[Elecraft] K3 question/problem

[David Wilburn]

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
k4dgw at k4dgw.com
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
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