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  2. List of transponder codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Transponder_Codes

    Reserved for special use by Potomac TRACON. [3] 5100, 5200, 5300, 5500 US: Internal ARTCC subsets assigned by Enroute Safety and Operations Support. (Blocks of discrete codes except that xx00 is used as a non-discrete code after all discrete codes are assigned.) [3] 5100–5300 US

  3. Potomac Consolidated TRACON - Wikipedia

    en.wikipedia.org/wiki/Potomac_Consolidated_TRACON

    Potomac Consolidated TRACON. Potomac TRACON (Terminal Radar Approach CONtrol), abbreviated PCT, is the FAA air traffic control facility in charge of the Washington, D.C. airspace and Washington Special Flight Rules Area, assigning squawk codes. [1] It is based in Warrenton, Virginia, United States.

  4. LiveTV - Wikipedia

    en.wikipedia.org/wiki/LiveTV

    In June 2006, Live TV won a 1 MHz wide block of frequencies in the 800 MHz air-ground telephone auction conducted by the U.S. Federal Communications Commission (FCC). [1] This license will allow air-ground-air communications to take place. An affiliate of Aircell was the winner of the larger 3 MHz wide block of frequencies. Plans for utilizing ...

  5. Washington, D.C., Special Flight Rules Area - Wikipedia

    en.wikipedia.org/wiki/Washington,_D.C.,_Special...

    Flight within the FRZ is restricted to governmental, certain scheduled commercial and a limited set of waivered flights. Two general aviation airports (known as the "Maryland 3" or the "DC 3") are located inside the DC FRZ: College Park Airport (CGS) and Potomac Airport (VKX). [9] Washington Executive/Hyde Field (W32) closed permanently in 2022 ...

  6. White spaces (radio) - Wikipedia

    en.wikipedia.org/wiki/White_spaces_(radio)

    Also as part of the demo, a live Xbox/Kinect video chat was established between two Xbox/Kinect units connected through the same TV whitespace connection. These applications were demonstrated under a highly challenging radio propagation environment with more than 120 dB link loss through buildings, foliage, walls, furniture, people etc. and ...

  7. List of ESPN Radio affiliates - Wikipedia

    en.wikipedia.org/wiki/List_of_ESPN_Radio_affiliates

    The following is a list of full-power radio stations and HD Radio subchannels in the United States broadcasting ESPN Radio programming, which can be sorted by their call signs, frequencies, city of license, state and brandings. [1] Gray background indicates an HD Radio subchannel.

  8. Broadcast auxiliary service - Wikipedia

    en.wikipedia.org/wiki/Broadcast_auxiliary_service

    A broadcast auxiliary service (BAS) is any radio frequency system used by a radio station or TV station, which is not part of its direct broadcast to listeners or viewers. . These are essentially internal-use backhaul channels not intended for actual reception by the public, but part of the airchain required to get those signals back to the broadcast studio from the field. usually to be ...

  9. Channel 6 radio stations in the United States - Wikipedia

    en.wikipedia.org/wiki/Channel_6_radio_stations...

    Under the original NTSC-M analog standards, a TV station's audio and video components are broadcast separately, with the audio transmitted as an FM signal. In 1945, TV channel 6 was assigned use of 82-88 MHz, [10] with the channel's audio located at a center frequency of 87.75 MHz. That same year the standard FM broadcasting band was reassigned ...