Re: [Elecraft] Re: OT Expert 1k Amplifier
I'm a tubes guy rather than transistors. There's something quite satisfying about the glow from a nice big 4/1000-A or similar. If I had to buy a big amp this morning it would have a nice big tube - for example from HA8UG - http://web.axelero.hu/amplitec/mypa_eng.html . My rule for amplifiers - if you can lift it off the ground then it's not big enough :-) Simon Brown, HB9DRV - Original Message - From: Stewart Baker [EMAIL PROTECTED] Many thanks to all of you who responded to my questions. Some of the replies were very comprehensive. I think I must do quite a lot more research before putting my hand in my pocket. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Disappointing delays in responses.
I ordered my K3 at 06-16 am PDT on 30/4/2007, by fax, receipt is available on my telecons bill ! I paid half up front and the balance August 29. I have sent an email to Lisa on monday this week and received no reply at all. Now I see people who ordered on May 1st have been notified of their dispatch. I've been one of the ones reading the email thinking, c'mon guys be patient, but now I'm more than a little concerned. I think its about time we knew when we are going to receive our orders please. My friends are laughing at me for paying for something so far in advance of receiving anything. I have faith in Elecraft, my K2 is one of the best pieces of gear I've ever owned, but my faith is wearing thin. Will the powers that be please keep us informed ! 73 Keith VK6XH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Problem to save my K3 configuration
Hi Simon, You are right... different computer same USB = serial converter and it is working. Thanks to all for the replies ! Thomas, DM7TN -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Simon Brown (HB9DRV) Sent: Friday, November 23, 2007 11:04 AM To: Dave G4AON; elecraft@mailman.qth.net Subject: Re: [Elecraft] Problem to save my K3 configuration I'm guessing an under-powered USB = serial converter. Simon Brown, HB9DRV - Original Message - From: Dave G4AON [EMAIL PROTECTED] On my XP Pro machine, with the latest service pack updates, I can save the config without a problem. I have proper serial ports on a desktop PC. I'm running the latest updater and firmware, MCU in K3 is ver 1.42 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 - Noise reduction gone in v1.42 firmware update?
I've just gone back to 1.41 got noise reduction back... 73 Dave, G4AON K3/100 #80 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 - too many firmware updates?
My updater has collected MCU firmware versions 1.34, 1.35, 1.36, 1.38, 1.39, 1.41 and 1.42 and I've only been using it since late Monday of this week! Hope you guys keep track of the changes, I can hardly keep up. Can we have proper change notification so we can decide which updates to take (or not) as the case may be? 73 Dave, G4AON K3/100 #80 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Computer type headsets with the K3
On my last order to my favorite computer parts vendor I added an inexpensive ($9.00) computer-type headset with mic. These turned out to be somewhat cheaply made - but not bad, with good sound quality and are reasonably comfortable. I plugged them into the K3, set the appropriate parameters and they work like a charm. Earphones and mic plugs both just plug into the jacks in the back. You setup vox gain and antivox, turn the bias on, adjust your mic gain and you're ready to go. A great setup for a very minimal investment. Audio reports are good and its easy to tweak and balance the sound of the mic. I pulled down the bass and high-end treble and added extra gain in the upper midrange. And the vox works great - better than any other radio I've tried. 73, Doug -- K0DXV K2/100 #'s 1920 5837 K3/100 #77 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 - Noise reduction gone in v1.42 firmware update?
Hi Dave, Wayne has temporarily turned NR off in the current release. It should be turned back on in the next release. 73, Eric _..._ Dave G4AON wrote: I don't know if it's something I've done, or if it's the latest firmware, but somehow I've lost my noise reduction function! Can someone with a K3 check theirs and let me know? 73 Dave, G4AON K3/100 #80 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 - Noise reduction gone in v1.42 firmware update?
Dave, I made the same observation yesterday after loading the new firmware. I press NR and get N/A in the display. 73, Doug -- K0DXV K3/100 #77 Dave G4AON wrote: I don't know if it's something I've done, or if it's the latest firmware, but somehow I've lost my noise reduction function! Can someone with a K3 check theirs and let me know? 73 Dave, G4AON K3/100 #80 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 - Noise reduction gone in v1.42 firmware update?
I don't know if it's something I've done, or if it's the latest firmware, but somehow I've lost my noise reduction function! Can someone with a K3 check theirs and let me know? 73 Dave, G4AON K3/100 #80 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] I didn't realize what you meant (was RE: WARNING! WARNING! WARNING!)
Dave just wrote ... ... as long as this wire that earths the chassis is an ESD lead (1M ohm resistor etc) - what is the problem with that? -- Hi Dave, I didn't realize what you meant by ESD lead and assumed you were tying the chassis directly to ground, rather than via a 1 Meg resistor. In that case your ESD wire sounds like a very good idea, something I'll probably do when building my K3 to avoid charges building up while it's resting on non- conductive feet or painted surfaces. (Very clever, why didn't I think of that.) Hopefully no one will make the mistake of directly grounding their K3's chassis during assembly. 73, Gary KI4GGX ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] I didn't realize what you meant (was RE: WARNING! WARNING! WARNING!)
No problem Gary and I'm glad we agree on that :-) Sorry if I didn't make that clear. To try to clarify this.. the basic premise is that anything you attach to you or your kit, while you are building, is bonded to the same point (that's important) and via a 1M ohm resistor lead. I also use dissipative tools, like screwdrivers, cutters etc etc, but that is not really necessary, as long as your body is grounded via a strap. I repeat, this ground MUST be via a 1M ohm resistor (or higher, but better to keep all resistances the same). On 23/11/07 19:58, Gary Hvizdak [EMAIL PROTECTED] sent: Dave just wrote ... ... as long as this wire that earths the chassis is an ESD lead (1M ohm resistor etc) - what is the problem with that? -- Hi Dave, I didn't realize what you meant by ESD lead and assumed you were tying the chassis directly to ground, rather than via a 1 Meg resistor. In that case your ESD wire sounds like a very good idea, something I'll probably do when building my K3 to avoid charges building up while it's resting on non- conductive feet or painted surfaces. (Very clever, why didn't I think of that.) Hopefully no one will make the mistake of directly grounding their K3's chassis during assembly. 73, Gary KI4GGX -- Those who walk bravely through life, unafraid of loss or failure, find that they very rarely lose or fail. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2: AGC Threshold Too Low?
Greetings Sarah, welcome to the hobby, and to a great radio. My AGC measurement was down a bit, not quite as far as yours, but it has been discussed here that there is some variation, and that it is not critical at that point. I re-visited my a little later on in the build process, and the numbers came up some. Don, W3FPR, has given some good explanations for why this is, I just don't recall them at the moment. A quick search of the archive; http://www.mail-archive.com/elecraft@mailman.qth.net/maillist.html Here is one example of what I found; http://www.mail-archive.com/elecraft@mailman.qth.net/msg01791.html So I don't think your measurement is at a critical level at this time. Don, or others will likely help with further information. Best of luck to you, and enjoy the build. It really is a fine radio. 73 - David Wilburn [EMAIL PROTECTED] K4DGW K2 S/N 5982 On Fri, 2007-11-23 at 12:53 -0800, Sarah K. wrote: Hi, I'm Sarah, AF6FH! I just got my license a couple weeks ago, and I'm now assembling K2# 0622, which will be my first HF radio. I started assembly on Wednesday night, and so far, everything's been going just fine. But... I'm having a little issue with setting the AGC Threshold. The instructions (pg. 48) say to set the RF GAIN control fully clockwise, measure the voltage on pin 5 of U2 on the control board, and adjust trimmer R1 for a reading of 3.80 volts. I did my voltage measurements with my own (cheap) DMM, not the internal voltmeter. My concern is that, by adjusting R1, the highest I could get the voltage to go was 3.59v, so for the moment, that's where it's set. I measured the voltage on the LM29307-8, and it has 12.23V at the input, but only 7.53V at the output. The 78M05 has 4.93V at its output. When I rotate the AF GAIN control, I get a range of 4.68V (fully counter-clockwise) to 3.59V (fully clockwise) on pin 5 of U2. My power supply is a small benchtop power supply; it's putting out 12.4V, and reports the K2 is drawing about 100mA. When I measure the input voltage across the K2 input jack, I get the same 12.4V. All of the previous checks were fine, and the following step, S-Meter Alignment, seemed to work just fine. So, my question is, do I have a problem? Should I be concerned? Thanks, Sarah AF6FH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2: AGC Threshold Too Low?
