Re: [Elecraft] Win 7 K3 and P3 Utilities
Thanks, that kind of worked. The issue only occurs now if I repeatedly pole the communications test on the K3 utility. I haven't gotten any further issues with IE9 though. Probably still some issue, but at least the utility works the first few times. I'll continue looking into this. Chuck, KE9UW aka Jack, BMW Motorcycles BMWMOA #224 From: Ron D'Eau Claire [r...@cobi.biz] Sent: Monday, August 27, 2012 5:55 PM To: hawley, charles j jr; elecraft@mailman.qth.net Subject: RE: [Elecraft] Win 7 K3 and P3 Utilities I'm not familiar with the source code, but the obvious common element of I.E. and the Utility is that they both access the internet. I'd suspect some of the shared program files used by both for that purpose and begin with reinstalling I.E. In my work I need to look at HTML as displayed in the various popular browsers, so I have Chrome, Firefox and I.E. all running on my workstation. Every once in a while an update to one of them will cause trouble to that browser or others that triggers those messages. Reinstalling the last one updated has always worked for me. 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of hawley, charles j jr Sent: Monday, August 27, 2012 2:52 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Win 7 K3 and P3 Utilities I keep getting an intermittent This program has stopped working and MS is looking for a solution with this utility and also with IE when I open it. Any ideas? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KX3: No RX - SWR 25 to 1
Hello Fred, During the time when your reception is OFF, would be the best time to check whether or not the LO is working, i.e. during the time when the fault exists. It would also be the best time to check whether the LO's output is reaching the mixers if the LO is working. 73, Geoff LX2AO On August 27, 2012 4:04 PM, Fred Carvalho wrote: snip However during my tests, the reception went back on for a while. It does this !!! I will try to check for the LO when it returns to make sure I have both situtions checked. snip __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KX3: No RX - SWR 25 to 1
The LO is not working Geoffrey. I would like to have it back on, so I could check in both situations. However, when I first got the radio I remember hearing a strong signal from the LO in my main transceiver's receiver. Now it is not the case. I have been well supported by Elecraft and it is been decided that the best would be sending the radio to them. Thanks you guys for the inputs. Fred 2012/8/28 Geoffrey Mackenzie-Kennedy lx...@pt.lu Hello Fred, During the time when your reception is OFF, would be the best time to check whether or not the LO is working, i.e. during the time when the fault exists. It would also be the best time to check whether the LO's output is reaching the mixers if the LO is working. 73, Geoff LX2AO On August 27, 2012 4:04 PM, Fred Carvalho wrote: snip However during my tests, the reception went back on for a while. It does this !!! I will try to check for the LO when it returns to make sure I have both situtions checked. snip -- Fred C Carvalho - PY2XB T30PY T30SIX Coming in October Support this DXpedition : http://www.mdxc.org/t30py/ [image: T30PY-3D.png] __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] A123 news
Here's the skinny on A123's http://www.greencarreports.com/news/1078364_battery-startup-a123-rescue-plan-chinese-firm-to-own-80 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Year of the K2
Anyone remember what year the K2 was introduced? I'm thinking somewhere around 2000. de Bill-w7kxb. . __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Year of the K2
January, 1999. Matt Zilmer Consultant - Product Management Dept. Magellan Navigation / MiTAC Digital Corp. Tel: (909) 394-6052 Cell: (909) 730-6552 In status quo voluntas non sufficit -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Harris Sent: Tuesday, August 28, 2012 8:26 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Year of the K2 Anyone remember what year the K2 was introduced? I'm thinking somewhere around 2000. de Bill-w7kxb. . __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Year of the K2
Hi Bill, We shipped the first batch of K2s in early 1999. 73, Wayne N6KR On Aug 28, 2012, at 8:25 AM, Bill Harris wrote: Anyone remember what year the K2 was introduced? I'm thinking somewhere around 2000. de Bill-w7kxb. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 speaker audio gone!
I've lost audio from both the internal speaker in the K3, and from the SPKRS output jack on the rear panel. At the end of the the first week of using a new NESCAF audio filter (which drives my speaker) with the K3, I changed bands, listened briefly on CW, with the NESCAF filter in the circuit. I then changed to SSB, and because the NESCAF filter was adjusted for a very narrow audio bandwidth, I decided to switch it out of the circuit, while the K3 was delivering audio, at a comfortable listening level.. The audio filter was driven from the SPKRS jack on the back of the K3, using a stereo plug, with one channel floating. The SPKRS jack was CONFIGured as SPKRS = 1. A front panel toggle switch on the filter panel turns off the power to the NESCAF filter, and re-routes the speaker audio connection from the filter output, to the K3 output directly. I had done this often, for the first week of operations. This time, however, I briefly saw a HI CURR indication on the front panel of the K3, and then my speaker audio vanished. Unplugging all connections from the rear panel SPKRS jack, and the front panel PHONES jack, no longer allows the K3's internal speaker to produce audio. Nothing I tried would result in any audio from the external speaker, after connecting that speaker to either of the phono jacks that were tied to the rear SPKRS jack, through the stereo plug. The INPUT jack on the SCAF filter (to which the K3's SPKRS jack was connected) passes through an isolating capacitor, then a 27K resistor, before being connected to the chip in the audio filter. Resetting SPRKS = 2, in the CONFIG menu, had no effect on producing audio in the external, or internal speaker. I still have audio at the PHONES jack on the front panel, so I can still use the K3. It subsequently accounted for 380 QSOs in the NAQP CW contest, providing it usual flawless performance. I still have audio at the PHONES jack on the rear panel, as well. My theory (and Gary at Elecraft Service agrees it might be the cause) is that the audio chip in the K3 didn't like the abrupt change of load impedance, from 27K (approx.) to infinity, to 8 ohms, while it was delivering audio.. I've since soldered a 15K resistor across the input jack of the audio filter, and will do likewise for any other audio filters I encounter, and use. Puzzling, huh? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 speaker audio gone!
I've lost audio from both the internal speaker in the K3, and from the SPKRS output jack on the rear panel. At the end of the the first week of using a new NESCAF audio filter (which drives my speaker) with the K3, I changed bands, listened briefly on CW, with the NESCAF filter in the circuit. I then changed to SSB, and because the NESCAF filter was adjusted for a very narrow audio bandwidth, I decided to switch it out of the circuit, while the K3 was delivering audio, at a comfortable listening level.. The audio filter was driven from the SPKRS jack on the back of the K3, using a stereo plug, with one channel floating. The SPKRS jack was CONFIGured as SPKRS = 1. A front panel toggle switch on the filter panel turns off the power to the NESCAF filter, and re-routes the speaker audio connection from the filter output, to the K3 output directly. I had done this often, for the first week of operations. This time, however, I briefly saw a HI CURR indication on the front panel of the K3, and then my speaker audio vanished. Unplugging all connections from the rear panel SPKRS jack, and the front panel PHONES jack, no longer allows the K3's internal speaker to produce audio. Nothing I tried would result in any audio from the external speaker, after connecting that speaker to either of the phono jacks that were tied to the rear SPKRS jack, through the stereo plug. The INPUT jack on the SCAF filter (to which the K3's SPKRS jack was connected) passes through an isolating capacitor, then a 27K resistor, before being connected to the chip in the audio filter. Resetting SPRKS = 2, in the CONFIG menu, had no effect on producing audio in the external, or internal speaker. I still have audio at the PHONES jack on the front panel, so I can still use the K3. It subsequently accounted for 380 QSOs in the NAQP CW contest, providing it usual flawless performance. I still have audio at the PHONES jack on the rear panel, as well. My theory (and Gary at Elecraft Service agrees it might be the cause) is that the audio chip in the K3 didn't like the abrupt change of load impedance, from 27K (approx.) to infinity, to 8 ohms, while it was delivering audio.. I've since soldered a 15K resistor across the input jack of the audio filter, and will do likewise for any other audio filters I encounter, and use. Puzzling, huh? 73 de VE3GFN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Vedr: Year of the K2
When will you come up with an replacement? An all solder kit like the K2 but wiith newer techology? :-) Also, an cross between the KX1 and KX3, named of course KX2 with all solder components, CW and SSB, with built-in tuner etc :-) Martin Storli LA8OKA Oslo, Norway ARCTICPEAK's Radio pages! http://www.arcticpeak.com/radio.htm Fra: Wayne Burdick n...@elecraft.com Til: Bill Harris w7...@msn.com Kopi: elecraft@mailman.qth.net elecraft@mailman.qth.net Sendt: Tirsdag, 28. august 2012 17.55 Emne: Re: [Elecraft] Year of the K2 Hi Bill, We shipped the first batch of K2s in early 1999. 73, Wayne N6KR On Aug 28, 2012, at 8:25 AM, Bill Harris wrote: Anyone remember what year the K2 was introduced? I'm thinking somewhere around 2000. de Bill-w7kxb. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net/ Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 speaker audio gone!
