(a)[2]
Explain what FM (frequency modulation) means.
(b)[4]
State two advantages and two disadvantages of FM transmissions in comparison with AM transmissions.
Physics 9702 · AS & A Level · Characteristics of alternating currents
Characteristics of alternating currents — practice question
Many radio stations are now transmitted on FM instead of AM. In general, FM uses much higher frequencies for broadcasting than AM.
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