Sarah, Congratulations on getting your license and venturing to build your K2. The AGC Threshold high limit is directly proportional to the 8 volt regulator actual output - if you follow the circuit you will discover that that voltage is really the result of a 3 legged resistive voltage divider. With a full 8 volts out of the regulator, the typical highest voltage is about 3.85 to 3.9 volts depending on the exact values of the 5% tolerance resistors. Since your 8 volt regulator is near the lower edge of its tolerance range (actually a bit lower than it should be), you can set R1 to its full limit and things should work fine. I would recommend that you replace the regulator since a 5% tolerance would produce an output between 7.60 and 8.40 volts. 73, Don W3FPR Sarah K. wrote: Hi, I'm Sarah, AF6FH! I just got my license a couple weeks ago, and I'm now assembling K2# 0622, which will be my first HF radio. I started assembly on Wednesday night, and so far, everything's been going just fine. But... I'm having a little issue with setting the AGC Threshold. The instructions (pg. 48) say to set the RF GAIN control fully clockwise, measure the voltage on pin 5 of U2 on the control board, and adjust trimmer R1 for a reading of 3.80 volts. I did my voltage measurements with my own (cheap) DMM, not the internal voltmeter. My concern is that, by adjusting R1, the highest I could get the voltage to go was 3.59v, so for the moment, that's where it's set. I measured the voltage on the LM29307-8, and it has 12.23V at the input, but only 7.53V at the output. The 78M05 has 4.93V at its output. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2: AGC Threshold Too Low?
On Nov 23, 2007, at 3:31 PM, Don Wilhelm wrote: Sarah, Congratulations on getting your license and venturing to build your K2. Thanks! The AGC Threshold high limit is directly proportional to the 8 volt regulator actual output - if you follow the circuit you will discover that that voltage is really the result of a 3 legged resistive voltage divider. With a full 8 volts out of the regulator, the typical highest voltage is about 3.85 to 3.9 volts depending on the exact values of the 5% tolerance resistors. Since your 8 volt regulator is near the lower edge of its tolerance range (actually a bit lower than it should be), you can set R1 to its full limit and things should work fine. I would recommend that you replace the regulator since a 5% tolerance would produce an output between 7.60 and 8.40 volts. Thanks! I'll email [EMAIL PROTECTED] and see if they'd like to send me another one next week; I don't have one of those laying around. In the meantime, I'm proceeding with the RF board, since it sounds like it will work ok for the time being. 73, Don W3FPR Thanks again! Sarah AF6FH Sarah K. wrote: Hi, I'm Sarah, AF6FH! I just got my license a couple weeks ago, and I'm now assembling K2# 0622, which will be my first HF radio. I started assembly on Wednesday night, and so far, everything's been going just fine. But... I'm having a little issue with setting the AGC Threshold. The instructions (pg. 48) say to set the RF GAIN control fully clockwise, measure the voltage on pin 5 of U2 on the control board, and adjust trimmer R1 for a reading of 3.80 volts. I did my voltage measurements with my own (cheap) DMM, not the internal voltmeter. My concern is that, by adjusting R1, the highest I could get the voltage to go was 3.59v, so for the moment, that's where it's set. I measured the voltage on the LM29307-8, and it has 12.23V at the input, but only 7.53V at the output. The 78M05 has 4.93V at its output. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Customer Service...a defining factor in my order
Hi Dick, From my experience, this is a *very busy* time at Elecraft. My own customer service issues were handled quickly and correctly on both the K2 and now on the K3. The problems Elecraft is facing right now don't have as much to do with customer service - they're more correctly associated with birthing a champion colt [not that I'm any expert on colt birthing]. Mistakes they make now are going to be very heavily leveraged against them over a longer term. They're being cautious and being sure of what they ship. This much is stated in Eric's Shipping Status Page for the K3. I monitor this list pretty carefully and keep my postings short and infrequent [all current evidence to the contrary]. The only problems Elecraft has had with the K3 so far are two - a) Shipping on time to the original promise date b) Being on time with shipping sufficient volumes to keep the hungry hordes satiated There appear to be no _major_ technical issues with the transceiver from posting I've read on the list. This doesn't mean there aren't any at all, but it's indicative. There were supplier issues that delayed them from July to late October. At volumes such as are expected for the K3, even when it's in mass production, these always happen. At Magellan, we have them all the time with new products. So does everyone else. An Magellan ships unit volumes per year in the millions. We just start slow Shipping sufficient volume is quickly beoming a non-issue. They're improving their processes, adding brains and hands, and moving product at a pace acclerated from the early rate. There are reasons (I'm sure) that Elecraft spokespeople are careful about their statements on the web page and reflector - but most of these will be concerned with remaining competitive and keeping secrets they must. Now - the bright side. My continuing impression of Elecraft customer service and support remains very similar to that of white blood cells. This is good - it's the type of system that you can't beat or at least no one has come up with anything better. Elecraft is a small company, is customer-oriented, and has no layered bureaucracy to slow it down. If policy is made, I suspect it's between the principals and their communications skills are top rate. They don't have to go to a higher authority. They're it. I bought one of the early K3 units from the first production run. I came across a number of problems. Each and every one was handled in its entirely in only a few hours. Most of them were my fault, a few were theirs. I believe all of the Elecraft problems I found have been fixed, either in firmware loads or in the manual. Somehow, they couldn't fix me remotely. RTFM is a real good idea. Each and every word in the manual means something and should be understood and followed carefully. BTW, I'm not affiliated with and do not work for Elecraft. 73 Good Luck with your decision, matt - WA6EGJ K3 # 24 K2 # 2810 == On Fri, 23 Nov 2007 21:56:44 -0500, you wrote: I've been reading the give and take on the stress of waiting for delivery. I placed my order for a K3 yesterday, depending on a low-stress transaction. The constant flow of email messaging between the Elecraft prime movers and the customer community is refreshing. I speak with the knowledge of the opposite pole of experience: customer dis-service as I suffered in a work situation. In a nut shell, I'm just at the end of a difficult project to replace the Land Mobile Radio system of a security operation; this the result of NTIA and DoD mandates to conserve spectrum and provide for a common air interface and digital modulation. Let us just say that the products purchased were Brand M. Promises for delivery updates were broken almost daily, with maintenance of our project time line becoming a worthless exercise. Sometimes, there was no talking with the Big M. They hid behind layers of voice mail fences and constantly left us hanging. In contrast, the free flow of information, even disappointing info, is almost constant within our Elecraft customer community and between it and Elecraft. This constructively communicative culture gives me the confidence to purchase the best radio I ever hope to own. 73, Dick ka1oz ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Customer Service...a defining factor in my order
Dick Roth [EMAIL PROTECTED] wrote: I've been reading the give and take on the stress of waiting for delivery... Don't worry. With Elecraft, ship happens! 73 John K7Fd ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2: AGC Threshold Too Low?
Well, I searched around a bit and found *another* cheap DMM, which seels to be reading about 0.12 to 0.14 volts higher than the first one. Now I don't know which one to believe! :-) (Carry one watch, or three, but never two...) Now I need to find my *other* other meter, the analog one I got when I was nine years old, and see what it thinks... Sarah AF6FH On Nov 23, 2007 4:47 PM, Ron D'Eau Claire [EMAIL PROTECTED] wrote: Hi and welcome! It doesn't happen too often, but have you checked the accuracy of your cheap DMM? If you don't have anything to compare it with, you can get an idea of its condition by measuring the voltage across a fresh alkaline battery. It should read about 1.57 and 1.58 VDC. Ron AC7AC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Customer Service...a defining factor in my order
I've been reading the give and take on the stress of waiting for delivery. I placed my order for a K3 yesterday, depending on a low-stress transaction. The constant flow of email messaging between the Elecraft prime movers and the customer community is refreshing. I speak with the knowledge of the opposite pole of experience: customer dis-service as I suffered in a work situation. In a nut shell, I'm just at the end of a difficult project to replace the Land Mobile Radio system of a security operation; this the result of NTIA and DoD mandates to conserve spectrum and provide for a common air interface and digital modulation. Let us just say that the products purchased were Brand M. Promises for delivery updates were broken almost daily, with maintenance of our project time line becoming a worthless exercise. Sometimes, there was no talking with the Big M. They hid behind layers of voice mail fences and constantly left us hanging. In contrast, the free flow of information, even disappointing info, is almost constant within our Elecraft customer community and between it and Elecraft. This constructively communicative culture gives me the confidence to purchase the best radio I ever hope to own. 73, Dick ka1oz -- They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety. --Benjamin Franklin 1775 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Disappointing delays in responses.
