhelm-4 [via Elecraft] [mailto:ml-node+4220574-863075...@n2.nabble.com] Sent: Sunday, December 27, 2009 9:12 AM To: W4GRJ Subject: Re: [Elecraft] Headphone balance You can set CONFIG: SUB AF to BALANCE and the SUB AF knob will balance between left and right. 73, Don W3FPR W4GRJ wrote: The voulume on the headphones left is about 50% of the level on the right side. I have tried several different headphones to eliminate them as the problem. Is there any way to balance out the level? I am using the rear phone jack. No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.722 / Virus Database: 270.14.121/2589 - Release Date: 12/27/09 04:18:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] http://n2.nabble.com/user/SendEmail.jtp?type=nodenode=4220574i=0 This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html _ View message @ http://n2.nabble.com/Headphone-balance-tp4220519p4220574.html To unsubscribe from Headphone balance, click (link removed) lbGQub3JnfDQyMjA1MTl8LTE1NTQ0MzE1MTk= here. No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.430 / Virus Database: 270.14.120/2587 - Release Date: 12/27/09 09:18:00 -- View this message in context: http://n2.nabble.com/Headphone-balance-tp4220519p4220649.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
Re: [Elecraft] [K3] K3: Carry-on
On my 3 flights from heathrow to Dallas Jan thro Nov this year they have been VERY strict on the one item of carry on, which includes purses, computer bags etc rule. This has resulted on one occasion of my 2nd checked bag containing only an empty laptop bag, which had customs at DFW examining the case linings very carefully! Bringing the K3 to England for christmas this year (in its padded bag inside my computer backpack) I was amused when the TSA took it out of the bag, after I told him it was a ham transceiver, picked it up with 2 hands and said this is a much lighter radio than Hams usually try and take to the caribbean Dave ww2r, g4fre Message: 47 Date: Sun, 27 Dec 2009 03:15:26 -0800 (PST) From: Julian, G4ILO julian.g4...@gmail.com Subject: Re: [Elecraft] [K3] K3: Carry-on Pelican 1510 To: elecraft@mailman.qth.net Message-ID: 1261912526618-4220266.p...@n2.nabble.com Content-Type: text/plain; charset=us-ascii Following the recent bomb attempt it has been reported on the BBC today that only one item of hand luggage is now being permitted on flights to the USA. - Julian, G4ILO. K2 #392 K3 #222. __ 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] Headphone balance
Don Wilhelm wrote: You can set CONFIG: SUB AF to BALANCE and the SUB AF knob will balance between left and right. Unfortunately this only works in Diversity mode. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco __ 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] Headphone balance
Using the Sub for balance works fine for in or out of Diversity mode. Rick K6LE On 12/27/2009, at 8:09 , Vic K2VCO wrote: Don Wilhelm wrote: You can set CONFIG: SUB AF to BALANCE and the SUB AF knob will balance between left and right. Unfortunately this only works in Diversity mode. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco __ 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] Headphone balance
Hmmm... it works here by just tapping the SUB on and setting CONFIG: SUB to Balanced. Inner knob (Main AF) controls the overall volume level and outer knob (Sub AF) controls left-right balance. 73, Ken K3IU Portsmouth, RI On 12/27/2009 11:09 AM, Vic K2VCO wrote: Don Wilhelm wrote: You can set CONFIG: SUB AF to BALANCE and the SUB AF knob will balance between left and right. Unfortunately this only works in Diversity mode. __ 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] Headphone balance
K6LE wrote: Using the Sub for balance works fine for in or out of Diversity mode. Sorry, senility attack. CONFIG: SUB BALANCE allows you too use the SUB af gain control to act as a balance control between the main and sub receivers, either in diversity or normal mode. What it does *not* do (and would be nice) is to work as a stereo balance control when the sub receiver is turned off or not installed. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco __ 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] Headphone balance
Sounds like I have a problem. Will contact Elecraft next week, radio was just received last week. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ken K3IU Sent: Sunday, December 27, 2009 11:19 AM To: Vic K2VCO Cc: elecraft@mailman.qth.net; d...@w3fpr.com Subject: Re: [Elecraft] Headphone balance Hmmm... it works here by just tapping the SUB on and setting CONFIG: SUB to Balanced. Inner knob (Main AF) controls the overall volume level and outer knob (Sub AF) controls left-right balance. 73, Ken K3IU Portsmouth, RI On 12/27/2009 11:09 AM, Vic K2VCO wrote: Don Wilhelm wrote: You can set CONFIG: SUB AF to BALANCE and the SUB AF knob will balance between left and right. Unfortunately this only works in Diversity mode. __ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.430 / Virus Database: 270.14.121/2589 - Release Date: 12/27/09 09:18:00 __ 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] Headphone balance
Do you have CONFIG:Spkrs set to 2??? 73, Ken K3IU On 12/27/2009 11:34 AM, W4GRJ wrote: Sounds like I have a problem. Will contact Elecraft next week, radio was just received last week. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ken K3IU Sent: Sunday, December 27, 2009 11:19 AM To: Vic K2VCO Cc: elecraft@mailman.qth.net; d...@w3fpr.com Subject: Re: [Elecraft] Headphone balance Hmmm... it works here by just tapping the SUB on and setting CONFIG: SUB to Balanced. Inner knob (Main AF) controls the overall volume level and outer knob (Sub AF) controls left-right balance. 73, Ken K3IU Portsmouth, RI On 12/27/2009 11:09 AM, Vic K2VCO wrote: Don Wilhelm wrote: You can set CONFIG: SUB AF to BALANCE and the SUB AF knob will balance between left and right. Unfortunately this only works in Diversity mode. __ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.430 / Virus Database: 270.14.121/2589 - Release Date: 12/27/09 09:18:00 __ 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] Headphone balance
Just change CONFIG Spkrs to 2 .. No change, the left volume still approx 50% of the right From: Ken Wagner K3IU [mailto:kenk...@cox.net] Sent: Sunday, December 27, 2009 11:43 AM To: W4GRJ Cc: 'Vic K2VCO'; elecraft@mailman.qth.net; d...@w3fpr.com Subject: Re: [Elecraft] Headphone balance Do you have CONFIG:Spkrs set to 2??? 73, Ken K3IU On 12/27/2009 11:34 AM, W4GRJ wrote: Sounds like I have a problem. Will contact Elecraft next week, radio was just received last week. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ken K3IU Sent: Sunday, December 27, 2009 11:19 AM To: Vic K2VCO Cc: elecraft@mailman.qth.net; d...@w3fpr.com Subject: Re: [Elecraft] Headphone balance Hmmm... it works here by just tapping the SUB on and setting CONFIG: SUB to Balanced. Inner knob (Main AF) controls the overall volume level and outer knob (Sub AF) controls left-right balance. 73, Ken K3IU Portsmouth, RI On 12/27/2009 11:09 AM, Vic K2VCO wrote: Don Wilhelm wrote: You can set CONFIG: SUB AF to BALANCE and the SUB AF knob will balance between left and right. Unfortunately this only works in Diversity mode. __ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.430 / Virus Database: 270.14.121/2589 - Release Date: 12/27/09 09:18:00 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.430 / Virus Database: 270.14.121/2589 - Release Date: 12/27/09 09:18:00 __ 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] K3 LP-Pan Lilliput PowerSDR
I love it when a plan comes together. http://www.youtube.com/watch?v=3xPrtveUAdU K3 using LP-Pan as panadapter, PowerSDR-IF software and a Lilliput 7 monitor on top of the K3. The Lilliput is a second monitor and the usual logging stuff is on the main monitor. The Lilliput fixed resolution is enough to get the important part of the PowerSDR-IF window. 73 de K1ESE John __ 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] Headphone balance
W4GRJ wrote: Just change CONFIG Spkrs to 2 .. No change, the left volume still approx 50% of the right Swap the 'phones on your head. If still 50% down on the left the problem is with your hearing, not the radio. Gus Hansen KB0YH __ 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] K3: Carry-on Pelican 1510
Julian, G4ILO wrote: Following the recent bomb attempt it has been reported on the BBC today that only one item of hand luggage is now being permitted on flights to the USA. I think we can forget flying to the USA for the time being. I am wondering about going by boat for a nice change. I have been worrying what might happen if someone tried to hide a bomb in their underwear, we already have to remove our shoes - but this is besides the point. I don't think it is a good idea to take a radio transmitter as hand luggage, in the past yes but not now with the insecurity checks. You could easily have fitted a bomb inside, you may use it to jam the aircraft communications or even use its' sharp bits as a weapon. Obviously you would not do this but someone might and that is enough. Radio transmitters need to go in the hold or not go at all. Having seen how bags were literally thrown from the hold on a recent Easyjet flight I was in the plane next to in Toulouse, I would never put my K3 in the hold. So that particular Pelican case is unable to protect the K3 in the hold and so it would be a waste of money. If you must take the K3, use a larger pelican case with plenty of bubble wrap. Remember it will probably be opened by security so it needs to be easily repackable. Mike -- View this message in context: http://n2.nabble.com/K3-Carry-on-Pelican-1510-tp4218893p4220993.html Sent from the [K3] 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
Re: [Elecraft] Headphone balance
Similarly, try a different set of headphones. It could be the headphones themselves at fault. 73, Don W3FPR Augie Hansen wrote: W4GRJ wrote: Just change CONFIG Spkrs to 2 .. No change, the left volume still approx 50% of the right Swap the 'phones on your head. If still 50% down on the left the problem is with your hearing, not the radio. Gus Hansen KB0YH __ 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] On making the K3 decision
