Good morning to all.... First of all my K2 (base CW) is finally complete and has passed all of the basic tests with flying colors. Now that I can receive on all bands, I decided to go back and do a more thorough calibration of the 4MHz reference clock and then start on the filters before moving on to build the SSB module and the 100W amp. After reading through some of the reflector archives, checking some of other resources on the Elecraft site and passing some emails back and forth with Tom, N0SS, I finally got a good understanding of how the calibration works and what needed to be done. I am able to get pretty close, in fact I had it within 50Hz to start with, and at one point had it at about 23Hz off. However, that is about as good as I have been able to get it. Once I get to a certain point, just breathing seems to move the frequency when adjusting C22. I know I am really close, but I would love to see if I can really get it closer. So my question for the group here is there any way to make C22 not so sensitive to even just touching it with an alignment tool?? I have read where some have added a cap in parallel with C22 to "extend" the range, but would this also help it to not be so touchy to adjust?? Or should I just look to replace C22 entirely with a different cap??
I know I shouldn't be quite so picky, but hey, that is the fun of building the radio. You can tweak things and make it do what you need/want it to do. I also must say that I am REALLY impressed with this radio so far. It does receive very well, and the filters seem to be working VERY well with just the default alignment. I am really getting excited to see how well it will work once I get Spectrogram and "do it right". Anyway, thanks for letting me ramble on here and thanks in advance for the help!! 73! Vern -- KC8YOH __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ 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
