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  2. 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 ...

  3. VHF Data Link - Wikipedia

    en.wikipedia.org/wiki/VHF_Data_Link

    VHF Data Link. The VHF Data Link or VHF Digital Link ( VDL) is a means of sending information between aircraft and ground stations (and in the case of VDL Mode 4, other aircraft). Aeronautical VHF data links use the band 117.975–137 MHz assigned by the International Telecommunication Union to Aeronautical mobile (R) service.

  4. Secondary surveillance radar - Wikipedia

    en.wikipedia.org/wiki/Secondary_surveillance_radar

    Transponder in a private aircraft squawking 2000. Secondary surveillance radar ( SSR) [1] is a radar system used in air traffic control (ATC), that unlike primary radar systems that measure the bearing and distance of targets using the detected reflections of radio signals, relies on targets equipped with a radar transponder, that reply to each ...

  5. Multiservice tactical brevity code - Wikipedia

    en.wikipedia.org/wiki/Multiservice_tactical...

    Maintain radar awareness on or assume responsibility for specified group. Mother Parent ship. Mud Radar warning receiver (RWR) indication of ground threat. Add clock position/azimuth and radar type, if known. Music Electronic radar jamming and deception. N Nails Radar warning receiver (RWR) indication of an AI radar in search mode. Add clock ...

  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. Over 80,000 Illinois people banned from owning guns still ...

    www.aol.com/news/over-80-000-illinois-people...

    JOHN O'CONNOR. May 16, 2024 at 3:01 AM. SPRINGFIELD, Ill. (AP) — In Illinois, 114,000 people are banned from owning guns because of legal tangles or mental health issues — three-quarters of ...

  8. Print awareness - Wikipedia

    en.wikipedia.org/wiki/Print_awareness

    Print awareness. Print awareness refers to a child's understanding of the nature and uses of print. A child's print awareness is closely associated with his or her word awareness or the ability to recognize words as distinct elements of oral and written communication. Both skills are acquired in the child's natural environment.

  9. List of awareness ribbons - Wikipedia

    en.wikipedia.org/wiki/List_of_awareness_ribbons

    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 colors may refer to more than one cause.