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What (who) is upper sideband - definition
IN COMMUNICATIONS, EITHER OF THE TWO BANDS OF FREQUENCIES, ONE JUST ABOVE AND ONE JUST BELOW A CARRIER FREQUENCY, THAT RESULT FROM MODULATION OF A CARRIER WAVE
Upper sideband; Lower sideband; Double sideband; Sidebands; Upper Sideband; Lower Sideband; Double-sideband; Doublesideband; DSB-AM; Twin sideband; Double-sideband transmission
![[[Frequency]] spectrum of a typical modulated AM or FM radio signal.](https://commons.wikimedia.org/wiki/Special:FilePath/Modulated radio signal frequency spectrum.svg?width=200 "[[Frequency]] spectrum of a typical modulated AM or FM radio signal.")
sideband
¦ noun Telecommunications each of two frequency bands either side of the carrier wave, which contain the modulated signal.
Upper school
IN ENGLAND, SCHOOLS WITHIN SECONDARY EDUCATION; SECTION OF A LARGER SCHOOL
Upper School; Upper schools
Upper schools in the UK are usually schools within secondary education. Outside England, the term normally refers to a section of a larger school.
upper school
IN ENGLAND, SCHOOLS WITHIN SECONDARY EDUCATION; SECTION OF A LARGER SCHOOL
Upper School; Upper schools
¦ noun
1. (in the UK) a secondary school for children aged from about fourteen upwards.
2. the section of a school comprising or catering for the older pupils.
Wikipedia
Sideband
In radio communications, a sideband is a band of frequencies higher than or lower than the carrier frequency, that are the result of the modulation process. The sidebands carry the information transmitted by the radio signal. The sidebands comprise all the spectral components of the modulated signal except the carrier. The signal components above the carrier frequency constitute the upper sideband (USB), and those below the carrier frequency constitute the lower sideband (LSB). All forms of modulation produce sidebands.
