RadioBanter - View Single Post

July 26th 05, 11:36 PM

wrote:
Hi Group,

I am looking at moving the old CB up to 10meter CW/SSB, One thing I
have never seen is the addition of a BFO circuit to copy SSB and CW.

The radio has a first IF of 10.695 MHz and the next one is 455KHz.

I believe that 455KHz is the place to add the BFO and I think that the
455KHz IF must be mixed with another frequency, say either +/- 1KHz to
get the sidetone.

I don't know if this would work for SSB reception?

How about Double-side band modulation, it would have both LSB and USB
but at least it would be interesting to experiment with.

If you know of a circuit or article, please post.

I look forward to your posting.

Paul
KJ4UO
EM60

Why would you want to re-invent the wheel !!!

There are millions of old 40 channel AM/SSB Cb sets available that are
easily convertable to Ten Meters with a exacto knife and a bit of solder

IS THIS A TROLL !!!

Yukio YANO