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A broadcast signal intrusion is the hijacking of broadcast signals of radio, television stations, cable television broadcast feeds or satellite signals without permission or licence. Hijacking incidents have involved local TV and radio stations as well as cable and national networks.
Test cards typically contain a set of patterns to enable television cameras and receivers to be adjusted to show the picture correctly (see SMPTE color bars).Most modern test cards include a set of calibrated color bars which will produce a characteristic pattern of "dot landings" on a vectorscope, allowing chroma and tint to be precisely adjusted between generations of videotape or network feeds.
The prevention of piracy on cable and satellite networks has been one of the main factors in the development of Pay TV encryption systems. The early cable-based Pay TV networks used no security. This led to problems with people connecting to the network without paying. Consequently, some methods were developed to frustrate these self-connectors.
Other ways of cable theft were using a cable TV converter box (also known as a descrambler or "black box") to steal all channels and decrypt pay-per-view events, whereas a normal converter would only decrypt the ones paid for by the customer. The cable companies could send an electronic signal, called a "bullet", that would render illegal ...
Comcast/Cox Communications/Time Warner Cable: December 1, 2008: Launched in September 2003. Formerly known as INHD. MET TV - USA MET Network November 23, 2023 Launched on 28 December 1966. National Jewish Television Network: Joel Levitch Basic cable channel broadcasting from New York City. [7] Existed in the 1980s until at least some point in ...
A coaxial cable used to carry cable television onto subscribers' premises A set-top box, an electronic device which cable subscribers use to connect the cable signal to their television sets. Presented unit is a Cisco RNG200N for QAM digital cable television system used in North America.
Noise, static or snow screen captured from a blank VHS tape. Noise, commonly known as static, white noise, static noise, or snow, in analog video, CRTs and television, is a random dot pixel pattern of static displayed when no transmission signal is obtained by the antenna receiver of television sets and other display devices.
It is possible to also get a bad picture if the signal strength of the TV transmitter is too high. An attenuator inserted in the antenna lead-in wire may be used if the television receiver displays signs of overload in the RF front end. Strong out-of-band signals may also affect television reception and may require band-pass filters to reduce ...