Figure 2: Trunked Mode Operation
2.3
Direct Mode Operation
Direct Mode Operation (DMO) is a mode of simplex operation where radios communicate directly
without the need of a network.
NOTE: For those who use DMO mode, you are recommended to apply DMO SCK for data
confidentiality.
Figure 3: Direct Mode Operation
2.4
DMO Gateway and Repeater Communication
The radio allows communicating in Direct Mode Operation (DMO) with a Trunked Mode Operation
(TMO) group. This communication occurs through Interoperability (IOP) certified gateways.
A DMO repeater retransmits information received from one DMO radio to other DMO radios.
Retransmission occurs over the DMO air interface.
For each DMO talkgroup, the radio allows operating in one of the following modes:
MN003465A01-AF
Chapter 2 : Services and Features
12
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