VOR Navigation Antenna Set "towel bar" antenna is designed for mounting on the aircraft vertical stabilizer or helicopter tail boom. Lightweight, featuring an aerodynamic shape to reduce drag over other "towel bar" type antennas. Set includes a pair of "towel bar" sensor elements each with integral coax interconnect cable/BNC connector and a "T" connector for joining the two coax cables into a single cable routing to the avionics installation. Use the CI 502 coupler for dual VOR operation with NAV 1 and NAV 2 receivers.