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Satellite subcarrier audio - Wikipedia
https://en.wikipedia.org/wiki/Satellite_subcarrier_audio#:~:text=From%20Wikipedia%2C%20the%20free%20encyclopedia%20Satellite%20subcarrier%20audio,transmission%20%28usually%20video%29%20on%20a%20specific%20satellite%20transponder.
Broadcast Radio Subcarriers or Subsidiary …
https://www.fcc.gov/media/radio/subcarriers-sca
A subcarrier, known also as Subsidiary Communications Authority or SCA, is a separate audio or data channel that is transmitted along with the main audio signal over a broadcast station. These subcarrier channels are not receivable with a regular radio; special receivers are required. Subcarriers are used for many different purposes, including (but not …
Subcarrier - Private Audio
https://www.liquisearch.com/subcarrier/private_audio
Subcarrier - Private Audio. Private Audio. Before satellite, Muzak was transmitted to department stores on FM subcarriers. The United States Federal Communications Commission (FCC) also allowed betting parlors in New York state to get horse racing results from the state gaming commission via the same technology.
Satellite subcarrier audio - WikiMili, The Best Wikipedia ...
https://wikimili.com/en/Satellite_subcarrier_audio
Satellite subcarrier audio Last updated December 01, 2021. Satellite subcarrier audio is audio transmitted by way of satellite that uses a separate analog or digital signal carried on a main radio transmission (usually video) on a specific satellite transponder.More technically, it is an already-modulated signal, which is then modulated into another signal of higher frequency and …
Receiving the ‘Hidden’ Broadcast FM SCA Audio Subcarrier ...
https://www.rtl-sdr.com/receiving-the-hidden-broadcast-fm-sca-audio-subcarrier-with-an-rtl-sdr-and-sdr/
A common subcarrier is Radio Data System (RDS), and this is what provides song and radio station text information to your radio. Another less commonly seen subcarrier is the Subsidiary communications authority (SCA), which is a separate audio channel hidden within the broadcast FM signal.
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