Icom ID-1 Instruction Manual - Page 62

8 REPEATER OPERATION- VOICE About D-STAR system In the D-STAR system, repeater linking via a 10 GHz band backbone and internet network (gateway connection) capabilities are available. This system allows you to much wider coverage range during Digital voice mode operation. • D-STAR system outline Repeater A 10 GHz signal Repeater B 1.2 GHz signal 1.2 GHz signal Station A Internet network Station B Repeater C 10 GHz signal 1.2 GHz signal Repeater D 1.2 GHz signal Station C 55 Station D For current existing repeater operation, stations that are communicating 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 communication like DX operation may be possible with 1.2 GHz 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. About time-out timer function The ID-1 has a time-out timer function for digital repeater operation. The timer limits a continuous transmission for approx. 10 min. Warning beeps will sound before 30 sec. (approx.) and just before the timer functioning.