ICOM 272103 Manual De Usuario

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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.