At 03:00 AM 11/23/2007, Keith Bainbridge wrote: I have faith in Elecraft, my K2 is one of the best pieces of gear I've ever owned, but my faith is wearing thin. Oh Ye of Little Faith. Question not the wisdom of those on high. 73, Thom - k3hrn ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Customer Service...a defining factor in my order
On Fri, 23 Nov 2007, Don Rasmussen wrote: Thats okay, I put a second order last week so I'll have something to complain about come February. Which year were you thinking of Don? Thom,EIEIO Email, Internet, Electronic Information Officer www.baltimorehon.com/Home of the Baltimore Lexicon www.tlchost.net/hosting/ Web Hosting as low as 3.49/month ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Tuning knob revisit (Gil WA5YKK)
To those who dare - I'm in the middle of a mess, attempting to rework my whole QTH shack upstairs in the big house, and in so doing, I enjoy firing up the Icom 756 PRO I have alongside the K2 which is now doing a better job of SWL than the Icom. The only real problem I run into is that the Icom tuning knob has some weight to it, along with a spinner dimple, which makes it easier to tune, and faster than the K2. I'm wondering if it makes any sense to attempt to find an FT-900 knob, or just figure out a way to add some weight to the k2 knob? And, yes, I've already looked over the Yaesu website, no joy at this point. My prime problem is that I find it to be a little disconcerting to tune the heater (the Icom is a room heater!), faster and sometimes easier to find a frequency and/or station than the K2 does, so just regard me as spoiled at this point. If anyone has any ideas about how to find a speed demon knob, let me know, since I'd really like to have the K2 become as physically able as the Jap rig is! Presently, it's astounding that I've soldered together a rig that is at least equal to, or outperforms a commercially-made rig, with a fraction of the amperage consumption. (Eventually, I see the day when my whole ham rig situation will be dying Kachina, fading Icom, and full steam Elecraft - and probably go SK for good, with the K2 or K3 going strong, still!) Tnx, 73's, enjoy Xmas coming up! Gil WA5YKK (50 years at this game, as of Jan. '08!) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Customer Service...a defining factor in my order
My cw buddy John quipped: Don't worry. With Elecraft, ship happens! ... But John, just last night I told the XYL I'm still waiting for my K3!. That's the truth - no ship! Thats okay, I put a second order last week so I'll have something to complain about come February. I enjoy having something to look forward to in the near future every bit as much as complaining about it's delayed arrival. ;-) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K2: AGC Threshold Too Low?
Hi and welcome! It doesn't happen too often, but have you checked the accuracy of your cheap DMM? If you don't have anything to compare it with, you can get an idea of its condition by measuring the voltage across a fresh alkaline battery. It should read about 1.57 and 1.58 VDC. Ron AC7AC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Four Band HF Antenna for portable use
December QST has an article on a four band HF antenna for portable use. The antenna uses Valor Pro-Am helical whip antennas. Would anyone on the list know where one might purchase these whip antennas? Brad Bartlett, KA4KNK K-2 S/N 3615 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: K2: AGC Threshold Too Low?
Hi All, I'm Sarah, AF6FH! I just got my license a couple weeks ago, and I'm now assembling K2# 0622, which will be my first HF radio. I started assembly on Wednesday night, and so far, everything's been going just fine. Just to clarify, that should be K2 #06322... and it took me *three* tries to type it right, even with the sticker in front of me. But I really *am* AF6FH... I just looked it up again to be sure! :-) Sigh. Sarah, AF6FH, afraid to type my serial number again, LOL! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] I didn't realize what you meant (was RE: WARNING! WARNING! WAR...
Al, AFAIK, you are correct - the large value resistor is primarily there to protect the person wearing the wrist strap. However, I do not like to do any electronic or electrical work on a directly grounded and conductive surface - period. IMHO, there is too much of a chance to create a short to ground with an open lead or an accidentally placed tool in contact with a conductive work surface. Even though we usually do not work on high voltage equipment frequently anymore (which is where those practices originated), it is still good practice since low voltage power (in particular batteries) can produce a lot of damage from high current levels - I have seen several cases of molten metal flying around as a result of a shorted low voltage/high current source. Think about it a bit - there is a good (and similar) reason for the instruction to ALWAYS remove the grounded lead from an automotive battery first (even if it seems non-intuitive at first) - if one terminal is left grounded, the tool removing the 'hot' terminal can short to the chassis and cause much harm and injury. Don't think that small batteries are harmless either - I once observed a 12 volt pack of AA sized NiCAD batteries melt wire and burst when subjected to a direct short - it was a destructive test in a controlled lab environment, but it convinced me that such things are not harmless. 73, Don W3FPR [EMAIL PROTECTED] wrote: Sorry if I missed something here, and I'm not trying to confuse issues. But, after 40 years in the industry working with the most sensitive of semiconductor devices, the only requirement for a series resistance that I've seen used is in the devices like a wrist strap that were attached to the operators body. The purpose being to protect them from possible contact with power systems that could place the operator in the HV ground path. The 500K or larger resistor was usually adequate to provide a non-lethal warning of somethin amiss. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2: AGC Threshold Too Low?
Thanks to everyone who replied! Wow, help sure comes in a hurry on this list! The general consensus appears to be that I'm ok for the time being (yay!), so I'm going to go ahead and move on. I did test with the internal voltmeter as well, and it reports 3.5V. Special thanks to VE3TIX who asked if my DMM batteries are fresh... no, they weren't! I replaced the battery and the display is a lot easier to read now, thanks! Sadly, it still reports 3.59V. Although I am starting to wonder about the general advisability of relying on a meter that came free with my oscilloscope. :-) Also, in the process of fiddling with things, I discovered that my little bench power supply is very noisy! I was using my Yaesu VX-7R as an ad-hoc RF probe; K4DGW sent me a link to a message from Don Wilhelm in the list archives which got me thinking about noise, so I grabbed the Yaesu to try to use as an RF probe, and discovered lots of noise on 7MHz, 10MHz, and probably everywhere else (!), which went away completely when I switched off the power supply! I rigged a bunch of D batteries for 12V and powered the K2 with that instead; it worked fine, the noise went away, but the AGC reading still wouldn't go over 3.59v. But I think I'm going to need a power supply... any recommendations? I can probably try to stop by HRO tomorrow. Oh, and if anyone has a recommendation for a high quality but fairly inexpensive DMM, I'd be interested to hear about that too... Thanks again everyone, Sarah AF6FH On Fri, 2007-11-23 at 12:53 -0800, Sarah K. wrote: Hi, I'm Sarah, AF6FH! I just got my license a couple weeks ago, and I'm now assembling K2# 0622, which will be my first HF radio. I started assembly on Wednesday night, and so far, everything's been going just fine. But... I'm having a little issue with setting the AGC Threshold. The instructions (pg. 48) say to set the RF GAIN control fully clockwise, measure the voltage on pin 5 of U2 on the control board, and adjust trimmer R1 for a reading of 3.80 volts. I did my voltage measurements with my own (cheap) DMM, not the internal voltmeter. My concern is that, by adjusting R1, the highest I could get the voltage to go was 3.59v, so for the moment, that's where it's set. I measured the voltage on the LM29307-8, and it has 12.23V at the input, but only 7.53V at the output. The 78M05 has 4.93V at its output. When I rotate the AF GAIN control, I get a range of 4.68V (fully counter-clockwise) to 3.59V (fully clockwise) on pin 5 of U2. My power supply is a small benchtop power supply; it's putting out 12.4V, and reports the K2 is drawing about 100mA. When I measure the input voltage across the K2 input jack, I get the same 12.4V. All of the previous checks were fine, and the following step, S-Meter Alignment, seemed to work just fine. So, my question is, do I have a problem? Should I be concerned? Thanks, Sarah AF6FH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 - Possible Show Stoppers
What fan noise? During long runs with lots of transmitting during SS I had to stick my hand behind the radio to see if the fans were on. They were, and the top of the radio stayed cool. You couldn't hear them at all. I can't answer your question about key-up spikes, but my dipole ends 25' directly above my head and I haven't noticed any effects of RF in the transmitted audio. I'm only running 100W so that may not mean anything. Craig NZ0R K3/100 #25 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Joe Sent: Friday, November 23, 2007 3:37 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 - Possible Show Stoppers I am a SSB rag-chew operator and very interested in the K3. Have had many of the rigs on the market in the last few years and like the features of the K3. I have 3 questions that may be show stoppers for me. 1. Fan noise: How loud are the fans, what rig do they compare to. In a long SSB transmission which of the 4 speeds will be engaged? The fan noise in some rigs is not acceptable to me, like the Icom 706 or Yaesu Mark-V 200 watt version. A lot of rigs are ok, like the IC-756 PRO, TS-870, IC-775 or Mark-V Field. 2. RF in Transmitted Audio: My shack is not in an ideal location, it is on a second floor with my beam antenna over my head, so sometimes I have issues with RF getting into the transmitted audio. Some radios work fine (with some work) like Icom Yaesu, and some have problems like Ten-Tec. With this said, has anyone tried the K3 in a high RF environment? 3. SSB Transmit Key-up Spikes: Some solid-state amps do not like key- up spikes. An example, I have owned two Yaesu FT-920s and my solid- state amp would not tolerate the key-up spikes in them. Thanks for your answers, Joe N9VX ___ No banners. No pop-ups. No kidding. Make My Way your home on the Web - http://www.myway.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 variable roofing filters
And a ballpark of when you think they may be available. Seems likely it would be first half of next year, with the rest of this year being busy getting K3's out the door. - David Wilburn [EMAIL PROTECTED] K4DGW K2 S/N 5982 On Fri, 2007-11-23 at 10:36 -0500, [EMAIL PROTECTED] wrote: One of the variable-passband filters we've been considering is one for SSB, with a range of about 1.4 to 2.2 kHz. It would have 5 poles rather than 8, but I'm sure it would work well in combination with the I.F. DSP. The MCU would automatically dial in the crystal filter bandwidth to match the DSP. This would be a slot-saver for those want multiple SSB RX bandwidths. Once the CW variable-passband filter was also ready, you might have: FL1 6.0 kHz FL2 2.7 or 2.8 kHz FL3 1.4-2.2 kHz (SSB variable passband crystal filter) FL4 0.4-0.8 kHz (CW variable passband crystal filter) FL5 200 Hz Wayne, Can you give me a rough projected price range that these two variable roofing filters might sell for so that I can decide whether to buy fixed filters now or wait for the variables... 73, Paul ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2: AGC Threshold Too Low?
