Gps Location Service; Figure 9: Radio Messaging System Flow Model - Motorola MTP850 S Product Information Manual

68 | Services and Features

Figure 9: Radio Messaging System Flow Model

C o n tro l Room
A Short Data Router (SDR) provides TETRA short data services between host applications connected to Dimetra
Mobile Stations or between a host application connected to a Dimetra Mobile Station and a host application
connected through the Dimetra Master Site. Furthermore the SDR provides TETRA short data services directly
between two Dimetra Mobile Stations or directly between a Dimetra Mobile Station and a host application connected
through the Dimetra Master Site.
To receive and send RMS messages, ensure that the RMS feature is enabled in the codeplug. The radio accepts
received RMS messages only from the calling party address defined in the codeplug. Any outgoing RMS status is sent
to the RMS status target address defined in the codeplug.
The RMS status is a bidirectional messaging (from the control room to a radio and conversely). Sending an RMS
status is possible, where the RMS mode is enabled in the radio. In such case, the radio user can send one of ten
predefined RMS statuses to an address predefined in the codeplug. You can select the particular RMS status using
assigned one-touch buttons. A received RMS status is displayed in blue color on the idle display. The latest received
or sent RMS status is kept on the idle display until the next power cycle.
The RMS free text is a unidirectional message (from the control room to a radio). Received RMS free texts are
displayed in blue color on the idle display. The latest RMS free text is kept on the display (idle display) until the next
power cycle.
Upon receiving the request, the radio sends the latest sent RMS status to the control room without any user interaction
or notification.
Incoming and outgoing RMS statuses and RMS free text messages (with the exception for RMS status sent) are stored
in the RMS Box. The RMS Box capacity is maximum ten entries for incoming and outgoing RMS messages. If the
RMS Box is full, storing any new incoming or outgoing RMS message overwrites the oldest message (received or
sent) in the RMS Box.
This is a selling feature.

GPS Location Service

The GPS Location Service feature uses information from Global Positioning System (GPS) satellites orbiting the
Earth to determine the approximate geographical location of your radio.
The GPS Location Service availability, accuracy, and the position calculation time vary depending on the
environment in which you use the radio. The GPS Location Service can assist your dispatcher or colleagues in many
ways such as more efficient deployment of resources or locating your radio when you trigger your emergency service.
The radio can display the location information directly on the screen or send it over the air to your Dispatcher to
display it in the control center. Check your radio configuration details with your service provider.
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S w M I
SDR
RMS PI (SDS-TL)
RMS Status
RMS Free Text
RMS PI (SDS-TL) RMS PI (SDS-TL)
Radio