[Elecraft] Elecraft CW Net Announcement
Good Evening, Some weeks nothing goes right, this was not one of them. Light rain then sun and mild temperatures. More flowers and more birds. Snow is melting above me so streams are full. The ground was dry enough to let me check the forest. I have much less damage than my neighbors. Their trees are quite a bit younger, they snapped where green wood met more mature timber. Clear growth assures trees will survive; any kinks or forks can be fatal to them. The sunspot number is low and the flux rate is lower too. However, the sun has been quite active this week. There is still a possible earth effective flare from 3615. I expect a more quiet band than we have had lately. Less roaring. There may even be less QSB. But there should be no whistling from clouds of protons, or hissing from high speed electrons. Just normal random noises with (hopefully) more ordered Morse code. If the gaps in the noise are rhythmic enough you are easy copy :) Please join us on (or near): 14050 kHz at 2200z Sunday (3 PM PDT Sunday) 7047 kHz at z Monday (5 PM PDT Sunday) 73, Kevin. KD5ONS - Imagine sunrise on a toroidal planet. __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft Digest, Vol 239, Issue 12
On 3/30/2024 9:16 PM, Bob McGraw wrote: Perhaps a transmit gain calibration is in order. Sadly, the TX gain calibration did not solve the overshoot problem. 73, Mike N4CF __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft Digest, Vol 239, Issue 12
On 3/30/2024 9:16 PM, Bob McGraw wrote: Did the fault occur immediately after a band change? I occasionally see a slight power overshoot from my K3S on the first transmission after a band change. No. It occurs after the KPA switches from STBY to OPER. With the KPA turned off, the overshoot occurs on the first key press after I switch from CW to SSB. Perhaps a transmit gain calibration is in order. I use the K3 Utility for this purpose and a known good 50 ohm dummy load. The radio will do the rest. I think I will do that. I bought this K3 used, and the TX EQ had some very odd settings, so who knows what else might be hosed-up. :-) Thanks for the suggestion. 73, Mike N4CF __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft Digest, Vol 239, Issue 12
Did the fault occur immediately after a band change? I occasionally see a slight power overshoot from my K3S on the first transmission after a band change. Perhaps a transmit gain calibration is in order. I use the K3 Utility for this purpose and a known good 50 ohm dummy load. The radio will do the rest. 73 Bob, K4TAX On 3/30/2024 7:37 PM, elecraft-requ...@mailman.qth.net wrote: Message: 7 Date: Wed, 27 Mar 2024 10:18:59 -0400 From: Pete Smith N4ZR To:kpa1...@groups.io, Elecraft Support, Elecraft List Subject: [Elecraft] Erratic KPA-1500 behavior Message-ID: Content-Type: text/plain; charset=UTF-8; format=flowed This morning, starting the CWT,? every few transmissions my amp was faulting with the indication of excessive driving power (~67 watts vs 33 watts normally).? Each time, it would fault once, then operate normally for a dozen or so transmissions before the next fault. Then, about 10 minutes into the hour, the faults stopped happening.? The K-3 showed 33 watts throughout I checked the KPA-1500 log, and all it shows is the "power input" fault.? What could be causing this erroneous indication of excessive drive?? A sticky relay? -- 73, Pete N4ZR -- "You only grow old when you run out of new things to do" __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] Elecraft K3 boards needed
I am looking for some older K3 boards that most of you have upgraded,and probably will never use. Ksyn3 Kant3 Kxv3 Kxv3a Kio3 I could use 5 of each to start. Please let me know what you have sitting around. Thank you, Larry K6ro www.LSRarecoins.com 310-710-2869 __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] N-GEN replacement
The 2N5235B is .15 cents + postage at Digikey. Better hurry they only have 14,500 left. 73, AK5X-Bill Sent from my iPhone > On Mar 30, 2024, at 4:56 PM, W3FPR wrote: > > Bruce, > > You might try replacing the diode in the N-Gen. > If that does not work, then look at the Noise Generator that N0SS (SK) > published. It is available at > http://www.mmccs.com/mmarc/n0ss/noise_source.pdf. > If you have board etching capability, the board shown is full size - although > you can wire it point to point with only a board (or cardboard) to hold the > components. I built one with no board at all (Wes Hayward's Micro > Mountaineer style), and it works fine. > > 73, > Don W3FPR > >> On 3/30/2024 4:41 PM, Bruce Rosen wrote: >> I see that Elecraft no longer sells the N-GEN wide band noise generator. >> My N-GEN, which I built in 2010, seems to function no longer, so I'm >> looking for a suitable replacement. Kit form is fine. >> >> Any suggestions would be appreciated. >> >> - Bruce K1FFX >> > __ > 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 > Message delivered to a...@me.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] N-GEN replacement
Bruce, You might try replacing the diode in the N-Gen. If that does not work, then look at the Noise Generator that N0SS (SK) published. It is available at http://www.mmccs.com/mmarc/n0ss/noise_source.pdf. If you have board etching capability, the board shown is full size - although you can wire it point to point with only a board (or cardboard) to hold the components. I built one with no board at all (Wes Hayward's Micro Mountaineer style), and it works fine. 73, Don W3FPR On 3/30/2024 4:41 PM, Bruce Rosen wrote: I see that Elecraft no longer sells the N-GEN wide band noise generator. My N-GEN, which I built in 2010, seems to function no longer, so I'm looking for a suitable replacement. Kit form is fine. Any suggestions would be appreciated. - Bruce K1FFX __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] N-GEN replacement
I built a QRPGuys noise bridge a while back. Fun kit. https://qrpguys.com/test-equipment 73, Brian, K0DTJ > On Mar 30, 2024, at 13:43, Bruce Rosen wrote: > > I see that Elecraft no longer sells the N-GEN wide band noise generator. > My N-GEN, which I built in 2010, seems to function no longer, so I'm > looking for a suitable replacement. Kit form is fine. > > Any suggestions would be appreciated. > > - Bruce K1FFX > __ > 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 > Message delivered to huntin...@coastside.net __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] N-GEN replacement
Here is a possibility: https://www.analog.com/en/resources/design-notes/building-a-lowcost-whitenoise-generator.html Dave AB7E On 3/30/2024 1:41 PM, Bruce Rosen wrote: I see that Elecraft no longer sells the N-GEN wide band noise generator. My N-GEN, which I built in 2010, seems to function no longer, so I'm looking for a suitable replacement. Kit form is fine. Any suggestions would be appreciated. - Bruce K1FFX __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] N-GEN replacement
I see that Elecraft no longer sells the N-GEN wide band noise generator. My N-GEN, which I built in 2010, seems to function no longer, so I'm looking for a suitable replacement. Kit form is fine. Any suggestions would be appreciated. - Bruce K1FFX __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] What is K3 Fault 6?
Hi Pete, Check the KPA1500 fault log using KPA1500 Utility. Amp fault codes starting with "6" (such as fault 60) are displayed on the K3 as fault 6. 73, Wayne N6KR > On Mar 30, 2024, at 6:42 AM, Pete Smith N4ZR wrote: > > I have seen this a couple of time when my KPA1500 throws the Excessive power > input fault. Can't find any definition in my K3 docs. > > -- > 73, Pete N4ZR > _ __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] What is K3 Fault 6?
I have seen this a couple of time when my KPA1500 throws the Excessive power input fault. Can't find any definition in my K3 docs. -- 73, Pete N4ZR __ 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 Message delivered to arch...@mail-archive.com
