Traffic Collision Alert Device (TCAD II) antenna. It is a low-profile single blade antenna designed for mounting on top of the aircraft. The mounting configuration of this antenna features a four-element array that is compatible with the Avidyne TCAD II system.
FEDERAL & MILITARY: FAA TSO-C74c, DO-160C, MIL-D-5400H, MIL-STD-454, and MIL-STD-810C.