Operating Manual Part 15

5-16 5300 ES Series Mobile Radio Operating Manual October 2008
Conventional Features
User Group ID - If the group ID of the call being received is included in a
preprogrammed User Group ID list, the alias programmed in that list for that group is
displayed.
5.13.4.1 Changing Talk Group Assigned To a Channel
If the TG SEL option switch is programmed, the talk group assigned to a channel can be
changed by the user. The operation can also be selected from the menu as Digital
Talkgroup Select. The new talk group continues to be assigned to the channel until it is
manually changed again (cycling power or selecting another channel does not reselect a
default talk group). Change the talk group assigned to a channel as follows:
1 Select the channel to be changed and then press the TG SEL option switch.
2 Rotate the Select switch to display the talk group to be assigned to that channel. Talk
groups are indicated by a unique identification in the alphanumeric display.
3 To select that talk group and return to normal operation, press the TG SEL switch again
or press the Select switch. A single beep sounds when the Select switch is pressed (if
that option is enabled). If talk group selection has been disabled on the channel by
programming, the talk group does not change, “NO LIST” is displayed, and a tone
sounds.
5.13.5 P25 Unit Calls
Unit calls (also called Individual Calls) can be placed to a specific radio on Project 25
channels using the Unit Call option switch (if programmed) or by menu selection. Only
the individual ID of the target radio is sent (a talk group ID is not sent). The radios that can
be called are preprogrammed in the Unit Call list.
To receive a unit call, the RF channel of the call must be selected or scanned and the
correct NAC and unit ID must be detected. The ID of the calling radio is then transmitted
back. To respond to the call, the radio must be programmed with the Unit Call option
switch, and have a Unit Call programmed with the ID of the calling radio.
Place and receive a Unit Call as follows:
1 To transmit a unit call, press the Unit Call option switch (or select the menu option).
The alias (tag) of the last Unit Call is displayed.
2 If required, rotate the Select switch to display the desired alias/ID. The alias and ID of
the unit calls that have been programmed are alternately displayed.
3 Press and then release the PTT switch. Ringing is then heard and “WAIT” displayed to
indicate that the radio is being rung. To disable this ringing but not the call, briefly
press the PTT switch again. Ringing occurs for 20 seconds or until the call is answered,
whichever occurs first.