Jim, Gary has a point that I had forgotten about - and yes it can make a difference on 40 meters too.
Before concluding that this is your problem (although the changes have been put into new KPA100 kits), take a look at the RF envelope on a 'scope looking for any evidence of 'modulation' on the CW signal. It will vary by band and by the power level - if you see a nice clean RF Envelope, this is likely not your problem (unless it is too small to observe). 73, Don W3FPR > -----Original Message----- > > Jim, > Read the following document, which might help. There is a spur generated > on 80 meters in some KPA100's caused by a resonance in the TR switch > components. Easily fixed with a 1K resistor soldered across one of the > inductors. Won't help 40 meters though. > > > http://www.elecraft.com/manual/E740035E%20KPA100%20errata%20rev%20C-3.pdf > > 73 > Gary, N7IR > _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
