Re: [Elecraft] K3 CW Chirp
I got a report of my K3 chirping a few years ago. My power supply failed soon after that. During the net my CW became more and more chirpy as time went on. Check your voltage, it may be the cause. GL, Kevin. KD5ONS On 10/4/20 4:17 PM, Dana Roode K6NR wrote: Just finished operating the California QSO Party as K6VO. I received a report of a bad CW chirp and have a recording of how that sounded. Has anyone had any issues with K3s chirping? At this point it's only reported on 80 meter CW, so it may be RF getting somewhere. I think my power supply is good. I have not been able to recreate yet listening to a remote receiver. Any initial thoughts appreciated. Dana __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/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 kev...@coho.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
[Elecraft] K3 CW Chirp
Just finished operating the California QSO Party as K6VO. I received a report of a bad CW chirp and have a recording of how that sounded. Has anyone had any issues with K3s chirping? At this point it's only reported on 80 meter CW, so it may be RF getting somewhere. I think my power supply is good. I have not been able to recreate yet listening to a remote receiver. Any initial thoughts appreciated. Dana __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/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] K3 CW Chirp
During the 2009 CQWW CW contest, I got a report of severe chirp from one of the stations I worked. I turned on my OMNI 6 to listen to my signal and there definitely was a bad case of chirp. I confirmed this on 15 meters, 20 meters, and 40 meters. 80 and 10 showed no issue. External KW amp on or off did not make a difference. I use the K3 12VDC OUT port (0.5 A MAX Switched) to drive antenna switching relays and the control circuit (CMOS BCD to decade decoder) that is driven from the K3 ACC port. To solve the chirp, I used a couple of clamp on ferrite cores on BCD output from the ACC connection AND the 12 VDC OUT. Remove the cores, the chirp returned. I have not yet tried to separate the BCD signals from the 12 power to determine if suppression is necessary on one or both. FYI Lee N8LJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/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
