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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