Just before Christmas, I slammed down the plastic on my Apple Mac Book Pro laptop and ordered the K3. This was the denouement of a long process. I started getting interested back when the order queue was very long, months and months. I put it off until the line got smaller. Came back in November when I noticed that the web site said they were shipping all orders upon receipt. But, I was still hesitant. I was not sure if I was a true K3 kind of guy. The K3 was definitely not an appliance rig (not my sort of appliance rig that is, I currently operate an Icom 756 Pro III -- the appliance rig guy's appliance). But, my interest in kit building and the idea of learning more of the electronics that I once knew as a teenager, motivated me to pursue the K3. My past kit experience (in order): Knight-Kit R100A (1960 or so), Eico 720 (1961), Heathkit VTVM, Homebrew dual-811 linear and power supply, Homebrew SSB exciter (circa 1966), --40 year gap--, simple PCB audio oscillator (2008), FM receiver (2008), Norcal 40A (2008/2009). But, what really sold me on the K3 was this Elecraft Reflector and the people who are here answering questions. I think that this reflector is one of the best sales methods of Elecraft. The collection of K1/K2/K3 and whatever other K-thing owners are most often friendly, ready to answer questions from this beginner, and have a strong group technical depth. From my perspective though, seven reasons why I picked the K3 over other rigs? 1. The advanced SDR features of the K3. 2. The K3 performance. 3. The K3 I/F port (I want to experiment and play with DSP algorithms and other features so the ability of grabbing a real-time signal is nice to have). 4. The on-going refinement (new options), fixup, and update of the K3 by Elecraft (I like the we are not yet done attitude). 5. The deep flexibility of the K3. 6. Wayne and Eric. 7. This Elecraft Reflector. 73, phil, K7PEH __ 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] K2 - Erratic SSB output on 160m
Hi - My K2 has a 160m option as well as the SSB Option. On all bands, 80 - 10m I get good SSB transmission. Using a dummy load and watt meter I can see the SSB transmission is stable and varies between dips of 4-5 watts up to peaks of 13 watts (I'm not using the 100W PA). This is not the case on 160m. On CW I get a sold 15W out on 160m, but when using LSB I see the watt meter is hovering between 0-2 W, but when I whistle into the microphone it goes all the way up to 15 W. The question is then why is 160m so lacking in response to voice when compared with the other bands that have far more sensitivity. I am using the delivered MH2 microphone. I have disabled the antenna tuner, but this makes no difference. It's as if the gain from the microphone is not getting through to the 160m option. Any suggestions would be welcome. Thanks and 73 Robin OZ6ABM / 5P5R -- View this message in context: http://n2.nabble.com/K2-Erratic-SSB-output-on-160m-tp4221088p4221088.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] [K2] Erratic output on 160m
Hi - My K2 has a 160m option as well as the SSB Option. On all bands, 80 - 10m I get good SSB transmission. Using a dummy load and watt meter I can see the SSB transmission is stable and varies between dips of 4-5 watts up to peaks of 13 watts (I'm not using the 100W PA). This is not the case on 160m. On CW I get a sold 15W out on 160m, but when using LSB I see the watt meter is hovering between 0-2 W, but when I whistle into the microphone it goes all the way up to 15 W. The question is then why is 160m so lacking in response to voice when compared with the other bands that have far more sensitivity. I am using the delivered MH2 microphone. I have disabled the antenna tuner, but this makes no difference. It's as if the gain from the microphone is not getting through to the 160m option. Any suggestions would be welcome. Thanks and 73 Robin OZ6ABM / 5P5R -- View this message in context: http://n2.nabble.com/Erratic-output-on-160m-tp4221103p4221103.html Sent from the [K2] 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
Re: [Elecraft] Headphone balance
I did all the obvious eliminations before posting the problemhearing is fine, all 3 studio headphones same results. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Augie Hansen Sent: Sunday, December 27, 2009 12:14 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Headphone balance W4GRJ wrote: Just change CONFIG Spkrs to 2 .. No change, the left volume still approx 50% of the right Swap the 'phones on your head. If still 50% down on the left the problem is with your hearing, not the radio. Gus Hansen KB0YH __ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.430 / Virus Database: 270.14.121/2589 - Release Date: 12/27/09 09:18:00 __ 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 SSB Net Announcement
Propagation is very bad on my end today; band conditions are noisy and lot of QSB. I can barely hear the NC above the noise. Perhaps next time... 73 de James K2QI Phil and Christina wrote: The weekly SSB net will take place on Sunday, December 27, 2009 at 1800Z on 14.314 MHz. I will be away from the shack, but Mark, K4SO, in Virginia will be the net control station. Hope everyone is having a nice holiday season. 73, Phil, NS7P __ 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 - --... ...-- -.. . .--- .- -- . ... -- View this message in context: http://n2.nabble.com/Elecraft-SSB-Net-Announcement-tp4218238p4221133.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
Re: [Elecraft] [K2] Erratic output on 160m
Robin, There is no difference in the K2 SSB generation from one band to another. That means it the K2 is capable of full power in CW mode, and the K2 works fine on SSB on all other bands, it should work just fine in SSB on 160 meters. Is there any chance that your wattmeter is responding differently on 160 than it is on other bands? A quick look at the RF output with an 'oscilloscope would tell you the proper answer - just compare the waveform on 160 meters with that obtained on 80 or 40 meters. 73, Don W3FPR Robin Kiszka wrote: Hi - My K2 has a 160m option as well as the SSB Option. On all bands, 80 - 10m I get good SSB transmission. Using a dummy load and watt meter I can see the SSB transmission is stable and varies between dips of 4-5 watts up to peaks of 13 watts (I'm not using the 100W PA). This is not the case on 160m. On CW I get a sold 15W out on 160m, but when using LSB I see the watt meter is hovering between 0-2 W, but when I whistle into the microphone it goes all the way up to 15 W. The question is then why is 160m so lacking in response to voice when compared with the other bands that have far more sensitivity. I am using the delivered MH2 microphone. I have disabled the antenna tuner, but this makes no difference. It's as if the gain from the microphone is not getting through to the 160m option. Any suggestions would be welcome. __ 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] Utility Date and Time
The same phenomenon occurred here but if the date is set manually in the K3's Config menu the Utility time update works ok. 73 to all Geoff G3UCK - Original Message - From: Dick Dievendorff die...@comcast.net To: Mike Harris mike.har...@cwimail.fk I have just fixed a bug in this area. I will send you a new K3 Utility when I return on Monday. As a workaround, set the K3 month and year to some non-zero value before using this K3 Utility function. Dick, K6KR __ 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] Erratic output on 160m
Hi Don, I doubt there is any problem on the watt meter as it's working fine on other radios for 160m. Another reason I suspect it is a K2 issue is because the K2 bar graph LED hardly lights on 160m SSB Tx, whereas on 80m and up I can easily get 4 or 5 bars with normal LSB speech on Tx. It's like the radio is deaf to the microphone on 160m. 73 Robin OZ6ABM / 5P5R -- View this message in context: http://n2.nabble.com/Erratic-output-on-160m-tp4221103p4221237.html Sent from the [K2] 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
Re: [Elecraft] UK Elecraft Net
I listened for the UK net at 0900Z down here in southern California. All I heard were a few weak W1 - W4's. Nothing from across the pond, not even a peep. Did anyone in the US hear the net? Just curious. 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
Re: [Elecraft] K144XV required filters
Hi Jim, We'll clarify this on the web site and in the K144XV manual. tnx Wayne On Dec 26, 2009, at 8:11 AM, Jim Spears wrote: One thing that I do not see is the minimum requirement for the FM filter if one wishes to use the K144XV to transmit FM. I assume that I need the FM filter installed on the main board for both transmit and receive. If I want to use the XV to receive FM on the sub then I need a second FM filter installed there. And if I am not interested in FM then I do not need the FM filter in either place as the installed filters will work just fine for SSB, CW, etc. Jim N1NK __ 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] Erratic output on 160m
Robin, It is possible for the K2 to have lower transmit RF gain on 160 meters, but then since you can obtain full output by whistling into the microphone the K2 RF cahin has adequate gain on 160 meters. The highest gain through the K2 transmit stages is normally at 40 or 30 meters although some show the highest gain somewhere between 80 meters and 40 meters. In any case, if you get any bars at all on the ALC indication that is sufficient for full output. You might want to try increasing the compression a little - I normally run the compression on my K2 at 3:1 - that will bring up ;;the average power for you. 73, Don W3FPR Robin Kiszka wrote: Hi Don, I doubt there is any problem on the watt meter as it's working fine on other radios for 160m. Another reason I suspect it is a K2 issue is because the K2 bar graph LED hardly lights on 160m SSB Tx, whereas on 80m and up I can easily get 4 or 5 bars with normal LSB speech on Tx. It's like the radio is deaf to the microphone on 160m. 73 Robin OZ6ABM / 5P5R __ 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 needs survey -- firmware and application software
Thanks for the input, everyone. I've saved all of your suggestions, and no doubt we'll be reviewing and prioritizing well into 2010. Probably time to end the thread, too. Here's to a safe and happy new year! 73, Wayne N6KR __ 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] K2 for sale
K2 s/n 3346 Has the following options: KIO2 KAT2 KSB2 K160RX KNB2 KAF2 MH2 CW tuning indicator T/R relay driver switching is with the same mosfet used in the K3 Frequency calibration is excellent Filters are set up using Spectrogram and with the wife monitoring through headphones she says I sound natural Very nice radio. Of course comes with all manuals and cables Ready to operate Asking$900.00 If interested please contact me off list. Thank youGilK8EAG __ 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] Wrist Strap Ground
