You may wish to check the power supply current drawn for the maximum output power on each band, If it decreases when you select the higher frequency bands there probably is a RF drive level problem.
If the current is high on the higher frequency bands then you have a problem with the output impedance matching filters etc as you stated. How are you measuring the RF output power ? On my K2 with the KAT-2 Bypassed I get only 8W out on 10M @13.8V the KAT-2 has some insertion loss. The lower bands are at least 10W or above 73, Bob Johansen WB2SRF _______________________________________________ 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

