Question

The frequency of an FM transmitter without signal input is:

• A. The frequency of operation
• B. The carrier frequency
• C. The modulated frequency
• D. None of the above

Hint:

The carrier frequency remains constant in an FM transmitter until it is modulated by an input signal.

Answer 1

The Correct Option is B

Step 1: Understanding the FM transmitter operation. An FM transmitter typically operates at a fixed carrier frequency, which is modulated by the input signal. Without an input signal, the carrier frequency remains constant.
Step 2: Conclusion. Thus, the frequency of operation when there is no input signal is the carrier frequency.