Hello All, I have almost same issue with K3S and KAT500/KPA500.
I only need about 22w max to get 500w on all bands except 40m where drive must be 25/26w. First couple of "dits" light up the 700w red LED but never trips the amp. After that, it operates normally. At first thought it was amp but discovered it was the K3S. It appears after a band change but not all the time. First couple of dits show 40w output, then normal after that. Traveling now and when next home will see what happens when I use my K2/100 with the amp. Yes, have done the 5 and 50 w TX gain cal procedure, twice. I also have low voltage of 56v and with tap at max for regular 110v service. Ele support told me that below 60v should be ok, so I just live with it. And with the occasional 700 LED lighting up. This has been going on for over a year and with lot of operating, mostly cw, in contests, running pile ups etc. Yes, I do have several of CMC chokes by Balun Design, My Antenna plus extra two or three large chokes with 8 turns of RG8X passed thru. YC would smile! 😎RF does not seem to be an issue here. See QRZ.com HP1XT for description of antenna system. Not wishing to hijack the thread; will be watching closely to see how this is resolved. 73 y GL Tom ______________________________________________________________ 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