Actually kind of scary about that choice of chip. There must be something more robust since we have numerous audio devices around that last when abused. Sent from my iPhone On Aug 28, 2012, at 11:14 AM, Mike Goldstein mg...@pathcom.com wrote: I've lost audio from both the internal speaker in the K3, and from the SPKRS output jack on the rear panel. At the end of the the first week of using a new NESCAF audio filter (which drives my speaker) with the K3, I changed bands, listened briefly on CW, with the NESCAF filter in the circuit. I then changed to SSB, and because the NESCAF filter was adjusted for a very narrow audio bandwidth, I decided to switch it out of the circuit, while the K3 was delivering audio, at a comfortable listening level.. The audio filter was driven from the SPKRS jack on the back of the K3, using a stereo plug, with one channel floating. The SPKRS jack was CONFIGured as SPKRS = 1. A front panel toggle switch on the filter panel turns off the power to the NESCAF filter, and re-routes the speaker audio connection from the filter output, to the K3 output directly. I had done this often, for the first week of operations. This time, however, I briefly saw a HI CURR indication on the front panel of the K3, and then my speaker audio vanished. Unplugging all connections from the rear panel SPKRS jack, and the front panel PHONES jack, no longer allows the K3's internal speaker to produce audio. Nothing I tried would result in any audio from the external speaker, after connecting that speaker to either of the phono jacks that were tied to the rear SPKRS jack, through the stereo plug. The INPUT jack on the SCAF filter (to which the K3's SPKRS jack was connected) passes through an isolating capacitor, then a 27K resistor, before being connected to the chip in the audio filter. Resetting SPRKS = 2, in the CONFIG menu, had no effect on producing audio in the external, or internal speaker. I still have audio at the PHONES jack on the front panel, so I can still use the K3. It subsequently accounted for 380 QSOs in the NAQP CW contest, providing it usual flawless performance. I still have audio at the PHONES jack on the rear panel, as well. My theory (and Gary at Elecraft Service agrees it might be the cause) is that the audio chip in the K3 didn't like the abrupt change of load impedance, from 27K (approx.) to infinity, to 8 ohms, while it was delivering audio.. I've since soldered a 15K resistor across the input jack of the audio filter, and will do likewise for any other audio filters I encounter, and use. Puzzling, huh? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 speaker audio gone!
I have blown the speaker amp twice, in two different radios, by using a speaker with AGC OFF. POOF! Gone before you can react by turning down the audio. The factory guys report that they have been unable to duplicate the problem. Unless you are an EXPERT solderer, replacing the speaker amp chip is best done by the factory. The job will run about $125 with shipping, maybe a little less if you ship only the DSP Board. I don't use the speaker amp any more. I still think there is a transient susceptibility problem in that circuitry that they have been unable to find. Dave Hachadorian, K6LL Big Bear Lake, California -Original Message- From: Mike Goldstein Sent: Tuesday, August 28, 2012 9:07 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 speaker audio gone! I've lost audio from both the internal speaker in the K3, and from the SPKRS output jack on the rear panel. At the end of the the first week of using a new NESCAF audio filter (which drives my speaker) with the K3, I changed bands, listened briefly on CW, with the NESCAF filter in the circuit. I then changed to SSB, and because the NESCAF filter was adjusted for a very narrow audio bandwidth, I decided to switch it out of the circuit, while the K3 was delivering audio, at a comfortable listening level.. The audio filter was driven from the SPKRS jack on the back of the K3, using a stereo plug, with one channel floating. The SPKRS jack was CONFIGured as SPKRS = 1. A front panel toggle switch on the filter panel turns off the power to the NESCAF filter, and re-routes the speaker audio connection from the filter output, to the K3 output directly. I had done this often, for the first week of operations. This time, however, I briefly saw a HI CURR indication on the front panel of the K3, and then my speaker audio vanished. Unplugging all connections from the rear panel SPKRS jack, and the front panel PHONES jack, no longer allows the K3's internal speaker to produce audio. Nothing I tried would result in any audio from the external speaker, after connecting that speaker to either of the phono jacks that were tied to the rear SPKRS jack, through the stereo plug. The INPUT jack on the SCAF filter (to which the K3's SPKRS jack was connected) passes through an isolating capacitor, then a 27K resistor, before being connected to the chip in the audio filter. Resetting SPRKS = 2, in the CONFIG menu, had no effect on producing audio in the external, or internal speaker. I still have audio at the PHONES jack on the front panel, so I can still use the K3. It subsequently accounted for 380 QSOs in the NAQP CW contest, providing it usual flawless performance. I still have audio at the PHONES jack on the rear panel, as well. My theory (and Gary at Elecraft Service agrees it might be the cause) is that the audio chip in the K3 didn't like the abrupt change of load impedance, from 27K (approx.) to infinity, to 8 ohms, while it was delivering audio.. I've since soldered a 15K resistor across the input jack of the audio filter, and will do likewise for any other audio filters I encounter, and use. Puzzling, huh? 73 de VE3GFN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 speaker audio gone!
Dave, Do you have the AF amp current-limiting mod in place? The parts for this mod are installed on the RF board. They've been in production for quite some time, and we can send them to you on request. With the limiter installed, we've seen near-zero problems with the AF amp IC. 73, Wayne N6KR On Aug 28, 2012, at 10:25 AM, Dave Hachadorian wrote: I have blown the speaker amp twice, in two different radios, by using a speaker with AGC OFF. POOF! Gone before you can react by turning down the audio. The factory guys report that they have been unable to duplicate the problem. Unless you are an EXPERT solderer, replacing the speaker amp chip is best done by the factory. The job will run about $125 with shipping, maybe a little less if you ship only the DSP Board. I don't use the speaker amp any more. I still think there is a transient susceptibility problem in that circuitry that they have been unable to find. Dave Hachadorian, K6LL Big Bear Lake, California -Original Message- From: Mike Goldstein Sent: Tuesday, August 28, 2012 9:07 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 speaker audio gone! I've lost audio from both the internal speaker in the K3, and from the SPKRS output jack on the rear panel. At the end of the the first week of using a new NESCAF audio filter (which drives my speaker) with the K3, I changed bands, listened briefly on CW, with the NESCAF filter in the circuit. I then changed to SSB, and because the NESCAF filter was adjusted for a very narrow audio bandwidth, I decided to switch it out of the circuit, while the K3 was delivering audio, at a comfortable listening level.. The audio filter was driven from the SPKRS jack on the back of the K3, using a stereo plug, with one channel floating. The SPKRS jack was CONFIGured as SPKRS = 1. A front panel toggle switch on the filter panel turns off the power to the NESCAF filter, and re-routes the speaker audio connection from the filter output, to the K3 output directly. I had done this often, for the first week of operations. This time, however, I briefly saw a HI CURR indication on the front panel of the K3, and then my speaker audio vanished. Unplugging all connections from the rear panel SPKRS jack, and the front panel PHONES jack, no longer allows the K3's internal speaker to produce audio. Nothing I tried would result in any audio from the external speaker, after connecting that speaker to either of the phono jacks that were tied to the rear SPKRS jack, through the stereo plug. The INPUT jack on the SCAF filter (to which the K3's SPKRS jack was connected) passes through an isolating capacitor, then a 27K resistor, before being connected to the chip in the audio filter. Resetting SPRKS = 2, in the CONFIG menu, had no effect on producing audio in the external, or internal speaker. I still have audio at the PHONES jack on the front panel, so I can still use the K3. It subsequently accounted for 380 QSOs in the NAQP CW contest, providing it usual flawless performance. I still have audio at the PHONES jack on the rear panel, as well. My theory (and Gary at Elecraft Service agrees it might be the cause) is that the audio chip in the K3 didn't like the abrupt change of load impedance, from 27K (approx.) to infinity, to 8 ohms, while it was delivering audio.. I've since soldered a 15K resistor across the input jack of the audio filter, and will do likewise for any other audio filters I encounter, and use. Puzzling, huh? 73 de VE3GFN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 speaker audio gone!
