ATPL Theory - Marker Beacons Marker Beacons are stations on the ground. When you fly overhead they will let you know by means of a visual or a sound (can be both).
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
![Aircraft Technic on Twitter: "Here is a Marker Beacon antenna. Marker beacons are part of the ILS(Instrument Landing System) landing system. https://t.co/pnY9qq1GTI" / Twitter Aircraft Technic on Twitter: "Here is a Marker Beacon antenna. Marker beacons are part of the ILS(Instrument Landing System) landing system. https://t.co/pnY9qq1GTI" / Twitter](https://pbs.twimg.com/media/CZu4SyUWAAARCi6.jpg)
Aircraft Technic on Twitter: "Here is a Marker Beacon antenna. Marker beacons are part of the ILS(Instrument Landing System) landing system. https://t.co/pnY9qq1GTI" / Twitter
![Ultra‐small Marker Beacon Antenna with a Wide Frequency Tuneable Capacitive Plate - Park - 2016 - ETRI Journal - Wiley Online Library Ultra‐small Marker Beacon Antenna with a Wide Frequency Tuneable Capacitive Plate - Park - 2016 - ETRI Journal - Wiley Online Library](https://onlinelibrary.wiley.com/cms/asset/1b3eee5f-5c09-4e05-ab55-62f25f041627/etr20879-fig-0006-m.jpg)