Marker Beacon System * Function The marker beacon system is a radio navigation aid which determines the distance between the aircraft and the runway threshold. The system provides visual and aural indications
ILS: How The Instrument Landing System Works | Boldmethod
Marker Beacon (Wikipedia Reference) | PDF | Geography | Wireless
ILS The Instrument Landing System (ILS) provides an approach path for exact alignment and descent of an aircraft on final approach to a runway The basic components of an ILS are the
Garmin function question (marker beacons) - General Discussion - Microsoft Flight Simulator Forums
Testing Marker Beacon with the R&S®CMA180 Radio Test Set - YouTube
navigation - What are outer marker horizontal dimensions at 3 degrees ILS path? - Aviation Stack Exchange