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Control Head) is displayed six seconds after the PTT switch is pressed. Auto exit then
occurs.
5.13.10 Call History
If programmed, the Call History feature stores the IDs of the last five radios that have
made talkgroup calls, unit calls, or call alerts to the user's radio. To view the Call History
list:
1 Access Call Alert or Unit Call List from the menu. The first call displayed is the most
recent call received.
2 Scroll through the list to view up to 5 calls, in order from most recent to least recent.
5.13.11 Messaging
The messaging feature allows preprogrammed messages to be sent to a dispatcher on P25
channels. Up to 255 messages can be preprogrammed, and they are identified by an alias.
If a Message option switch is programmed, messages are sent as follows:
1 Momentarily press the Message option switch, menu option, or soft button (Lightning
Control Head only). The alias of the last message sent is displayed.
2 If required, rotate the Select switch to display the desired message. Then send the
message by momentarily pressing the PTT or Select switch. A single beep sounds when
the Select switch is pressed (if that option is enabled). One of the following events then
occurs:
•
If five beeps sound and "ACK RECVD" (Standard Control Head) or "Ack Received"
(Lightning Control Head) is displayed, the message was received and automatically
acknowledged by the system.
•
If after five tries the message is not acknowledged, a tone sounds and "NO ACK"
(Standard Control Head) or "No Acknowledge" (Lightning Control Head) is
displayed.
Note
A smart console with message receiving capabilities must be used to receive messages.
Draft 02 - Sep 1 2015
Viking Mobile Radio Operating Manual
Conventional Mode Features
5-27
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