Think of the squelch setting as a threshold for allowing modulated signal
through to the audio amplifier.

The higher the squelch setting, the stronger the modulated signal (voice)
has to be in order to "break through" to the audio amplifier. If the
squelch is too low, it takes very little modulated signal. If the squelch
is off, everything comes through as noise.

Normally the squelch should be set just above where the noise stops so that
any desirable signal above that level will get through.

- Doug


"RedPenguin" wrote in message
ups.com...
I know this probably will sound like a newbie question but I have
actually been using scanners for a long time. I currently own a Uniden
BR330T.

I do not 100% understand Squelch. I know it's pretty much a noise
control, but I don't really get when you set it to a lower number and
when you set it to a higher number. By default my scanner program sets
my BR330T to 4. I noticed if you have no squelch, every station
basically becomes static but no squelch on an older scanner, doesn't
make it do anything.