Companding; Local/Distance - Motorola CM340 User Manual

COMPANDING

Companding is a collective term to define
compressing the audio signal on transmission and
expanding the audio signal on reception. The
overall effect is to reduce noise in the received
signal, giving you crisper, clearer audio clarity.
Companding should only be used when other radios
in your system have the same companding feature
available.
You can switch Companding On or Off by using a
pre-programmed Companding button.
1. Press the Companding button to switch Com-
panding on, when the feature enable alert will
sound.
2. Press the Companding button again to switch
Companding off, when the feature is disabled
an alert will sound.
LOCAL / DISTANCE
Distance is the standard mode of operation, and
maximises receive radio range.
Local reduces interference from other radios in
close proximity and is typically used for base station
configurations.
You can switch between Local and Distance by
using a pre-programmed Local/Distance button.
Using the Local/Distance Button
1. Press the Local/Distance button to switch to
Local when the feature enable alert
will sound.
2. Press the Local/Distance button again to
switch to Distance when the feature
disable alert will sound.
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