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
![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)
Ultra‐small Marker Beacon Antenna with a Wide Frequency Tuneable Capacitive Plate - Park - 2016 - ETRI Journal - Wiley Online Library
![Newbie question - unknown beeping/alarm in Airbus cockpit along with flashing letters on display (highlighted in pic) : r/flightsim Newbie question - unknown beeping/alarm in Airbus cockpit along with flashing letters on display (highlighted in pic) : r/flightsim](https://preview.redd.it/5ldilriq4xa61.png?auto=webp&s=ce6bc92f58092e9a54c2b486ca39c5f4d9497a45)
Newbie question - unknown beeping/alarm in Airbus cockpit along with flashing letters on display (highlighted in pic) : r/flightsim
![IFR: The Instrument Landing System (ILS) – Learn to Fly Blog - ASA (Aviation Supplies & Academics, Inc.) IFR: The Instrument Landing System (ILS) – Learn to Fly Blog - ASA (Aviation Supplies & Academics, Inc.)](http://learntoflyblog.com/wp-content/uploads/2017/10/13-1.jpg)