![navigation - What are outer marker horizontal dimensions at 3 degrees ILS path? - Aviation Stack Exchange navigation - What are outer marker horizontal dimensions at 3 degrees ILS path? - Aviation Stack Exchange](https://i.stack.imgur.com/SUePg.gif)
navigation - What are outer marker horizontal dimensions at 3 degrees ILS path? - Aviation Stack Exchange
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).
![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://i.redd.it/5ldilriq4xa61.png)