Signal detection

From: Allison J Parent <allisonp_at_world.std.com>
Date: Fri Apr 16 19:25:48 1999

<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?

Static is inchoherent radio signals (random). generally they are far
weaker so the selection is done on signal strength or in the case of FM
modulated systems reduction in received noise. Actually it's fairly
simple.

Allison
Received on Fri Apr 16 1999 - 19:25:48 BST