- nondirectional beacon with marker
- Engineering: NDBM
Универсальный русско-английский словарь. Академик.ру. 2011.
Универсальный русско-английский словарь. Академик.ру. 2011.
compass locator — A low or medium frequency nondirectional beacon co located with middle or outer marker beacons to help establish the pilot on the localizer for an ILS (instrument landing system) approach. Such locators have a power output of less than 25 watts… … Aviation dictionary