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  2. Data item descriptions - Wikipedia

    en.wikipedia.org/wiki/Data_Item_Descriptions

    A United States data item description (DID) is a completed document defining the data deliverables required of a United States Department of Defense contractor. [1] A DID specifically defines the data content, format, and intended use of the data with a primary objective of achieving standardization objectives by the U.S. Department of Defense.

  3. 16-line message format - Wikipedia

    en.wikipedia.org/wiki/16-line_message_format

    16-line message format, or Basic Message Format, is the standard military radiogram format (in NATO allied nations) for the manner in which a paper message form is transcribed through voice, Morse code, or TTY transmission formats. The overall structure of the message has three parts: HEADING (which can use as many as 10 of the format's 16 ...

  4. Printer tracking dots - Wikipedia

    en.wikipedia.org/wiki/Printer_tracking_dots

    Printer tracking dots, also known as printer steganography, DocuColor tracking dots, yellow dots, secret dots, or a machine identification code (MIC), is a digital watermark which many color laser printers and photocopiers produce on every printed page that identifies the specific device that was used to print the document.

  5. USA-291 - Wikipedia

    en.wikipedia.org/wiki/USA-291

    USA-291, or Wideband Global SATCOM 10 (WGS-10) is a United States military communications satellite operated by the United States Air Force as part of the Wideband Global SATCOM program. Launched in 2019, it was the tenth WGS satellite to reach orbit. It is in geostationary orbit. WGS-10 was procured by the United States Air Force. [3]

  6. Mobile User Objective System - Wikipedia

    en.wikipedia.org/wiki/Mobile_User_Objective_System

    The Mobile User Objective System (MUOS) is a United States Space Force narrowband military communications satellite system that supports a worldwide, multi-service population of users in the ultra high frequency (UHF) band. The system provides increased communications capabilities to newer, smaller terminals while still supporting ...

  7. USA-235 - Wikipedia

    en.wikipedia.org/wiki/USA-235

    USA-235, also known as Advanced Extremely High Frequency 2 or AEHF-2, is a military communications satellite operated by the United States Air Force. It is the second of six satellite to be launched as part of the Advanced Extremely High Frequency program, which replaced the earlier Milstar system.

  8. Aeronautical chart conventions (United States) - Wikipedia

    en.wikipedia.org/wiki/Aeronautical_chart...

    Military airstrips (without hard-surface runways) are shown with two concentric circles. Private airports are shown with the letter "R" inside a circle. A heliport is designated with "H" in a circle. An unverified airstrip is shown with a "U" in a circle. An abandoned airport with paved runways is shown with a circle having an "X" over it.

  9. USA-195 - Wikipedia

    en.wikipedia.org/wiki/USA-195

    USA-195, or Wideband Global SATCOM 1 (WGS-1) is a United States military communications satellite operated by the United States Air Force as part of the Wideband Global SATCOM programme. Launched in 2007, it was the first WGS satellite to reach orbit. It is stationed at a longitude of 174.8° East (Ocean Pacific). [3]