[Elecraft] K1 tuning range issue.

[Don Wilhelm]

Gil,

Move the VFO frequency (L1 turns spacing) so the VFO frequency is closer 
to 3.090 kHz.  That will raise the frequency of the output signal a bit.
See page 38 of the manual "VFO Range Adjustment".

There does have to be some "wiggle room" at the bottom of each band 
because of the variance  in the 'real' frequency of the crystals on the 
band board.
If one were to replace those crystals with custom made precision 
crystals, you could get the bottom of each band to line up with the 
bottom of the other bands, but that would be expensive.  I don't know 
what the frequency tolerance is on the stock crystals, but the 'wiggle 
room' is necessary with crystals at a price point that is affordable for 
most hams.

73,
Don W3FPR

On 6/18/2015 12:28 PM, Gil G. wrote:
> Hello,
>
> After selling my K1, what a mistake, I just had to buy another one...
> This one was built already. It has the following tuning ranges:
>
> 6098.2 - 7077.5
> 10092.2 - 10170.7
> 13092.6 - 14071.1
> 20990.5 - 21069.1
>
> I want to bring the frequency up to the bottom of each band. I wonder
> though, why the disparity between the 1.8kHz below bottom on 40m and the
> other bands, the worst being 15m at 9.5kHz below band bottom?
>
> When I built my first K1 I remember all four bands were pretty close to
> each other as far as range is concerned.
>
> What do I do?
>
> Thanks,
>
> Gil.
>
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