I did not know such a thing existed until a service tech came to fix some servers at work, and I saw one of these in the replacement part box: A 3M Disposable Wrist Ground Strap. I see they're around $2 - $3, and it might be a viable alternative to buying a real one, for someone who's only going to use it once. Search for 3m disposable wrist ground 116 0134 , and you'll find some hits. 73, Steve NN4X __ 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
Re: [Elecraft] [K3] Utility Date and Time
Interesting. I thought I broke the radio when it did the date/time flashing last night. This list is always one step ahead of me. 73 Keith W8GX On Dec 27, 2009, at 1:45 PM, Geoffrey Downs wrote: The same phenomenon occurred here but if the date is set manually in the K3's Config menu the Utility time update works ok. 73 to all Geoff G3UCK - Original Message - From: Dick Dievendorff die...@comcast.net To: Mike Harris mike.har...@cwimail.fk I have just fixed a bug in this area. I will send you a new K3 Utility when I return on Monday. As a workaround, set the K3 month and year to some non-zero value before using this K3 Utility function. Dick, K6KR __ 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] Utility Date and Time
Thanks, Geoffrey. I had an off-by-one problem. I'll get a new revision out this week. 73 de Dick, K6KR Sent from my iPhone On Dec 27, 2009, at 10:45 AM, Geoffrey Downs geoff...@downs.globalnet.co.uk wrote: The same phenomenon occurred here but if the date is set manually in the K3's Config menu the Utility time update works ok. 73 to all Geoff G3UCK - Original Message - From: Dick Dievendorff die...@comcast.net To: Mike Harris mike.har...@cwimail.fk I have just fixed a bug in this area. I will send you a new K3 Utility when I return on Monday. As a workaround, set the K3 month and year to some non-zero value before using this K3 Utility function. Dick, K6KR __ 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 front panel LCD soldering
KA9UCP writes: One point they did make, be sure the IC under the LCD is checked for proper soldering as any corrections after the LCD is installed is a bear. W3FPR writes: The problem was that for a period of time, the leads on the backlight assembly from the vendor were too short, and those backlight assemblies with short leads must use the instructions on the errata page Gentlemen, Your recommendations are appreciated. I checked the IC joints VERY carefully for cold joints and bridges. I reflowed all joints as well. My leads are long as well. I have a followup question. The instructions specifically say NOT to remove the backing on either side. My LCD backlight assembly has white diffusers on both sides (so far so good). There is, however a SECOND thin plastic translucent (not white) film as well on top of the assembly which seems to be removable. Can I remove this second film? tnx. Conway Yee, N2JWQ __ 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 front panel LCD soldering
Conway, You may (should) leave that film in place. 73, Don W3FPR Conway Yee wrote: Gentlemen, Your recommendations are appreciated. I checked the IC joints VERY carefully for cold joints and bridges. I reflowed all joints as well. My leads are long as well. I have a followup question. The instructions specifically say NOT to remove the backing on either side. My LCD backlight assembly has white diffusers on both sides (so far so good). There is, however a SECOND thin plastic translucent (not white) film as well on top of the assembly which seems to be removable. Can I remove this second film? tnx. Conway Yee, N2JWQ __ 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] K3: Carry-on Pelican 1510
AD6XY wrote: Having seen how bags were literally thrown from the hold on a recent Easyjet flight I was in the plane next to in Toulouse, I would never put my K3 in the hold. The baggage handlers unloading my EasyJet flight to Nice in August managed to fracture the welds in a steel framed suitcase and broke the antenna that was in there just from the impact. (I don't know if it's the French or if they reserve special treatment for EasyJet.) If a K3 had been in that case I think it would have ended up in several pieces. I can't envisage a case that would protect a radio from that kind of treatment. - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://n2.nabble.com/K3-Carry-on-Pelican-1510-tp4218893p4221648.html Sent from the [K3] 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
Re: [Elecraft] Wrist Strap Ground
I've been into my K3 (#2241) dozens of times, so a throw-away strap would actually be expensive! 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
Re: [Elecraft] [K2] PLL Reference Oscillator Question
Don, I did the voltage tests and they both checked out. U6 was at 7.4, so a little under 8, but I would imagine that is within tolerance. 73, Byron N6UI Don Wilhelm-4 wrote: Byron, Yes, that prior response may be helpful, but all may not apply to your case - each one is different. To be specific for your problem, first monitor the voltage from RF Board U5 pin 7 while in CAL FCTR mode. When tapping BAND+, the voltage should go to about 4 volts and tapping BAND- should drop the voltage to near zero volts. If that is OK, then move on to U6 pin 1 - tapping BAND+ should produce about 8 volts and BAND- should produce nearly zero volts. Check those conditions first. If those are all OK, then you can move on to the varactor tests, but if there is a problem with the voltages above, get back with me for additional tests and actions. 73, Don W3FPR bviets wrote: Hi Don, Thank you for your response. When I try the freq. range test, there is no freq. change. I searched the reflector and found an earlier email response authored by yourself with the subject of: K2 PLL range test SN 05233. That person had a similar issue, so it would seem I can start tracking down the problem based on your diagnosis in that email. 73, Byron N6UI Don Wilhelm-4 wrote: Byron, Don't be too concerned about the 4 MHz oscillator calibration at this point in your assembly process. Once you have completed your K2, you can refine the calibration - see the K2 Dial Calibration article on my website www.w3fpr.com for the rest of the story. Yes, 12650 is higher than the high end of the range should be, but please tell me what the low range is - while in CAL FCTR, tap BAND+ and tell me what the frequency is, then tap BAND- and again tell me what the displayed frequency is. Perhaps I can craft an answer to the possible trouble spots from that information. 73, Don W3FPR Byron Viets wrote: Hello everyone. I purchased my K2 kit about 4 years ago and as life would have it, I rarely have time to work on the beast except during holidays etc. More time for amateur radio would sure be nice, but I'm not near retirement and for some reason I keep getting pesky bills in the mail. Anyway here is my situation: 1) I am at the Alignment and Test, Part II portion and trying to get through the 4 MHz Oscillator Calibration section. 2) When I take a freq. measurement at TP3 for the PLL with the frequency probe, I get a reading of ~12650, obviously way too high. 3) I inspected parts, soldering etc and cannot find a fault. 4) Decided to do some signal tracing and performed a measurement of the reference oscillator signal on pin 1 of U4. My reading is .51, instead of the expected 0.8-1.8. Vrms. So my question is this: It seems that the 12650 measurement is so high that it may be an indicator that the X1 crystal in the PLL oscillator is defective. However, with the low reading on pin 1 of U4 I'm not so sure about the crystal. Could the increased frequency reading at TP3, cause the voltage drain on the U4 or am I barking up the wrong tree? I've looked through the email archives and haven't found anything quite similar to my issue. I hate to start pulling stuff apart if the crystal is the issue and would like to hear what others think of the problem. __ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.722 / Virus Database: 270.14.120/2587 - Release Date: 12/26/09 03:27:00 __ 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 -- View this message in context: http://n2.nabble.com/PLL-Reference-Oscillator-Question-tp4219007p4221868.html Sent from the [K2] 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] Help, please. K3 and PSK31
I'm getting round to trying PSK31 and later maybe some other data modes. I want to use either the stereo line out source or the headphones socket on the back panel of the K3, which is getting mighty full of connections these days. I could use some advice from the collective HI! Should I use a stereo jack with tip active, sleeve ground and ring unconnected, or should ring and tip be paralleled for use with line out? Would I be best using the line out or headphone socket (with configuration speakers+phones=yes)? Also, if anyone has experience of using the Tigertronics Signalink USB with the K3 I'd be very interested to have your comments. Grateful thanks for any assistance and a very Happy New Year to all my readers HI! 73 DaveL G3TJP __ 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] Sub Receive
I have my sub receiver connected to a receive only antenna through the BNC connector on the K3 rear, the coax from the BNC goes to the second receiver board. I assume this is the only way a signal can get to the sub receiver? a signal cannot be routed via the ATU to the sub receive board? Thank you. R Thorpe KD6LAZ __ 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] Sub Receive
On Sun, Dec 27, 2009 at 11:26 PM, Richard Thorpe kis...@earthlink.net wrote: I have my sub receiver connected to a receive only antenna through the BNC connector on the K3 rear, the coax from the BNC goes to the second receiver board. I assume this is the only way a signal can get to the sub receiver? a signal cannot be routed via the ATU to the sub receive board? Not true, but it requires hardware reconfiguration. See the KRX3 manual, page 24: http://www.elecraft.com/manual/KRX3_Subreceiver_Install_and_Operate_Rev%20D.pdf Also see the section on antenna routing in the K3 manual. ~Iain / N6ML __ 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] K3 needs survey
I didn't realize the list was time-limited, so here goes: 1. Option in CW mode to make USB the 'normal' mode (on the list already?). 2. Xcvr not to 'key' while testing (playing with) the keyer. 3. Ability to assign Audio EQ ON/OFF with PF1 or PF2. 4. More gain for SPKR amp relative to HDST amp (maybe this is hardware). 5. Of lesser importance - the ability to turn the SUB RX ON/OFF while transmitting. I'll start collecting ideas for next year :-) VE7XF __ 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] Filters for K3?
