If my memory is correct, the PSK-20 is used for, well... PSK.

That being the case, I think you might find it difficult to get adequate
frequency stability using a free-running VFO. Since the PSK decoder
software automatically gives you about 2KHz of tuning in software, a PLL
approach would be quite easy and should produce a clean spectrum if done
properly. I think a DDS solution would also be quite good for this
application

Joe
W3JDR


"k9jri" wrote in message
ups.com...
I am looking for a contruction artical or some other starting point for
a solid state 5 to 5.5 mHz. VFO to use with my PSK-20. Hopefully
somebody can point me to a contruction project, a kit or a source of a
VFO.