| 摘要 |
PURPOSE:To bring automatically an idle channel into a talking channel by providing the 1st and 2nd storage means storing respectively an oscillated frequency data at call and a frequency data and the 1st and 2nd group code storage means storing a group code to be transmitted and a group code to be selected. CONSTITUTION:The group code in a received input data is compared with the stored group code stored in a group code storage means 23 by a group code comparison means 24 and when they are not coincident, the group code is compared with the stored group code in a group code storage means 28 and the coincidence is detected. When the coincidence is detected, the group code comparison means 24 is switched, a frequency data in the input data in the reception signal is selected and fed to a storage menas 20. A selection means 21 in this case selects a storage frequency data of the storage means 20 and a frequency synthesizer 5 is set to a frequency corresponding to the frequency data in the input data of the reception signal. Thus, the amateur radio communication equipment is locked automatically to an idle channel. |
