Freequency Modulation

FREQUENCY MODULATION

The Blocks required for frequency modulation are:
1.Sine wave Block

2. Frequency Modulation Block

3. Sampling Scope

Connect the blocks as shown in the diagram below

Block Diagram

The parameters for the Modulator along with freequency values and other necessary settings are shown in the diagram below

Modulator properties

The source parameters including frequency of the input sine wave are shown in the picture below

Source block parameters

The output waveform appears in the CRO as:

Modulated waveform

For demodulation connect a FM demodulator block in between the FM modulator block and the sampling scope and connect them as shown in the diagram below.

Demodulator block diagram

With the settings of the source and modulator blocks remaining the same adjust the demodulator to the necessary frequency and other parameters as necessary and as shown in the picture below:

FM Demodulator properties

The Demodulated output appears in the CRO as thus:

Demodulatoed Waveform