Transmitting station for a navigation system comprising a principal and a standby transmitter, especially a transmitting station for the micro wave landing system MLS

摘要

In a transmitting station for a navigation system with duplicated transmitters (20A,B), the dummy load which is usually present and which terminates the transmitter in each case on active standby instead of the antenna system, is omitted together with the associated high-quality changeover switch. Instead, the two transmitters are operated in continuous alternation. This provides the possibility for better monitoring with less expenditure. …IMAGE…