Icyiciro Modulator ni umuzunguruko aho icyiciro cyabatwara bugenzurwa nibimenyetso bya modulating. Hariho ubwoko bubiri bwibiciro byimpapuro: Icyiciro cya Phedulation cya modulation hamwe nibikoresho bitaziguye. Ihame ryo guhindura icyiciro cyagenwe nugukoresha ibimenyetso bya modulating kugirango uhindure ibipimo byumvikana byumvikana, kugirango abatwara ibimenyetso bivuye mu giciro cyo guhinduranya icyiciro kandi bukora igiciro cyihariye; Uburyo bwihariye bwimyitozo bwambere bwa mbere amplitude yaguteguye, hanyuma agahindura impinduka amplitude mugice impinduka, kugirango ugere ku moko. Ubu buryo bwakozwe na Armstrong mu 1933, bwitwa uburyo bwa modulation ya Armstst
Icyiciro cya elegict cyagenzuwe kuri etal Ingano yicyiciro cyicyiciro irashobora gutandukana ubudahwema hamwe nikimenyetso cyo kugenzura cyangwa mugihe cyagenwe cyagenwe. Bitwa icyiciro cya Analogi birahindagurika hamwe nicyiciro cya digitale zihindagurika. Icyiciro Modulator nigikoresho cya modulator yicyiciro cya modulator muri sisitemu yimiterere ya microwave, ikoresha imiraba karemano yo guhinduranya ibimenyetso bitwara. Imyigaragambyo yicyiciro cyicyiciro irashobora kugabanamo icyiciro cya Phedulation no guhinduranya itaziguye. Ukoresheje isano ko imibanire ya Amplitution Amplitude nibyinshi byintangarugero ako kanya, inshuro ntarengwa zirashobora guhinduka mugice cya moducation (cyangwa ubundi). Umuzungu usanzwe wakoreshejwe modulator ya modulator ni umukarake wa Diode ya modulator. Umuzunguruko utaziguye moduret uragoye kuruta umuzunguruko utaziguye. Ihame ryayo nuko inzira imwe yibimenyetso byitwara byimuriwe na 90 ° icyiciro cyicyiciro cya Amplitution-modulator kugirango ahagarike amplitude modulation ihindura abatwara. Nyuma yo kwinjiza neza, ibimenyetso byabonetse byongewe mubindi nzira yumutwara kugirango usohoke ibimenyetso bya Amplitique-Modulatide. Uyu muzunguruko urangwa numutekano munini, ariko shift yicyiciro ntishobora kuba nini cyane (muri rusange munsi ya 15 °) cyangwa kugoreka bikomeye. Icyiciro cyoroshye cya Modulator gikoreshwa kenshi muri FM Kugaragaza kwa FM.
