Probably better to go with the later VXO receiver design, but using the PTO rather than the VXO. That receiver has a much better front-end. Adding the diplexer mentioned in the article would improve its performance too.
If I build a PTO again I'll likely use a more conventional oscillator configuration. Also, for 40 metres and above I'd break up the inductor into a fixed toroid plus the PTO coil with some experimentation to get a good bandspread.
30th January 2008 12:55
A.P wrote ...
thanks for this PTO insight.I followed and got it built.It is a very nice and simple design.Might even build the featured receiver .
30th January 2008 13:18
Alan Yates wrote...
Probably better to go with the later VXO receiver design, but using the PTO rather than the VXO. That receiver has a much better front-end. Adding the diplexer mentioned in the article would improve its performance too.
If I build a PTO again I'll likely use a more conventional oscillator configuration. Also, for 40 metres and above I'd break up the inductor into a fixed toroid plus the PTO coil with some experimentation to get a good bandspread.