Hi, I'm Sarah, AF6FH! I just got my license a couple weeks ago, and I'm now assembling K2# 0622, which will be my first HF radio. I started assembly on Wednesday night, and so far, everything's been going just fine. But... I'm having a little issue with setting the AGC Threshold. The instructions (pg. 48) say to set the RF GAIN control fully clockwise, measure the voltage on pin 5 of U2 on the control board, and adjust trimmer R1 for a reading of 3.80 volts. I did my voltage measurements with my own (cheap) DMM, not the internal voltmeter. My concern is that, by adjusting R1, the highest I could get the voltage to go was 3.59v, so for the moment, that's where it's set. I measured the voltage on the LM29307-8, and it has 12.23V at the input, but only 7.53V at the output. The 78M05 has 4.93V at its output. When I rotate the AF GAIN control, I get a range of 4.68V (fully counter-clockwise) to 3.59V (fully clockwise) on pin 5 of U2. My power supply is a small benchtop power supply; it's putting out 12.4V, and reports the K2 is drawing about 100mA. When I measure the input voltage across the K2 input jack, I get the same 12.4V. All of the previous checks were fine, and the following step, S-Meter Alignment, seemed to work just fine. So, my question is, do I have a problem? Should I be concerned? Thanks, Sarah AF6FH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] For sale K2/100
Hi All I have a Fully loaded assembled K2/100 for sale. This radio is new built for sale and consists of the following: K2 - radio s/n 5363KSSB - sideband adapter 2.6KhzKAF2 - Audio filterKNB2 - noise blankerK160RX - 160 meter Receive antenna inputKPA100 - 100 watt amplifierQRP Lid with KAT2 - 20 watt antenna tunerAlso includes the VCO shield mod kit installed in the K2 This radio could be built up as a K2 pair by purchasing a EC2 and mounting the KPA100 in the EC2 and installing the QRP lid on the K2or you could just swap the lids for QRO or QRP operation I have built all of the Elecraft products many times. This is the 16th K2 I gave built $1400 plus shipping for all above Check Or money order only. $1250 plus shipping for K2/100 only (no QRP lid or antenna tuner) $1050 plus shipping for QRP version (no KPA100)___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] For Sale 4 band KX1 with tuner
I have new assembled KX1 For sale with the following options: KX1 - Radio KXB3080 - 30 and 80 meter module upgrade for 4 bands KXAT1 - internal antenna tuner KXPD1 - paddle kit The price for all of the above from Elecraft is $522 I am selling for $500 plus shipping check or money order only Thanks Don Brown KD5NDB ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: OT Expert 1k Amplifier
Hi Stuart I know Ron GW3YDX (vinecom.co.uk) regularly uses the 1k amp in contests etc so has first hand experience. I use my K2 occasionally with my ACOM 1000 very satisfactorily, this amp is a masterpiece (all 5 reviews in Eham.net) but I sometimes wonder about the continuing supply of replacement tubes? 73 de Robert K2/100 #5219 -- Many thanks to all of you who responded to my questions. Some of the replies were very comprehensive. I think I must do quite a lot more research before putting my hand in my pocket. -- ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Computer-based PSK31 with K3
Has anyone tried to use DgiPan or WinPSK with the K3? I'm in Data Mode A, PTT set to DTR and RTS, input to line-in. Clicking transmit on either program - the K3 will not go into transmit mode. Both programs configured to use RTS and/or DTR to key the rig. Ocasionally, I see the transmit LED flash for perhaps a tenth of a second. 73, Doug -- K0DXV K3/100 #77 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 - too many firmware updates?
Bill My point is there is no mention in the release notes of removing the noise reduction between versions 1.41 and 1.42! 73 Dave, G4AON K3/100 firmware 1.41, serial 80 === up on the top of the updater there is a screen under help firmware release notes , with a historyof what changes hope this help bill ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 - too many firmware updates?
