The intrusion lasted between 4 and 5 minutes and was seen by viewers along the East Coast. The interruption occurred during a presentation of The Falcon and the Snowman. Eastern Time on April 27, 1986, HBO (Home Box Office) had its satellite signal feed from its operations center on Long Island in Hauppauge, New York interrupted by a man calling himself "Captain Midnight". MacDougall's message as seen by HBO viewers, behind the SMPTE color bars.Īt 12:32 a.m. Īs a cable television operator connects itself in the signal path between individual stations and the system's subscribers, broadcasters have fallen victim to signal tampering on cable systems on multiple occasions. Other methods that have been used in North America to intrude on legal broadcasts include breaking into the transmitter area and splicing audio directly into the feed. All that is required is an FM transmitter that can overpower the same frequency as the station being its rebroadcast.
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Hijacking incidents have involved local TV and radio stations as well as cable and national networks.Īlthough television, cable, and satellite broadcast signal intrusions tend to receive more media coverage, radio station intrusions are more frequent, as many simply rebroadcast a signal received from another radio station.
For unauthorized broadcasting in general, see Pirate broadcasting.Ī broadcast signal intrusion is the hijacking of broadcast signals of radio, television stations, cable television broadcast feeds or satellite signals without permission or license. "Broadcast signal piracy" redirects here.
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