Icom IC-2820H Instruction Manual - Page 62

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) capabilities are available. This system provides you with much wider coverage range during digital voice mode operation. • D-STAR system outline Repeater A 440 MHz 10 GHz Repeater B 440 MHz Station A Internet network Station B For current repeater operation, stations that are communicating 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 communication 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. Repeater C 440 MHz 10 GHz Repeater D 440 MHz Station C 41 Station D