Frequency Modulation and Demodulation Simulator

frequency and amplitude of modulating signal

Frequency:

Hz

Amplitute:

V

frequency and amplitude of carrier signal

Frequency:

Hz

Amplitute:

V

Choose frequency sensitivity

x axis in time(ms)
y axis in amplitude(V)

Frequency Sensitivity Report

Overall report

Choose any one

NBFM WBFM

Formative assessment

1. Which type of FM is termed as AM?

A) WBFM

B) Direct FM

C) NBFM

D) Indirect FM

Formative assessment

2. Calculate the bandwidth of WBFM for the modulation index value of 2 and the modulating signal frequency of 100Hz

A) 600 Hz

B) 1200Hz

C) 300 Hz

D) 150 Hz

Formative assessment

3. Find the frequency of FM signal when the modulating signal has zero amplitude.

A) Modulating frequency

B) Infinite

C) Zero

D) Carrier frequency

Formative assessment

4. Define FM.

A) Amplitude of the carrier signal is varied with respect to modulating signal.

B) Frequency of the carrier signal is varied with respect to modulating signal.

C) Phase of the carrier signal is varied with respect to modulating signal.

D) Amplitude and phase of the carrier is varied with respect to modulating signal.

Formative assessment

5. Arrange the blocks used at the demodulator to reconstruct the modulating signal from FM wave.

A) Differentiator & Envelope detector

B) Differentiator &Integrator

C) Integrator & Envelope detector

D) Integrator & Differentiator

Formative assessment

6. How do you choose the amplitude and frequency of the carrier signal with respect to modulating signal?

A)Less than the modulating signal

B) Half of modulating signal

C) Equal to the modulating signal

D) Greater than modulating signal

Formative assessment result

We Acknowledge NITK and PALS for extending their support towards successful completion of this experiment