| 摘要 |
PURPOSE:To obtain the diversity receiver operating in a state when a diversity gain is always normally obtained by monitoring a reception electric field level of plural receivers so as to output an alarm signal when a fault is detected in at least one of the receivers. CONSTITUTION:When an output signal of a high frequency circuit 2A or 2B or an intermediate frequency circuit 3A or 3B of at least one of plural receivers 9A, 9B is zero or unchanged for a prescribed time, an alarm signal is outputted and it is informed of that the diversity gain is not normally obtained by a monitor circuit 7. |
