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  2. Air traffic control radar beacon system - Wikipedia

    en.wikipedia.org/wiki/Air_traffic_control_radar...

    Mode 3/A is used to identify each aircraft in the radar's coverage area. Mode C is used to request/report an aircraft's altitude. Two other modes, mode 4 and mode S, are not considered part of the ATCRBS system, but they use the same transmit and receive hardware. Mode 4 is used by military aircraft for the Identification Friend or Foe (IFF ...

  3. Radar beacon - Wikipedia

    en.wikipedia.org/wiki/Radar_beacon

    Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1] – defined as "A transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the ...

  4. List of awareness ribbons - Wikipedia

    en.wikipedia.org/wiki/List_of_awareness_ribbons

    List of awareness ribbons. merged Pink and blue ribbon Discuss Proposed since March 2024. This is a partial list of awareness ribbons. The meaning behind an awareness ribbon depends on its colors and pattern. Since many advocacy groups have adopted ribbons as symbols of support or awareness, ribbons, particularly those of a single color, some ...

  5. Cancer rates in millennials, Gen X-ers have risen starkly in ...

    www.aol.com/lifestyle/cancer-rates-millennials...

    Younger generations are being diagnosed with breast, pancreatic, liver and other cancers earlier at higher rates than previous generations — and are dying more often, new research warns.

  6. Identification friend or foe - Wikipedia

    en.wikipedia.org/wiki/Identification_friend_or_foe

    Identification, friend or foe ( IFF) is a combat identification system designed for command and control. It uses a transponder that listens for an interrogation signal and then sends a response that identifies the broadcaster. IFF systems usually use radar frequencies, but other electromagnetic frequencies, radio or infrared, may be used. [1]

  7. DEFCON - Wikipedia

    en.wikipedia.org/wiki/DEFCON

    DEFCON. The defense readiness condition ( DEFCON) is an alert state used by the United States Armed Forces. [ 1][ 2] For security reasons, the US military does not announce a DEFCON level to the public. [ 1] The DEFCON system was developed by the Joint Chiefs of Staff (JCS) and unified and specified combatant commands. [ 3]

  8. AN/APG-63 radar family - Wikipedia

    en.wikipedia.org/wiki/AN/APG-63_radar_family

    The APG-63(V)3 radar is a more modern variant of the APG-63(V)2, applying the same AESA technology utilized in Raytheon's APG-79. The (V)3 is currently being retrofitted into F-15C/D and deployed in Singapore's new F-15SG aircraft and Saudi Arabia's new F-15SA aircraft. Raytheon delivered the first prototype APG-63(V)3 system in June 2006. [2]

  9. AN/APG-85 - Wikipedia

    en.wikipedia.org/wiki/AN/APG-85

    The AN/APG-85 is an active electronically scanned array (AESA) radar system designed by Northrop Grumman for the Lockheed Martin F-35 Lightning II.The AN/APG-85 is a further development of the AN/APG-81 and is planned to be installed in all three variants of the F-35 aircraft from Lot 17 and onwards, which are planned to enter production in 2025.