Mdc 1200 System Operation; Transmitting A Call - Icom iF34GT Instruction Manual

■ MDC 1200 system operation

The MDC 1200 signaling system enhances your transceiver'
s capabilities. It allows PTT ID*, Selective Calling (SelCall),
Call Alert, Radio Check, Messaging and Emergency signal-
ing. Also, the dispatcher can stun and revive transceivers on
the system.
An additional feature of MDC 1200 found in Icom transceiv-
ers is called aliasing. Each transceiver on the system has
a unique ID number. Aliasing allows the substitution of an
alphanumeric name for this ID number. For transmit, you can
use this alias to select a transceiver to call. For receive, the
alias of the calling station is displayed instead of the ID.
The following section describes the operation of the MDC
1200 features using the alias function. The SelCall, Call Alert
and Radio Check features can also be used with direct ID
code entry from the transceiver keypad. (p. 30)
Please note that your dealer has set one of the programma-
ble keys (P0, P1, P2, or P3) for MDC 1200 operation.
*When [PTT] is pushed or released, self ID is transmitted.
MDC 1200 SYSTEM OPERATION

■ Transmitting a call

D Transmitting a Sel Call
SelCall allows you to make a call to a specific station or to
a particular group. Other MDC 1200 system transceivers on
the channel will not receive a SelCall that does not match
their station or group ID's.
q Push [MDC Call] to enter the MDC menu selection mode.
• Or push [MDC Selcall] to enter the transceiver alias selection
mode. In this case, skip step w.
w Push [MDC Call] again to enter the transceiver alias se-
lection mode.
e Select the desired alias using [CH Up], [CH Down], [MDC
Up] or [MDC Down].
r Push and hold [PTT] to transmit the SelCall to the se-
lected station, then speak into the microphone.
t Release [PTT] to receive.
SELL CALL is displayed.
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