Fred, Does this condition also happen on SSB, RTTY, CW or only while running digital mode?
Is it possible the PTT/key line is being dropped? When the power drops is there an asterisk (*) on the left side of the KPA500 display? An asterisk will appear on the left side of the LCD display if there is a valid PA KEY/ PTT signal is being received from the transceiver. If there is no asterisk the amp isn't receiving a valid PA KEY/PTT signal from the transceiver. If there is an underscore instead of an asterisk it means that the amplifier keying is being inhibited by a low signal on pin 11 of the AUX connector. Ken WA2LBI On Mon, Jul 1, 2019 at 9:06 PM Fred <thegoec...@gmail.com> wrote: > Hi, > > I have a K3, P3, KPA500, KAT500 and a SignaLink for sound. Sometimes when > I transmit on FT8 running full power on the KPA500, the KPA500 will click > on/off. The power doesn't turn on/off, it seems like a relay inside. The > power meter will go to about 500 watts, then down to 0, then to abut 500 > watts...and down to 0 maybe once a second. I have a short video I can send > if someone would like to see it. When I bypass the KPA500 and use 50 watts > or so just on the K3, no issues. > > Please let me know if you have any questions. > > 73, Fred > > KD8ZYD > -- > Thanks, > > Fred > > ______________________________________________________________ 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