Elecrafters, i am about to order filters for my K3 and would like to hear from the group what filters i should go for. I am a ragchewer as well as a contester, ssb cw. Rarely data modes. I do weak signal work on 160/80 cw. I have 2.8khz ssb in main sub 400hz cw in main sub Should i order the 200hz 5-pole filter for their narrower bandwith or the 250hz 8-pole with steeper skirts? Add 2.1khz or 1.8khz for ssb? What is your recommendation? Should i add filters for both rx's (- diversity) ? If i go for the 5-pole filters,should they be matched by elecraft or is there a method to tweak it in the K3 ? Thanks Martin -- 73, DM4iM __ 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] PLL Reference Oscillator Question
Don, I also took the liberty to do the checks on: RP2 pin 2, and the cathodes on D16 and D17 and they all behaved like U6 pin 1: 7.4 and zero when switching between BAND+ and BAND-. 73, Byron N6UI bviets wrote: Don, I did the voltage tests and they both checked out. U6 was at 7.4, so a little under 8, but I would imagine that is within tolerance. 73, Byron N6UI Don Wilhelm-4 wrote: Byron, Yes, that prior response may be helpful, but all may not apply to your case - each one is different. To be specific for your problem, first monitor the voltage from RF Board U5 pin 7 while in CAL FCTR mode. When tapping BAND+, the voltage should go to about 4 volts and tapping BAND- should drop the voltage to near zero volts. If that is OK, then move on to U6 pin 1 - tapping BAND+ should produce about 8 volts and BAND- should produce nearly zero volts. Check those conditions first. If those are all OK, then you can move on to the varactor tests, but if there is a problem with the voltages above, get back with me for additional tests and actions. 73, Don W3FPR bviets wrote: Hi Don, Thank you for your response. When I try the freq. range test, there is no freq. change. I searched the reflector and found an earlier email response authored by yourself with the subject of: K2 PLL range test SN 05233. That person had a similar issue, so it would seem I can start tracking down the problem based on your diagnosis in that email. 73, Byron N6UI Don Wilhelm-4 wrote: Byron, Don't be too concerned about the 4 MHz oscillator calibration at this point in your assembly process. Once you have completed your K2, you can refine the calibration - see the K2 Dial Calibration article on my website www.w3fpr.com for the rest of the story. Yes, 12650 is higher than the high end of the range should be, but please tell me what the low range is - while in CAL FCTR, tap BAND+ and tell me what the frequency is, then tap BAND- and again tell me what the displayed frequency is. Perhaps I can craft an answer to the possible trouble spots from that information. 73, Don W3FPR Byron Viets wrote: Hello everyone. I purchased my K2 kit about 4 years ago and as life would have it, I rarely have time to work on the beast except during holidays etc. More time for amateur radio would sure be nice, but I'm not near retirement and for some reason I keep getting pesky bills in the mail. Anyway here is my situation: 1) I am at the Alignment and Test, Part II portion and trying to get through the 4 MHz Oscillator Calibration section. 2) When I take a freq. measurement at TP3 for the PLL with the frequency probe, I get a reading of ~12650, obviously way too high. 3) I inspected parts, soldering etc and cannot find a fault. 4) Decided to do some signal tracing and performed a measurement of the reference oscillator signal on pin 1 of U4. My reading is .51, instead of the expected 0.8-1.8. Vrms. So my question is this: It seems that the 12650 measurement is so high that it may be an indicator that the X1 crystal in the PLL oscillator is defective. However, with the low reading on pin 1 of U4 I'm not so sure about the crystal. Could the increased frequency reading at TP3, cause the voltage drain on the U4 or am I barking up the wrong tree? I've looked through the email archives and haven't found anything quite similar to my issue. I hate to start pulling stuff apart if the crystal is the issue and would like to hear what others think of the problem. __ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.722 / Virus Database: 270.14.120/2587 - Release Date: 12/26/09 03:27:00 __ 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 -- View this message in context: http://n2.nabble.com/PLL-Reference-Oscillator-Question-tp4219007p4221974.html Sent from the [K2] 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
Re: [Elecraft] Help, please. K3 and PSK31
David, While your suggested cable from Line Out will work fine for PSK31, if you have the SubRX, you will want to use a full stereo cable between Line Out and the soundcard Line In - it may come in handy to have both channels available in the future. You can use the mono cable (as you described, with a stereo plug) for the Line In to the K3 (soundcard Line Out). The RS-232 cable can be used for PTT if the software application supports the use of either DTR or RTS for PTT. Just set the K3 menu to use the same signal that the application is providing. Sorry, but I do not use the Signalink or any other interface with the K3 - I connect directly to the computer soundcard and the RS-232 cable does the rest, I use HRD and DM780 for digital work. Perhaps others can help you with the Signalink connections. 73, Don W3FPR David Lankshear wrote: I'm getting round to trying PSK31 and later maybe some other data modes. I want to use either the stereo line out source or the headphones socket on the back panel of the K3, which is getting mighty full of connections these days. I could use some advice from the collective HI! Should I use a stereo jack with tip active, sleeve ground and ring unconnected, or should ring and tip be paralleled for use with line out? Would I be best using the line out or headphone socket (with configuration speakers+phones=yes)? Also, if anyone has experience of using the Tigertronics Signalink USB with the K3 I'd be very interested to have your comments. Grateful thanks for any assistance and a very Happy New Year to all my readers HI! 73 DaveL G3TJP __ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.722 / Virus Database: 270.14.121/2589 - Release Date: 12/27/09 04:18:00 __ 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] Help, please. K3 and PSK31
Dave - I'm not using an interface. Line-out from the K3 to line-in on the computer and line-in to the K3 from line-out of the computer. 1/8 inch stereo cables (tip,ring,sleeve) unmodified. MAIN: MIC+LIN, and vox on. HTH. 73, and HNY! Mike NF4L David Lankshear wrote: I'm getting round to trying PSK31 and later maybe some other data modes. I want to use either the stereo line out source or the headphones socket on the back panel of the K3, which is getting mighty full of connections these days. I could use some advice from the collective HI! Should I use a stereo jack with tip active, sleeve ground and ring unconnected, or should ring and tip be paralleled for use with line out? Would I be best using the line out or headphone socket (with configuration speakers+phones=yes)? Also, if anyone has experience of using the Tigertronics Signalink USB with the K3 I'd be very interested to have your comments. Grateful thanks for any assistance and a very Happy New Year to all my readers HI! 73 DaveL G3TJP __ 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] PLL Reference Oscillator Question
Byron, Fine on all that, so far so good - next is to check L31, X1, R21, D18, C84 and C85 for good soldering, and make certain D16 and D17 are oriented correctly. If nothing is found awry, I would arbitrarily replace X1 as the first step and after than D16 and D17. Remember that this is just like a VXO circuit, no real 'magic', you add capacitance (that is what the varactors should be doing at lower voltages) and the frequency shifts downward. 73, Don W3FPR bviets wrote: Don, I also took the liberty to do the checks on: RP2 pin 2, and the cathodes on D16 and D17 and they all behaved like U6 pin 1: 7.4 and zero when switching between BAND+ and BAND-. 73, Byron N6UI __ 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] Help, please. K3 and PSK31
Dave, You should use the line out connector. The level on this output is not affected by the AF gain controls, whereas the level on the headphone output depends on the AF gain controls and also on whether or not you have headphones plugged into the front panel (since the two are in parallel). The line out level is adjusted from the CONFIG:LIN OUT menu item (it's a set and forget adjustment). Using the headphone connector also disables the speaker, whereas the line out connector does not. A simple stereo cable should do fine. If you have a sub-receiver and it is on, the right channel will carry output from the sub-RX; the left channel is always the main RX. Most sound card software defaults to the left channel, but almost all software can be configured to use the right channel instead, and either by running two instances of a program or with software that supports dual channels, you can receive independently on both receivers. If your sound device only has a mono microphone input, you might want to check whether the right channel is used to carry a DC voltage, and if it is, you would leave the ring disconnected, but otherwise, a straight stereo cable should work fine. 73, Rich VE3KI G3TJP wrote: I'm getting round to trying PSK31 and later maybe some other data modes. I want to use either the stereo line out source or the headphones socket on the back \ panel of the K3, which is getting mighty full of connections these days. I could use some advice from the collective HI! Should I use a stereo jack with tip active, sleeve ground and ring unconnected, or \ should ring and tip be paralleled for use with line out? Would I be best using the line out or headphone socket (with configuration \ speakers+phones=yes)? Also, if anyone has experience of using the Tigertronics Signalink USB with the K3 \ I'd be very interested to have your comments. __ 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] Filters for K3?
