Motorola MTP830 S - Repeater Mode; DMO Gateway and Repeater Communication

The man down feature is based on a sensor with low power current consumption. When Man Down is enabled the
sensor performs a self test during powering on the radio. If the test fails, the radio notifies with a specific audio tone
and status icon. The radio also notifies with the specific audio tone and status icon, when the man down device
detects a failure during the activation of the feature.
If the feature is deactivated using radio MMI after the sensor failure is detected, the man down icon disappears and
the tone is no longer played.
Depending on the CPS settings, additional audio and/or visual indications are available to help locating the radio. In
such case, if the man down alarm is activated (emergency alarm started), the radio starts additional audio indication
playing high and low frequency sounds continuously, with highest possible volume. The radio display and/or keypad
may also start blinking.
If the emergency hot microphone is on, the additional audio indication is not played.
Repeater Mode
The Repeater Mode provides repeater connectivity between radios operating in the DMO Mode.
Note: Only the radios on the same talkgroup can communicate with each other through the repeater.
A DMO repeater is used to extend the DMO range by retransmitting received information from one radio to another.
It retransmits group calls, private calls and data on a given frequency.
The repeater sends presence signal periodically on a free channel to allow other radios to synchronize on a given
frequency.
The communication between radios and the DMO repeater is logically divided in two links. The term “master link” is
used for all communication taking place between the Master radio and the DMO repeater.
The term “slave link” is used for all communication taking place between slave radio and the DMO repeater. The
master is the radio initiating and transmitting the voice or data and the slave is the radio receiving the voice or data.
You can enable Call Monitoring of ongoing call to hear what is being transmitted. You can enable Interactive
Repeater in order to hear and take part in the transmitted call.
For more information refer to DMO Gateway and Repeater Communication on page 61.
This is a selling feature.
Related Links
DMO Gateway and Repeater Communication on page 61
DMO Gateway and Repeater Communication
The radio provides the capability of communicating in DMO mode with a TMO group via the IOP certified gateways.
A DMO repeater re-transmits information received from one DMO radio to other DMO radios over the DMO air
interface.
For each DMO talkgroup, the radio allows operating in one of the following modes:
Radio to radio only
The radio initiates calls only on a talkgroup directly and not through a gateway or repeater.
Specific gateway
The radio can initiate calls on a talkgroup directly or through a specific gateway address that is specified for a
talkgroup. The gateway address can be edited through the radio MMI.
Services and Features | 61
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