Hi all Yesterday I discovered a problem with my K2/100 (Serial 0413). I am getting around 90 watts out on 80 through 30m but the pwr drops down to 50w on 20m and keeps dropping to about 34w on 10m.
I have a K2/100. It was originally a K2 when I bought it secondhand back in 2004. I upgraded it from ver A to B at that time. Last Christmas I updated the radio adding the 60m/transverter kit K60VX to it and updated the firmware where needed. Over the summer I added the KPA100/KAT100 and the XV144 kits. At the time everything worked and was with in spec when I set it up. After discovering the problem yesterday I took the KPA100 out of circuit and did some tests with the radio at low power. On the LF bands I get about 9 or 10 watts max but when I change to 20m the power drops to 5 watts and them reduces as with the 100w pa in circuit. I put my scope on the input to the K60XV from the band pass filters and then on the output from the K60XV and the levels match what the watt meter is showing me. The radio has the following modules fitted. KSB2 K160RX KNB2 KAF2 K60VX I have taken the KPA100 out of circuit and am still seeing the issue with the base radio so I cant see it being an issue with the KPA100. The base K2 used to produce 15 watts key down. Not having done any faultfinding on the K2 before could someone guide me as to the best place to start. Regards George GI4SJQ _______________________________________________ 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
