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5
MDC 1200 OPERATION
D Transmitting a Message
The transceiver can send a pre-programmed message to
the dispatcher. There are 16 messages that can be sent on
a channel.
q Push [MDC Call] to enter the MDC menu selection mode.
w Select “MSG” using [CH Up], [CH Down], [MDC Up] or
[MDC Down].
e Push [MDC Call] again to enter the pre-programmed mes-
sage selection mode.
r Select the desired message using [CH Up], [CH Down],
[MDC Up] or [MDC Down].
t Push [PTT] to transmit the message to the dispatcher.
• “MSG TX” is displayed.
y Release [PTT].
• “MSG OK” is displayed.
• “MSG FAIL” is displayed if there is no acknowledgment from the
dispatcher.
u After a specified time period has passed, the transceiver
will return to receive.
D Emergency Calls
The MDC 1200 Emergency feature can be accessed using
the [MDC Emg] key (p. 10). The optional UT-124 man down
unit can also activate this feature. The transceiver will
repeatedly send an Emergency MDC 1200 command to the
dispatcher for a programmed length of time until it receives
an acknowledgement signal.
The emergency call can be transmitted without a beep emis
-
sion and LCD indication change depends on the setting.
With MDC 1200 Emergency, the transceiver can also be
programmed to keep the microphone open during an emer-
gency call, allowing monitoring of the situation.
Ask your dealer for details.
D Stun and Revive
The dispatcher can send MDC 1200 signals that will stun or
revive your transceiver. If a Stun command is received that
matches your station ID, the transceiver will display “SORRY”
and you can not receive or transmit. When a Revive com-
mand is received that matches your station ID, normal oper-
ation is restored.
Pre-programmed message is displayed.
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