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    The Northrop Grumman AN/APR-39 family of radar warning receivers is for Navy fixed-wing aircraft, helicopters, and naval vessels.
    John Keller
    May 28, 2025
    The AN/APR-39 family of radar warning receivers detects radar threats to aircraft, such as radar ground sites and particularly radar-guided missiles.

    RF/Analog

    The NASA Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) captured this image of the Sacramento-San Joaquin River Delta, Calif., in which red indicates vegetation, dark blue indicates water, and blue-gray areas indicate buildings and paved surfaces.
    The NGJ midband is an advanced electronic attack system that denies, disrupts, and degrades enemy communications and air-defense radar systems.
    Telesat uses the Rohde & Schwarz signal generator R&S SMW and spectrum and signal analyzer R&S FSW to qualify and verify new RF chipsets.
    A U.S. Air Force loadmaster places a HIMARS launcher and artillery crews aboard a C-17 Globemaster III cargo jet using night-vision goggles during an exercise last March.
    An Air Force electronic warfare systems technician, works on an AN/ALQ-184 electronic countermeasures pod at Misawa Air Base, Japan, last month.
    A Navy sonar technician conducts routine electronics inspections aboard the fast-attack submarine USS Virginia (SSN 774) earlier this year.
    A Mine Countermeasures Unmanned Surface Vessel (MCM-USV) is craned aboard the littoral combat ship USS Canberra (LCS 30) last month. The vessel's counter-mine sensor and weapons payloads help locate, identify, and destroy ocean mines.
    Army high-power microwave weapons operators train in the Philippines last month.
    John Keller
    May 15, 2025
    PROTEAN project seeks to help contractors bring their EW, electromagnetic warfare, and weapons capabilities for integration on uncrewed vehicles.
    U.S. Marine Corps personnel conduct drills in command and control, sensor capabilities, and multi-domain operations.
    John Keller
    May 14, 2025
    Sensors should transmit CBRN data through a common operating picture for situational awareness for soldiers operating on foot and in ground vehicles.
    A U.S. Air Force operations superintendent manipulates a UHF radio during exercise Astral Knight 20 at Malbork Air Base, Poland, in 2020. Astral Knight 20 is an integrated air- and missile-defense exercise.
    John Keller
    May 14, 2025
    The IBCS air command-and-control (C2) system that helps air and missile defenders make quick decisions and adapt quickly to changing conditions.
    ACVs are wheeled armored combat vehicles able to move Marine infantry warfighters from ships offshore to fight their way onto invasion beaches.
    John Keller
    May 13, 2025
    ACVs are wheeled armored combat vehicles able to move Marine infantry warfighters from ships offshore to fight their way onto invasion beaches.
    A U.S. Navy F-5N Tiger-II from a adversary training squadron takes off from Naval Air Station Key West. Adversary squadrons use the Northrop Grumman F-5 for air combat maneuvering training.
    John Keller
    May 13, 2025
    STS will handle updates and modifications to F-16 and F-5 APG-66, APG-68, and APG-83 airborne radar systems; moving maps; pods; and weapons.