NAVIGATION AID TRANSMITTER-MONITOR SYSTEM

摘要

The monitor includes a plurality of separate monitor receiver antennas arranged at different displacement positions in space with respect to a course plane defined by the radio navigation aid transmitter being monitored. Separate monitor receiving channels are provided for each of said monitor antennas and respectively connected to said monitor receiver antennas for separately determining the presence of deviations of the received signals from the values within predetermined limits.