| 摘要 |
A transmitting station for a position locating system and methods for monitoring and controlling such a station are disclosed. In known stations, the main equipment and the standby equipment operate alternately, and the monitoring consists in checking the transmitted signal received from external sensors. It is object of the present invention to monitor at least the standby equipment during inactivity periods, i.e. while no signal are transmitted. This is achieved through: use of external sensors (FS, MF) for monitoring both the main transmitter (TXM) and the main timing and control section (TCS1) during transmission periods, use of a dummy load (DL) and an internal sensor (IS) for monitoring the standby transmitter (TXR) during non-transmission periods, use of internal monitoring information (MI) for monitoring the reserve timing and control section (TCS2) and the electronic antenna (EA), and mutual monitoring of the two monitor sections (MS1, MS2) contained in the monitor unit (MU). <IMAGE> |
