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  2. Ground proximity warning system - Wikipedia

    en.wikipedia.org/wiki/Ground_proximity_warning...

    A ground proximity warning system (GPWS) is a system designed to alert pilots if their aircraft is in immediate danger of flying into the ground or an obstacle. The United States Federal Aviation Administration (FAA) defines GPWS as a type of terrain awareness and warning system (TAWS). [1] More advanced systems, introduced in 1996, [2] are ...

  3. Ground-Based Midcourse Defense - Wikipedia

    en.wikipedia.org/wiki/Ground-Based_Midcourse_Defense

    This test incorporated radar and targets testing. CMCM-2B/FTC-02B 13 Apr 2006: Success This test was a radar certification flight and featured a missile system powered by a two-stage SR-19 rocket flown from the Kauai Test Facility in the Pacific Missile Range Facility. The payload included complex countermeasures, a mock reentry vehicle, and on ...

  4. Terrain awareness and warning system - Wikipedia

    en.wikipedia.org/wiki/Terrain_awareness_and...

    Terrain awareness and warning system. In aviation, a terrain awareness and warning system (TAWS) is generally an on-board system aimed at preventing unintentional impacts with the ground, termed "controlled flight into terrain" accidents, or CFIT. [1] The specific systems currently in use are the ground proximity warning system (GPWS) and the ...

  5. Air Defense Identification Zone (North America) - Wikipedia

    en.wikipedia.org/wiki/Air_Defense_Identification...

    ADIZ boundaries for the United States and Canada as of 2018. ADIZ boundaries for Alaska. The Air Defense Identification Zone of North America is an air defense identification zone (ADIZ) that covers the airspace surrounding the United States and Canada – in which the ready identification, location, and control of civil aircraft over land or water is required in the interest of national ...

  6. Airborne early warning and control - Wikipedia

    en.wikipedia.org/wiki/Airborne_early_warning_and...

    A Royal Air Force Boeing E-3 Sentry over North Yorkshire. An airborne early warning and control (AEW&C) system is an airborne radar early warning system designed to detect aircraft, ships, vehicles, missiles and other incoming projectiles at long ranges, as well as performing command and control of the battlespace in aerial engagements by informing and directing friendly fighter and attack ...

  7. AN/ALR-67 radar warning receiver - Wikipedia

    en.wikipedia.org/wiki/AN/ALR-67_radar_warning...

    The AN/ALR-67 countermeasures warning and control system is the standard threat warning system for tactical aircraft and was specifically designed for the A-6E/SWIP, AV-8B, F-14B, F-14D and F/A-18. The system detects, identifies and displays radars and radar-guided weapon systems in the C to J frequency range (about 0.5 to 20 GHz).

  8. General radiotelephone operator license - Wikipedia

    en.wikipedia.org/wiki/General_radiotelephone...

    The general radiotelephone operator license (GROL) is a license granted by the U.S. Federal Communications Commission (FCC) that is required to operate certain radio equipment. It is required for any person who adjusts, maintains, or internally repairs FCC licensed radiotelephone transmitters in the aviation, maritime, and international fixed ...

  9. Civil defense siren - Wikipedia

    en.wikipedia.org/wiki/Civil_defense_siren

    Civil defense siren. There are 8,200 alarm sirens for civil protection throughout Switzerland. They are tested once a year on the first Wednesday in February. [ 1 ]Sound sample ⓘ. A civil defense siren is a siren used to provide an emergency population warning to the general population of approaching danger.