The SEA & AIR NAVAL S U RV E I L L A N C E RADAR SYSTEM from Easat Radar Systems Limited is a RADAR System with Azimuth Range 0.45 Degree, Frequency 8.80 to 9.10 GHz/9.20 to 9.50 GHz, Gain 37 to 38 dBi, Range 2 to 37 NM. Tags: Primary Surveillance Radar (PSR). More details for SEA & AIR NAVAL S U RV E I L L A N C E RADAR SYSTEM can be seen below.