up on the top of the updater there is a screen under help firmware release notes , with a historyof what changes hope this help bill At 10:26 AM 11/23/2007, Dave G4AON wrote: My updater has collected MCU firmware versions 1.34, 1.35, 1.36, 1.38, 1.39, 1.41 and 1.42 and I've only been using it since late Monday of this week! Hope you guys keep track of the changes, I can hardly keep up. Can we have proper change notification so we can decide which updates to take (or not) as the case may be? 73 Dave, G4AON K3/100 #80 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] N2CQ QRP Contest Calendar: Nov 24 - Dec 23, 2007
~ N2CQ QRP CONTEST CALENDAR November 24 - December 23, 2007 ~ 80 METER FOXHUNT (CW) *** QRP Contest *** Each Tuesday to Mar 25 9 PM to 10:29 PM Eastern Time USA Info: http://www.qrpfoxhunt.org/ ~ 40 METER FOXHUNT (CW) *** QRP Contest *** Each Thursday to March 27 9 PM to 10:29 PM Eastern Time USA Info: http://www.qrpfoxhunt.org/ ~ CQ World Wide DX Contest (CW) ... QRP Category! Nov 24, z to Nov 25, 2400z Rules: http://www.cqww.com/ ~ MQFD Monthly Sprint (CW/PH/Digital) *** QRP Contest *** Nov 24, 1800z to 2200z Rules: http://w2agn.net/mqfdsprint.html ~ SKCC Weekend Sprint (Straight Key CW) ... QRP Category Nov 25, z to z Rules: http://www.skccgroup.com/sprint/wes/wknd-sprint-rules.html ~ QRP ARCI Topband CW SSB Sprint *** QRP CONTEST *** Nov 29, z to 0600z Rules: http://www.qrparci.org/ ~ ARRL 160 meter Contest (CW) ... QRP Category Nov 30, 2200z to Dec 2, 1600z Rules: http://www.arrl.org/contests/calendar.html?year=2007 ~ ARRL 160 meter Contest (CW) ... QRP Category Nov 30, 2200z to Dec 2, 1600z Rules: http://www.arrl.org/contests/calendar.html?year=2007 ~ TARA RTTY Mêlée ... 150W category Dec 1, z to 2400z Rules: http://www.n2ty.org/seasons/tara_melee_rules.html ~ Wake-Up! QRP Sprint (CW) *** QRP Contest *** Dec 01, 0400z to 0600z Rules: http://www.qrp.ru ~ TOPS Activity 80 Meter Contest (CW) ... QRP Category Dec 1, 1800z to Dec 2, 1800z Rules: http://procwclub.yo6ex.ro/tacrules.htm ~ Adventure Radio Spartan Sprint (CW) *** QRP Contest *** Dec 4, 0200z to 0400z (First Monday 9 PM EST) Rules: http://www.arsqrp.com/ ~ ARRL 10 Meter Contest (CW/SSB) ... QRP Category Dec 8, z to Dec 9, 2400z Rules: http://www.arrl.org/contests/calendar.html?year=2007 ~ UBA Low Band Winter Contest (CW/SSB/RTTY/PSK) .. QRP Category Dec 8, 1700z to 2100z and Dec 9, 0500z to 0900z Rules: http://www.uba.be/hf_contests/pdf/uba_winter_en.pdf ~ SKCC Sprint (Straight Key CW) ... QRP Awards Dec 12, 0100z to 0300z Rules: http://skccgroup.com/sprint/sprint-rules.htm ~ NAQCC Straight Key/Bug Sprint (CW) *** QRP Contest *** EST: Dec 11, 8:30 PM to 10:30 PM UTC: Dec 12, 0130Z to 0330Z Rules: http://www.arm-tek.net/~yoel/contests.html ~ MDXA PSK-31/63 DeathMatch ... QRP Category Dec 15, z to Dec 16, 2400z Rules: http://www.mdxa1.org/deathmatch.html ~ Croatian CW Contest (CW) ... QRP Category Dec 15, 1400z to Dec 16, 1400z Rules: http://www.sk3bg.se/contest/9acwc.htm ~ QRP ARCI: Holiday Spirits Homebrew Sprint (CW) *** QRP Contest *** Dec 16, 2000z to 2359z Rules: http://www.qrparci.org ~ SKCC Weekend Sprint (Straight Key CW) ... QRP Category Dec 23, z to z Rules: http://www.skccgroup.com/sprint/wes/wknd-sprint-rules.html ~ Thanks to SM3CER, WA7BNM, N0AX(ARRL), N2APB, WB3AAL and others for assistance in compiling this calendar. If you wish to subscribe to the Calendar, send an e-mail to [EMAIL PROTECTED] Please forward the contest info you sponsor to [EMAIL PROTECTED] and we will post it and give it more publicity. Anyone may use this N2CQ QRP Contest Calendar for your website, newsletter, e-mail list or other media as you choose. (Include a credit to the source of this material of course.) 72 de Ken Newman - N2CQ N2CQ QRP Contest Calendar Links: http://www.n3epa.org/Pages/Contest/contest.htm http://www.amqrp.org/contesting/contesting.html ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] ESD recommendation
I have had that esd wrist strap and mat for years and the K3 was an obvious place to start using them... bill At 07:51 AM 11/23/2007, Julian G4ILO wrote: On Nov 23, 2007 12:48 PM, Dave G4AON [EMAIL PROTECTED] wrote: You must use anti-static precautions. It's foolish to assemble a $2500 radio only to damage it for the sake of perhaps $25 worth of anti-static products. Even I, notorious tightwad that I am, have forked out on an anti-static mat and wrist strap. I've never used one in the past. But I figured that if I zap something on a K3 board, which is not user repairable (at least, not by me) it would be a much bigger deal than if I zapped a discrete component when building my K2. -- Julian, G4ILO K2 s/n: 392 K3 s/n: ??? G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2/K3 with Icom PC-PW1 amp
Has anyone interfaced their rig to the Icom solid state amp? It looks like the KRC2 should do the trick but I would like to hear from someone who has been there before prior to ordering one. Jim N1NK K2 s/n 2580 K3 s/n TBD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] ESD recommendation
On Nov 23, 2007 12:48 PM, Dave G4AON [EMAIL PROTECTED] wrote: You must use anti-static precautions. It's foolish to assemble a $2500 radio only to damage it for the sake of perhaps $25 worth of anti-static products. Even I, notorious tightwad that I am, have forked out on an anti-static mat and wrist strap. I've never used one in the past. But I figured that if I zap something on a K3 board, which is not user repairable (at least, not by me) it would be a much bigger deal than if I zapped a discrete component when building my K2. -- Julian, G4ILO K2 s/n: 392 K3 s/n: ??? G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] OT: ESD pad/mat and wrist strap
Greg (and anyone else): I got mine from Tiger Direct (suggested to me by W3FPR). The mat I got is sold out now, but here is another one (plus a wrist strap link). ESD mat http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=1952934CatId=1802 Wrist strap http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=1216697CatId=1802 Pretty cheap insurance policy, if you ask me. de Doug KR2Q ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: OT Expert 1k Amplifier
Simon Brown (HB9DRV) I'm a tubes guy rather than transistors. There's something quite satisfying about the glow from a nice big 4/1000-A or similar. If I had to buy a big amp this morning it would have a nice big tube - for example from HA8UG - http://web.axelero.hu/amplitec/mypa_eng.html . My rule for amplifiers - if you can lift it off the ground then it's not big enough :-) - Don't forget those beautiful keying monitors next to the plate transformer, I mean the ones that glow blue :-) 73, Geoff GM4ESD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KPA100 R 19 R20 question
Werner, The resistors might have different characteristics even though their ohmic value is the same and they might look to be identical. Some years ago it was reported on the List that the KPA100's output was low on some bands, and the cause was believed to be that the manufacturer of R19 and R20 had switched to supplying resistors that exhibited significant inductance. I believe that a mod kit was subsequently released which included 'non-inductive' versions of R19 and R20. It is possible that you have some of both types in your collection. Unless you have the test equipment which is capable of measuring the inductance of a small coil (nH) shunted by a 3.6 ohm resistor, you could measure the series resonant frequency of each 'resistor' and a capacitor, always using the same capacitor, my guess is that a 3300 pF capacitor would be a suitable value for HF resonance. Obviously those resistors which are 'inductive' would resonate at a lower frequency than those resistors which are supposedly not. A crude measurement but adequate for the purpose I would think. It is possible to deal with the resistors already installed without removing them, but very much easier to remove them - but ONLY if you are having power output problems with your KPA100 on some bands!! The truth of the matter is that all of the six 2w resistors are involved in the feedback networks and are suspects in any power 'droop' problem, and you have to isolate each part when doing on-board measurements. My KPA100 purchased in 2003 came with inductive resistors, but the gods were kind and its 'power droop' occurs outside of the ham bands. 73, Geoff GM4ESD - Original Message - From: Dr. Werner Furlan [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Friday, November 23, 2007 5:58 AM Subject: [Elecraft] KPA100 R 19 R20 question while I am waiting for a replacement of J4 from Scott, I am looking at the parts left after finishing the KPA100. I can see 2 pairs of R19 R20 resistors in the box. They look identical to those on the board. I had the KPA100 upgrade kit, so 1 pair is clear, there must have been another pair packed to my KPA100 in double quantity. The reason was probably a replacement for problems with the formal type of resistor. Now my question: when sorting the parts, I was not aware of this possible problem and maybe mixed the different parts, so I am not sure if I built in the correct resistor. From looking at them I cannot tell any difference. They look exactly the same. Can I find a difference whith any measurement to identify if I have by accident built in the wrong pair? 73! de Werner OE9FWV -- Whenever you find that you are on the side of the majority, it is time to reform. -- Mark Twain Email powered by Pegasus Mail free at http://www.pmail.com Homepage: http://www.qsl.net/oe9fwv/ Fone +43 5522 75013 Fax +43 820 555 85 2621 Mobile +43 664 6340014 Elecraft K2 #5203 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] SPE/ACOM and other microprocessor type amps
