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6.17
Mission Critical Geofence (ASTRO 25 Trunking)
This feature allows the radio to use the GPS receiver to determine its location at frequent intervals and
evaluate if the radio is within the Geofence area in real time. Geofence is a virtual perimeter based on
the GPS to define a geographical area on earth.
When the radio enters the predefined Geofence area, your radio receives the Dynamic Regroup
command from the system and immediately connects to a Dynamic Regroup talkgroup. The radio
display shows the new selected Dynamic Regrouped talkgroup with green intelligent light for your
attention. Voice Announcement is also available to support this feature.
Any new text messages received at Geofence displays the content immediately on the radio display.
NOTICE: If the radio is set up in DVRS, only mobile radio is supported for this feature.
6.17.1
Entering the Geofence Area
Prerequisites: The Voice Announcement and TMS display in this feature are optional. They must be
configured to enable you to hear and see these indicators.
When and where to use: When the radio enters a Geofence area, the radio immediately sends a
message ACK back to the system.
The radio searches the current zone for the channel with same talkgroup assigned as the Dynamic
Talkgroup and also with same system ID of current trunk system. Once matched, the radio display
shows the first matched and connected channel alias.
If there is no channel with matching Talkgroup ID and trunk system ID, the radio display shows the
channel alias of <DYNAMIC talkgroup>.
Once the radio is connected, you hear a dynamic regroup tone, the radio display shows <DYNAMIC
channel> with temporary green color intelligent backlight and you hear a Voice Announcement.
NOTICE:
When the radio loses the GPS signal, the GPS icon blinks and the radio sounds two high-
pitched tones repetitively to indicate that the GPS has failed to operate. The radio display
shows the red intelligent light.
If the first matched channel is not configured with Voice Announcement, no Voice
Announcement is played.
The system sends a message to your radio. The radio display shows a direct text message content
without any user operation. This message indicates you are currently present in a Geofence area. This
TMS remains open on the display until user presses exit/home to exit this screen.
NOTICE: If there is another incoming text message before you exit the previous message, the
message screen is refreshed to show the latest message.
The following procedure guides you to exit the text message received.
Procedure:
Press the Menu Select button below Exit or
The other operations are the same as normal dynamic regroup command.
When the radio exits the Geofence area, your radio reverts to original channel or newly assigned
talkgroup. The radio display shows the new channel together with Voice Announcement to indicate the
changes. Voice Announcement of the new channel only works if that channel is configured with Voice
Announcement.
Chapter 6: Advanced Features
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