For Advanced Television Systems Committee we have a term and definition in Television.

See ATSC
AFC (Automatic Frequency Control )-- Circuitry in a tuner that compensates for drift in the tuning characteristics of a tuner (perhaps due to heat) or even compensates for drift in the frequency transmitted by a station, thus keeping the station tuned in correctly. Typically AGC identifies a particular frequency transmitted by a station specifically for AGC purposes and locks the receiving circuits onto that frequency.
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