Was there a serial # that included the current limiting? Sent from my iPhone On Aug 28, 2012, at 1:18 PM, Wayne Burdick n...@elecraft.com wrote: Dave, Do you have the AF amp current-limiting mod in place? The parts for this mod are installed on the RF board. They've been in production for quite some time, and we can send them to you on request. With the limiter installed, we've seen near-zero problems with the AF amp IC. 73, Wayne N6KR On Aug 28, 2012, at 10:25 AM, Dave Hachadorian wrote: I have blown the speaker amp twice, in two different radios, by using a speaker with AGC OFF. POOF! Gone before you can react by turning down the audio. The factory guys report that they have been unable to duplicate the problem. Unless you are an EXPERT solderer, replacing the speaker amp chip is best done by the factory. The job will run about $125 with shipping, maybe a little less if you ship only the DSP Board. I don't use the speaker amp any more. I still think there is a transient susceptibility problem in that circuitry that they have been unable to find. Dave Hachadorian, K6LL Big Bear Lake, California -Original Message- From: Mike Goldstein Sent: Tuesday, August 28, 2012 9:07 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 speaker audio gone! I've lost audio from both the internal speaker in the K3, and from the SPKRS output jack on the rear panel. At the end of the the first week of using a new NESCAF audio filter (which drives my speaker) with the K3, I changed bands, listened briefly on CW, with the NESCAF filter in the circuit. I then changed to SSB, and because the NESCAF filter was adjusted for a very narrow audio bandwidth, I decided to switch it out of the circuit, while the K3 was delivering audio, at a comfortable listening level.. The audio filter was driven from the SPKRS jack on the back of the K3, using a stereo plug, with one channel floating. The SPKRS jack was CONFIGured as SPKRS = 1. A front panel toggle switch on the filter panel turns off the power to the NESCAF filter, and re-routes the speaker audio connection from the filter output, to the K3 output directly. I had done this often, for the first week of operations. This time, however, I briefly saw a HI CURR indication on the front panel of the K3, and then my speaker audio vanished. Unplugging all connections from the rear panel SPKRS jack, and the front panel PHONES jack, no longer allows the K3's internal speaker to produce audio. Nothing I tried would result in any audio from the external speaker, after connecting that speaker to either of the phono jacks that were tied to the rear SPKRS jack, through the stereo plug. The INPUT jack on the SCAF filter (to which the K3's SPKRS jack was connected) passes through an isolating capacitor, then a 27K resistor, before being connected to the chip in the audio filter. Resetting SPRKS = 2, in the CONFIG menu, had no effect on producing audio in the external, or internal speaker. I still have audio at the PHONES jack on the front panel, so I can still use the K3. It subsequently accounted for 380 QSOs in the NAQP CW contest, providing it usual flawless performance. I still have audio at the PHONES jack on the rear panel, as well. My theory (and Gary at Elecraft Service agrees it might be the cause) is that the audio chip in the K3 didn't like the abrupt change of load impedance, from 27K (approx.) to infinity, to 8 ohms, while it was delivering audio.. I've since soldered a 15K resistor across the input jack of the audio filter, and will do likewise for any other audio filters I encounter, and use. Puzzling, huh? 73 de VE3GFN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:
Re: [Elecraft] K3 speaker audio gone!
See: http://www.elecraft.com/K3/mods/AF_Output_Mod_Rev_C.pdf This modification is needed for all K3s shipped to date containing either a Revision XB or Revision A KIO3 board. You must inspect the KIO3 board to see whether the modification has been made. Modified boards will include the leaded resistors shown in Figure 4. You can see the resistor in the lower part of the figure by removing the top cover as shown in Figure 1 and inspecting the side of the KIO3 board facing away from the rear panel. Also http://www.elecraft.com/K3/k3_app_notes.htm states Included on all new K3s About 12/23/08 and later. 73, ~iain / N6ML On Tue, Aug 28, 2012 at 11:31 AM, hawley, charles j jr c-haw...@illinois.edu wrote: Was there a serial # that included the current limiting? Sent from my iPhone On Aug 28, 2012, at 1:18 PM, Wayne Burdick n...@elecraft.com wrote: Dave, Do you have the AF amp current-limiting mod in place? The parts for this mod are installed on the RF board. They've been in production for quite some time, and we can send them to you on request. With the limiter installed, we've seen near-zero problems with the AF amp IC. 73, Wayne N6KR On Aug 28, 2012, at 10:25 AM, Dave Hachadorian wrote: I have blown the speaker amp twice, in two different radios, by using a speaker with AGC OFF. POOF! Gone before you can react by turning down the audio. The factory guys report that they have been unable to duplicate the problem. Unless you are an EXPERT solderer, replacing the speaker amp chip is best done by the factory. The job will run about $125 with shipping, maybe a little less if you ship only the DSP Board. I don't use the speaker amp any more. I still think there is a transient susceptibility problem in that circuitry that they have been unable to find. Dave Hachadorian, K6LL Big Bear Lake, California -Original Message- From: Mike Goldstein Sent: Tuesday, August 28, 2012 9:07 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 speaker audio gone! I've lost audio from both the internal speaker in the K3, and from the SPKRS output jack on the rear panel. At the end of the the first week of using a new NESCAF audio filter (which drives my speaker) with the K3, I changed bands, listened briefly on CW, with the NESCAF filter in the circuit. I then changed to SSB, and because the NESCAF filter was adjusted for a very narrow audio bandwidth, I decided to switch it out of the circuit, while the K3 was delivering audio, at a comfortable listening level.. The audio filter was driven from the SPKRS jack on the back of the K3, using a stereo plug, with one channel floating. The SPKRS jack was CONFIGured as SPKRS = 1. A front panel toggle switch on the filter panel turns off the power to the NESCAF filter, and re-routes the speaker audio connection from the filter output, to the K3 output directly. I had done this often, for the first week of operations. This time, however, I briefly saw a HI CURR indication on the front panel of the K3, and then my speaker audio vanished. Unplugging all connections from the rear panel SPKRS jack, and the front panel PHONES jack, no longer allows the K3's internal speaker to produce audio. Nothing I tried would result in any audio from the external speaker, after connecting that speaker to either of the phono jacks that were tied to the rear SPKRS jack, through the stereo plug. The INPUT jack on the SCAF filter (to which the K3's SPKRS jack was connected) passes through an isolating capacitor, then a 27K resistor, before being connected to the chip in the audio filter. Resetting SPRKS = 2, in the CONFIG menu, had no effect on producing audio in the external, or internal speaker. I still have audio at the PHONES jack on the front panel, so I can still use the K3. It subsequently accounted for 380 QSOs in the NAQP CW contest, providing it usual flawless performance. I still have audio at the PHONES jack on the rear panel, as well. My theory (and Gary at Elecraft Service agrees it might be the cause) is that the audio chip in the K3 didn't like the abrupt change of load impedance, from 27K (approx.) to infinity, to 8 ohms, while it was delivering audio.. I've since soldered a 15K resistor across the input jack of the audio filter, and will do likewise for any other audio filters I encounter, and use. Puzzling, huh? 73 de VE3GFN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:
[Elecraft] FS: AF1 + enclosure
Paring down the station... Elecraft AF1 Active Filter ($59.95) W8FGU AF1 Active Filter Enclosure ($29.95) Total new is $89.90. Your price is $76.00 + shipping. Please contact me off list to arrange for shipping and terms. Thanks! -john W4PAH Madison, WI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 speaker audio gone!
