I just finished the KX1 kit and without the tuner, power output into a 50 ohm load is about 10W on 80M, and 4W on 40M, 30M, and 20M using a Bird meter, 50W slug. However the ATU which seems to work well in all testing, all the relays click, etc., in TUNE the power starts out at a reading of about 3 watts (40, 30, 20...a watt higher on 80) and falls off in about 2 to 3 seconds to about .5 watts. The Bird meter shows exactly the same power fall off. Also the SWR reading in all cases reads 1.0 using the dummy load. So it seems like something is heating up (don't feel any heat anywhere) and the power falls off...but it still always reads an SWR of 1.0 when I go out of TUNE. When I remove the ATU and install the jumper the power is steady for all bands (just higher on 80M).
When I activate L0 thru L3 and C1 thru C3, I get a significant change (normal) in SWR cycling thru L0 thru L3, but cycling thru C1 thru C3, the SWR seems to just change from 2.0 to 2.1 to 2.0 Not sure what to look at... ----- Chuck, KE9UW -- View this message in context: http://elecraft.365791.n2.nabble.com/KX1-ATU-causes-power-to-drop-off-tp7557109.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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
