QTech Data Systems Tait TM8000 Radio - Manual (Page 20)

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18 Basic operation
Squelch
The radio’s squelch allows the radio to unmute only when the
strength of the incoming signal is above a predetermined
threshold. This means that only signals of reasonable intelli-
gibility are made audible.
Monitor
The monitor function is used to check that the channel is
clear before you make a call. While monitor is on, the green
LED flashes continually.
Activating monitor
1 Press the function key assigned to monitor to override the
signalling mute and allow you to hear any traffic on
the channel.
Note: Your radio may be programmed to activate monitor
whenever the microphone is off the microphone clip.
2 Press the monitor function key again to turn monitor off.
The green LED no longer flashes.
Activating squelch override
1 Press and hold the monitor function key for longer than
one second to override both squelch and the
signalling mute.
This allows you to hear even faint and noisy signals.
2 Press the monitor function key again to return the radio
to a quiet state.
Note: Squelch cannot be overridden when the radio
is scanning.