COMMANDER's omni fiberglass antenna 896 – 960 6.1 dBi N Female. This collinear antenna provides consistent gain and impedance across the operating frequency band and is designed to meet various omnidirectional requirements for repeated control stations. This antenna utilizes copper radiating elements and is encased in small diameter fiberglass to reduce wind resistance. Commander antennas incorporate design enhancements not normally available in other fiberglass collinear antennas of comparable size.