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  2. FM broadcasting - Wikipedia

    en.wikipedia.org/wiki/FM_broadcasting

    It belongs to FM radio station KWNR, in Henderson, Nevada, and broadcasts at 95.5 MHz. FM broadcasting is a method of radio broadcasting that uses frequency modulation ( FM) of the radio broadcast carrier wave. Invented in 1933 by American engineer Edwin Armstrong, wide-band FM is used worldwide to transmit high-fidelity sound over broadcast radio.

  3. Silent disco - Wikipedia

    en.wikipedia.org/wiki/Silent_disco

    Silent disco. A silent disco or silent rave is an event where people dance to music listened to on wireless headphones. [1] Rather than using a speaker system, music is broadcast via a radio transmitter with the signal being picked up by wireless headphone receivers worn by the participants. Those without the headphones hear no music, giving ...

  4. Television transmitter - Wikipedia

    en.wikipedia.org/wiki/Television_transmitter

    Television transmitter. A television transmitter is a transmitter that is used for terrestrial (over-the-air) television broadcasting. It is an electronic device that radiates radio waves that carry a video signal representing moving images, along with a synchronized audio channel, which is received by television receivers ('televisions' or ...

  5. Television broadcaster - Wikipedia

    en.wikipedia.org/wiki/Television_broadcaster

    Television broadcaster. A television broadcaster or television network is a telecommunications network for the distribution of television content, where a central operation provides programming to many television stations, pay television providers or, in the United States, multichannel video programming distributors.

  6. Broadcast television systems - Wikipedia

    en.wikipedia.org/wiki/Broadcast_television_systems

    Broadcast television systems (or terrestrial television systems outside the US and Canada) are the encoding or formatting systems for the transmission and reception of terrestrial television signals. Analog television systems were standardized by the International Telecommunication Union (ITU) in 1961, [ 1] with each system designated by a ...

  7. Wireless microphone - Wikipedia

    en.wikipedia.org/wiki/Wireless_microphone

    Singer Cody Simpson using a wireless microphone headset in a 2013 concert in Montreal. A wireless microphone, or cordless microphone, is a microphone without a physical cable connecting it directly to the sound recording or amplifying equipment with which it is associated. Also known as a radio microphone, it has a small, battery-powered radio ...

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