AN/SPS-48

AN/SPS-48

An SPS-48E radar antenna (the large square panel) aboard USS Theodore Roosevelt (CVN-71).
Country of origin	United States
Introduced	21 February 1966
Type	3D Air-search
Frequency	E and F band (2 to 4 GHz)
Range	250 nmi (460 km)
Altitude	100,000 ft (30,000 m)
Diameter	17 ft (5.2 m) by 17 ft 6 in (5.33 m)
Azimuth	0-360°
Elevation	0-65°
Precision	690 ft (210 m) elevation 1/6° azimuth
Power	35 kW (avg)

The AN/SPS-48 is a US naval electronically scanned array, air search three-dimensional radar system manufactured by ITT Exelis and deployed in the 1960s as the primary air search sensor for anti-aircraft warships. The deployment of the AN/SPY-1 and the end of the Cold War led to the decommissioning of many such ships, and many of these vessel's AN/SPS-48 sets were reused on aircraft carriers and amphibious ships where it is used to direct targets for air defense systems such as the Sea Sparrow and RIM-116 SAM missiles. Existing sets are being modernized under the ROAR program to AN/SPS-48G standard for better reliability and usability.^[1]