side band

electronics

Also known as: sideband

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Last updated

July 13, 2026

Quick Summary

In electronics, a sideband refers to a band of frequencies that are produced on either side of a carrier frequency during the process of modulation. When a signal is modulated, it creates these sidebands, which carry the information being transmitted.12

There are two main types of sidebands:
* Upper sideband (USB) and Lower sideband (LSB): These are the two bands of frequencies created around the carrier frequency.12
* Single-sideband (SSB) modulation is a technique where the normal carrier signal is eliminated, and one of the two sidebands is removed, usually through filtering. This method is used in radio and telephone communications.3

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television
Basic receiver circuits
…and picture carriers and their side bands reach a relatively fixed level of about one volt, whereas the signal levels applied to the antenna terminals may vary, depending on the distance of the station and other factors, from a few millionths to a few tenths of a volt. Intermediate-frequency amplifiers…
Read More
…and picture carriers and their side bands reach a relatively fixed level of about one volt, whereas the signal levels applied to the antenna terminals may vary, depending on the distance of the station and other factors, from a few millionths to a few tenths of a volt. Intermediate-frequency amplifiers…
Read More