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MDC 1200 SYSTEM OPERATION
n
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, Stun, Revive, Status, Messaging and
Emergency signaling. This operation is usable with transceiv-
ers whose revision number is 1.7 or later.
An additional feature of MDC 1200 system found in Icom
transceivers 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.
Set one of the programmable keys for MDC 1200 system op-
eration.
NOTE: During MDC 1200 system operation, APCO 25
system operation is not usable.
n
Receiving a call
D
Receiving a SelCall
q
When a SelCall is received;
• Beeps sound.
• The LED indicator (for Handhelds) or Busy indicator (for Mo-
biles) lights green, or blinks orange (for Non-display types).
• “
”
(for Handhelds) or “
” (for Mobiles) blinks*.
• “ ”
(for Handhelds) or “
” (for Mobiles) appears*.
• The calling station ID (or alias) and “
SELCALL” are displayed
alternately*.
w
Hold down
[PTT] and speak into the microphone.
e
Release
[PTT] to receive a response.
* Simple and 10-key types only.
For Handhelds:
For Mobiles:
S E LC A L L
SELCALL
MDC SELC CALA
I D
1 2 3 4
ID 1234
MDC SELC CALA