Very High Frequency Omnidirectional Radio Range (VOR) Loop Antenna

The VOR loop antenna serves as part of the FRN44A VOR station, generating bearing information for aircraft guidance. The antenna is an Alford Loop, mounted above a shelter on a counterpoise and inside a radome. The VOR antenna works at a frequency range of 108 to 118 MHz.

The Alford Loop antenna is an omnidirectional, horizontally-polarized transmission loop that receives one of the four RF signals from the bridge of a full VOR Navigational Set (AN/FRN44A).The full VOR Navigational Set consists of an RF transmission line coupler (bridge assembly) mounted inside the shelter, a group of four Alford Loop antennas, and a circular array of four tunable rods spaced at 90° intervals called the vertical polarizer. The Alford Loop is designed to match performance and environmental specifications of the VOR Navigational Set (NSN: 5825-01-628-2338).

dB Systems sells only the loop antenna from the VOR Navigational Set. dB Systems Inc. offers antenna repair and refurbishment at our facility. Contact us for a quotation.