0.5 – 18GHz Spinning DF antenna. This broad band Direction Finding system is designed for military and security signal surveillance applications. The system has a low band log-periodic antenna and a high band shaped fan beam reflector antenna. An azimuth positioner rotates at 200 RPM to provide fast signal updates. Features include rotary joint, slip ring, LNA, limiters, bypass switches and radome. The positioner and antenna amplifier switching can be remotely controlled through RS-232, RS-485, or Ethernet connections on the controller.