Hi All, Firstly, thanks for all of your help. I checked the RFCs on the SSB board as per Steve's suggestion and they were OK, although my problem was quite similar (see below). Also, thanks to Frank for your suggestion. As I'm in the UK it is quite cost prohibitive to send the radio to Don. Also, being able to fault-find, align and repair the K2 is part of its attraction.
Secondly, I managed to find the fault!. I noticed that the sensitivity on the transverter input was better than on the antenna input. Probing about on the TR switch led me to the conclusion that RFC3 was not connected properly, leading to excessive loss in D4. Problems with poor soldering on enamelled wire are well known! After re-making the joints of RFC3 I can hear signals down to -130dBm on all bands (with the preamp on). I've still not measured the sensitivity accurately but it does seem to work properly now. I'll re-align everything now for 100% performance. Thanks again for a helpful and friendly group. 73, Paul G4KZY -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-Poor-sensitivity-tp7622862p7622968.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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
