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Advanced Features
English
37
4
Hold the microphone vertically 1 to 2 inches (2.5 to 5.0 cm) 
from your mouth.
5
Press and hold the PTT button to start the Selective Call. 
The display shows the ID of the target radio. 
6
Release the PTT button to listen.
7
Press 
H
 to return to the Home screen.
If you do not press 
H button to hang up, your radio will remain 
in Selective Call state with the other unit. You will miss all 
subfleet traffic and incoming phone calls.
Using the Talkgroup Call Feature (Conventional 
Operation Only)
This feature allows you to define a group of conventional 
system users so that they can share the use of a conventional 
channel.
Note:
Encryption keys are associated to talkgroups. When 
talkgroups are enabled, encryption keys are changed 
by changing the active talkgroup. See Secure 
Operations
 on page 73 for 
more information.
Selecting a Talkgroup
Procedure:
1
>
 or 
<
 to 
TGRP.
2
Press the Menu Select button directly below 
TGRP. The 
display shows the last talkgroup that was selected and 
stored.
3
>
 or 
<
 to 
PSET for the preset preprogrammed talkgroup. 
OR
>
 or 
<
 to the required talkgroup.
OR
Use the keypad to enter the number of the corresponding
talkgroup in the list.
4
Press the Menu Select button directly below 
SEL to save 
the currently selected talkgroup and return to the Home 
screen.
5
If the encryption key associated to the new talkgroup is 
erased, a momentary key fail tone sounds and the display 
shows 
KEY FAIL.
OR
If the encryption key that is associated to the new talkgroup 
is not allowed, a momentary key fail tone sounds and the 
display shows 
ILLEGAL KEY.
6
Press 
H
 or the PTT button to exit.
O5Head_6875947M01_C.book  Page 37  Wednesday, October 20, 2010  12:13 PM