Radio to radio only
The radio initiates communication only on a talkgroup directly and not through a gateway or
repeater.
Specific gateway
The radio can initiate communication 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.
Auto gateway
The radio can initiate communication on the selected talkgroup directly with another radio. The
radio can also initiate communication through any available gateway that is detected as present.
Repeater
The talkgroup links to a DMO repeater.
Specific gateway and repeater
The radio uses only the gateway with the specified gateway address for the talkgroup and/or a
DMO repeater.
Automatic gateway and repeater
The radio uses the first available gateway for a talkgroup and/or a DMO repeater.
All outgoing communication is placed through the gateway if the following conditions occur:
• Either a specific gateway or auto gateway mode is chosen
• A suitable gateway is found
The radio attempts to set up communication directly if the following conditions occur:
• Communication setup through the gateway fails
• A suitable gateway is not found
When operating on a gateway and/or repeater, the radio indicates the communication mode.
2.4.1
Communication through Repeaters
Radios that are out of range and cannot communicate directly with each other in Direct Mode
Operation (DMO) can do it through the repeater. The repeater is a radio that repeats all communication
on a chosen channel, and as a result increases radios DMO range.
Figure 4: Communication through Repeaters
DMO
DMO
MN003465A01-AF
Chapter 2 : Services and Features
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