David, Spreading the turns of the low pass filter toroids may give you a better spread of power across all the bands. With a 13.8 volt supply, I typically expcet close to 4 watts on 80, 40 and 30, and about 3.5 to 3.8 watts on 20 meters using a 14 volt power suppy. Yes, the major contributor to power output deviations from these values is the L1 and L2 toroid inductors. The transformer T1 is a secondary candidate for power output vsriation.
Proper caslibration of the KXAT1 wattmeter is essential to determining the actual power output, but the difference between bands is likely a function of the Low pass filter inductance. 73, Don W3FPR > -----Original Message----- > > I just finished installing my KXB3080, which seems to work fine. > Using my DL-1 > dummy load I noted the following power ratings? > > When I first tested it I got the following power readings with R4 fully > clockwise: > > full power: > 20m: 2.8w > 40m: 3.5w > 30m: 3.7w > 80m: 6.3w > _______________________________________________ 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
