SAN ANTONIO, Texas, 13 May 2010. Southwest Research Institute (SwRI) in San Antonio, Texas, is introducing the AVM-375 low-profile direction-finding military antenna to identify and locate sources of communications signals from a vehicle-mounted direction finding system on the move.
This system consists of four antennas distributed around the body of a vehicle to reduce the visible signature of the military antenna array. The antenna provides real-time, 360-degree direction finding across two frequency bands, covering 120 MHz to 3 GHz.
“Most DF antennas are mounted on an extended mast to avoid signal perturbations associated with rooftop clutter; however, this creates a more obvious target for enemy threats and limits vehicle mobility,” says Patrick Siemsen, a principal engineer in SwRI’s signal exploitation and geolocation division.
“The AVM-375 improves mission stealth and vehicle mobility while providing geolocation of enemy forces from a single moving platform," Siemsen says. "Multiple platforms can be networked to provide enhanced DF and geolocation.”
The direction-finding system is calibrated using a test target and GPS tracking software, and the calibration data can be ported to systems installed on similar vehicles without requiring recalibration. For more information contact SwRI online at www.swri.org.
