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  2. Radar beacon - Wikipedia

    en.wikipedia.org/wiki/Radar_beacon

    Radar beacon. Racon signal as seen on a radar screen. This beacon receives using sidelobe suppression and transmits the letter "Q" in Morse code near Boston Harbor (Nahant) 17 January 1985. Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1 ...

  3. Maidenhead Locator System - Wikipedia

    en.wikipedia.org/wiki/Maidenhead_Locator_System

    The Maidenhead Locator System (a.k.a. QTH Locator and IARU Locator) is a geocode system used by amateur radio operators to succinctly describe their geographic coordinates, which replaced the deprecated QRA locator, which was limited to European contacts. [1] Its purpose is to be concise, accurate, and robust in the face of interference and ...

  4. Local access and transport area - Wikipedia

    en.wikipedia.org/wiki/Local_access_and_transport...

    Map of LATAs in the US. Local access and transport area (LATA) is a term used in U.S. telecommunications regulation.It represents a geographical area of the United States under the terms of the Modification of Final Judgment (MFJ) entered by the United States District Court for the District of Columbia in Civil Action number 82-0192 or any other geographic area designated as a LATA in the ...

  5. Open Location Code - Wikipedia

    en.wikipedia.org/wiki/Open_Location_Code

    Open Location Code. The Open Location Code ( OLC) is a geocode based in a system of regular grids for identifying an area anywhere on the Earth. [1] It was developed at Google's Zürich engineering office, [2] and released late October 2014. [3] Location codes created by the OLC system are referred to as " plus codes ".

  6. Ronald Reagan Ballistic Missile Defense Test Site - Wikipedia

    en.wikipedia.org/wiki/Ronald_Reagan_Ballistic...

    An exoatmospheric kill vehicle ( kinetic penetrator, mid-phase) is launched from Meck Island on 3 December 2001. The Ronald Reagan Ballistic Missile Defense Test Site, commonly referred to as the Reagan Test Site (formerly Kwajalein Missile Range ), is a missile test range in Marshall Islands ( Pacific Ocean ).

  7. List of Maryland area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Maryland_area_codes

    The blue area is assigned area codes 301, 240, and 227; the red area is area codes 410, 443 and 667. The state of Maryland is served by the following area codes: Area codes. Numbering plan area. 227.

  8. List of Kentucky area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Kentucky_area_codes

    The state of Kentucky is served by the following area codes: 270/364, which serve western Kentucky and the western half of South Central Kentucky. 502, which serves the Louisville and Frankfort areas. 606, which serves eastern Kentucky, including the Eastern Coalfield. 859, which serves the Lexington area and Northern Kentucky.

  9. List of Missouri area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Missouri_area_codes

    The area codes are allocated within the North American Numbering Plan (NANP). The two original area codes for Missouri in 1947 were 314 and 816. Area code 417 was split off from 816 in 1950, and the other area codes followed more than 40 years later, due to the proliferation of Cellular Phones and Pagers.

  10. List of Iowa area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Iowa_area_codes

    The map to the right is clickable, click on any of the area codes on the map to go to the area code for that region or use the text links below. None of the Iowa codes are expected to need relief in the immediate future. 319: Cedar Rapids, Waterloo, Iowa City, and Cedar Falls (original area code created in 1947)

  11. List of Illinois area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Illinois_area_codes

    This is a list of the area codes in the state of Illinois and its numbering plan areas in the North American Numbering Plan.. All NPAs within Illinois. 217/447: Central Illinois, including the region running west from the Illinois-Indiana border through Danville, Effingham, Champaign–Urbana, Decatur, Springfield, Quincy until Illinois' western border with Missouri and Iowa.