![]() The AN/SPY-1 radar antennas are the light grey octagonal panels on the front and starboard side of the superstructure of USS Lake Erie. | |
Country of origin | United States |
---|---|
Introduced | 1973[1] |
Type | 3D Air search |
Frequency | S band[1] |
Range | 370 km (200 nmi; 230 mi)[1][2] |
Azimuth | 0–360° |
Elevation | Horizon–zenith[3] |
Power | 6 MW |
The AN/SPY-1[a] is a United States Navy passive electronically scanned array (PESA) 3D radar system manufactured by Lockheed Martin, and is a key component of the Aegis Combat System. The system is computer controlled and uses four complementary antennas to provide 360-degree coverage. The system was first installed in 1973 on USS Norton Sound and entered active service in 1983 as the SPY-1A on USS Ticonderoga. The -1A was installed on ships up to CG-58, with the -1B upgrade first installed on USS Princeton in 1986. The upgraded -1B(V) was retrofitted to existing ships from CG-59 up to the last, USS Port Royal.
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