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If the transmitting radio does not have GPS or
the receiving radio could not decode the GPS
signal of the received signal, the receiving
radio display shows ID:<PTT ID> Unknown
Loc. The PTT ID is optional to be shown on
the display per requirements of usage.
Geofence (ASTRO 25 Trunking System)
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.
On top of that, additional features are Voice
Announcement of the new channel, and also direct
content display of a text message to indicate that you
are currently at Geofence area. Check with your
nearest qualified technician on the requirements for
these enhancements to work in Geofence.
Any new text messages received at Geofence shall
have its content displayed immediately on the radio
display.
Note:
If the radio is set up in DVRS, only mobile
radio is supported for this feature.
Entering the Geofence Area
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 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 matched 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
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