[Elecraft] K1 - Moving the range of 40 meters from 7.100 up to 7.125?

[Don Wilhelm]

Kieth,

If you want to move only 40 meters, you must change the 40 meter crystal 
on the 4 band board- you will have to find a fundamental mode crystal 
that is 25 kHz higher than the one you have currently installed - most 
likely a special order from a crystal manufacturer.

It is easier to move all 4 bands upward.  Just spread the turns on L1 to 
obtain the low frequency end point that you want.
You will likely loose 30 meter coverage unless you change the crystal to 
the one normally used for the 150 kHz VFO range.

All in all, my opinion is that you would be better off installing the 
150 kHz range capacitor.

You may find a bit of benefit by re-peaking the bandpass filters for the 
new range, but it probably is not necessary.

73,
Don W3FPR

K Price wrote:
> I have the K1 FL1-4 (40, 30, 20, & 17) installed and working!  My receive range is as follows:
>
> 40  - 6.999 to 7.099
> 30 - 10.093 to 10.193
> 20 - 13.993 to 14.093
> 17 - 18.043 to 18.143
>
> I really am most interested in 40 meters and would love to work from 7.030 up into the Novice section.  Is there a way to move the bottom of my range up to 7.025?  What else would that impact?  Would I need to re-peak the filters?
>
> Many thanks and having a blast with #2793
>
> Keith Price (WA5LPW)
> 901-763-1275 (home) / 901-409-1432 (cell)
>
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