Question

The function of an amplitude limiter in an FM-receiver is to 
1. eliminated any change in amplitude of receiver FM signal 
2. reduce the amplitude of the signal to suit IF amplifier 
3. amplify low frequency signals 
4. none of these.

Answer 1

Correct Answer - Option 1 : eliminated any change in amplitude of receiver FM signal 

• Amplitude limiter is a device used to keep the amplitude of the signal in the FM receiver at a constant value.
• In FM the message signal is modulated in the form of the frequency of carrier signal so if the amplitude is varied due to noise or interference in the channel it is corrected using limiter circuit and the signal is sent for demodulation.