Iain, The mod you referenced below is a very old one (470 ohm resistors on the KIO3). It has been in production for a long time. The mod I was talking about is newer (2010, I believe). It involves a pair of very small-valued resistors in series with the AF output coupling capacitors. This, too, is in production. However, I just looked on the K3 mods page, and it appears that we never did turn this into a mod kit. We'll get this corrected right away. Wayne N6KR On Aug 28, 2012, at 12:17 PM, iain macdonnell - N6ML wrote: See: http://www.elecraft.com/K3/mods/AF_Output_Mod_Rev_C.pdf This modification is needed for all K3s shipped to date containing either a Revision XB or Revision A KIO3 board. You must inspect the KIO3 board to see whether the modification has been made. Modified boards will include the leaded resistors shown in Figure 4. You can see the resistor in the lower part of the figure by removing the top cover as shown in Figure 1 and inspecting the side of the KIO3 board facing away from the rear panel. Also http://www.elecraft.com/K3/k3_app_notes.htm states Included on all new K3s About 12/23/08 and later. 73, ~iain / N6ML On Tue, Aug 28, 2012 at 11:31 AM, hawley, charles j jr c-haw...@illinois.edu wrote: Was there a serial # that included the current limiting? Sent from my iPhone On Aug 28, 2012, at 1:18 PM, Wayne Burdick n...@elecraft.com wrote: Dave, Do you have the AF amp current-limiting mod in place? The parts for this mod are installed on the RF board. They've been in production for quite some time, and we can send them to you on request. With the limiter installed, we've seen near-zero problems with the AF amp IC. 73, Wayne N6KR On Aug 28, 2012, at 10:25 AM, Dave Hachadorian wrote: I have blown the speaker amp twice, in two different radios, by using a speaker with AGC OFF. POOF! Gone before you can react by turning down the audio. The factory guys report that they have been unable to duplicate the problem. Unless you are an EXPERT solderer, replacing the speaker amp chip is best done by the factory. The job will run about $125 with shipping, maybe a little less if you ship only the DSP Board. I don't use the speaker amp any more. I still think there is a transient susceptibility problem in that circuitry that they have been unable to find. Dave Hachadorian, K6LL Big Bear Lake, California -Original Message- From: Mike Goldstein Sent: Tuesday, August 28, 2012 9:07 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 speaker audio gone! I've lost audio from both the internal speaker in the K3, and from the SPKRS output jack on the rear panel. At the end of the the first week of using a new NESCAF audio filter (which drives my speaker) with the K3, I changed bands, listened briefly on CW, with the NESCAF filter in the circuit. I then changed to SSB, and because the NESCAF filter was adjusted for a very narrow audio bandwidth, I decided to switch it out of the circuit, while the K3 was delivering audio, at a comfortable listening level.. The audio filter was driven from the SPKRS jack on the back of the K3, using a stereo plug, with one channel floating. The SPKRS jack was CONFIGured as SPKRS = 1. A front panel toggle switch on the filter panel turns off the power to the NESCAF filter, and re-routes the speaker audio connection from the filter output, to the K3 output directly. I had done this often, for the first week of operations. This time, however, I briefly saw a HI CURR indication on the front panel of the K3, and then my speaker audio vanished. Unplugging all connections from the rear panel SPKRS jack, and the front panel PHONES jack, no longer allows the K3's internal speaker to produce audio. Nothing I tried would result in any audio from the external speaker, after connecting that speaker to either of the phono jacks that were tied to the rear SPKRS jack, through the stereo plug. The INPUT jack on the SCAF filter (to which the K3's SPKRS jack was connected) passes through an isolating capacitor, then a 27K resistor, before being connected to the chip in the audio filter. Resetting SPRKS = 2, in the CONFIG menu, had no effect on producing audio in the external, or internal speaker. I still have audio at the PHONES jack on the front panel, so I can still use the K3. It subsequently accounted for 380 QSOs in the NAQP CW contest, providing it usual flawless performance. I still have audio at the PHONES jack on the rear panel, as well. My theory (and Gary at Elecraft Service agrees it might be the cause) is that the audio chip in the K3 didn't like the abrupt change of load impedance, from 27K (approx.) to infinity, to 8 ohms, while it was delivering audio.. I've since soldered a 15K resistor across the input jack of the audio filter, and will do likewise for any other audio
[Elecraft] K3-AF Output Z?
Has anyone measured or know the AF output impedance or that of the internal stock speaker at sidetone freqs? I'm still looking for an external speaker that can match or better the efficency of the stock one at 700Hz sidetone with 60 deg. deflector. Ditto with headphones. Mike, AC5P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 speaker audio gone!
Wayne, Do you mean the 470 ohm resistors added to the KIO3 Board? If so, both radios had this mod done well before the speaker amps blew. Dave Hachadorian, K6LL Big Bear Lake, California -Original Message- From: Wayne Burdick Sent: Tuesday, August 28, 2012 11:18 AM To: Dave Hachadorian Cc: Elecraft Reflector Subject: Re: [Elecraft] K3 speaker audio gone! Dave, Do you have the AF amp current-limiting mod in place? The parts for this mod are installed on the RF board. They've been in production for quite some time, and we can send them to you on request. With the limiter installed, we've seen near-zero problems with the AF amp IC. 73, Wayne N6KR On Aug 28, 2012, at 10:25 AM, Dave Hachadorian wrote: I have blown the speaker amp twice, in two different radios, by using a speaker with AGC OFF. POOF! Gone before you can react by turning down the audio. The factory guys report that they have been unable to duplicate the problem. Unless you are an EXPERT solderer, replacing the speaker amp chip is best done by the factory. The job will run about $125 with shipping, maybe a little less if you ship only the DSP Board. I don't use the speaker amp any more. I still think there is a transient susceptibility problem in that circuitry that they have been unable to find. Dave Hachadorian, K6LL Big Bear Lake, California -Original Message- From: Mike Goldstein Sent: Tuesday, August 28, 2012 9:07 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 speaker audio gone! I've lost audio from both the internal speaker in the K3, and from the SPKRS output jack on the rear panel. At the end of the the first week of using a new NESCAF audio filter (which drives my speaker) with the K3, I changed bands, listened briefly on CW, with the NESCAF filter in the circuit. I then changed to SSB, and because the NESCAF filter was adjusted for a very narrow audio bandwidth, I decided to switch it out of the circuit, while the K3 was delivering audio, at a comfortable listening level.. The audio filter was driven from the SPKRS jack on the back of the K3, using a stereo plug, with one channel floating. The SPKRS jack was CONFIGured as SPKRS = 1. A front panel toggle switch on the filter panel turns off the power to the NESCAF filter, and re-routes the speaker audio connection from the filter output, to the K3 output directly. I had done this often, for the first week of operations. This time, however, I briefly saw a HI CURR indication on the front panel of the K3, and then my speaker audio vanished. Unplugging all connections from the rear panel SPKRS jack, and the front panel PHONES jack, no longer allows the K3's internal speaker to produce audio. Nothing I tried would result in any audio from the external speaker, after connecting that speaker to either of the phono jacks that were tied to the rear SPKRS jack, through the stereo plug. The INPUT jack on the SCAF filter (to which the K3's SPKRS jack was connected) passes through an isolating capacitor, then a 27K resistor, before being connected to the chip in the audio filter. Resetting SPRKS = 2, in the CONFIG menu, had no effect on producing audio in the external, or internal speaker. I still have audio at the PHONES jack on the front panel, so I can still use the K3. It subsequently accounted for 380 QSOs in the NAQP CW contest, providing it usual flawless performance. I still have audio at the PHONES jack on the rear panel, as well. My theory (and Gary at Elecraft Service agrees it might be the cause) is that the audio chip in the K3 didn't like the abrupt change of load impedance, from 27K (approx.) to infinity, to 8 ohms, while it was delivering audio.. I've since soldered a 15K resistor across the input jack of the audio filter, and will do likewise for any other audio filters I encounter, and use. Puzzling, huh? 73 de VE3GFN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list:
