11
Receiving a Call
Your radio remains muted until there is activity on the channel
to which it is tuned. Listen for your own call sign, and re-
spond promptly when you hear it. The BUSY indicator lights a
steady green whenever there is any activity on the channel.
You may not hear this activity due to muting. To remove mut-
ing, one of the function keys may be programmed as a Moni-
tor key. This key may be programmed to override one or more
muting possibilities.
Monitor Key
The Monitor key (a preprogrammed function key option) disa-
bles muting options installed on your radio.
There are three types of muting control which may screen your
calls:
RF squelch
Permits reception only if a call has a
signal above a factory-set threshold.
This ensures that only intelligible sig-
nals are made audible.
CTCSS/DCS mute
Permits reception only if a call carries
an inaudible tone or code specific to
your fleet or group.
Selcall mute
Permits reception only if a call carries
a special (audible) tone sequence at the
beginning which represents your iden-
tity number.
Note:
RF Squelch is always programmed to operate in your
radio, but CTCSS/DCS or Selcall mutes may also operate, de-
pending on which options are fitted to your radio and the way
your radio is preprogrammed.
Summary of Contents for T3010II
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