I have the 2.8/8-pole, the 1.8/8-pole and the 400/8-pole. So far I have not felt the need for a narrower CW filter although I have not contested with mine yet. I currently do not own the 2nd receiver. 73 Keith W8GX On Dec 27, 2009, at 7:00 PM, Martin Schmiedel wrote: Elecrafters, i am about to order filters for my K3 and would like to hear from the group what filters i should go for. I am a ragchewer as well as a contester, ssb cw. Rarely data modes. I do weak signal work on 160/80 cw. I have 2.8khz ssb in main sub 400hz cw in main sub Should i order the 200hz 5-pole filter for their narrower bandwith or the 250hz 8-pole with steeper skirts? Add 2.1khz or 1.8khz for ssb? What is your recommendation? Should i add filters for both rx's (- diversity) ? If i go for the 5-pole filters,should they be matched by elecraft or is there a method to tweak it in the K3 ? Thanks Martin -- 73, DM4iM __ 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] Filters for K3?
I have the 8-pole 2.8, 1.0, and 400 in both the main and sub receivers. The only other one that I've been debating on is the AM filter. Otherwise no regrets. Mike AC6JA K3 #03215 In a message dated 12/27/2009 4:27:25 P.M. Pacific Standard Time, tu...@zoominternet.net writes: I have the 2.8/8-pole, the 1.8/8-pole and the 400/8-pole. So far I have not felt the need for a narrower CW filter although I have not contested with mine yet. I currently do not own the 2nd receiver. 73 Keith W8GX On Dec 27, 2009, at 7:00 PM, Martin Schmiedel wrote: Elecrafters, i am about to order filters for my K3 and would like to hear from the group what filters i should go for. I am a ragchewer as well as a contester, ssb cw. Rarely data modes. I do weak signal work on 160/80 cw. I have 2.8khz ssb in main sub 400hz cw in main sub Should i order the 200hz 5-pole filter for their narrower bandwith or the 250hz 8-pole with steeper skirts? Add 2.1khz or 1.8khz for ssb? What is your recommendation? Should i add filters for both rx's (- diversity) ? If i go for the 5-pole filters,should they be matched by elecraft or is there a method to tweak it in the K3 ? Thanks Martin -- 73, DM4iM __ 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] Elecraft SSB Net results (12/27/2009)
Elecrafters, Phil, NS7P, our regular NCS was away this week. My thanks to Steve, W0SZ, and Dave, W8OV for calling back east to assist me, as well as other relays. Signals were not especially strong, and I have a new, very slow, pulse noise source nearby. The K3's receiver was a real help. W6GS had the highest SN (3795) on the net today. Dean said he received the rig Thursday, and that it still has new car smell. W8MYO had the lowest SN (166). We began at 18:00Z on 14.314, and closed the net at 19:01 with the following 36 check-ins + NCS. I quickly counted 22 states and two DX countries present (plus US, of course.) W5ETJ Gary TX K3 3227 N0YB Larry IA K3 3435 W0NTA Dick CO K3 1208 W0FM Terry MO K3 474 K6LE Rick CA K3 3727 W8OV Dave TX K3 3139 W6GS Dean CA K3 3795 WD6DBM Eric CA K3 3545 W0SZ Steve CO K3 176 K4TM Cary VA K3 3491 and K2 4991 K4GCJ Gerry NC K3 1597 KD5ZLB Edwin LA K3 3147 W7NMD Palmer AR K3 3779 W2RWA Dick NY K3 2603 K0YO Mike UT K3 3488 NF4L Mike FL K3 3539 AD5SX Paul NM TenTec Jupiter VE3QP Tony ONT K3 137 AE1P Neal NH K3 2979 W4PFM Paul VA K3 1673 K8MBY Phil OH K3 609 KA1OZ Dick MA K3 859 AK5U Fredric TX K3 3246 N9QR Mike IN K3 3786 W8MYO Gary OH K3 166 K0EKL Dave MN K3 400 KD6LAZ Dick CA K3 3697 KD0R David KS K3 TS-680, K2 with blown final AC0NM/6 Glenn CA K3 2843 K6ZRX Josh CA K3 722 AB1DD Carl VT K3 3782 WU7R Charles MT K3 3720 9Y4SRR Ravi Just stopped by W6FXE David CA Our Hallicrafters check-in for today, S-38 on the shelf K7IWH Tom WA IC-761 WB8YQJ Don CA K3 272 K2 23 (I may have these wrong) K4SO Mark VA K3 2861 (NCS) There was one inquiry about the P3, pricing and availability, without a specific answer. The e-mail reflector and Elecraft website will provide the details, probably early in 2010. Hoping all had a Merry Christmas, and wishing you a Happy New Year, 2010. 73, Mark www.k4so.com www.picasaweb.com/kfourso kfourso.googlepages.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
Re: [Elecraft] Filters for K3?
Martin, The DSP filters will handle most filtering needs for signals less than S9+20 to S-9+30. However when the signals within the roofing filter passband are greater than that level, the hardware AGC will be activated and you will experience 'pumping' of the receiver gain even though you are not hearing the signals within the roofing filter passband, but outside the DSP filter passband. So, consider the signal strength of signals that you are likely to encounter during your periods of contesting and DXing, and that will tell you which filters you will need. If you want insurance against nearby strong signals, you may want a filter in the 250 Hz range as well as one in the 400 Hz range for more casual CW operation. For SSB, go for the 1.8 filter in addition to the 2.7 or 2.8 kHz filter if you will be receiving in very crowded band conditions. I personally do h\not think the 2.1 kHz filter offers much advantage over the 2.7 standard filter. If you do not have the subRX installed, changing/adding filters is not a big deal, so you may want to go with the minimum set until you get a feel for what you actually need. With the subRX installed, you must lift the subRX assembly to install filters in the main K3 board. 73, Don W3FPR Martin Schmiedel wrote: Elecrafters, i am about to order filters for my K3 and would like to hear from the group what filters i should go for. I am a ragchewer as well as a contester, ssb cw. Rarely data modes. I do weak signal work on 160/80 cw. I have 2.8khz ssb in main sub 400hz cw in main sub Should i order the 200hz 5-pole filter for their narrower bandwith or the 250hz 8-pole with steeper skirts? Add 2.1khz or 1.8khz for ssb? What is your recommendation? Should i add filters for both rx's (- diversity) ? If i go for the 5-pole filters,should they be matched by elecraft or is there a method to tweak it in the K3 ? Thanks Martin -- 73, DM4iM __ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.722 / Virus Database: 270.14.121/2589 - Release Date: 12/27/09 04:18:00 __ 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] securing K2 RF board
I typically secure PC boards with a Panavise. With the K2 RF board, the FIRST step is to place the standoffs and 2D spacer (which go to the edge of the board! This makes the Panavise pretty much useless. Other than leaving the board loose and elevating the board with spacers as suggested by W3FPR and GM4ESD on February 28, 2005 what are my options? tnx. Conway Yee, N2JWQ BTW, I am having a blast building the K2. Kudos to N6KR and 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] K3 auxillary rf input problem
When I apply a sig gen to the main antenna I get an S9 signal. Switching in the Sub RX I get S9 from both Sub and Main RX. Now if I move the sig gen to the auxillary RF input and switch to RX antenna I get a barely perceptible signal from the Sub RX. Any ideas? Howard..K2HK . HK __ 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] On making the K3 decision
Welcome to the fold Phil. I enjoyed our get together when you came over to look at my K3. I am sure that you will enjoy as much as I enjoy mine. 73 Happy New Year, -rick, K7LOG -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Hystad Sent: Sunday, December 27, 2009 9:50 AM To: Elecraft Reflector Subject: [Elecraft] On making the K3 decision Just before Christmas, I slammed down the plastic on my Apple Mac Book Pro laptop and ordered the K3. ... snip 1. The advanced SDR features of the K3. 2. The K3 performance. 3. The K3 I/F port (I want to experiment and play with DSP algorithms and other features so the ability of grabbing a real-time signal is nice to have). 4. The on-going refinement (new options), fixup, and update of the K3 by Elecraft (I like the we are not yet done attitude). 5. The deep flexibility of the K3. 6. Wayne and Eric. 7. This Elecraft Reflector. 73, phil, K7PEH __ 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] K2 Phase One Alignment Problem
I need help with the 1st phase of alignment on a K2, s/n 6780. Everything works perfectly with the exception of the Setting of the AGC Threshold voltage on U2, pin 5. I can only get a voltage of 3.62 volts with the R1 trimmer cap turned to it's max ccw. The manual calls for 3.8 volts and I assume with the trimmer set less than full ccw. With a regulated power supply set at 12.51v, I get 12.33 going into 8v regulator and 7.59 coming out. Both oscillators are running as shown by Heatkit IM-2420 digital freq ctr. X1 at 5.086 ant X2 at 3999.99. U2 Pin voltage follows:1 @3.1, 2 @3.1, 3 @ 3.1, 4 @ 0.0, 5 @ 3.62, 5 @ 3.62, 6 @ 3.62, 7 @ 3.62 and 8 @ 7.59. Perhaps this is not a problem. With all the K2's built, I wonder If I'm the only one to encounter this problem. I have examined all solder joints and redone any that were not good and bright. I find no improper installed items. I checked the trimmer R1 and it operates within it's range of 5.1K ohms. I'm going to search for a return to factory default input in case I have screwed up the controller with some wierd setting. I have a Hayko 808 on order so I have no capability of desoldering any componets at this point. Thanks for any sugestions ahead of time. Alan Latz KA9UCP __ 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] KBPF3 usefulness or effectiveness?
