| 摘要 |
<p>PURPOSE:To improve the operability as well as to prevent a malfunction of a mobile radio communication device by performing the setting of frequency for all frequency transmitting/receiving devices and the resetting of a receiver for selection call through a resetting part. CONSTITUTION:When a selection call is given with a frequency F2 to a mobile station 40 from a fixed station, a receiver 12 for selection call receives the selection call and actuates an informing mechanism 13. An operator knows a call and operates a resetting part 21. Thus the receiver 12 is reset with a one- touch operation, and at the same time the mechanism 13 is reset. At the same time, the oscillation frequency of a local oscillating part 15 is switched and set so that the transmission and reception are possible with the frequency F2. Therefore the handling is simplified for a mobile radio communication device, and at the same time the part 21 is actuated with the output signal of the receiver 12 only in case no reception is performed for a prescribed period of time before a time point when the receiver 12 is actuated. Thus it is possible to prevent the switching during reception for all frequency transmitting/receiving devices and also to perform all operations in a fully automatic way.</p> |
