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  2. AN/FLR-9 - Wikipedia

    en.wikipedia.org/wiki/AN/FLR-9

    AN/FLR-9 in Elmendorf, Alaska c. 1964. The AN/FLR-9 is a type of very large circularly disposed antenna array, built at eight locations during the Cold War for HF/DF direction finding of high priority targets.

  3. High-frequency direction finding - Wikipedia

    en.wikipedia.org/wiki/High-frequency_direction...

    High-frequency direction finding, usually known by its abbreviation HF/DF or nickname huff-duff, is a type of radio direction finder (RDF) introduced in World War II. High frequency (HF) refers to a radio band that can effectively communicate over long distances; for example, between U-boats and their land-based headquarters. HF/DF was ...

  4. AN/PRC-150 - Wikipedia

    en.wikipedia.org/wiki/AN/PRC-150

    The AN/PRC-150(C) Falcon II Manpack Radio, is a tactical HF-SSB/ VHF-FM manpack radio manufactured by Harris Corporation. [1] It holds an NSA certification for Type 1 encryption. [2] The PRC-150 is the manpack HF radio for the Harris Falcon II family of radios, introduced in the early 2000s.

  5. AN/FRD-10 - Wikipedia

    en.wikipedia.org/wiki/AN/FRD-10

    Centerboard was a network for processing HF/DF information. [9] The security classification guide that covered all three programs was cancelled in January 2009. [10] [11] Later, the programs Unitary DF and Crosshair sought to unify the military's HF direction finding information into a single data collection network. [12]

  6. AN/PRC-160 - Wikipedia

    en.wikipedia.org/wiki/AN/PRC-160

    The AN/PRC-160 began production in 2017 as the HF manpack component to the Harris Falcon III ecosystem of tactical radios. [4] Several DoD contracts have since been signed by branches of the US military, including a nearly $8 million US Air Force contract for 264 radios. [5]

  7. High Frequency Global Communications System - Wikipedia

    en.wikipedia.org/wiki/High_Frequency_Global...

    The primary HFGCS voice frequencies are 4724.0 kHz, 8992.0 kHz, 11175.0 kHz, and 15016.0 kHz. In addition to the HFGCS, U.S. aircraft frequently use Military Auxiliary Radio System (MARS) HF stations (13927.0 kHz) and Canadian Forces HF stations (11232.0 kHz) to relay messages. Various other discrete frequencies are available, and used, as part ...

  8. SINCGARS - Wikipedia

    en.wikipedia.org/wiki/SINCGARS

    Single Channel Ground and Airborne Radio System (SINCGARS) is a very high frequency combat network radio (CNR) used by U.S. and allied military forces. In the CNR network, the SINCGARS’ primary role is voice transmission between surface and airborne command and control (C2) assets.

  9. AN/ARC-190 - Wikipedia

    en.wikipedia.org/wiki/AN/ARC-190

    The ARC-190 is a military HF radio that operates between 2-30 MHz and transmits at 300+ watts.It features a dual heterodyne receiver/transmitter that uses IF frequencies of 97.8 and 1.8 MHz, an antenna coupler that is pressurized to 7±1 PSI with dry nitrogen (air) which (1) prevents high voltage arcing, (2) prevents corrosion, (3) provides a uniform cooling medium, and one of various controls ...

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