Hello Elecrafters, When I assembled my K3 I installed the KBPF3 module in the sub receiver figuring that I'd use the sub for SWL. However, I was thinking about moving it back to the main receiver in order to take full advantage of the synchronous AM detection feature. What I noticed though was that I can't really seem to tell if the KBPF3 makes a difference when listening to out-of-band stations. For example, tuning around tonight I came across a strong SW station on 7505 KHz. Logic tells me that the sub receiver's AF output should be significantly clearer, perhaps louder, than that of the main receiver. Going back and forth between them doesn't seem to show any differences in perceived audio quality though. So, I'm curious now if there are any tests I can perform that would demonstrate the effectiveness of the KBPF3 module. Thank you for your valued input. Vy 73 de James K2QI -- 73 de James K2QI __ 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] Filters for K3
N6XVT Karl Here is my two cents. A ragchewer. I have: 13, 6 , 2.8 , 2.1 , 500/8 pole. The DSP does the rest. Just run the K3 with the 2.8 and figure out want you want. Sent from my iPhone __ 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] Filters for K3?
Martin, I have the 2.8 for transmit which I believe gives me the best likelihood of being heard. I like low-power contesting and due to CCRs I use a stealth mystery antenna. I also have the 2.1, 1.8, 400 and 200Hz 8-pole filters. By far my favorites are the 2.1 and 400Hz because of their sharp edges and easy listening characteristics. I seldom use the 1.8 or 200Hz but they are there if I need them. I do not have a sub RX. 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] International Radio Sale
International Radio is having their annual New Year's Day sale again. I just checked their website and You can order any ONE crystal for $20.10 off the regular price on New Year's Day ONLY. http://www.inrad.net/inrad.php?mode=announce No connection with them, etc.; thought you guys would like to know. 73 and HNY! Mike, W1USN __ 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] Wrist Strap Ground
In an emergency, I've fastened a clip lead from my wristwatch strap (metal) to ground. I know it should have a series R, but any port in a storm. VE7XF __ 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] Elecraft CW Net Report for December 27th 28th, 2009
Good evening, Twenty meters was getting longer as time passed. There was also quite a bit of noise on it. I worked until I could no longer hear under the noise. However, forty meters was good until I reached the very same limit. My ears were ringing after both nets. Luckily I could sit by the fire and listen to it crackle and pop. The forecast was for rain but I only got the clouds. No precipitation or temperature change. The snow fall of four days ago remains where the sun did not sublime it. On to the lists = On 14050 kHz at 2300z: N0SS - Tom - MO - K3 - 008 AB9V - Mike - IN - K3 - 398 N0AR - Scott - MN - K2 - 4866 KL7CW - Rick - AK - KX1 - 798 W0RSR - Mike - CO - K2 - 5767 * QNI # 120 * K6PJV - Dale - CA - K3 - 1183 K4JPN - Steve - GA - K2 - 1422 K1THP - Dave - CT - K3 - 686 On 7045.5 kHz at z: AB9V - Mike - IN - K3 - 398 W0CZ - Ken - ND - K3 - 457 K6PJV - Dale - CA - K3 - 1183 W0RSR - Mike - CO - K2 - 5767 K1THP - Dave - CT - K3 - 686 * QNI # 110 * KL7CW - Rick - AK - KX1 - 798 * QNI # 190 * W8OV - Dave - TX - K3 - 3139 N7CQR - Dan - OR - K2 1010 QNI # 10! N7KRT - Jeff - TX - K2 - 5471 WC7S - Dale - WY - K2 - 4360 VE7XF - Ralph - BC - K3 - 1823 KD5ZLB - Edwin - LA - K3 - 3147 There were some partial calls which I could not dig out nor verify against my database. Sorry, hopefully the sun will keep up its recent string of sunspots and propagation will improve apace. It is time that the sun becomes active again. It has been quiet for far too long. This will be another short week. Holidays always seem to upset the normal flow; especially when they not located on the weekends. Luckily New Year's Eve and New Year's Day are not as frenzied as the days before Christmas. I went to the grocery store on the 24th and it was hectic. Not the normal friendly country store but more like one in a big city. Luckily all I needed were a few herbs to finish off my stuffing recipe. The workers all looked rather harried. I expect they will be their normal friendly selves tomorrow. Until next week (next year) stay well, 73, Kevin. KD5ONS (Net Control Operator 5th Class) - __ 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] Filters for K3?
Martin, As a general rule, before adding roofing filters I'd suggest that it would be a good idea to first operate for a while with the DSP filtering at the width of the proposed roofing filter to see whether you are comfortable with that bandwidth. In the case of SSB, my understanding is that you should narrow the bandwidth by reducing the HI cut and leaving the LO cut unchanged, not by reducing the width and leaving the FC unchanged. If you are comfortable with a narrow bandwidth but find that nearby strong signals are getting through your wider roofing filters and causing IMD or gain pumping, then you should look for the narrowest roofing filter that is the same as or wider than your preferred operating DSP bandwidth. Remember that the purpose of the roofing filters is not to set the filter bandwidth you listen with (the DSP filters do that); it is to set the bandwidth outside which strong signals will be rejected in order to give you the desired dynamic range. If you don't need a lot of dynamic range at a particular signal separation, then you don't need a roofing filter at that separation. You should also consider how you use the sub-RX before deciding whether to get two filters or only one for the main RX. In a pileup, you can use either receiver to listen to the DX and the other one to listen to the pileup (using the SPLIT button to control which VFO is used for transmit), so if you have only one roofing filter at a particular bandwidth you can decide which of the two frequencies needs it the most. Of course, if you find yourself needing the close-separation dynamic range at both frequencies, then you need both roofing filters. If you already have the 400 Hz 9-pole filters, note that the 400 Hz filter BW6 is 435 Hz and the 250 Hz BW6 is 370 Hz (look at the plots at http://www.elecraft.com/K3/K3_8_pole_plots.htm). That's a rather small difference, especially if you configure both roofing filters to switch in at the next DSP bandwidth below the roofing filter's actual BW6. If you really need narrower roofing filters because strong signals are getting through inside the 400 Hz roofing filter bandpass but outside the DSP filter bandpass, then I'd suggest you consider the 200 Hz filter unless you never operate with bandwidths as low as 200 Hz. The filter skirts probably do not matter, as the DSP filter skirts are much steeper anyway. If you need these roofing filters in both receivers, and if you will be using bandwidths that narrow during diversity receive, then you should probably purchase a pair of matched filters. There is no way for the user to tweak this - you can pretend the offsets are the same in the configuration, but if the hardware filter offsets are different enough, that won't work, especially at 200 Hz bandwidth where even small differences in the offset will make a large audible difference. On the other hand, if you are operating with a 200 Hz DSP filter bandwidth using a 200 Hz roofing filter in the main RX and a 400 Hz roofing filter in the sub-RX, that might be OK for diversity receive. My understanding, subject to correction as always, is that the offset problem during diversity receive is most audible with two 5-pole filters with slightly different offsets, rather than with one 5-pole and one 8-pole filter. Again, though, if you find yourself suffering from gain pumping in the sub-RX because of very strong signals outside the DSP filter but inside the sub-RX's roofing filter, that's when you will need a narrower roofing filter in the sub-RX, and in that case you will want to match its offset with the one in the main RX. 73, Rich VE3KI DM4IM wrote: i am about to order filters for my K3 and would like to hear from the group what filters i should go for. I am a ragchewer as well as a contester, ssb cw. Rarely data modes. I do weak signal work on 160/80 cw. I have 2.8khz ssb in main sub 400hz cw in main sub Should i order the 200hz 5-pole filter for their narrower bandwith or the 250hz 8-pole with steeper skirts? Add 2.1khz or 1.8khz for ssb? What is your recommendation? Should i add filters for both rx's (- diversity) ? If i go for the 5-pole filters,should they be matched by elecraft or is there a method to tweak it in the K3 ? __ 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] K1 deaf after KNB1 installation
On Dec 25, 2009, at 2:14 PM, Mike Morrow wrote: Seriously, though, I'll assume that you had to install the RF board J1 connector as part of your KNB1 installation process. In other words, the J1 connector was not in place earlier when your K1 was working. This occurred to me on the way to a Christmas Eve party and I kept it in mind but took a some time off from the problem to enjoy Christmas. After carefully inspecting all the parts for bridges today, cleaning up a few flux spots, etc., and taking some high resolution photos with a macro lens and my D200 (ala QST) I thought I would have to go the RF probe route. I re-installed the KNB1 and KAT1 to wait for tomorrow. The football was so bad tonight, however, I decided to take another look and then build the RF probe in the manual in preparation. As I took the K1 apart again, I was placing the KAT1 back in it's bag (I like to keep the boards and all their parts in the original marked bags when not in the K1 itself), I noticed the jumper that I removed from the KFL1-4 when installing the KAT1 and immediately slumped in my chair. Sure enough, that was it. I had removed the KAT1 and moved the RF-DET jumper to K1, but I had not replaced the J2 jumper between pins 2 and 10! This jumper connects the antenna to the input of the low pass filters on the KFL1-4. When listening for a signal, it really helps to have some RF from the antenna going in to the receiver! Once installed, the N-GEN and X2 signals (even the 1uV signal) are loud and clear. Good thing, too, because I did something wrong with the probe and my DMM is not reading! Anyway, tomorrow I can thoroughly re-calibrate my K1; both RX and TX. Thanks for the ideas, Byron KI6NUL p.s. I am using Signal Scope on my iPod touch to monitor the waveforms. It seems to do a pretty good job. __ 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] PLL Reference Oscillator Question
