 AN/SPS-49 onUSS Abraham Lincoln | |
| Country of origin | United States |
|---|---|
| Introduced | 1975 |
| No. built | 200+ |
| Type | 2D Air-search |
| Frequency | L band 851–942 MHz |
| Range | 3 nmi (5.6 km) to 256 nmi (474 km) (AN/SPS-49A(V)1) |
| Altitude | up to 150,000 ft (45,720 m) |
| Diameter | 24 ft (7.3 m) × 14 ft 3 in (7.3 m × 4.3 m) |
| Azimuth | 0 to 360° |
| Precision | 1/16 nmi range 0.5 deg azimuth (SPS-49A(V)1) |
| Power | 360 kW peak, 13 kW average (AN/SPS-49A(V)1) |
TheAN/SPS-49 is aUnited States Navy two-dimensional, long range air searchradar built byRaytheon that can provide contact bearing and range. It is a primary air-search radar for numerous ships in the U.S. fleet and inSpain,Poland,Taiwan aboardOliver Hazard Perry-class frigates,Canada on itsHalifax-class frigate (prior to FELEX mid-life upgrade) andNew Zealand on itsAnzac-class frigates. It formerly served in a complementary role aboardAegis cruisers with theAN/SPY-1 but the systems are currently being removed during routine upgrade with no replacement.
In accordance with theJoint Electronics Type Designation System (JETDS), the "AN/SPS-49" designation represents the 49th design of an Army-Navyelectronic device forsurface ship search radar system. The JETDS system also now is used to name allDepartment of Defense electronic systems.
First tested in 1965 aboardUSS Gyatt and introduced in 1975, the AN/SPS-49 operates in the 851–942 MHz, or L-, band and has a range of 256 nautical miles (474 km). The orange-peel parabolic shape of the antenna creates a narrow 3.3°-beam to reduce the probability of detection or jamming. It can rotate at 6 rpm in long range mode or 12 rpm in short-range mode.[1] Default is at 12 rpm for the AN/SPS-49A(V)1, to provide more frequent scans against incoming missiles. The SPS-49A(V)1 can detect out to its full range at either 6 or 12 rpm. The antenna is stabilised to compensate for ships pitch and roll, to a maximum of +/-15° for both pitch and roll in 12 rpm mode, and +/-23.5° for both pitch and roll in 6 rpm mode. The output stage of the transmitter in all variants uses a two-cavityklystron amplifier.
In 1998, the Inspector General of the Department of Defense reported thatSPS-40 and SPS-49 radars in Bahrain were "unusable because the equipment operates on a frequency that interferes with the Bahrain telecommunications services".[2]
United States
Republic of China
Italy
Australia
Canada
New Zealand8_ANZ.jpg)
South KoreaAs of 2014, there are eleven configurations of the AN/SPS-49(V).
