| 摘要 |
PURPOSE:To speedily recover a waiting state to enable speaking even when radio waves are instantaneously interrupted. CONSTITUTION:This equipment is provided with a reception level detecting means 6, reception channel setting means 4 and 5 for setting a reception channel to the channel of a peripheral zone, which shows a maximum reception level when the radio waves are instantaneously interrupted, after zone move processing according to the detected result when the radio waves are instantaneously interrupted, instantaneous radio wave interruption judging means 9 for judging the instantaneous interruption of radio waves based on the frequency deviation of received radio waves detected by an automatic frequency adjusting means 7, operation mode switch instructing means 4 and 10 for instructing switching from a waiting channel selecting state to a roost channel scan state to a time division multiple access processing means 3 when the instantaneous interruption is judged, and scan start instructing means 4 for instructing the start of roost channel scan from the reception channel set by the reception channel setting means 4 and 5 when the operation mode is switched. |
