On 26 Oct 2004 14:35:37 -0700, (Stephen) wrote
in :

Hi everyone;

Perhaps someone out here can answer a question. Back in the 1960's I
got my first pair of walkie talkies (100mw, with transmit channel 14).
Anyway, I recall that they seemed to receive all the channels at the
same time (23 at the time),although equipted to only transmit on 14.
That is, I could hear my friends on 14, plus seem to hear truckers on
19, and anyone else in the neighborhood no matter what channel they
were on! This was not bleed-over, but actualy reception on all the
channels of the CB band.

I realize that crystal control on future walkie talkies and CB's at
the time solved that (before PLL), but can someone tell me what a
person would need today to receive all the CB channels at once? I
think it's rather a neat feature, to be able to monitor all 40
channels at the same time, like my small 100mw walkie talkies seemed
to receive all 23 back then. Just a thought! Thanks!

-Stephen


There are a few ways to receive all 40 channels at once. First, you
can use 40 radios. Second, you can broaden the center bandwidth to
cover the entire band, noise and all. Third, you can buy a rather
expensive spectrum analyzer.

If you just want to scan the channels like a regular police scanner, a
few models will cover freqs down to 25 MHz. I've also heard that there
has been a couple scanning CB radios but I have never seen one.





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