[Elecraft] Elecraft K3 support
Dear Elecraft Friends, Up through last weekend I had been operating my K3 #820 with MCU 4.31 and DSP 2.72, firmware that dated from March 2011. I was content with my K3’s performance, and saw no reason to upgrade. But Reflector reports praising recent improvements in NR and NB operation finally persuaded me that I should update my K3. Accordingly, last Monday I downloaded the latest Mac K3 Utility and began the upgrade. All went well until the Utility tried to install the DSP files, at which point my K3 choked and everything stopped. I suddenly had a non-working radio and was at an impasse. I contacted Elecraft support and soon heard from Gary Surrency. Gary, in turn, passed my message on to David Fleming, who has full responsibility for the Mac K3 Utility. David was solicitous and extremely helpful. He pointed out that my ancient Mac Powerbook computer with OS 10.4.11 is too long in the tooth to run the current Mac K3 Utility, and he kindly sent me the latest version that my computer would tolerate. Following his very specific instructions, I used that older Utility to successfully install all of the new firmware files. My K3 now is back in operation with the latest firmware. David went far beyond the call of duty to help me solve my problem. In fact, he sent his last e-mail message to me last evening at 10:40 p.m. (we both are on EDT). I consider his dedication typical of what we all have come to expect from Elecraft support. Thank you David, and thank you Elecraft. 73, John, no8v __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft K3 support
One of the very reasons I own two K3's a P3 and a KPA 500. The products rock and if you have problems the tech support is tops! Mike W0MU W0MU-1 CC Cluster w0mu.net:23 or w0mu-1.dnsdynamic.com Http://www.w0mu.com On 8/28/2012 2:15 PM, John Gibson wrote: Dear Elecraft Friends, Up through last weekend I had been operating my K3 #820 with MCU 4.31 and DSP 2.72, firmware that dated from March 2011. I was content with my K3’s performance, and saw no reason to upgrade. But Reflector reports praising recent improvements in NR and NB operation finally persuaded me that I should update my K3. Accordingly, last Monday I downloaded the latest Mac K3 Utility and began the upgrade. All went well until the Utility tried to install the DSP files, at which point my K3 choked and everything stopped. I suddenly had a non-working radio and was at an impasse. I contacted Elecraft support and soon heard from Gary Surrency. Gary, in turn, passed my message on to David Fleming, who has full responsibility for the Mac K3 Utility. David was solicitous and extremely helpful. He pointed out that my ancient Mac Powerbook computer with OS 10.4.11 is too long in the tooth to run the current Mac K3 Utility, and he kindly sent me the latest version that my computer would tolerate. Following his very specific instructions, I used that older Utility to successfully install all of the new firmware files. My K3 now is back in operation with the latest firmware. David went far beyond the call of duty to help me solve my problem. In fact, he sent his last e-mail message to me last evening at 10:40 p.m. (we both are on EDT). I consider his dedication typical of what we all have come to expect from Elecraft support. Thank you David, and thank you Elecraft. 73, John, no8v __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K-1 4-bander suggestions?
On 8/27/2012 8:04 PM, Mike Morrow wrote: I didn't realize that Novice exams were ever given at an FCC office, nor Technician exams either, Yep, *all* exams were before an FCC Examiner except the Conditional which was a General administered by others if you were too far from the FCC office. I can still remember, terrified at 13 in 1953, walking into the office in Los Angeles and seeing that Boehme punched tape reader with the speedometer dial sticking up. It almost seemed like a torture device. My seat was right next to it at the long table, it sat on a tin plate with a little lip around it into which the oil dripped, and I can almost smell it today. The examiner, who [not making this up] was wearing a green eyeshade, explained the process, adjusted the speed to 5 WPM and asked two applicants to verify it, and then ran it for 5 min. We needed one continuous minute of error-free copy -- 25 characters. It was plain text including numbers period, comma, slash, and question mark. He collected the papers, and hand-graded them one by one, saying nothing. When he finished, he announced the names of those who passed, one was me :-), and the rest left. He handed out the written exams, as I recall we had an hour but memory there is vague. Like the code, he collected the papers, graded all of them, and announced who passed. KN6DGW arrived in the mail about 5 weeks later. 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K-1 4-bander suggestions?
Fred, you forgot the step between passing the received code test and the written test: a sending test. When I upgraded from Novice to General in 1953 at that same office, one of the applicants passed on receiving but failed at sending. He was so nervous that his fist was just too shaky to control the hand key. Novice testing by volunteers started around 1956 or so. 73, Bob N7XY (WN6SWE/W6SWE in the old days). On Aug 28, 2012, at 1:31 PM, Fred Jensen k6...@foothill.net wrote: On 8/27/2012 8:04 PM, Mike Morrow wrote: I didn't realize that Novice exams were ever given at an FCC office, nor Technician exams either, Yep, *all* exams were before an FCC Examiner except the Conditional which was a General administered by others if you were too far from the FCC office. I can still remember, terrified at 13 in 1953, walking into the office in Los Angeles and seeing that Boehme punched tape reader with the speedometer dial sticking up. It almost seemed like a torture device. My seat was right next to it at the long table, it sat on a tin plate with a little lip around it into which the oil dripped, and I can almost smell it today. The examiner, who [not making this up] was wearing a green eyeshade, explained the process, adjusted the speed to 5 WPM and asked two applicants to verify it, and then ran it for 5 min. We needed one continuous minute of error-free copy -- 25 characters. It was plain text including numbers period, comma, slash, and question mark. He collected the papers, and hand-graded them one by one, saying nothing. When he finished, he announced the names of those who passed, one was me :-), and the rest left. He handed out the written exams, as I recall we had an hour but memory there is vague. Like the code, he collected the papers, graded all of them, and announced who passed. KN6DGW arrived in the mail about 5 weeks later. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 speaker audio gone!
