Re: Turn of BFO mod

Arv Evans


This is an SSB radio.  It requires the BFO to heterodyne the IF frequency to audio.

It might be possible to convert it to an AM radio by building a non-SSB detector to 
connect ahead of the heterodyne style detector circuit.  Why stop at AM?  Might 
also be interesting to add an FM style IF section and FM detector!

Another possibility is something like the rather old "Q-5'er" which would be an AM 
receiver tuned to the IF frequency and connected ahead of the SSB detector.
This might work, or might be plagued with BFO leak-through, unless the BFO were 
set way off the IF frequency or even turned off for AM mode.

All desires for the SSB transceiver to do something that it was not designed to do 
may be possible, and many on this group have dome some of these mods.  What 
is required to successfully modify the original circuit and original software is a good 
knowledge of how the system actually works, and how to design suitable 


On Thu, May 28, 2020 at 5:28 AM Jeff Debes <jeff.debes@...> wrote:
Is there a way/mod  to turn off the bfo to listen to AM signals?


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