| 摘要 |
PURPOSE:To allow a reception disturbance prevention countermeasures to cope simply with a propagation change by sending a test signal from an optional mobile base station and setting the prevention of a reception disturbance when the test signal is received by other mobile base station. CONSTITUTION:A central processing unit 24 starts, e. g. a mobile base station trunk 13 to activate a mobile base station 17 and an antenna 20 sends a test signal. The test signal is received by, e.g. an antenna 21 and reaches a mobile base station 18. In this case, the central processing unit 24 recognizes that the mobile base station requiring the reception disturbance countermeasure to the mobile base station 17 is the mobile base station 18 and writes the reception disturbance countermeasure data to a mixing amplifier control unit 10. While the reception disturbance countermeasure is set in this way, the base station designation switch 4 of a mobile command board 1 is operated to make a call from the mobile base station 17, then the mixing amplifier control unit 10 eliminates the reception output of the mobile base station 18 from the mixing. |
