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Old October 28th 05, 09:12 PM
Owen Duffy
 
Posts: n/a
Default HIGH Q CAPS FOR VLF LOOP ANTENNA?

On Fri, 28 Oct 2005 09:02:14 -0700, Richard Clark
wrote:



That is the point of my questions. They are veiled implications, not
tests of knowledge. No one in your list of links, much less those
I've read over the years knows the PRACTICAL implication of the "I"
and "Q" channels. So, I may as well drop the other shoe.


Didn't Don Stoner describe a synchronous detector way back. I think I
remember reading an article in the mid sixties in "The Sideband
Handbook" or similar.

I was about 15 then, so a detector that had something like 17 bottles
in it seemed overkill when I was copying CW and SSB on an AM receiver
(ie diode detector) with BFO.

The appeal being an all-mode detector (including DSBSC), but
synchrounous detectors didn't seem to catch on in comms receivers,
well not until DSP detection... well I don't recall coming across them
anyway.

Owen
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