If the equipment is fitted with CTCSS and/or selective calling, the busy indicator and the transmit
inhibit facility are both defeated whenever a valid call is received, so that you can respond to the
call.
1.5.5.2
TRANSMIT LIMIT TIMER
The transmit limit timer limits the duration of the transmission. The transmission time may be set,
in steps of one second, from 1 to 255 seconds. On expiry of the timer the transmission will cease
and a continuous audible alarm will sound while the PTT switch is held pressed. To re-initiate
the transmission the PTT switch must be released and then pressed.
1.5.5.3
TRANSMIT RE-PTT TIMER
The transmit re-PTT timer limits the minimum time between the release of the PTT switch, and
the pressing of the PTT switch for the next transmission. The minimum time may be set, in
steps of one second, from 1 to 255 seconds. If the switch is pressed during this time a
continuous audible alarm will sound while the PTT switch is held pressed.
1.5.5.4
TRANSMITTER/RECEIVER LOCKOUT
These facilities are usually programmed together and only on carefully controlled 'closed'
radio systems. On such systems users are prevented from listening to the channel.
1.5.5.5
CTCSS (CONTINUOUS TONE CONTROLLED SQUELCH SYSTEM)
When CTCSS encode only is fitted a sub-audio tone accompanies every mobile transmission.
If the CTCSS decode is supplied, no communication will be heard unless the incoming
transmission contains the correct CTCSS tone.
CTCSS decode can be bypassed by any of the following (if programmed):-
Removing the microphone from its cradle.
By enabling the monitor button.
1.5.5.6
MICROPHONE CRADLE OPERATION
Depending of the options programmed, the cradle can affect the operation of the transceiver in
any of the following ways:
Mobile may transmit Automatic Number identification whenever the microphone is
removed from its cradle.
Mobile may enter Monitor mode whenever the microphone is removed
from its cradle. Calls may be reset whenever the microphone is returned
to its cradle.
Scanning will only be active if the microphone is in its cradle.
If the microphone is removed from its cradle while the scan has stopped on a
channel, that channel will remain selected until the microphone is returned to its
cradle.
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