For the past few months, I have had intermittent receive de-sense with my K3/100-F, Serial 1523. Firmware 5.14, 2.13, 1.19 installed this week, but de-sense was there with previous firmware.
Intermittently receive sensitivity will drop about ten dB. Usually happens after transmitting, but sometimes happens spontaneously with no transmitting. A dit usually restores sensitivity. If I don't dit, sensitivity randomly restores itself. CW, SSB, RTTY. All contest bands. (Don't do WARC.) I have one-by-one eliminated my BCD antenna-switches, my ACOM amplifier, and my antenna/dummy load switch. With these items in or out of line, I still get intermittent de-sense. Which leads me to believe the problem is with the K3 itself. (It could be one of my coax patch cables, but I suspect not.) KXV3 installed, but use ANT1. SUB installed. Intermittent de-sense with and without SUB engaged. Suggestions? 73, Hank, W6SX ______________________________________________________________ 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]

