radio beacon

Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++

ˈradio ˌbeacon noun [countable] TTATCa tower that sends out radio signals to help aircraft stay on the correct course 无线电导航塔

Examples from the Corpus

radio beacon• Then the pilots apparently selected a heading toward another radio beacon near the threshold of runway 19.• The airport has no radar nor instrument landing system and planes are guided in by radio beacon.• Following the crash the airliner's emergency radio beacon failed to function and rescue teams experienced difficulties locating the wreckage.

radio that sends out tower signals Corpus a to

radio beacon
ˈradio ˌbeacon

noun [countable]
a tower that sends out radio signals to help aircraft stay on the correct course