Don, Well everything checked out, i can't find any fault with the installation of those components. Looks like I need to order some parts, unless you can think of anything else I should check. If I haven't mentioned it, thank you for all of your help and attention. 73, Byron N6UI Don Wilhelm-4 wrote: Byron, Fine on all that, so far so good - next is to check L31, X1, R21, D18, C84 and C85 for good soldering, and make certain D16 and D17 are oriented correctly. If nothing is found awry, I would arbitrarily replace X1 as the first step and after than D16 and D17. Remember that this is just like a VXO circuit, no real 'magic', you add capacitance (that is what the varactors should be doing at lower voltages) and the frequency shifts downward. 73, Don W3FPR bviets wrote: Don, I also took the liberty to do the checks on: RP2 pin 2, and the cathodes on D16 and D17 and they all behaved like U6 pin 1: 7.4 and zero when switching between BAND+ and BAND-. 73, Byron N6UI __ 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 -- View this message in context: http://n2.nabble.com/PLL-Reference-Oscillator-Question-tp4219007p4222459.html Sent from the [K2] 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
Re: [Elecraft] K1 deaf after KNB1 installation
Byron wrote: I had removed the KAT1 and moved the RF-DET jumper to K1, but I had not replaced the J2 jumper between pins 2 and 10! Well, I'm glad it has worked out OK for you. That's the trouble with remote troubleshooting...others can't see what alterations have been made that have nothing to do with the complaint. I think that you'll really enjoy the K1. The K1 doesn't get much press anymore, but I still consider my nine-year-old K1 (sn 175) to be the best QRP rig for its size that's available. Were I in the market for a good portable QRP rig today, the K1 would still be the only one that would be satisfactory to my needs, just as it was almost a decade ago. (My K1 was ordered in June 2000, and delivered in November 2000.) Mike / KK5F __ 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 auxillary rf input problem
Switch to the Aux antenna. With Sub On, press and hold the RX Ant button. 73, ... Joe, W4TV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Howard K2HK Sent: Sunday, December 27, 2009 8:54 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 auxillary rf input problem When I apply a sig gen to the main antenna I get an S9 signal. Switching in the Sub RX I get S9 from both Sub and Main RX. Now if I move the sig gen to the auxillary RF input and switch to RX antenna I get a barely perceptible signal from the Sub RX. Any ideas? Howard..K2HK . HK __ 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] securing K2 RF board
Conway, Just my way of working, I HATE things like the Panavise, it is more of an encumbrance than a help IMHO. However, you may elect to delay mounting the 2D connectors until you need to mount the side panels - that will allow you to use your Panavise if that is your preference. With or without the 2D connectors, do not use the panavise until after you have mounted the relays - use the procedure in the manual to hold the relays in place with a book (or board or other hard surface) to allow you to flip the board over with the relays in place prior to soldering. 73, Don W3FPR Conway Yee wrote: I typically secure PC boards with a Panavise. With the K2 RF board, the FIRST step is to place the standoffs and 2D spacer (which go to the edge of the board! This makes the Panavise pretty much useless. Other than leaving the board loose and elevating the board with spacers as suggested by W3FPR and GM4ESD on February 28, 2005 what are my options? tnx. Conway Yee, N2JWQ __ 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] Help, please. K3 and PSK31
Dave I use the SignalLink USB with my K3 and it works like a charm. I use line in, line out, and PTT from the SignalLink's RJ-45. On the K3, I use a mono jack into line out, a stereo jack with the right channel disconnected into line in, and a RCA jack to PTT. I've used this with HRD and fldigi with no problems whatsoever. I chose to use line out rather than the headphone socket because I wanted to plug my headset in to the back of the rig, and I'm not one for swapping cables on a regular basis. I chose to use the SignalLink USB rather than plug directly into my computer's sound card because my computer serves multiple purposes and I wanted to keep the ham radio functionality separate from the onboard sound card. I also postulated that it would give me more RF isolation...I had been having RF problems with my computer, but in the end that wound up being due to the mouse acting like a receiver. :-( I was initially concerned that I had to crank the K3's line out volume up past the 10 that is recommended in the K3 manual to get good response on the waterfall display on HRD or fldigi. I puzzled over that one for a while but finally got the idea to turn the K3's AGC off and whoa! ... no longer had that problem! (and also had to peel my eardrums off the wall, hi hi). I get ample line out levels and thus plenty of waterfall with line out set to 10 when the AGC is off. I tend to use shift and width to narrow in on the signal I wish to receive, and AGC doesn't seem necessary but your mileage may vary. In all, I'm very happy with the SignalLink USB, and of course, the K3. 73, Dave K6DCH On Dec 27, 2009, at 1:21 PM, David Lankshear wrote: I'm getting round to trying PSK31 and later maybe some other data modes. I want to use either the stereo line out source or the headphones socket on the back panel of the K3, which is getting mighty full of connections these days. I could use some advice from the collective HI! Should I use a stereo jack with tip active, sleeve ground and ring unconnected, or should ring and tip be paralleled for use with line out? Would I be best using the line out or headphone socket (with configuration speakers+phones=yes)? Also, if anyone has experience of using the Tigertronics Signalink USB with the K3 I'd be very interested to have your comments. Grateful thanks for any assistance and a very Happy New Year to all my readers HI! 73 DaveL G3TJP __ 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 Phase One Alignment Problem
Alan, You are not the only one. The 8 volt regulator is on the low side of its spec. That will cause no problem other than you will not be able to adjust the AGC Threshold to 3.8 volts. The 3.8 volt point is only valid if the 8 volt regulator is really 8 volts. When the 8 volt supply is lower than 8 volts, the AGC Threshold can (and should) be a bit lower than 3.8 volts. Just set the AGC Threshold pot for maximum and all will be well. If you find later that you need to increase the AGC Threshold voltage (that is not likely), you can add a resistor in parallel with the resistor in RP6 between pins 3 and 4 to bring the AGC Threshold voltage a bit higher - a 10k resistor will usually suffice. 73, Don W3FPR alan latz wrote: I need help with the 1st phase of alignment on a K2, s/n 6780. Everything works perfectly with the exception of the Setting of the AGC Threshold voltage on U2, pin 5. I can only get a voltage of 3.62 volts with the R1 trimmer cap turned to it's max ccw. The manual calls for 3.8 volts and I assume with the trimmer set less than full ccw. With a regulated power supply set at 12.51v, I get 12.33 going into 8v regulator and 7.59 coming out. Both oscillators are running as shown by Heatkit IM-2420 digital freq ctr. X1 at 5.086 ant X2 at 3999.99. U2 Pin voltage follows:1 @3.1, 2 @3.1, 3 @ 3.1, 4 @ 0.0, 5 @ 3.62, 5 @ 3.62, 6 @ 3.62, 7 @ 3.62 and 8 @ 7.59. Perhaps this is not a problem. With all the K2's built, I wonder If I'm the only one to encounter this problem. __ 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 Digital Mode Settings
Joe, Don, Julian, Thanks for the responses. You've got me thinking along the right track now. 73 and Aloha, Dave, K6DCH On Dec 26, 2009, at 5:28 PM, David Herring wrote: Aloha from Hawaii! As this is my first post to this reflector, I suppose I should introduce myself...I'm Dave, K6DCH. QTH Kauai, Hawaii, and I am the satisfied owner/operator of K3 Serial # 3019. :-) I've been reading the various posts recently about how to set up for digital modes using the Data mode on the K3. I have also been reading the other posts about how to set the ACG, the RF gain, etc. A question comes to mind about this: Does the advice on dialing back the RF gain, as tendered on this reflector, apply to when one is running digital? For example, I've recently started playing with Olivia since it is noted for weak signal robustness. Would I run the rig with the RF gain wide open, or would I still dial it back to the point where the S meter just stops flickering? My first instinct is to run with the RF gain more open than that since Olivia communications succeed at signal levels below the noise floor, but I wanted to do something of a sanity check amongst other K3 users to see if I'm thinking about this right or not. I have benefited greatly by reading this reflector and appreciate everyone's contributions. All the best, Dave, K6DCH __ 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] Filters for K3?
