| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To acquire a call sign of a communicable repeater automatically without burdening a user, in a wireless apparatus employing audio communication of a digital system. <P>SOLUTION: A non-volatile memory of a wireless apparatus stores a table T including data of position information D2, a call sign D3 and uplink and downlink frequencies D4-D6 for each of repeaters installed at a plurality of points. A controller of the wireless apparatus, prior to communication, compares information indicating a current position of the wireless apparatus that is acquired from a position information acquisition device with the position information D2 of the repeaters included in the table T to select from the table T a repeater at a near distance, and notifies a transmission part of the call sign D3 of the repeater as a call sign of a sender repeater. The controller further notifies the transmission part of the uplink frequency (calculated from D4, D5 and D6), and notifies a reception part of the downlink frequency D4. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