Hello, I too have followed the story of SPE and Tokyo Hypower amps with interest. I have been the owner of an ACOM 1000 for about 3 years now and had great service until...last Sept, the amp was sitting in standby mode waiting for 3B7 to show up on 20m; xyl and I watching news in next room and very loud, KAPOW from shack. I found the 1000 lights flashing and error code in the window. Tried a reset and another extremely loud pop. I contacted Will at ACOM via Skype and he said to send him all the lines of error code. There were about 7 lines of such. Well, it turns out that even with the code, they cannot decipher what happened and now the amp has to be sent to the US for service. From CX that means at least $100 in overweight baggage on the airline (amp goes in pelican case) then Fedex from MIA to factory and back, then another frequent flyer ride to CX. This is on top on any repair bill. So, now my favorite amp is my trusty 30L-1 which I can fix myself. If one lives in the US or has easy (cheap) access to local distributor then I would certainly take hard look at the SPE, it looks like a real winner, but for me, no more microprocessor controlled amps. My next one will be probably be a Command Tech or QRO HF-2500. Just some thoughts from someone who lives outside the US, aint' easy being dx, huh? 73 Tom CX7TT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] KPA100 R 19 R20 question
Werner, The inductive resistors are light-blue/grey. I replaced mine as well. They should have a reddish-brown colour now. Also a capacitor C31 should be replaced (was 0.033uF and should be 0.22 uF) 73's, Everet PA2KW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Problem to save my K3 configuration
Hi Thomas, glad to hear that is now working. You are right... different computer same USB = serial converter and it is working. I had problems with an older version of the Elecraft firmware loader, which turned out not to be the application but the USB/RS232 drivers. I had used an other USB/RS232 interface with my Apple Power Book (dual boot using Boot Camp Windows XP Professional) a few months ago, and the old and new USB to serial drivers conflicted, which took a while to figure out. Everything looked OK in the device manager, for example, but programs like HyperTerminal (Microsoft) failed when using the pseudo COM port. It might be worth while to remove all the USB to Serial drivers on the computer which is causing problems, reboot, and then do a fresh install of the drivers for your adapter (if possible check the Internet for any updates), before inserting the USB to RS 232 adapter. Also the standard installer for USB drivers in Windows is not the best, so you may have better results with the installer software which came with the adapter. Just a thought... vy 73 de toby -- DD5FZ (ex 4n6fz, dj7mgq, dg5mgq, dd5fz) K2/10 #885 K2/100 #3248 K3/100 #67 DOK C12, BCC, DL-QRP-AG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Problem to save my K3 configuration
I'm guessing an under-powered USB = serial converter. Simon Brown, HB9DRV - Original Message - From: Dave G4AON [EMAIL PROTECTED] On my XP Pro machine, with the latest service pack updates, I can save the config without a problem. I have proper serial ports on a desktop PC. I'm running the latest updater and firmware, MCU in K3 is ver 1.42 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Problem to save my K3 configuration
Hi Matt, Thanks for the reply and especially for the config file. My computer configuration looks quite similar to yours. I was able to write your configuration into my K3 !!! Only two (or three...) warnings about an illegal value... maybe my K3 has not the same modules... After that i tried to backup the configuration which failed again. I don't have any idea what my problem is. Maybe i should check it with a different computer (with a RS232 interface) to be shure it's not a problem with my K3. Thomas, DM7TN -Original Message- From: Matt Zilmer [mailto:[EMAIL PROTECTED] Sent: Friday, November 23, 2007 7:01 AM To: Thomas Norff Subject: Re: [Elecraft] Problem to save my K3 configuration Hi Thomas, I'm using the same rev of the Downloader and just saved my K3's config without incident. I've attached a copy of that file in case it might useful to you. The only way I might be able to help you is to tell you the serial port setup here, o/s, etc. You're right - it doesn't sound like an interface problem. However it might be your hw platform, o/s, or even a device driver. K3: s/n 24; MCU 1.41, DSP 1.39 COM Port: 4, 4800 BPS COM port is running via USBSER.SYS on a Keyspan USA-19HS USB-to-serial adapter. Computer: HP DV2000T laptop, Centrino Duo T2400, 1.83 GHz o/s: Microsoft XP-Pro, SP2 If I were you, I'd reboot the computer and not load any applications, then retry the config save. matt, WA6EGJ == On Fri, 23 Nov 2007 05:00:42 +0100, you wrote: Has anyone seen this error? Using the K3 Firmware Update Downloader (Version 1.0.11.21) i get always the same problem with the function save K3 configuration as under the tab configuration. The saving proccess stops unpredictable. In a small portsniffer output i can see that the response from the K3 is alright referring to the format. But some characters are wrong, which seems to be the reason why the software stops the process. Inside the stored file you can find *error reading EEPROM at My K3 has the current MCU and DSP software installed and i've checked it with all available baud-rates. Based on the fact that my previous firmware upgrades were successful i would assume it is not a problem with the interface. Any comments ? Thanks, Thomas, DM7TN s/n 78 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Tuning knob revisit (Gil WA5YKK)
Gil, The FT-900 knob is no longer available. You can add an FT-900 (or ft100 or FT847) tire to your stock K2 knob and add the Elecraft finger dimple too. The stock K2 knob has adequate weight if the drag is adjusted properly, but the sharp edge is a problem for me - the rubber tire helps dramatically - I don't care for the finger dimple, but many folks seem to like them. 73, Don W3FPR Gil Gibbs wrote: To those who dare - I'm in the middle of a mess, attempting to rework my whole QTH shack upstairs in the big house, and in so doing, I enjoy firing up the Icom 756 PRO I have alongside the K2 which is now doing a better job of SWL than the Icom. The only real problem I run into is that the Icom tuning knob has some weight to it, along with a spinner dimple, which makes it easier to tune, and faster than the K2. I'm wondering if it makes any sense to attempt to find an FT-900 knob, or just figure out a way to add some weight to the k2 knob? And, yes, I've already looked over the Yaesu website, no joy at this point. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2: AGC Threshold Too Low?
Welcome welcome Sarah! Although you are starting at a time when signals are low, stay on 40 meters at night and you cannot go wrong. You have chosen the best possible place to start your hobby, with the Elecraft group and there are people here to help you with most anything outside of typing your own emails. ;-) YL's and XYL's are rare and in high demand, congrats on your new ticket! Don wb8yqj/6 [Elecraft] Re: K2: AGC Threshold Too Low? Sarah K sarah at sakelley.org Fri Nov 23 19:14:26 EST 2007 Hi All, I'm Sarah, AF6FH! I just got my license a couple weeks ago, and I'm now assembling K2# 0622, which will be my first HF radio. I started assembly on Wednesday night, and so far, everything's been going just fine. Just to clarify, that should be K2 #06322... and it took me *three* tries to type it right, even with the sticker in front of me. But I really *am* AF6FH... I just looked it up again to be sure! :-) Sigh. Sarah, AF6FH, afraid to type my serial number again, LOL! ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: ESD pad/mat and wrist strap
On Fri, 23 Nov 2007 08:43:36 -0500, you wrote: Greg (and anyone else): I got mine from Tiger Direct (suggested to me by W3FPR). The mat I got is sold out now, but here is another one (plus a wrist strap link). ESD mat http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=1952934CatId=1802 Wrist strap http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=1216697CatId=1802 Pretty cheap insurance policy, if you ask me. de Doug KR2Q [snip] I thought it such a good idea I just ordered both. Thanks for the info! Tom, N5GE - SWOT 3537 They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety. --Benjamin Franklin 1775 http://www.n5ge.com http://www.eQSL.cc/Member.cfm?N5GE ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Test only
