https://en.wikipedia.org/wiki/Captai...gnal_intrusion
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On April 27, 1986, American electrical engineer and business owner John R. MacDougall (using the pseudonym "Captain Midnight") jammed the Home Box Office (HBO) satellite signal on Galaxy 1 during a showing of the film The Falcon and the Snowman. He broadcast a message lasting four and a half minutes, seen by the eastern half of the United States (accounting for more than half of HBO's 14.6 million subscribers at the time) protesting HBO's rates for satellite dish owners, which he considered too expensive.
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PS
the plot
- i popped here from my interest for
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The ATIS message is sent at a transmission rate of 15 to 25 words per minute and must not exceed 30 seconds in its entire length. The message includes the FCC-assigned callsign of the earth station, its telephone number, a ten-digit serial number, and sometimes other information which is voluntary. The telephone number must immediately connect to personnel who can resolve radio interference and other frequency coordination issues. The serial number cannot be easily changed.
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i m in development stage of ultimately FVD DISPLAY with all tv system info simultaneously show on desired channel
https://en.wikipedia.org/wiki/Broadcast_call_signs
some car radios have a call bank memory with station name like panasonic ....by area