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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