Well, I'm afraid to raise my head after this. About two weeks ago I raised the question here on the reflector about realigning my K2. My initial alignment had went relatively well but did not use Spectogram. After encouragement from several people to give it a go I dived right in.
It went real smooth until I got to the SSB filter calibration. Levels shifted between filters, the filter widths were much too wide on all settings and the S meter was dead on several filters. I posted several questions here on the reflector and to different individuals including Elecraft Support. At one point I was convinced I had the problem under control. Then after more test it was obvious something was wrong. All the guidance I received was good but didn't correct the problem. Something was still wrong. This morning I was digging thru the reflector archives looking for help. I found a response back in 1999 to someone from Wayne at Elecraft about something somewhat similiar. He mentioned that a voltage chart was being released for the SSB module and check all voltages with it. After finding the chart I measured voltages and found the cathode of diode D6 on the SSB module was several volts low. To shorten a long store the diode was installed backward by me when the K2 was built almost a year ago. Reversing the diode corrected the problems. The filters probably need a little more tweaking but they are much better now. I've not been a big filter user on the K2 so really did not previously have a good feel as to how they were operating or should operate. The radio is just about good enough without filters. My thanks to all for their patience and understanding. It is hard to believe all that has happened with this radio since I started with it and now to find I had installed a diode backwards. I'm sure I will be shaking my head on this one a long time. 73, Jim, AB0UK K2/100 S/N 4787 __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