Wayne, The series resistors do not appear to be documented on the most recent (June 2010) schematic package. At least I can't find any on the front panel board, mainboard, or anywhere on the KIO3. 73, ... Joe, W4TV On 8/28/2012 4:07 PM, Dave Hachadorian wrote: Wayne, Do you mean the 470 ohm resistors added to the KIO3 Board? If so, both radios had this mod done well before the speaker amps blew. Dave Hachadorian, K6LL Big Bear Lake, California -Original Message- From: Wayne Burdick Sent: Tuesday, August 28, 2012 11:18 AM To: Dave Hachadorian Cc: Elecraft Reflector Subject: Re: [Elecraft] K3 speaker audio gone! Dave, Do you have the AF amp current-limiting mod in place? The parts for this mod are installed on the RF board. They've been in production for quite some time, and we can send them to you on request. With the limiter installed, we've seen near-zero problems with the AF amp IC. 73, Wayne N6KR On Aug 28, 2012, at 10:25 AM, Dave Hachadorian wrote: I have blown the speaker amp twice, in two different radios, by using a speaker with AGC OFF. POOF! Gone before you can react by turning down the audio. The factory guys report that they have been unable to duplicate the problem. Unless you are an EXPERT solderer, replacing the speaker amp chip is best done by the factory. The job will run about $125 with shipping, maybe a little less if you ship only the DSP Board. I don't use the speaker amp any more. I still think there is a transient susceptibility problem in that circuitry that they have been unable to find. Dave Hachadorian, K6LL Big Bear Lake, California -Original Message- From: Mike Goldstein Sent: Tuesday, August 28, 2012 9:07 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 speaker audio gone! I've lost audio from both the internal speaker in the K3, and from the SPKRS output jack on the rear panel. At the end of the the first week of using a new NESCAF audio filter (which drives my speaker) with the K3, I changed bands, listened briefly on CW, with the NESCAF filter in the circuit. I then changed to SSB, and because the NESCAF filter was adjusted for a very narrow audio bandwidth, I decided to switch it out of the circuit, while the K3 was delivering audio, at a comfortable listening level.. The audio filter was driven from the SPKRS jack on the back of the K3, using a stereo plug, with one channel floating. The SPKRS jack was CONFIGured as SPKRS = 1. A front panel toggle switch on the filter panel turns off the power to the NESCAF filter, and re-routes the speaker audio connection from the filter output, to the K3 output directly. I had done this often, for the first week of operations. This time, however, I briefly saw a HI CURR indication on the front panel of the K3, and then my speaker audio vanished. Unplugging all connections from the rear panel SPKRS jack, and the front panel PHONES jack, no longer allows the K3's internal speaker to produce audio. Nothing I tried would result in any audio from the external speaker, after connecting that speaker to either of the phono jacks that were tied to the rear SPKRS jack, through the stereo plug. The INPUT jack on the SCAF filter (to which the K3's SPKRS jack was connected) passes through an isolating capacitor, then a 27K resistor, before being connected to the chip in the audio filter. Resetting SPRKS = 2, in the CONFIG menu, had no effect on producing audio in the external, or internal speaker. I still have audio at the PHONES jack on the front panel, so I can still use the K3. It subsequently accounted for 380 QSOs in the NAQP CW contest, providing it usual flawless performance. I still have audio at the PHONES jack on the rear panel, as well. My theory (and Gary at Elecraft Service agrees it might be the cause) is that the audio chip in the K3 didn't like the abrupt change of load impedance, from 27K (approx.) to infinity, to 8 ohms, while it was delivering audio.. I've since soldered a 15K resistor across the input jack of the audio filter, and will do likewise for any other audio filters I encounter, and use. Puzzling, huh? 73 de VE3GFN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Year of the K2
I was chicken to buy one of the first ones, so I waited until midsummer when they were already up to no. 709. I didn't make that mistake with the K3! On 8/28/2012 8:55 AM, Wayne Burdick wrote: Hi Bill, We shipped the first batch of K2s in early 1999. 73, Wayne N6KR On Aug 28, 2012, at 8:25 AM, Bill Harris wrote: Anyone remember what year the K2 was introduced? I'm thinking somewhere around 2000. de Bill-w7kxb. -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 speaker audio gone!
I have the AF Limit set at 30 and have experienced my share of crashes when the AGC is turned off with no damage. (Knocking on wood now!!) Jim, W4ATK On Aug 28, 2012, at 12:25 PM, Dave Hachadorian k...@arrl.net wrote: I have blown the speaker amp twice, in two different radios, by using a speaker with AGC OFF. POOF! Gone before you can react by turning down the audio. The factory guys report that they have been unable to duplicate the problem. Unless you are an EXPERT solderer, replacing the speaker amp chip is best done by the factory. The job will run about $125 with shipping, maybe a little less if you ship only the DSP Board. I don't use the speaker amp any more. I still think there is a transient susceptibility problem in that circuitry that they have been unable to find. Dave Hachadorian, K6LL Big Bear Lake, California -Original Message- From: Mike Goldstein Sent: Tuesday, August 28, 2012 9:07 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 speaker audio gone! I've lost audio from both the internal speaker in the K3, and from the SPKRS output jack on the rear panel. At the end of the the first week of using a new NESCAF audio filter (which drives my speaker) with the K3, I changed bands, listened briefly on CW, with the NESCAF filter in the circuit. I then changed to SSB, and because the NESCAF filter was adjusted for a very narrow audio bandwidth, I decided to switch it out of the circuit, while the K3 was delivering audio, at a comfortable listening level.. The audio filter was driven from the SPKRS jack on the back of the K3, using a stereo plug, with one channel floating. The SPKRS jack was CONFIGured as SPKRS = 1. A front panel toggle switch on the filter panel turns off the power to the NESCAF filter, and re-routes the speaker audio connection from the filter output, to the K3 output directly. I had done this often, for the first week of operations. This time, however, I briefly saw a HI CURR indication on the front panel of the K3, and then my speaker audio vanished. Unplugging all connections from the rear panel SPKRS jack, and the front panel PHONES jack, no longer allows the K3's internal speaker to produce audio. Nothing I tried would result in any audio from the external speaker, after connecting that speaker to either of the phono jacks that were tied to the rear SPKRS jack, through the stereo plug. The INPUT jack on the SCAF filter (to which the K3's SPKRS jack was connected) passes through an isolating capacitor, then a 27K resistor, before being connected to the chip in the audio filter. Resetting SPRKS = 2, in the CONFIG menu, had no effect on producing audio in the external, or internal speaker. I still have audio at the PHONES jack on the front panel, so I can still use the K3. It subsequently accounted for 380 QSOs in the NAQP CW contest, providing it usual flawless performance. I still have audio at the PHONES jack on the rear panel, as well. My theory (and Gary at Elecraft Service agrees it might be the cause) is that the audio chip in the K3 didn't like the abrupt change of load impedance, from 27K (approx.) to infinity, to 8 ohms, while it was delivering audio.. I've since soldered a 15K resistor across the input jack of the audio filter, and will do likewise for any other audio filters I encounter, and use. Puzzling, huh? 73 de VE3GFN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KX3 Production Firmware (rev 1.12) -- Misc. improvements
KX3 production firmware rev 1.12 (with DSP rev 0.94) is now available. See release notes below. This update is appropriate for all KX3 owners. You'll need our KX3 Utility application to download and install firmware. For full instructions, refer to our KX3 software page: http://www.elecraft.com/KX3/KX3_software.htm Thanks, Wayne N6KR * * * * MIN SUPPLY VOLTAGE NOW 7.5 V (was 8.0): Increases operating time when using an 8-cell NiMH battery pack. Recommended max power output is 3 W when operating from less than 9 volts, although 5 watts is possible in most cases. * KEY OUT (ACC2) FOLLOWS CW DELAY SETTING: Prevents excessive switching of external equipment being keyed by the KX3’s KEY OUT line. Set desired delay using DLY switch. * IMPROVED HANDLING OF UNINTENTIONAL KEYING ON POWER-UP: Includes two new error messages: ERR VOX (voice or audio-data mode VOX was activated) and ERR ACP (PTT was activated via the ACC2 jack with the given setting of the ACC2 IO menu entry). In the ERR VOX case, VOX is turned off. In the ERR ACP case, ACC2 IO is set to OFF. * UP/DN MIC FUNCTIONS DISABLED IN AF DATA MODES (DATA-A and AFSK-A): In this case the user will have a PC audio cable, not an MH3, plugged in at the mic jack. Eliminates the need to change the MIC BTN menu setting when switching from voice to audio data modes. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] FS: XG2 in W8FGU Enclosure w/power switch
Looks and works perfect $80 shipped Paypal or Postal MO. Reason for selling, just bought a XG3. Thanks Tim NZ8J __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K-1 4-bander suggestions?
