Figure 5: Communication Through Repeaters; Figure 6: Communication Through Gateways - Motorola MTP8500Ex User Manual

MN002033A01–AC (en-US)
Chapter 3: Modes
3.3.9
Communication through Repeaters
Radios that are out of range and cannot communicate directly one with another 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 5: Communication through Repeaters

DMO DMO
When the radio connects to a repeater, it plays a tone, displays the Repeater available message,
and shows an appropriate icon. When the radio loses connection with the repeater, it plays a tone,
displays the Repeater not available message, and the repeater icon is blinking.
3.3.10
Communication through Gateways
Gateway provides connectivity between radios operating in Direct Mode Operation (DMO) and the
TETRA network, so that the DMO radios can communicate with the Trunked Mode Operation (TMO)
radios.

Figure 6: Communication through Gateways

TMO
TMO
DMO
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