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NASA TV (originally NASA Select) is the television service of the National Aeronautics and Space Administration (NASA). It is broadcast by satellite with a simulcast over the Internet . Local cable television providers across the United States and amateur television repeaters may carry NASA TV at their own discretion, as NASA-created content is ...
Specific Area Message Encoding (SAME) is a protocol used for framing and classification of broadcasting emergency warning messages. It was developed by the United States National Weather Service for use on its NOAA Weather Radio (NWR) network, and was later adopted by the Federal Communications Commission for the Emergency Alert System, then subsequently by Environment Canada for use on its ...
Apollo 7 slow-scan TV, transmitted by the RCA command module TV camera. NASA decided on initial specifications for TV on the Apollo command module (CM) in 1962. [2] [ Note 1] Both analog and digital transmission techniques were studied, but the early digital systems still used more bandwidth than an analog approach: 20 MHz for the digital system, compared to 500 kHz for the analog system. [2]
The April 8 solar eclipse will be broadcast live on both network TV and cable channels. NBC will air a two-hour special, "Total Eclipse 2024," at 2 p.m. ET. NBC Nightly News anchor Lester Holt ...
The system is composed of four commercial high definition video cameras which were built to record video of the Earth from multiple angles by having them mounted on the International Space Station. The cameras streamed live video of Earth to be viewed online and on NASA TV on the show Earth Views. Previously-recorded video now plays in a ...
The pages below contain lists of television stations in the U.S. by call sign . Historically, stations to the east of the Mississippi River were given call signs beginning with the letter W, stations to the west K. However, there are exceptions. See the article on North American call signs for more information.
Station identification. Station identification ( ident, network ID, channel ID or bumper) is the practice of radio and television stations and networks identifying themselves on-air, typically by means of a call sign or brand name (sometimes known, particularly in the United States, as a "sounder" or "stinger", more generally as a station or ...
NASA accidentally broadcast a simulation of astronauts being treated for decompression sickness on the International Space Station (ISS) on Wednesday, prompting speculation of an emergency in ...