I have several Si5351 boards already and was thinking of using one as both the
VFO and the 20MHz LO. I'm new to hacking on RF design like this, so forgive me
if this is a stupid question, but is there a reason not to do this? I could
control the USB vs LSB frequency shift in software, and could even implement an
IF Shift feature for a little bit of filter control.
Second potentially stupid question: can I use the first stage RF -> IF mixer
design as the second IF -> Audio mixer too? I'm laying out the sections as
individual boards to be fabbed by OSH Park, and would love to just reuse a
section if possible.
Thanks for your help!
-Mark
