| 摘要 |
PURPOSE:To inform of radio field intensity and the condition of a jamming signal by decoding a radio field intensity measuring signal, comparing the contents and a radio field intensity measuring code held at a receiver side and multi-step-displaying the receiving condition of a receiver using place or the radio field intensity. CONSTITUTION:When a frame synchronizing signal (SC) is detected, continuously, a radio field intensity measuring signal (SS) and an individual selecting calling signal (ID) are detected, and the contents of a programmable read only memory 6 in which a radio field intensity measuring code (CD) and the ID of a self-device are written, and a receiving signal are respectively compared and collated. When an ID code is recognized to be dissident, for a decoder 6, all data after the ID code are not fetched, only the comparison of the SS and DD is executed, the result is communicated to a radio field intensity and message processing part 8 and a radio field intensity and message processing part 8 rewrites only the radio field intensity displaying part of an LCD 9. Thus, it can be decided whether or not a receivable condition can be obtained. |
