John: I checked it at the time. 13.3 Vdc reported by the K3 meters. It seems solid (big Astron RS-50M) , and likely did not drop while operating.
73, Jeff PJ2ND / K8ND ****** This first thing I would do is check the voltage at the radio. There is a voltmeter in my K3S so there probably is one in the K3. You could have a power supply issue or just low voltage in Curacao. I try to maintain 13.5V on TX. John KK9A -------- Original Message -------- Subject: K3 Power Drop During Operation Date: Thu, 25 Jan 2018 06:54:48 -0500 From: jma...@k8nd.com To: elecraft@mailman.qth.net Cc: genes...@gmail.com I was running some stations on 160-meters this morning, and noted that the power output had dropped from the amp. Further investigation found that the maximum power out from the K3/100 was reduced from ~100W to about 54W, with no error messages displayed on the K3. Advancing the 'PWR' control beyond 54 W made no difference. I stopped operating, and found that the power slowly restored, first to a maximum of 84W, and then back to the normal 100W maximum. I assume that this is an issue with temperature? The ambient temperature was cool (A/C running in shack). I have not noted this problem before. The fan was set to 'Config > KPA3 > PA nor'. recommended setting for hard contest use? 73, Jeff PJ2ND / K8ND ______________________________________________________________ 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
