| 摘要 |
PURPOSE:To bring automatically an idle channel to a talking channel by providing the 1st and 2nd storage means storing a frequency data and a group code storage means storing a group code and generating an output data corresponding to a storage frequency data of the 2nd storage means and a storage group code of the group code storage means. CONSTITUTION:The group code in a received input data is compared with a storage group code stored in a group code storage means 23 by a group code comparator means 24 and coincidence is detected. A frequency synthesizer 5 is set to a frequency corresponding to a frequency data in the input data of the reception signal and an amateur radio communication equipment is locked automatically to an idle channel. In this case, when the channel is not locked to the idle channel automatically, a storage frequency data of the storage means 20 and the storage frequency data of the storage means 22 are replaced with each other by a replacing means 27 by turning on a replacing command means 26. Thus, if an opposite party does not respond from a transmission side, whether or not the opposite side restores to a frequency at call is detected. |
