AN/SPS-49

Infobox Radar
name = AN/SPS-49

---

caption = AN/SPS-49 on USS|Abraham Lincoln|CVN-72
country = United States
introdate = 1975
number = 200+
type = 2D Air-search
frequency = L band 850–942 MHz
range = convert|250|nmi|km|abbr=on
altitude = up to 150,000 ft
(45,720 m)
diameter = convert|24|ft|m|abbr=on × 14 ft 3 in
(7.3 m × 4.3 m)
azimuth = 0-360°
elevation =
precision = ­0.03 nmi range
0.5 deg azimuth (SPS-49(V)5)The AN/SPS-49 is a United States Navy two-dimensional, long range air search radar built by Raytheon that is capable of providing contact bearing and range. The radar is also used by several other countries, such as Australia, Canada, Spain, Poland and Taiwan aboard "Oliver Hazard Perry"-class frigates and Canadian "Halifax"-class frigates.

Operation

First tested in 1965 aboard USS|Gyatt|DD-712 and introduced in 1975, the SPS-49 serves as a primary air-search radar aboard numerous ships world wide. It is also serves in a complementary role aboard Aegis cruisers with the AN/SPY-1. It is an L band radar operating in the 850–942 MHz band and has a range of convert|250|nmi|km. The orange-peel parabolic shape of the antenna creates a narrow 3.3° beam reducing the probability of detection or jamming. It is also capable of rotating at 6 rpm for long range mode or 12 rpm in short range mode. [https://wrc.navair-rdte.navy.mil/warfighter_enc/weapons/SensElec/RADAR/ansps49.htm NAVAIR warfighter encyclopedia] ] To guard against incoming missiles, default operation of the AN/SPS-49A(V)1 is at 12 rpm, in order to provide more frequent scans. The SPS-49A is capable of full-range detection in either 6 or 12 rpm modes.

Variants

*AN/SPS49(V)1 - Baseline radar (Various CVN, LHA, LSD and other ships)
*AN/SPS49(V)2 - (V)1 radar without the coherent side lobe cancellation feature (Sclass|Oliver Hazard Perry|frigate|1s)
*AN/SPS49(V)3 - (V)1 radar with the radar video processor (RVP) interface (FC-1) (USS|Long Beach|CGN-9)
*AN/SPS49(V)4 - (V)2 with the RVP interface (Sclass|Oliver Hazard Perry|frigate|1s)
*AN/SPS49(V)5 - (V)1 with automatic target detection (ATD) (New Threat Upgrade (NTU) ships)
*AN/SPS49(V)6 - (V)3 system with double shielded cables and a modified cooling system (USS|Ticonderoga|CG-47)
*AN/SPS49(V)7 - (V)5 system with a (V)6 cooling system (Aegis combat system)
*AN/SPS49(V)8 - (V)5 system enhanced to include the AEGIS Tracker modification kit (Aegis combat system)
*AN/SPS49(V)9 - (V)5 with medium PRF upgrade (MPU)Source:
*AN/SPS-49A(V)1 - Developed in the mid 1990s. Added radial speed determination on each target, each scan. Improved clutter rejection

References

ee also

*List of radars

External links

* [http://www.globalsecurity.org/military/systems/ship/systems/an-sps-49.htm GlobalSecurity AN/SPS-49]
* [http://www.tpub.com/content/et/14089/css/14089_26.htm Electronics Technician Volume 4-Radar Systems] - via Tpub