On 8/28/2012 2:03 PM, Bob Nielsen wrote: Fred, you forgot the step between passing the received code test and the written test: a sending test. When I upgraded from Novice to General in 1953 at that same office, one of the applicants passed on receiving but failed at sending. He was so nervous that his fist was just too shaky to control the hand key. Indeed, I did. I knew I could copy reliably at around 10 WPM with my Elmer sending, but that mechanical monster right next to me seriously increased my stress. When I found out I passed, and that thing was turned off, the sending test on the FCC's J-38 wasn't a problem. I used it for the General about six months later too. When I went for the Extra after the 2 years service was up, I took my Lionel J-36 bug. I ended up sending at 25 WPM for the 2T [accidentally, long story], but got 20 WPM credit for the Extra that afternoon. The nostalgia is fun [for a few minutes], but I think we in the US have evolved very well in the examination process. We're a volunteer, hobby-oriented service ... far better we should have a volunteer examination force rather than paying government employees with green eyeshades and machines from hell to terrorize 13 yr olds. :-) 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K-1 4-bander suggestions?
On Tue, 2012-08-28 at 14:03 -0700, Bob Nielsen wrote: Novice testing by volunteers started around 1956 or so. I actually took the Novice exam in an FCC office in 1968. I lived in Gettysburg, where the FCC's amateur licensing office was. Probably it was an informal arrangement with the local ham club. Alan N1AL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KX3 Power Sense
It's my understanding that the KX3 will sense the input voltage and adjust power output correspondingly. That is, if I'm using internal NiMH batteries, power output will be limited to 5 Watts, and if I'm powering the KX3 from a 13.8 Volt source, power output will be allowed to go all the way to 12 Watts. Right? Well, here's what I'm experiencing: Let's say I've got my power set to 10 Watts using a 13.8 Volt source and my KX3 display indicates 10W output. If I turn off the KX3, unplug the 13.8 Volt source and run off batteries, my power out (as indicated by the KX3 display) is 5 Watts...fine! Now, if I turn off the KX3, plug in the 13.8 Volt source back into the KX3, and then power on, output is still at 5 Watts. I have to readjust PWR to 10 Watts to get 10 Watts out. Is that the way it's supposed to work, or am I missing a setting somewhere? Bert, N4CW/K1IMI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KX3 Power Sense
That's the way my KX3 #6 works too. It's what I'd expect. Firmware: MCU 1.12, DSP 0.94 Matt Zilmer W6NIA In status quo voluntas non sufficit -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of n...@aol.com Sent: Tuesday, August 28, 2012 3:47 PM To: elecraft@mailman.qth.net Subject: [Elecraft] KX3 Power Sense It's my understanding that the KX3 will sense the input voltage and adjust power output correspondingly. That is, if I'm using internal NiMH batteries, power output will be limited to 5 Watts, and if I'm powering the KX3 from a 13.8 Volt source, power output will be allowed to go all the way to 12 Watts. Right? Well, here's what I'm experiencing: Let's say I've got my power set to 10 Watts using a 13.8 Volt source and my KX3 display indicates 10W output. If I turn off the KX3, unplug the 13.8 Volt source and run off batteries, my power out (as indicated by the KX3 display) is 5 Watts...fine! Now, if I turn off the KX3, plug in the 13.8 Volt source back into the KX3, and then power on, output is still at 5 Watts. I have to readjust PWR to 10 Watts to get 10 Watts out. Is that the way it's supposed to work, or am I missing a setting somewhere? Bert, N4CW/K1IMI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K-1 4-bander suggestions?
I suspect that the FCC office could always give the novice test, but didn't have many takers when you could get the test from a volunteer in the comfort of his or your home. Everyone knows that the examiners would kill you and eat you if you failed their test. That is why there was so much fear of the office! At least it seemed that way from the fear shown by otherwise grown men. Willis 'Cookie' Cooke K5EWJ Trustee N5BPS, USS Cavalla, USS Stewart From: Alan Bloom n...@sonic.net To: Bob Nielsen n...@clearwire.net Cc: Elecraft List elecraft@mailman.qth.net Sent: Tuesday, August 28, 2012 5:37 PM Subject: Re: [Elecraft] K-1 4-bander suggestions? On Tue, 2012-08-28 at 14:03 -0700, Bob Nielsen wrote: Novice testing by volunteers started around 1956 or so. I actually took the Novice exam in an FCC office in 1968. I lived in Gettysburg, where the FCC's amateur licensing office was. Probably it was an informal arrangement with the local ham club. Alan N1AL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K3] GPIO input to switch output power with external amplifier on?
Hi all, I know that the K3 can remember a separate power level for transmitting with an intelligent external amplifier like the KPA500, but I have an old boat-anchor amplifier which I switch in and out with a simple switch connected to the KEY OUT line of the K3. Sometimes I am working barefoot on the K3 with 100W and then I decide I need some extra power and turn on the amplifier. Then I have to turn the drive down on the K3 to about 40W to drive the amplifier, but sometimes I forget and the result is amplifier overdrive and burnt smell from the tubes. It would be very nice if there was an input on the K3 that would switch to the alternative per-band memory for drive power. It might already be there and used for the KPA500, but I couldn't find it in the manual. 73, Thomas M0TRN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K-1 4-bander suggestions?
My Elmer gave me the Novice exam in 1961. Then a guy in a near-by town (I think he had to be an Extra) gave me the Conditional General test the next year. I don't remember taking a code test for that, but surely it was required??? Then in 1968, just before graduating from college, I figured I knew as much about electronics as I ever would (I was right about that), I took the Extra exam at a federal building in Jackson, MS. The examiner required me to pass, in sequence, all of the code speed tests. I got the impression he was expecting me to fail, but CW was my thing and I think I got 100% copy on all of them. I remember him looking up at me after grading the 20 wpm test and smiling. I was very proud of my Extra ticket. My call back then was WA5ALL. 73, Randy, KS4L On Tue, 2012-08-28 at 14:03 -0700, Bob Nielsen wrote: Novice testing by volunteers started around 1956 or so. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] feedback in K3
You can get the recommend K3 mic or headset settings for all Heil products off the Heil Website. Bill - W0BBI -- View this message in context: http://elecraft.365791.n2.nabble.com/feedback-in-K3-tp7561065p7561766.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3/100 PA Removal
Roger, Have you checked the Elecraft website and reviewed the K3 assembly manual that is available on-line. It should provide all the information you need to successfully remove the PA unit. It has quit a few illustrations for reference. Bill-W0BBI -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-100-PA-Removal-tp7560919p7561767.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] GPIO input to switch output power with external amplifier on?
