Question
Download Solution PDFIn commercial FM broadcasting the maximum frequency deviation is normally:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is 'option 4'
Concept:
- Frequency modulation (FM) is the process of changing the frequency of the carrier voltage in accordance with the instantaneous value of the modulating signal.
- The original frequency of the carrier signal is called resting frequency or center frequency and it is the allotted frequency of the transmitter.
- When the audio signal is applied, the carrier frequency changes, and the quantity by which the frequency of the carrier wave shifts above or below the center frequency is termed frequency deviation.
Solution:
- The nature of broadcast of the given frequency band 88 - 108 MHz is FM radio.
- Commercial FM broadcasting uses a maximum modulating frequency of 75 kHz and a minimum modulating the frequency of 15 kHz.
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