K2 alignment

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K2 alignment

Phil Shepard
I have a seven year old K2 that has not been aligned since the initial
testing.  It works well, but I notice that the VFO is off a bit.  I'm 70Hz
low on 40m, 100Hz low on 20m and 20Hz high on 15m, etc.  Given the age of
the radio, is it recommended to do a full alignment, or should I just
address the frequency issues?  What parts of the alignment procedures should
I perform?  Thank you.

73,
Phil
NS7P

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Re: K2 alignment

Don Wilhelm-4
Phil,

If the K2 has been properly aligned before (R30 voltages, bandpass
filter tuning, L34 tuning, SSB carrier balance and AGC settings), those
things should still be in good alignment unless something in those areas
was repaired in the meantime.  K2s that I have worked on hold those
settings even after several years.  I do find that many K2s have never
been properly aligned, so make your decision on your confidence level
for the prior alignment.

So I would suggest that you just do the C22 setting, CAL PLL and CAL FIL
to get the dial calibration on target.  For what I believe is the
easiest way to do that, go to my website www.w3fpr.com and look at my K2
Dial Calibration article.  The use of Spectrogram or other audio
spectrum analyzer to verify the proper tuning of WWV is highly recommended.

73,
Don W3FPR

On 11/22/2011 12:26 AM, Phillip Shepard wrote:

> I have a seven year old K2 that has not been aligned since the initial
> testing.  It works well, but I notice that the VFO is off a bit.  I'm 70Hz
> low on 40m, 100Hz low on 20m and 20Hz high on 15m, etc.  Given the age of
> the radio, is it recommended to do a full alignment, or should I just
> address the frequency issues?  What parts of the alignment procedures should
> I perform?  Thank you.
>
> 73,
> Phil
> NS7P
>
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Please help support this email list: http://www.qsl.net/donate.html