Transmitting station for a position locating system, particularly for the microwave landing system, and methods for monitoring and controlling such a transmitting station
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United States of America Patent
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-
Sep 28, 1993
Grant Date -
N/A
app pub date -
Jul 13, 1992
filing date -
Jul 20, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
In contrast with conventional transmitting stations for a position locating system in which the main equipment and the standby equipment operate alternately and are monitored by checking the transmitted signal received from external sensors, the present invention monitors at least the standby equipment during inactive periods during which no signal is being transmitted. In a preferred embodiment, external sensors (FS, MF) are provided for monitoring both the main transmitter (TXM) and the main timing and control section TCS1) during transmission periods, a dummy load (DL) and an internal sensor (IS) is used for monitoring the standby transmitter (TXR) during non-transmission periods, internal monitoring information (MI) is used for monitoring the reserve timing and control section (TCS2) and the electronic antenna (EA), and the two monitor sections (MS1, MS2) contained in the monitor unit are used to monitor each other.
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