16 Apr
1999
16 Apr
'99
3:29 p.m.
Could anyone tell me how a radio detects signals vs.
static? There is a
little gauge on my radio that moves depending on the amount of noise vs.
signal. I would guess that the digitally tuned radios that skip over the
frequencies that are pure static work in the same way. What is this way?
Generally the gauge is a reading of the AGC (automatic gain control)
level being applied by the radio's IF. There are many other ways to derive
this signal, but this is the most common one.
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
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