I also have suggested this. I wrote a macro which toggles the DIGOUT1 line which I use to enable/disable my 'dumb' amplifier. The macro also switches between 100w and 65w, which is more or less what I use to drive the amplifier. But I would really like to have access to the per-band settings used for the KPA500. This feature is only available if you have a KPA500 now, but it shouldn't be hard to make it accessible to everyone. On 8/28/2012 4:41 PM, Thomas Horsten wrote: Hi all, I know that the K3 can remember a separate power level for transmitting with an intelligent external amplifier like the KPA500, but I have an old boat-anchor amplifier which I switch in and out with a simple switch connected to the KEY OUT line of the K3. Sometimes I am working barefoot on the K3 with 100W and then I decide I need some extra power and turn on the amplifier. Then I have to turn the drive down on the K3 to about 40W to drive the amplifier, but sometimes I forget and the result is amplifier overdrive and burnt smell from the tubes. It would be very nice if there was an input on the K3 that would switch to the alternative per-band memory for drive power. It might already be there and used for the KPA500, but I couldn't find it in the manual. 73, Thomas M0TRN -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 and Alpha 87A SWR
Hi, Mike et al: If you are adventurous, and your K3 has a KAT3, you might try putting the K3 into the LCSET mode and drive the '87A slowly and gently up to max while adjusting the KAT3 LC parameters. Pls don't hotswitch! I think you may see that the sign of the Zin changes from band to band: you get better results with Ca than Ct and vice versa. Fred Cady's book has a good several pages in this, iirc. The length of the pigtail has an effect, as well; however, since the K3s I have will drive the '87As I have through real Alpha pigtails, without resorting to the K3's internal tuner, I've ignored the situation. Too many variables, heh heh. Purists, ymmv, thanks. Brgds, Dave Windisch, N3HE Livin' the dream in Jacksonville, FL -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-and-Alpha-87A-SWR-tp7561478p7561654.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [KNB1] Board Revision Level
I just want to confirm something. The instructions refer to board revision C. Myboard is Rev. Cr. That's not same as C, right? Thanks. 73, Bob KD2UJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Year of the K2
I have to believe that as long as Elecraft produces a radio that can be built from the ground up with a soldering iron - allowing for whatever specs and necessary SM components - there will be a market for it. I just hope that their business model allows for some such radio without doing the company harm. It's a real gift to the hobby and keeps the experimental dimension alive. I also think that such a radio/project appeases the gods and keeps the Elecraft mojo healthy and strong. ...robert On 8/28/2012 21:24, Vic K2VCO wrote: I was chicken to buy one of the first ones, so I waited until midsummer when they were already up to no. 709. I didn't make that mistake with the K3! On 8/28/2012 8:55 AM, Wayne Burdick wrote: Hi Bill, We shipped the first batch of K2s in early 1999. 73, Wayne N6KR On Aug 28, 2012, at 8:25 AM, Bill Harris wrote: Anyone remember what year the K2 was introduced? I'm thinking somewhere around 2000. de Bill-w7kxb. -- Robert G. Strickland, PhD, ABPH - KE2WY rc...@verizon.net Syracuse, New York, USA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [KNB1] Board Revision Level
Bob wrote: I just want to confirm something. The instructions refer to board revision C. Myboard is Rev. Cr. That's not same as C, right? I don't believe there has been any revision to the PCB for the KNB1 in more than eleven years, and only one revision to the Errata sheet. Even though the KNB1 manual mentions a revision D PCB, that has never been issued. The manual also states that on the revision C PCB, the model number is mis-written as KBN1 instead of KNB1, so that's a way to verify rev. C. It's pretty safe to say your PCB is a revision C PCB. Don't forget to add the capacitor shown in the errata...it's pretty important. 73, Mike / KK5F __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Sidetone feature request
Michael, Your suggestion would make a good keyswitch macro. Except I think there are no commands available to increment/decrement PITCH and SHIFT. 73, Drew AF2Z On Sun, 12 Aug 2012 12:50:37 -0700, you wrote: Drew, although I don't see a way for you to accomplish what you're asking, being able to move the pitch Freq. while still monitoring the signal. I can see a way for Dale to do what he is trying to accomplish. Dale, have you considered setting your pitch to say 500hz (for example), and then sliding your IF shift off freq. center by perhaps a few Hz (50 or so) and then centering your DX station in the middle of that modified IF center. This would change the sound of his tone to 450Hz for example (or 550Hz depending on which way you move the IF Shift). At the same time, this would keep him right in the center of your IF Width filter. Yet Your pitch for transmit would still remain at 500 Hz. This would give you a nice difference between your TX and receive Tones. In order to TX on his Zero beat freq. you may would have to do a SPLIT operation and then TX on the original freq where he is zero beat without the offset. Here's an example below: DX Zero beat = 14.050.000 Pitch = 500Hz IF Shift = +50Hz (.55 on the Shift display) VFO A Read out = 14.050.050 (DX now sounds 50HZ higher than your Pitch Freq but still remains ZERO Beat) TX Split Freq = 14.050.000 Hope this works out for you. Best 73, Michael N6MQL While trying to work D64K the other night on 20m CW with the filters tightened down to about 100Hz around D64K (to filter out the typical tuner-uppers, 'up'-cops, and stations calling on or nearly on frequency) I wished that there was a way to offset the sidetone frequency just a bit so that it wasn't the same as the filter center frequency. This issue is that when operating fast QSK where the DX station is tightly centered in the filter bandpass, my own sidetone gets in the way of being able to hear the DX station since the frequency is the same. If the sidetone could be offset 50 to 100 Hz above or below the filter center frequency, this masking would no longer occur. Any chance that this capability already exists and I just haven't discovered it yet? 73, Dale WA8SRA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3-AF Output Z?
Not sure if this is what you have in mind but I am using a MFJ-281 ClearTone speaker with my K3. It is peaky around 600-700 Hz (wish it were a little lower...). Looks nice sitting on top of the K3 with its matching colors: white letters on black... 73, Drew AF2Z On Tue, 28 Aug 2012 13:06:52 -0700 (PDT), you wrote: Has anyone measured or know the AF output impedance or that of the internal stock speaker at sidetone freqs? I'm still looking for an external speaker that can match or better the efficency of the stock one at 700Hz sidetone with 60 deg. deflector. Ditto with headphones. Mike, AC5P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3/100 PA Removal
This document on the Elecraft web site should provide all the detailed instructions one needs to do the job: http://www.elecraft.com/manual/KPA3%20Power%20Connector%20Replacement.pdf 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill W Sent: Tuesday, August 28, 2012 5:42 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3/100 PA Removal Roger, Have you checked the Elecraft website and reviewed the K3 assembly manual that is available on-line. It should provide all the information you need to successfully remove the PA unit. It has quit a few illustrations for reference. Bill-W0BBI -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-100-PA-Removal-tp7560919p7561767.htm l Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KX3 Audio in Problem
I know I'm overlooking something really obvious, but I'm having a problem sending audio from my laptop to my KX3. I've just received my cables from Elecraft that should allow my inputting of audio data in to the mic input for use with transmitting PSK31. What the problem is that when I put the cable into my laptop's line out, the transmitter is keyed. OK what did I miss? I know I tired. 73, Barry K3NDM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KX3 Audio in Problem
Hi! In menu, set MIC BTN to OFF. Otherwise, default will be PTT which you don't want for computer use. Josh KJ6PVN Sent from my iPhone On Aug 28, 2012, at 21:12, Barry LaZar k3...@comcast.net wrote: I know I'm overlooking something really obvious, but I'm having a problem sending audio from my laptop to my KX3. I've just received my cables from Elecraft that should allow my inputting of audio data in to the mic input for use with transmitting PSK31. What the problem is that when I put the cable into my laptop's line out, the transmitter is keyed. OK what did I miss? I know I tired. 73, Barry K3NDM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] FCC exams
The last time I visited the FCC (in San Francisco) just before the VEC program started, it was a nightmare. I drove a hundred miles, parked my car at a BART (rapid transit) station, and took the RT to downtown SF, and had an unexpected 30 minute delay. I walked the four blocks to the FCC office and got to the testing office door just as the clock hit the start time of 10:00 am. As I started to enter, the door was pulled shut from inside and locked. And I was denied entrance to the exam. I was literally almost across the threshold of the door. You can't imagine how PO'd I was. It couldn't have been a better time to be their last exam. I wanted to strangle the examiner. Got my Extra Class at the first VEC exam I could find. Bill WK6A Sent from my iPhone On Aug 28, 2012, at 5:03 PM, WILLIS COOKE wrco...@yahoo.com wrote: I suspect that the FCC office could always give the novice test, but didn't have many takers when you could get the test from a volunteer in the comfort of his or your home. Everyone knows that the examiners would kill you and eat you if you failed their test. That is why there was so much fear of the office! At least it seemed that way from the fear shown by otherwise grown men. Willis 'Cookie' Cooke K5EWJ Trustee N5BPS, USS Cavalla, USS Stewart From: Alan Bloom n...@sonic.net To: Bob Nielsen n...@clearwire.net Cc: Elecraft List elecraft@mailman.qth.net Sent: Tuesday, August 28, 2012 5:37 PM Subject: Re: [Elecraft] K-1 4-bander suggestions? On Tue, 2012-08-28 at 14:03 -0700, Bob Nielsen wrote: Novice testing by volunteers started around 1956 or so. I actually took the Novice exam in an FCC office in 1968. I lived in Gettysburg, where the FCC's amateur licensing office was. Probably it was an informal arrangement with the local ham club. Alan N1AL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
