Labels:text | font | screenshot | menu | number | document OCR: FREQUENCY MODULATION In this type of modulation, SOUND SIGNAL the frequency of the carrier signal is changed so that it varies at the same rate as the voltage of the sound signal. HIGH VOLTAGE LOW VOLTAGE (COMPRESSION (RAREFACTION Where there is a high IN SOUND WAVE) IN SOUND WAVE) voltage in the sound signal, there is a high frequency in CARRIER SIGNAL the modulated signal. FM radio stations suffer less from interference, but have to transmit very high frequency (VHF) waves. MODULATED SIGNAL This is because the carrier signal must have a very much higher frequency than the sound signal. .HIGH LOW FREQUENCY FREQUENCY
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