David, Bypass that - that initial "4 MHz Oscillator Test" is just to make certain the 4 MHz oscillator is working. What you are doing is comparing the 4 MHz oscillator output to what the firmware "thinks" is a 4 MHz source. So as long as it is oscillating, the test will always pass.
If calibration of the 4 MHz oscillator is your goal, and you have the K2 capable of receiving WWV (or some other station of known frequency), go to my website www.w3fpr.com and look at the K2 Dial Calibration article. The N6KR method will provide you with precise setting of C22 with no external equipment, and that method compensates for any variables in the various oscillators involved. The use of Spectrogram or other audio spectrum analyzer software to detect the tones transmitted by WWV is strongly recommended. Tuning to the "standard" station correctly is the key to success when using that procedure. 73, Don W3FPR On 8/27/2011 3:30 PM, David Dietrich wrote: > Hi Everyone! > > I am starting the second part of the K2 alignment. I went and redid the > first part of the alignment because I tweaked R1 by accident. Some of the > numbers came out different than the last time because I had more stuff on the > board. > > I do have a question about the 4 MHz Oscillator Calibration: > > This may sound like a stupid question, but what am I supposed to be listening > for on my receiver when I zero-beat to the crystal? I am hearing a tone, and > it changes when I adjust C22, but I am not sure to what tone I need to adjust > it to. > > Any clarification on this would be great! > > Thanks& 73, > > David > KC9EHQ > ______________________________________________________________ > 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 > ______________________________________________________________ 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