I've had problems with spam filters - no response necessary, thanks. David G4CWB ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] ESD recommendation
Yes you do have to go to the effort of ESD projection - without it, you may just get lucky and not blow a component - but then you've just waited months for your K3 and why risk it? ESD stuff (like everything else) over in the US is so damn cheap anyway. I can't suggest where to buy - Radio Shack perhaps - just checked http://www.radioshack.com/product/index.jsp?productId=2102871cp=sr=1origk w=statickw=staticparentPage=search Good God , that's $25 - £12 pounds at current rate - I paid £25 pounds just for an ESD mat! I might just move to US. You need * an ESD mat - to place parts on etc while you build * a ESD wrist strap - to ensure you aren't developing a charge * a ESD wire - to connect the rig chassis to your bonding point (some may say this isn't absolutely necessary) Do NOT skimp and I'd say buy rather than make - if you do make, it is VERY important to have a 1M ohm resistor in series with the wrist strap - in fact , all the commercial ESD stuff has a 1M ohm resistor in the lines. This doesn't stop it bleeding of a static charge, but it does stop you getting 110v across your chest by accident and becoming a SK before you've put the K3 together. All the lines must run to one bounding point which is earthed - the mains supply earth is ok, even the one in the plug, it doesn't need to be an RF earth. Do check you mains earth is good, but then that's standard safety anyway. You can buy mains plug ESB bonding plugs. If you have a soldering iron (not required for K3) and you using it on components - a K2 for instance, do check it has an earthed tip and try to use same socket or plug for you bonding point. I modified my Antex temp controlled iron case and added 4 banana sockets to it, all bonded to the incoming mails lead. On 23/11/07 11:52, Greg - N4CC [EMAIL PROTECTED] sent: Hello all -- Like everyone else I'm looking forward to a K3 showing up sometime before I become a SK...hi hi...(third production run...ugh)...but I'm trying to get prepared so everything will be ready to go when the kit gets here. I don't have any special ESD protection and was wondering what others have done to comply with appropriate ESD protectionand where you have obtained wrist straps, ESD mats, etc. I live in FL and normally static is not a particular problem...(lightning -- yeslow humidity and static -- no) It's not like a northern dry winter where you can walk across the carpet and draw a spark from a door knob...so I'm wondering if I even have to go to the effort...Interested in your thoughts...73 de Greg-N4CC -- Why should I fear death? If I am, death is not. If death is, I am not. Why should I fear that which cannot exist when I do? -Epicurus, philosopher (c. 341-270 BCE) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Problem to save my K3 configuration
Thomas On my XP Pro machine, with the latest service pack updates, I can save the config without a problem. I have proper serial ports on a desktop PC. I'm running the latest updater and firmware, MCU in K3 is ver 1.42 73 Dave, G4AON K3/100 #80 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KPA100 R 19 R20 question
hi Gary, On 23 Nov 2007 at 2:04, Gary Hvizdak wrote: I don’t know answer off hand and would need to do quite a bit of research to provide you with the correct answer. Having not yet built my KPA100 the only thing I can tell you is that some years ago one of Elecraft’s suppliers changed their manufacturing process which caused the resistors to be inductive. I seem to recall Elecraft offered free replacements for a while. That’s about all that I know. Instead of telling you anything incorrect, I’ll just leave it at that and leave the rest to an expert like W3FPR in the morning (after his coffee). Until then, you probably can find an app note about it on Elecraft’s website. thank you for your answer. that's what I knew before. What I don't know is if the the inductive resistors can be visually identified? I have 3 pairs of R19 and R20, one pair built in, 2 pairs are spare parts, but I don't know if they are all from the good lot or not. They look exactly identical. 73! de Werner OE9FWV -- Hard work has a future payoff. Laziness pays off now. PGP-Key: http://www.qsl.net/oe9fwv/furlan.asc Fone +43 5522 75013 Fax +43 820 555 85 2621 Mobile +43 664 6340014 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] ESD recommendation
Hello all -- Like everyone else I'm looking forward to a K3 showing up sometime before I become a SK...hi hi...(third production run...ugh)...but I'm trying to get prepared so everything will be ready to go when the kit gets here. I don't have any special ESD protection and was wondering what others have done to comply with appropriate ESD protectionand where you have obtained wrist straps, ESD mats, etc. I live in FL and normally static is not a particular problem...(lightning -- yeslow humidity and static -- no) It's not like a northern dry winter where you can walk across the carpet and draw a spark from a door knob...so I'm wondering if I even have to go to the effort...Interested in your thoughts...73 de Greg-N4CC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] ESD recommendation
You must use anti-static precautions. It's foolish to assemble a $2500 radio only to damage it for the sake of perhaps $25 worth of anti-static products. Mats and wrist straps must be tested for continuity before use, a pin through the mat will usually give a good enough connection for a multi-meter. I used an anti-static bench mat approx 500mm x 350mm and a wrist strap. Both were bought in 2001 from a UK mail order company when I assembled by K2, cost from memory somewhere in the region of $30. You need some good screwdrivers and plenty of light, one slip and you could cause costly damage surface mounted components... 73 Dave, G4AON K3/100 #80 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: KPA100 resistors
hi Dave, On 23 Nov 2007 at 11:55, DaveL wrote: There is a lot of information on the Elecraft website, but basically grey coloured resistors are bad. Brown resistors are good. that's exactly the information I needed. So I have 3 good pairs. No need to change anything. I can give away 2 of them for free ;-) 73! de Werner OE9FWV -- Pas de panique, Ca sera pire. PGP-Key: http://www.qsl.net/oe9fwv/furlan.asc Fone +43 5522 75013 Fax +43 820 555 85 2621 Mobile +43 664 6340014 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KPA100 R 19 R20 question
Werner, If they all look the same, they are all good. The old inductive resistors had a light-blue body, the new ones have a red-brown body color. I have mentioned many times that body color is not a good means of identifying components, but for KPA100 R19 and R20, it is good for now - if Elecraft changes the manufacturer of those parts, then the body color is likely to change, but that has not happened yet with those parts. You have some spares (but you will not likely need them) 73, Don W3FPR. Dr. Werner Furlan wrote: hi Gary, On 23 Nov 2007 at 2:04, Gary Hvizdak wrote: I don’t know answer off hand and would need to do quite a bit of research to provide you with the correct answer. Having not yet built my KPA100 the only thing I can tell you is that some years ago one of Elecraft’s suppliers changed their manufacturing process which caused the resistors to be inductive. I seem to recall Elecraft offered free replacements for a while. That’s about all that I know. Instead of telling you anything incorrect, I’ll just leave it at that and leave the rest to an expert like W3FPR in the morning (after his coffee). Until then, you probably can find an app note about it on Elecraft’s website. thank you for your answer. that's what I knew before. What I don't know is if the the inductive resistors can be visually identified? I have 3 pairs of R19 and R20, one pair built in, 2 pairs are spare parts, but I don't know if they are all from the good lot or not. They look exactly identical. 73! de Werner OE9FWV -- Hard work has a future payoff. Laziness pays off now. PGP-Key: http://www.qsl.net/oe9fwv/furlan.asc Fone +43 5522 75013 Fax +43 820 555 85 2621 Mobile +43 664 6340014 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 variable roofing filters
One of the variable-passband filters we've been considering is one for SSB, with a range of about 1.4 to 2.2 kHz. It would have 5 poles rather than 8, but I'm sure it would work well in combination with the I.F. DSP. The MCU would automatically dial in the crystal filter bandwidth to match the DSP. This would be a slot-saver for those want multiple SSB RX bandwidths. Once the CW variable-passband filter was also ready, you might have: FL1 6.0 kHz FL2 2.7 or 2.8 kHz FL3 1.4-2.2 kHz (SSB variable passband crystal filter) FL4 0.4-0.8 kHz (CW variable passband crystal filter) FL5 200 Hz Wayne, Can you give me a rough projected price range that these two variable roofing filters might sell for so that I can decide whether to buy fixed filters now or wait for the variables... 73, Paul ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 - Noise reduction gone in v1.42 firmware update?
