Icom ID-800H

69
11
DIGITAL MODE OPERATION
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
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.
Station A
Repeater A
Repeater D
440 MHz signal
Station C
Repeater C
440 MHz signal
10 GHz signal
440 MHz
signal
Station D
Station B
Repeater B
10 GHz signal
440 MHz signal
Internet
network
Internet
network
ID-800H_1.qxd 2007.06.14 3:09 PM Page 69