相移全向无线电指向标

phase shift radio range finding omnidirectional random phase shift characteristic phase shift phase shift keying differential phase shift parallel resistance phase shift type omnidirectional intensity omnidirectional signal omnidirectional aerial omnidirectional measurement omnidirectional radio range very-high-frequency omnidirectional radio range omnidirectional range omnidirectional range range omnidirectional rotating radio beacon omnidirectional radio beacon (ORB) omnidirectional range station very high frequency omnidirectional range radio range narrow-band-long-wave omnidirectional range