Stef,
I have not done it, but I can explain how to do it.
Start with a crystal that is 8MHz above the lowest frequency you wish to
tune.
Then tune the premixer bandpass filter to 3100kHz lower than your
crystal frequency - I would start with the capacitor values from the RF
bandpass filter for 30 meters.
You may have to experiment with the capacitors for the 60 meter RF
Bandpass Filter. If you have the 40 meter bandpass filter capacitors,
you can add padder capacitors to them to bring the frequency down, or
use filter design software to figure out what the capacitors should be.
73,
Don W3FPR
On 4/28/2017 7:33 AM, DM5TU / VY1QRP - sTef wrote:
Dear Gang,
did anybody of you ever managed to bring the K1 succesfully to 60m?
As the band (15KHz from 5.351.5 - 5.366.5 MHz) is now legal in Germany I am
in the need of a 60m rig.
So please let your thoughts roll out to the group.
Thanks for your help.
72/73 de
sTef
DM5TU / VY1QRP
DL-QRP-AG *GM*
GQRP #8769
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