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  2. Douglas F3D Skyknight - Wikipedia

    en.wikipedia.org/wiki/Douglas_F3D_Skyknight

    The F-10 was used as a radar testbed to develop the APQ-72 radar. The nose of an F-4 Phantom was added to the front of an F-10B. Another F-10 had a modified radome installed by the radar manufacturer Westinghouse. Yet another TF-10B was modified with the nose from an A-4 Skyhawk. [49] In 1968, three Skyknights were transferred to the U.S. Army.

  3. Radio spectrum - Wikipedia

    en.wikipedia.org/wiki/Radio_spectrum

    These employ huge ground dipole antennas 20–60 km long excited by megawatts of transmitter power, ... 10 900 – 20 000: K: 20 000 – 40 000: Ka: 20 000 – 36 000 ...

  4. AN/FRD-10 - Wikipedia

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

    The AN/FRD-10 is a United States Navy circularly disposed antenna array (CDAA), built at a number of locations during the Cold War for high frequency radio direction finding and signals intelligence. In the Joint Electronics Type Designation System , FRD stands for fixed ground, radio, direction finding. 14 sites were originally constructed as ...

  5. Biden signs Social Security Fairness Act into law

    www.aol.com/biden-signs-social-security-fairness...

    President Joe Biden signed the Social Security Fairness Act into law Sunday afternoon, marking what is expected to be one of the last major pieces of legislation of his presidency. Prior to ...

  6. List of radars - Wikipedia

    en.wikipedia.org/wiki/List_of_radars

    P-12 Modernize version with digital function, new carbon antenna in Yagi shape, and higher range up to 350 km. P-18 Modernize version with new antennas, bigger range, digitalised. P-40 Medium-range surveillance and target acquisition; AN/TPS-70 long range 3D radar. Giraffe radar modernize version, and digital with PASARS anti-aircraft system.

  7. Man accused of attacking Colorado reporter has had mental ...

    www.aol.com/man-accused-attacking-colorado...

    A man accused of attacking a Colorado reporter after questioning whether he was a citizen and saying “This is Trump’s America now” has had mental health issues for years, his lawyer said.