ICOM 283300 Manuale Utente
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11
DIGITAL MODE OPERATION
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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 allows you to much wider
coverage range during Digital voice mode operation.
backbone and internet network (gateway connection) capa-
bilities are available. This system allows you to much wider
coverage range during Digital voice mode operation.
• D-STAR system outline
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.
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.
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 MHz/440MHz
digital voice!
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 MHz/440MHz
digital voice!
In the D-STAR system, independent repeater’s operating
area is called as Area and a group that linking repeaters via a
10 GHz backbone is called as Zone.
area is called as Area and a group that linking repeaters via a
10 GHz backbone is called as Zone.
NOTE:
The digital repeater for IC-V82/U82 (144 MHz/440
MHz of amateur radio bands operation) is not available at
present of October 2004. It will be designed in the future.
present of October 2004. It will be designed in the future.
Station A
Repeater A
Repeater D
440 MHz signal
Station C
Repeater C
440 MHz signal
10 GHz signal
440 MHz
signal
signal
Station D
Station B
Repeater B
10 GHz signal
440 MHz signal
Internet
network
Internet
network