Stabilized Satellite Television Antenna System for DVB compatible digital satellite television receivers Housed in a compact dome, this satellite antenna identifies compatible Digital Video Broadcast satellites using Wide Range Search technology for clear television reception anywhere in North America. Dual LNB design allows you to watch the weather at the helm while others watch the game down below. Compatible with DirecTV and Dish Network satellite receivers. Accurate tracking at sea is achieved via the STV's Dymamic Beam Tilting, ensuring a crisp picture even in rough conditions and weather. Weighs just 33lbs. Includes 45 STV Antenna and ACU (antenna control unit) with LED display for manual or automatic satellite selection. Multifunction Network Diagram Antenna Dish Diameter: 18" (45 cm) Operating Voltage: 10.7-16V DC Overall Dimensions (W x H): 19.2" x 20.8" (49 x 53 cm) Product Weight: 31.6 lbs. (14 Kg) Performance Specs Antenna Gain: 33dBi at 12.25 GHz Azimuth Range: 680 Degrees Elevation Range: 0 degrees to +90 degrees Frequency Ku Band (10.7-12.75 GHz) LNB: Dual Output Minimum EIRP: 50 dBW Position Repeatability: 0.1 Degrees Roll and Pitch Range: Roll +/- 25 Degrees. Pitch +/- 15 Degrees Roll and Pitch Tracking: 50 Degrees Per Second Shock: 27G, 11 msec Turn Rate: 50 Degrees Per Second Approvals: FCC and CE Approved Operating Temperature Range: 14 to 131 Degrees F (-10 to 55 Degrees C) Storage Temperature Range: -4 to 158 Degrees F (-20 to 70 Degrees C) Warranty: 2 years parts, 2 years labor