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Revision as of 01:09, 9 January 2025 by TadgStirkland401 (talk | contribs) (Short description)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff) Military aircraft radar warnging receiver (RWR) systemAN/ALR-46 is a radar warning receiver (RWR) that processes received signals from up to 16 hostile radar emitters in the 2–18 GHz frequency range to determine threats to the aircraft. Originally manufactured by Litton Industries and General Instruments, Dalmo-Victor division (now Northrop Grumman), it has been used on several U.S. Air Force aircraft including the A-7D Corsair, B-52 Stratofortress, C-130 Hercules, F-4 Phantom II, F-104 Starfighter, F-105 Thunderchief, F-111 Aardvark and RF-4 Phantom II and others.
History
The first battlefield operational testing of the ALR-46 occurred in August 1972 when a team of Dalmo-Victor and Warner Robins engineers installed the system on F-104G aircraft dubbed "Wild Weasels". Flight testing took place against threats in the Suez Canal area and Egypt. By January 1973, the system had proven reliable and accurate enough to be deployed to an F-105G in Southeast Asia (SEA).
In accordance with the Joint Electronics Type Designation System (JETDS), the "AN/ALR-46" designation represents the 46th design of an Army-Navy electronic device for passive countermeasures signal receiver. The JETDS system also now is used to name all Department of Defense electronic systems.
In 1999, the Situational Awareness Defensive Initiative (SADI) program was created to significantly upgrade the ALR-46. The program was valued at $48 million in 2000, and was expected to run through 2003. Improving situational awareness was the "highest priority modification needed for the B-52".
Technical description
Features
The ALR-46 receiver set allows aircrew to detect the presence of up to 16 threat radars and identify certain characteristics of those radars.
Components
- 4 Amplifier/Detectors
- Signal processor
- Indicator control
- Azimuth indicator
See also
- AN/ALR-20 – USAF B-52 electronic countermeasures receiver system
- AN/ALR-67 – Military aircraft radar warnging receiver (RWR) systemPages displaying short descriptions of redirect targets
- AN/ALQ-218 – Military aircraft passive radar warning receiver (RWR) system
- List of military electronics of the United States
- Joint Electronics Type Designation System – Unclassified designation system for United States military electronic equipment
References
- ^ "B-52H Stratofortress", Airforce Technology, 6 September 2024, retrieved 6 January 2025
- Pike, John (9 January 1999), "AN/ALR-46 Radar Warning Receiver (RWR)", FAS Military Analysis Network, retrieved 6 January 2025
- ^ "AN/ALR-46", Deagal, 2003, retrieved 6 January 2025
- Clarke, Brooke (2001), "Radar Warning Receivers", PRC68, retrieved 6 January 2025
- ^ Brog, Dave, "Weasels and Innovation", WildWeasels.org, retrieved 6 January 2025
- ^ "Long-Range Bombers: Background and Issues for Congress", EveryCRSReport.com, 19 August 2003, retrieved 6 January 2025
- ^ "TB-43-0123 Aviation Electronics Configuration Directory Manual", TPub, retrieved 6 January 2025
External links
| Electronic Warfare of the United States Armed Forces | |
|---|---|
| Active Countermeasures (Jamming) | |
| Passive Radar Warning Receivers | |
| Missile Warning Systems | |
| Flare and Chaff Sytems | |
| Directional IRCM | |
| Dedicated ECM / ESM aircraft | |
