I have not completely followed this thread, but have you tried using a dummy load to see if the problem still happens? If it does, can you try a different coax between the K3 and the dummy load?
73, Jim / W6JHB > On Jun 9, 2020, at 3:15 PM, Yoshida Akira <[email protected]> wrote: > > Hi all > > Thanks for more suggestions, however I am not happy. > I noticed this a several times yesterday when transmitting FT8 with 50W. > > I checked DX cable and connectors. It looks OK. I look at voltage, current > and PA Temp > with internal meter. I do not notice any significant jump just before shut > down. > > It is better for me to send K3/100 to JA dealer who checked everything, > sometimes > replaced parts before. > > BTW: my K3/100 s/n 00060 arrived on 2007/12 I still like this radio best. > > Thanks > > 73 > > > On 2020/06/09 11:33, Yoshida Akira wrote: >> Hi all >> >> Thanks for suggestions. All look OK to me. >> >> Power supply is Powerwerx ss-30DV. I do not use Powerpole connector >> in the front panel, instead use terminal in the back panel. >> >> I use this power supply for another TRX also and have never noticed the >> problem. >> >> 73 >> >> On 2020/06/09 9:00, Yoshida Akira wrote: >>> Hi all >>> >>> I have never seen this for many years, however I recently noticed twice >>> when transmitting FT8 with 100W. No alarm and error message. >>> When I simply push POWER button in front panel then it turns ON again. >>> >>> PA temp, DC voltage and DC current looks good. I do not believe RFI >>> cause this problem. >>> >>> Any idea ? >>> > -- > 73 de aki > JA1NLX > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
