Transmitting station for a navigation system comprising a main transmitter and a stand-by transmitter, particularly transmitting station for the MLS microwave landing system

摘要

A transmitting station for a navigation system with dual transmitters (20A, B) is disclosed in which the dummy load, which commonly trerminates the active-standby transmitter instead of the antenna system, and the associated high-performance changeover switch are omitted. Instead, the two transmitters are operated in constant alternation. This permits better monitoring with less costly and complicated equipment.