I Digital Repeater Operation - Icom ID-800H Instruction Manual

11
DIGITAL MODE OPERATION
Repeater A
440 MHz signal
Station A
Repeater C
440 MHz signal
Station C
For current existing repeater operation, stations that are com-
municating must 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
69
10 GHz signal
Repeater B
440 MHz signal
Station B
Internet Internet
network network
10 GHz signal
Repeater D
440 MHz
signal
Station D
the internet network— 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 communica-
tion like DX operation 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 linking repeaters via a
10 GHz backbone is called a Zone.