Hi all
This may save you some time. The beacon design uses the standard harmonic
output filter designs used by the GQRP club documented here
. So a good starting point will be the one
for 20 meters. You might find that the 2n7000 will not put out much output
power at 20 Meters, but hey, this is QRSS and we dont need much output power
:-)...
Please note people, that you may also need to reduce the value of the capacitors in the base/emitter of the Colpitts oscillator. They are 220pF in the 30m version. I think for 20m I think I would be tempted to start with a first guess of 150pF and see if that worked.
73 Hans G0UPL
