http://elecraft.85.s1.nabble.com/K2-frequency-adjustment-tp445744p445747.html
> -----Original Message-----
> From: Don Wilhelm [mailto:
[hidden email]]
> Sent: Monday, April 16, 2007 7:49 PM
> To: Brett gazdzinski
> Cc:
[hidden email]
> Subject: Re: [Elecraft] K2 frequency adjustment
>
> Brett,
>
> Since you can probably hear 10 MHz WWV at your QTH, why not use that
> signal in LSB or USB to set C22 very accurately. The method
> to do that
> is on the Elecraft website on the Builder's Resource page.
>
> I also recommend that one use Spectrogram to tell when WWV is tuned
> 'just right' - I place markers at 500 and 600 Hz and watch as the
> transmitted tones line up with the markers. Once you get it
> right, you
> can expect proper dial calibration within 20 Hz typically. The whole
> procedure is in the K2 Dial Calibration article on my website
>
http://w3fpr.qrpradio.com>
> When you are done, if the K2 tunes in WWV in LSB or USB mode with
> accuracy, all bands will also be accurate. Then if you find yourself
> off frequency, you can blame the other radio.
>
> 73,
> Don W3FPR
>
> Brett gazdzinski wrote:
> > Funny, I had today off and decided to do the same thing.
> > I used the 756 pro as a source, did the adjustment, redid
> > all the filter bfo settings, and went from 4000 Hz off to about 500,
> > but I could not tell as I could not zero beat and did not think
> > of changing the filter.
> >
> > When both the 756 and the K2 are tuned to the same frequency,
> > they hear each other, but at maybe 400 or 500 Hz differences.
> >
> > Close enough for me anyway...
> >
> > Last time I did my filters, I paid a lot of attention
> > on getting things to sound the same between filters and
> > CW normal and reversed.
> > Tune a signal in spot on the nose (same as sidetone) and
> > switching between cw normal and reverse does not change the pitch.
> >
> > That is useful if you have qrm on one side.
> >
> > Listening on CW or ssb and changing filters does not change the
> > pitch any, which is nice...
> >
> > The radio really does work well!
> > I enjoy listening to cw (at speeds to fast for me to copy)
> > for hours! ssb sounds good in the headphones, the little speaker
> > inside the K2 does not really cut it for ssb...
> >
> > Brett
> > N2DTS
>
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