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  2. Wireless microphone - Wikipedia

    en.wikipedia.org/wiki/Wireless_microphone

    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 transmitter in the microphone body, which transmits the audio signal from the ...

  3. Very high frequency - Wikipedia

    en.wikipedia.org/wiki/Very_high_frequency

    Very high frequency (VHF) is the ITU designation [1] for the range of radio frequency electromagnetic waves (radio waves) from 30 to 300 megahertz (MHz), with corresponding wavelengths of ten meters to one meter. Frequencies immediately below VHF are denoted high frequency (HF), and the next higher frequencies are known as ultra high frequency ...

  4. Wireless microphone licensing - Wikipedia

    en.wikipedia.org/wiki/Wireless_microphone_licensing

    In the UK, the use of wireless microphone systems requires a Wireless Telegraphy Act license, except for the license-free bands of 173.8–175.0 MHz and 863–865 MHz, sometimes referred to as "Channel 70" (not to be confused with TV Channel 69, which was 854–862 MHz and always required a license from JFMG Ltd, [1] although licenses are no longer available for that band).

  5. Comparison of audio coding formats - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_audio_coding...

    Speech, VoIP, Low latency, Studio/transmitter link, wireless audio, voice recording, WebRTC Yes Yes No Yes [29] No OSQ: Steinberg: 2002 ? Free WaveLab: FFmpeg (decoding only) Music archival Yes No Yes No No QOA: Dominic Szablewski 2023-02-02 1.0 (2023-04-24) Free qoa, FFmpeg (decoding only) - Yes Yes No No No Sac: Sebastian Lehmann 2006-09-01

  6. Radio receiver - Wikipedia

    en.wikipedia.org/wiki/Radio_receiver

    FM broadcasting is permitted in the FM broadcast bands between about 65 and 108 MHz in the very high frequency (VHF) range. The exact frequency ranges vary somewhat in different countries. FM stereo radio stations broadcast in stereophonic sound (stereo), transmitting two sound channels representing left and right microphones. A stereo receiver ...

  7. Mobile radio - Wikipedia

    en.wikipedia.org/wiki/Mobile_radio

    National Guard operating a mobile radio station (1922) Mobile radio on board of a Zeppelin Mobile radio or mobiles refer to wireless communications systems and devices which are based on radio frequencies (using commonly UHF or VHF frequencies), and where the path of communications is movable on either end.

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