WiNRADiO G33DDC User’s Manual
61
This results in significantly reduced interference and a much more pleasing
sound.
Squelch
The
Squelch tab
contains squelch-related controls:
The squelch control can be used to automatically mute the receiver when no
signal is being received. Without a signal, all you will usually hear is noise, so
squelch is provided to cut out the noise until a useful signal is received,
making the receiver more comfortable to use.
The WiNRADiO
Excalibur Pro
has three different types of squelch, to
maximize operator convenience:
Level
squelch refers to the received signal strength, as indicated by the
S-meter
.
If the signal strength is lower than the specified threshold, the
squelch will mute the receiver.
Noise
squelch determines the level of noise in the received demodulated
audio above which the squelch will mute the receiver. This is particularly useful
for the FM mode, where there is a considerable level of noise in the absence
of a useful signal. The current
Noise content
value is shown next to the
corresponding control.
Voice
squelch determines the contents of voice frequencies in the spectrum of
the demodulated audio. If lower than the preset threshold, the receiver will be
muted. The voice frequencies content of the currently received signal is also
shown next to the corresponding control.
All three squelch types can operate simultaneously. If one type of squelch is
selected with any other, then
all
selected conditions must be satisfied at the
same time for the squelch to open (a logical "
and
" condition).
