Sageduskordisti on vooluring, mis genereerib sisendsageduse täisarvukordse väljundsignaali, ja mis on laialdaselt kasutusel raadios, mikrolaineelektroonikas ja kellaaja genereerimisel, et toota kõrgsagedussignaale väga stabiilsetest madalsageduslikest allikatest.
A frequency multiplier is a circuit that generates an output signal with a frequency that is an integer multiple (harmonic) of its input frequency. They are heavily used in radio, microwave electronics, and clock generation to produce high-frequency signals from highly stable, low-frequency sources.