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MDC 1200 OPERATION
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MDC 1200 system operation
The MDC 1200 signaling system enhances your transceiv-
er’s capabilities. It allows PTTID*, Emergency signaling, and
receiving a Radio Check. Also, the dispatcher can stun and
revive transceivers on the system.
An additional feature of the MDC 1200 system in Icom trans-
ceivers is called aliasing. Each transceiver on the system has
a unique ID number. Aliasing allows substituting an alphanu-
meric name for the ID number. When transmitting, you can use
this alias to select a transceiver to call. When a call is received,
the alias of the calling station is displayed instead of the ID.
* When [PTT] is pushed or released, the transceiver transmits your
station ID.
NOTE:
During MDC 1200 system operation, IDAS opera-
tion capability is disabled.
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Receiving a call
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Receiving an Emergency Call
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When an emergency call is received:
• Beeps sound.
• The calling station ID (or alias) and “EMG EMG” are alternately
displayed.
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To stop the beep and display indication, turn OFF the
power, change the channel or push [PTT].
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Receiving a Stun and Revive
The dispatcher can send MDC 1200 system signals that
will stun or revive your transceiver. If a Stun command that
matches your station ID is received, the transceiver will dis-
play “SORRY” (default) and you cannot receive* or transmit.
When a Revive command that matches your station ID is
received, normal operation is restored and “SORRY” disap-
pears.
(* Except Revive command signals)
