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Emergency Mode
To activate Emergency mode, press and hold the Emergency button (must be programmed as
Emergency) for about ½ second. The emergency mode remains active indefinitely until
deactivated. To deactivate, press and hold the button again, or turn the radio off and on.
Emergency channels are setup using the keypad (
refer to “Global Submenu”).
If the Emergency
setting (
EMG
)
is left empty, the current channel serves as the emergency channel. In P25 mode,
the emergency bit is set. Since analog modes have no similar function, the radio performs an
open-mic function for the duration and interval programmed by the PC Programmer.
Two types of operation are available for the emergency mode: Normal and Silent. The operation
is selected from the PC Programmer or the keypad (
refer to “Global Submenu”).
In Normal
Emergency mode, each time the radio transmits or receives emergency signals, the LED flashes
orange, an audible alarm is sounded, and the display indicates
EMERGENCY
. In Silent Emergency
mode,
EMERGENCY
still displays but the flashing lights and sounds are disabled.
Transmitting P25 Individual Calls
P25 radios include a feature that allows an individual radio to be targeted to transmit to. This is
accomplished by the unique UnitID that all radios can be programmed with, and transmitted in
the P25 CAI waveform. This UnitID can have a value of 1 to 9,999,999 (decimal).
Note:
If secure communications is desired, use encryption keys. Do not rely on P25 Individual
Call alone.
To initiate a P25 Individual Call:
1.
Select the desired P25 digital channel.
2.
Press the Soft Key assigned to Individual Call or access the main menu and choose
SELECT
.
3.
Scroll down to
IDCL
and press
<ENT>
.
4.
Toggle
IDCL
to
ON
and press <
ENT
>.
5.
Scroll to
DEST
and press
<ENT>
. Enter the destination UnitID (1 to 9999999).
6.
Press
<ESC>
twice to display the Individual Call screen.
7.
Press PTT.
When a P25 Individual Call is received, the radio generates a special tone indicating that an
individual call is being received.
If the receiving radio responds within 10 seconds, it remains in Individual Call mode. If not it
returns to normal operation.
8.
To exit to normal operation prior to the 10 second timeout, press <
ESC
>. The individual call
mode is exited, and the normal operating screen displayed.