The frequency of local oscillator ________(a) can be either below or above the RF frequency(b) is below the RF frequency(c) is above the RF frequency(d) is fixed typically at 450KHzI have been asked this question by my school teacher while I was bunking the class.My question comes from Bandwidth of FM Signal with Arbitrary m(t) in chapter Angle Modulation of Analog Communications

The frequency of local oscillator ________(a) can be either below or a

1.	The frequency of local oscillator ________(a) can be either below or above the RF frequency(b) is below the RF frequency(c) is above the RF frequency(d) is fixed typically at 450KHzI have been asked this question by my school teacher while I was bunking the class.My question comes from Bandwidth of FM Signal with Arbitrary m(t) in chapter Angle Modulation of Analog Communications
Answer» The correct ANSWER is (C) is above the RF frequency Explanation: The frequency of the local OSCILLATOR is not fixed. It is mostly above the RF frequency.

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