On Nov 23, 2007 4:04 PM, Dave G4AON [EMAIL PROTECTED] wrote: I've just gone back to 1.41 got noise reduction back... It's not called the bleeding edge for nothing, Dave. :) (OK, I'm just jealous because you've got yours and I haven't...) -- Julian, G4ILO K2 s/n: 392 K3 s/n: ??? G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K1-4 40 30 20 15 $400
Hi All, I apologize for the confusion. This is a fully functional K1 Radio that I am offering not a work in progress. Some of the pictures I provide were of the inside of the radio during an audio jack replacement which was mistaken for an unfinished radio. Price for the below configuration fully functioning K1-4 40 30 20 15 with extra 2-band module 80 17 is $400 shipped U.S.A. Finger Dimple for K1 K1-4 Four-Band 5W CW Transceiver K1 Backlight Mod Kit K1 Internal Automatic Antenna Tuner Additional Two-Band Module K1 Noise Blanker email [EMAIL PROTECTED] 73 Bob W7WO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K1-4 40 30 20 15 $400
The K1 has been SOLD... Thanks to all who replied. 73 Bob W7WO Hi All, I apologize for the confusion. This is a fully functional K1 Radio that I am offering not a work in progress. Some of the pictures I provide were of the inside of the radio during an audio jack replacement which was mistaken for an unfinished radio. Price for the below configuration fully functioning K1-4 40 30 20 15 with extra 2-band module 80 17 is $400 shipped U.S.A. Finger Dimple for K1 K1-4 Four-Band 5W CW Transceiver K1 Backlight Mod Kit K1 Internal Automatic Antenna Tuner Additional Two-Band Module K1 Noise Blanker email [EMAIL PROTECTED] 73 Bob W7WO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
WARNING! WARNING! WARNING! (was [Elecraft] ESD recommendation)
At 07:21:12 EST 2007 on Fri Nov 23, David Ferrington, M0XDF wrote ... You need : : * a ESD wire - to connect the rig chassis to your bonding point (some may say this isn't absolutely necessary) -- All, YOU ABSOLUTELY POSITIVELY SHOULD NOT GROUND THE CHASSIS while assembling your K3 or anything else that has ESD sensitive components! Doing so would defeat the entire purpose of the ESD mat, which is to gently, safely, and gradually dissipate a charge so that it doesn't cause damage. If you directly ground the chassis and you or someone else were to accidentally touch the rig in a vulnerable spot (while not wearing a wrist strap), then the resulting surge discharging that person's charge to ground through the rig's vulnerable circuitry would most certainly fry something! While your rig is only contacting your ESD mat via an insulator such as its rubber feet or a painted surface, it will build up a charge of its own. This is perfectly okay provided the eventual discharge paths for such a charge are either (gradually) via the mat to ground, or (gradually) through you via your wrist strap to ground. BTW, ESD mats should routinely be cleaned with an appropriate product, because otherwise the buildup of contaminants (such as oils from your skin and rosin splashes) will defeat the mat's dissipative/conductive properties. DO NOT USE A HOME REMEDY (SUCH AS RUBBING ALCOHOL) TO CLEAN YOUR MAT AS THAT WILL ALSO AFFECT YOUR MAT'S PERFORMANCE! FYI, I work in an Aerospace manufacturing facility where I routinely handle individual circuit cards that cost between $10,000 and $15,000. The above comments are derived from the mandatory training I receive at this facility. A quick Google of ESD yielded 12,800,000 hits, while a search for the entire phrase esd mat cleaner yielded 230 hits, so there's clearly a wealth of info on this subject available online. 73, Gary KI4GGX Melbourne, Florida K2 #4067 / K3 #000??? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: OT Expert 1k Amplifier
G'day, | I use my K2 occasionally with my ACOM 1000 very satisfactorily, this | amp is a masterpiece (all 5 reviews in Eham.net) but I sometimes wonder | | about the continuing supply of replacement tubes? | | 73 de Robert K2/100 #5219 Apart from the K2 overshoot on SSB my Acom 1000 ticks over at 4-600W max. Given the built in protection for the tube I would expect a long lifetime for it. Nevertheless, maybe now is the time to invest in a spare. With the K3 I expect it will be treated more kindly. Regards, Mike VP8NO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 - too many firmware updates?
A recent email to the reflector, but Elecraft, asked to please perform all updates, and mentioned that changes were going to be occurring to NR. http://www.mail-archive.com/elecraft@mailman.qth.net/msg43892.html - David Wilburn [EMAIL PROTECTED] K4DGW K2 S/N 5982 On Fri, 2007-11-23 at 17:18 +, Dave G4AON wrote: Bill My point is there is no mention in the release notes of removing the noise reduction between versions 1.41 and 1.42! 73 Dave, G4AON K3/100 firmware 1.41, serial 80 === up on the top of the updater there is a screen under help firmware release notes , with a historyof what changes hope this help bill ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2: AGC Threshold Too Low?
On Nov 23, 2007 3:53 PM, Sarah K. [EMAIL PROTECTED] wrote: I'm Sarah, AF6FH! I just got my license a couple weeks ago, and I'm now assembling K2# 0622, which will be my first HF radio. I started assembly on Wednesday night, and so far, everything's been going just fine. Congrats, and welcome! I did my voltage measurements with my own (cheap) DMM, not the internal voltmeter. Maybe a silly question, but is the DMM's batteries fresh? If it has the half-dead cheap old batteries that it came with, the reading may be off a bit too much. A sanity check of comparing the measurement to ones done using the internal voltmeter could help detect if that is the problem if you don't have a fresh battery on hand. I measured the voltage on the LM29307-8, and it has 12.23V at the input, but only 7.53V at the output. The 78M05 has 4.93V at its output. I would expect closer to 8V out of the LM2930T-8 but it is with spec (7.5-8.5V from the LM2930 datasheet), and the input voltage is fine (should only need 8.6 or 9V input to work correctly. -Michael, VE3TIX ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 - Possible Show Stoppers
I am a SSB rag-chew operator and very interested in the K3. Have had many of the rigs on the market in the last few years and like the features of the K3. I have 3 questions that may be show stoppers for me. 1. Fan noise: How loud are the fans, what rig do they compare to. In a long SSB transmission which of the 4 speeds will be engaged? The fan noise in some rigs is not acceptable to me, like the Icom 706 or Yaesu Mark-V 200 watt version. A lot of rigs are ok, like the IC-756 PRO, TS-870, IC-775 or Mark-V Field. 2. RF in Transmitted Audio: My shack is not in an ideal location, it is on a second floor with my beam antenna over my head, so sometimes I have issues with RF getting into the transmitted audio. Some radios work fine (with some work) like Icom Yaesu, and some have problems like Ten-Tec. With this said, has anyone tried the K3 in a high RF environment? 3. SSB Transmit Key-up Spikes: Some solid-state amps do not like key- up spikes. An example, I have owned two Yaesu FT-920s and my solid- state amp would not tolerate the key-up spikes in them. Thanks for your answers, Joe N9VX ___ No banners. No pop-ups. No kidding. Make My Way your home on the Web - http://www.myway.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] I didn't realize what you meant (was RE: WARNING! WARNING! WAR...
In a message dated 11/23/2007 12:13:55 P.M. Pacific Standard Time, [EMAIL PROTECTED] writes: No problem Gary and I'm glad we agree on that :-) Sorry if I didn't make that clear. To try to clarify this.. the basic premise is that anything you attach to you or your kit, while you are building, is bonded to the same point (that's important) and via a 1M ohm resistor lead. I also use dissipative tools, like screwdrivers, cutters etc etc, but that is not really necessary, as long as your body is grounded via a strap. I repeat, this ground MUST be via a 1M ohm resistor (or higher, but better to keep all resistances the same). +++ Sorry if I missed something here, and I'm not trying to confuse issues. But, after 40 years in the industry working with the most sensitive of semiconductor devices, the only requirement for a series resistance that I've seen used is in the devices like a wrist strap that were attached to the operators body. The purpose being to protect them from possible contact with power systems that could place the operator in the HV ground path. The 500K or larger resistor was usually adequate to provide a non-lethal warning of somethin amiss. I don't disagree that a big resistor to ground will dissipate a static charge, but most of us would prefer a total ground on the chassis. Otherwise, as I understand it, you still run the risk of setting up a voltage differential that could damage parts. The reasoning is that a static charge will dissipate, being of limited source. But an AC voltage delta between the tip of an Iron and an earth ground could be several volts, depending on the ground point and power system setup. I've seen as much as 40 volts in normal household wiring. The addition of a high value resistance in that circuit could raise the voltage substatially, AND it is a non dissipative source that could fry more than a small semi. The rule I have always applied at home and industrially is: 1) use isolation transformer where possible, 2) use a GFCI protected circuit, 3) establish a common ground point that has the best possible path back to the house ground.( That is usually at the service entrance and should be tested to make sure it works ) 4) use a ground tester to make sure the ground is not open at the outlet. (Testers are cheap and available in most hardware stores) . 5) Make sure the grounds from common point to work surface and chassis are firmly connected - alligator clips always pop off. 6) Wear your wrist strap and avoid synthetic or wool clothing. 7) last and very important - always use an ohmmeter to test the wrist strap and other ground jumpers to make sure they are working. A lot of good hardware can be damaged by an open ground wire. A good OP can be hurt by a bad wrist strap. With the constant flexing of the wrist cables,etc, the wires will break internally and not be noticed, there's no antenna or speaker attached to it to tell you something's wrong. I've done a lot of residential testing in the course of helping run an RFI committee for the local club. We have found many RFI cases caused by bad grounds In home's I've visited over 30 years, I've found about 1 in 10 homes is poorly grounded at the service entrance, and about 1 in 10 has open grounds on outlets. Many result from electrical wiring done by the homeowner without the help of a licensed electrician or city inspector. Judging from the Hams I have met over the years, the SKs I have known, and a lot of the traffic I see on these lists, I have come to the opinion we have many in our midst to with disputable sense of values is some areas. If you can't afford a little coin on Ohmmeters, new wrist straps, GFCIs and a visit from the power company (usually free), you probably don't have adequate insurance to be messing with this stuff. n This isn't where you want to play on the cheap. nuff said' Al WA6VNN **Check out AOL's list of 2007's hottest products. (http://money.aol.com/special/hot-products-2007?NCID=aoltop000301) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
