HNY 2011. Just built an XV432 transverter and am a bit stumped - Alignment was tricky as the output power keeps dropping as it heats up. Something's not right, looking for suggestions. I get about 13-15W out and it drops to about 9W after 1min, down to 6W in 5mins. Using signal generator. If I crank the drive up, I will get more out, but see the overdrive leds start to come on. I've checked all test points and voltages, and only ones atypical are:
U7 (RF module) Pin 3 is 2.25V instead of 3.5-4.5 per manual. TP5 8.0V and drops as things heat up. TP6 is 1.9V @13-15W Also, TP1 4.95V instead of 2.2 nom (I'm not worried about this - its LOsc). Any ideas? 73 VE3MSC Colin ______________________________________________________________ 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
