I have had a great deal up success using Spectrogram as Don describes. This page is very helpful for understanding what goes on, minute by minute, with the WWV signal.
http://tf.nist.gov/stations/iform.html - David Wilburn [EMAIL PROTECTED] K4DGW K2 S/N 5982 On Mon, 2007-12-31 at 18:32 -0500, Don Wilhelm wrote: > Cary, > > 500 Hz high? Now that sounds like you did the zero beat correctly, but > at one of the WWV tones rather than the carrier. I suggest you try > again. If you want to try an alternate to audible zero-beat, see below > - there will be no confusion about whether you are zero beating a WWV > tone or the carrier. > > You might try an alternate to the Zero-Beating method by connecting the > K3 to a computer running Spectrogram. Tune the receiver in LSB or USB > mode to 10.000.000 and listen to the WWV signal - put markers (pointers) > in Spectrogram at 500 Hz and 600 Hz. WWV transmits one of these tones > on alternate minutes. > > Then enter the CONFIG menu and find REF CAL. Tune the VFO A knob until > the tones from WWV line up with the markers in Spectrogram. > > I consider the above method more accurate than using a frequency counter > of unknown calibration. Of course the audible zero-beat method works > fine too, but there is always the possibility of confusion about whether > one is zeroing the carrier or one of the transmitted tones. The warning > about being certain you are zeroing the carrier goes back to the days > when we were calibrating our secondary frequency standards - one must > wait for a silent minute to be certain we zero the carrier. > > Happy New Year. > > 73, > Don W3FPR > > > > H. Cary III wrote: > > ... I have done the frequency synthesizer alignment using the zero beat > > with WWV but when I tune WWV at 10 MHz, I have to get the dial to about > > 9.999.92 or so to be right on it. > > > > I have a sked on Sundays with two friends, W5ZNN and WA6EBB, and was hoping > > to have my K3 operational so they'd be my first contacts. Well, in a sense > > they were but apparently my signal is about 500 hertz higher than my > > receive frequency AND the audio sounds narrow and broken. I think the > > problem may be with the frequency synthesizer alignment...I used the zero > > beat method until I can get my hands on a frequency counter from some of my > > more electronically astute ham friends...am I looking in the right > > direction or should I be looking somewhere else? > > > > Best New Year Wishes to y'all. > > > > 73, > > Cary, K4TM > > Lynchburg, VA > > _______________________________________________ > > 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 > > > > > > > _______________________________________________ > 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 _______________________________________________ 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
