摘要 |
PURPOSE: To perform the optimum channel selecting operation in combination with a GPS reception equipment even at the time when a radio wave of ground broadcasting cannot be received by providing a specific satellite radio wave reception discrimination means and a specific control part for channel selection and tuning. CONSTITUTION: A key input part 6, a storage part 7A consisting of a map data storage part 7B and a storage part 7C for channel selection, a display part 9, and an antenna 11 for radio are provided, and a radio reception part 10 in which a means to discriminate the reception state of the broadcasting radio wave is incorporated is connected to a data processing part 8A. A control part 8B for channel selection and tuning included in the data processing part 8A issues a required command signal for channel selection and tuning to the radio reception part 10 when the radio wave from GPS is received in a satellite radio wave reception discrimination means 12. The control part 8B continues to receive the broadcasting received at present without issuing the required command signal for channel selection and tuning to the radio reception part 10 when the radio wave from GPS is not received in the satellite radio wave reception discrimination means 12. |