Dear Martin, I've ordered some days ago... and received yesterday the 6Khz for AM ESSB and the 1.8K for SSB. So I installed them yesterday evening. Considering my antenna, delta loop for 40m and the huge signals received for the ex-USSR side, 59+30 up is common, the 1.8k in addition to the 2.8k is really helpful and I like the fact when moving the width knob it goes automatically from one filter to another. Just an example from yesterday as I made rx tests after installing the 1.8K, 2 x UA big guns were on 7.085 and 7.090 respectively and polluted the spectrum with very bad tuned amps with lot of splatters. With the K3 and the 8 pole filters I was able to distinguish and follow a qso on 7.088 performed by 2 M0 Hams. The shift was reduced on 1.00 and the bandwidth 1.6~1.7 with the 1.8K activated. Using the AFX for audio was also helpful. Considering my cw traffic, the 400Hz is perfect for general purpose. My actual config, all 8 poles filters Main FL1: 6K FL2: 2.8K FL3: 1.8K FL4: 400Hz Sub: FL2: 2.8 FL4: 400Hz Bst 73's Happy New Year. Philippe A65BI (F5LTB) K3#3616 Martin Schmiedel hamra...@vr-web.de 28-12-2009 4:00 Elecrafters, i am about to order filters for my K3 and would like to hear from the group what filters i should go for. I am a ragchewer as well as a contester, ssb cw. Rarely data modes. I do weak signal work on 160/80 cw. I have 2.8khz ssb in main sub 400hz cw in main sub Should i order the 200hz 5-pole filter for their narrower bandwith or the 250hz 8-pole with steeper skirts? Add 2.1khz or 1.8khz for ssb? What is your recommendation? Should i add filters for both rx's (- diversity) ? If i go for the 5-pole filters,should they be matched by elecraft or is there a method to tweak it in the K3 ? Thanks Martin -- 73, DM4iM __ 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] securing K2 RF board
I used the Panavise circuit board holder (large) even after installing the 2D connectors. Just adjust it for a light hold and it will stay in the vise ok. Even some of the components mounted REALLY close to the edge of the board had the same affect as the 2D connectors, as far as using the Panavise. Just have to adjust the clamping action to hold it lightly but securely. The springs in the jaws will allow the jaws to hold on to the board out at the end of the jaw, while touching the 2D connectors at the other end. Don I don't know how you did it without some kind of a vise. But I guess everybody has their own technique. Personally I like all the conveniences and gadgets that are available for this kind of work. The K2 was my first major assembly project. I had never done anything nearly that complex before. Not bragging but everything checked out ok the first time everytime, and I did it in about 6 days if I remember correctly. Of course that was 12 or so hours a day not counting the breaks that I had to take. I had a weeks vacation scheduled just for building the K2. That's probably not a major feat for some of the guys that built K2s, but it was a personal first and best for me as a rank beginner. Stan Rife W5EWA -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm Sent: Monday, December 28, 2009 12:10 AM To: Conway Yee Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] securing K2 RF board Conway, Just my way of working, I HATE things like the Panavise, it is more of an encumbrance than a help IMHO. However, you may elect to delay mounting the 2D connectors until you need to mount the side panels - that will allow you to use your Panavise if that is your preference. With or without the 2D connectors, do not use the panavise until after you have mounted the relays - use the procedure in the manual to hold the relays in place with a book (or board or other hard surface) to allow you to flip the board over with the relays in place prior to soldering. 73, Don W3FPR Conway Yee wrote: I typically secure PC boards with a Panavise. With the K2 RF board, the FIRST step is to place the standoffs and 2D spacer (which go to the edge of the board! This makes the Panavise pretty much useless. Other than leaving the board loose and elevating the board with spacers as suggested by W3FPR and GM4ESD on February 28, 2005 what are my options? tnx. Conway Yee, N2JWQ __ 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] K3: Three factors affecting noisiness (long)
I have been making some critical listening tests of the K3 receiver which are completely subjective and non-repeatable by anybody else, but for what it's worth I would like to share my observations. In my opinion, the three biggest factors governing the noisiness of the receiver are: 1. Headphone response 2. Receiver gain 3. AGC settings 1. Headphone response. It was almost shocking to me how different the receiver sounds with different types of headphones. It may be that most folks could solve 80% of their noisiness just by changing headphones. It seems to me that using very hi-fi headphones (or ear buds) can increase the white noise hiss above 10 kHz significantly. There is a night-and-day difference between some iPod-style ear buds and a computer headset that I own, for example. I am not here to recommend one brand over another, but simply to warn folks that a lot of what you are hearing might be eliminated just by switching to another (perhaps cheaper!) headphone or ear bud. If you can hear 12 kHz, that pair of iPod/Walkman/MP3 ear phones may be doing you more harm than good. 2. Receiver gain. Bill, W4ZV, and Barry, N1EU, have already said this well enough, but I can't stress enough how critical it is not to use too much gain. This means turning off the preamp-- which for some reason a lot of folks are very resistant to doing-- or leaving the front end attenuator on, or turning down the RF gain. If you can't imagine leaving the attenuator on (and the preamp off) all the time below 10 MHz, you are probably just the person who can most benefit by doing so. You will not lose any sensitivity. Things will get *quieter*, but they won't disappear completely. On a very related note, I once wrote about my experience with well-known QRPer and author Rick Campbell, KK7P, and though I can no longer find it in the Elecraft archives it appears to have been preserved here, on page 7 of this document: http://www.larclub.net/history/document/2000-/2003-10%20HI-Q%20October%202003.pdf 3. AGC settings. There are two pertinent parameters here: AGC THR (threshhold) and AGC SLP (slope). AGC THR, which goes from 002 to 008 (with a default of 005) has a major effect on noise level at the audio output. If you turn it down to 002, the AGC kicks in at a much lower level-- even on the noise when no signal is present-- and this tends to quiet the receiver. Tune to noise, change this parameter from 002 to 008 and listen to the difference. AGC SLP, which is adjustable from 000 to 015, with a default of 012, has a lesser effect on the noise. Lower numbers allow a wider audio dynamic range... loud signals sound louder. Higher numbers compress or hard limit the audio into a smaller dynamic range... weak signals and strong signals tend to sound equally loud. As a final thought, why wouldn't the folks who object to the noisiness leave NR on all the time at a relatively unagressive level such as F5-1? You paid for it; why not use it? I'm not saying you shouldn't pursue other remedies such as low pass filters, etc., but simply suggesting there may be a better way to use what's already there. Just a few observations. Al W6LX P. S. As a final final thought, consider that I cannot listen to MP3 recordings (or satellite radio) because of the digital artifacts in the audio that drive my psycho-acoustical brain crazy, yet which many people can't hear or don't mind. I believe this gives me a certain empathy for the folks who feel the same about the K3 audio, as well as empathy for one possible objection to my NR suggestion above. __ 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] philosophical discussion
Hi, Have been following some of the discussions here with interest. Thanks for the friendly and positive way you deal with topics of all sorts. First of all Merry Christmas and Happy New Year to the team at Elecraft and any every one else in the group. My interest in Ham Radio is varied. I like the K2 for it's frugal use of DC power. I use radios in a portable realm sometimes, in the motorhome, at ILLW and Field Days.. . of course they sometimes get plugged in at home as well lol. Mainly SSB, but my CW is improving. So like all i seek the ideal radio... a go anywhere, yet still sophisticated enough to work as a base radio. A good Rx is important to me. It needs to sound smooth to the ear for extended use. The radio also needs to be stable enough for data use Currently running a FT897 as a utility radio and an old IC 740 as a field day or ILLW radio. The cool features and portability of the 897 are great and the Rx performance of the old Icom seem to be great for ILLW and Field Days, well here in New Zealand anyway, lol. Have thought to upgrade to a more highly spec portable QRP radio that can be used with an amplifier on base or in the motorhome and of course stand alone in the field. So my question is... i guess... does anyone use a K2 or K3 in a Motorhome (is that an RV in your language)? Is it tough enough for the mobile environment? Do people use the K2 or K3 as a Field Day station or Dxpedition radio? Is a K2 suitable for use on a base station with usual long wire or yagi antennae? I know some of this topic has already appeared in various magazines etc, but would value your insights. Your time is valuable, but if you could spare me a couple of lines re your experiences with using the radios that would be great. Thanks Rob __ 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
