ICOM ic-e2820 User Manual

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5

DV MODE OPERATION (Optional UT-123 is required)

■ About D-STAR system

In the D-STAR system, repeater linking via a 10 GHz band
backbone and internet network (gateway connection) capa-
bilities are available. This system provides you with much
wider coverage range during digital voice mode operation.

For current repeater operation, stations that are communicat-
ing must both be in the same repeater’s operating area.
However, in the D-STAR system as in the illustration at left,
the repeaters can be linked via the system repeaters (with a
10 GHz signal). Thus stations A and B can communicate even
though they are in different repeater operating areas.

Also, the D-STAR system repeaters are connectable through
the INTERNET— gateway connection capability. 

For example, when station B uses the gateway connection
station B can communicate with the station C! 
By using the gateway connection, long distance DX commu-
nication may be possible with 144 or 440 MHz digital voice!

In the D-STAR system, an independent repeater’s operating
area is called an Area and a group that of linked repeaters via
a 10 GHz backbone is called a Zone.

Station A

Station C

 Station D

Repeater A

Repeater D

440 MHz

440 MHz

Repeater C

10 GHz

Station B

Repeater B

10 GHz

440 MHz

440 MHz