| 摘要 |
PROBLEM TO BE SOLVED: To enhance the operability when starting split operation, in a transceiver capable of split operation where a predetermined frequency difference is given between the reception frequency and transmission frequency.SOLUTION: When a split switch is operated, the reception frequency and reception radio wave type on the main band side are copied to the reception frequency and transmission frequency on the sub-band side, and the split function and 2-wave simultaneous reception function are turned ON. Subsequently, a frequency shifted by a predetermined frequency from the reception frequency on the main band side is set in the transmission circuit and a sub-band side reception circuit, before starting actual split operation. When achieving the 2-wave simultaneous reception function capable of receiving two waves simultaneously, by providing two reception circuits, the 2-wave simultaneous reception function can be turned ON quickly and automatically, by simply turning the split operation ON, in a situation where the split operation is required, and communication opportunities can be get easily while enhancing the operability.SELECTED DRAWING: Figure 3 |
