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  2. Multichannel Television Sound - Wikipedia

    en.wikipedia.org/wiki/Multichannel_Television_Sound

    Multichannel Television Sound (MTS) is the method of encoding three additional audio channels into analog 4.5 MHz audio carriers on System M and System N.The system was developed by an industry group known as the Broadcast Television Systems Committee (BTSC), a parallel to color television's National Television System Committee, which developed the NTSC television standard.

  3. ATSC tuner - Wikipedia

    en.wikipedia.org/wiki/ATSC_tuner

    Selective tuning is the process by which the radio frequency (RF) of the television channel is selected by a receiver from within a band of transmitted RF signals. The tuner usually performs the function of frequency-agile selection, along with rejection of unwanted out-of-band signals.

  4. Digital television adapter - Wikipedia

    en.wikipedia.org/wiki/Digital_television_adapter

    A digital TV converter box. A digital television adapter (DTA), commonly known as a converter box, DTV converter , or decoder box, is a television tuner that receives a digital television (DTV) transmission, and converts the digital signal into an analog signal that can be received and displayed on an analog television set.

  5. Datacasting - Wikipedia

    en.wikipedia.org/wiki/Datacasting

    Datacasting (data broadcasting) is the transmission of data over a wide area using radio waves. It typically refers to supplemental information sent by television stations alongside digital terrestrial television (DTT) signals. However, datacasting can also be applied to digital data signals carried on analog TV or radio broadcasts.

  6. Broadcast transmitter - Wikipedia

    en.wikipedia.org/wiki/Broadcast_transmitter

    A broadcast transmitter is an electronic device that radiates radio waves modulated with information content intended to be received by the general public. Examples are a radio broadcasting transmitter which transmits audio (sound) to broadcast radio receivers (radios) owned by the public, or a television transmitter, which transmits moving images to television receivers (televisions).

  7. Cable converter box - Wikipedia

    en.wikipedia.org/wiki/Cable_Converter_Box

    Pace Micro Technology DC757X HD cable box. A cable converter box or television converter box is an electronic tuning device that transposes/converts channels from a cable television service to an analog RF signal on a single channel, usually VHF channel 3 or 4, or to a different output for digital televisions such as HDMI.

  8. QAM (television) - Wikipedia

    en.wikipedia.org/wiki/QAM_(television)

    An integrated QAM tuner allows the free reception of unscrambled digital programming sent "in the clear" by cable providers, usually local broadcast stations, cable radio channels, or in the case of providers which have transitioned to do so, Public-access television cable TV channels.

  9. In-band signaling - Wikipedia

    en.wikipedia.org/wiki/In-band_signaling

    In voice over IP (VoIP), DTMF signals are transmitted in-band by two methods. When transmitted as audio tones in the voice stream, voice encoding must use a lossless coder, such as μ-law or A-law pulse-code modulation, to preserve the integrity of frequency signals. Still, this method proved often unreliable and was subject to interference ...