omnirange radio beacon

Ground error curves formulas for VHF omnirange radio beacon antenna system
Direction finder or omnirange beacon with wide-aperture antenna system
DOUBLE-SIDEBAND DOPPLER VHF OMNIRANGE BEACON
Omnirange beacon system
Omnirange beacon system
Omnirange beacon antennas
Omnirange beacon antenna having rotating parasitic conductive elements
Omnirange beacon antenna
Omnirange beacon antenna
Multilobe omnirange beacon systems