Instructions for Amplitude Modulation (AM)

Note: Use the sliders to input the message frequency, carrier frequency, message amplitude, and carrier amplitude.
Step 1: Click on the "Generate Message" button to create the input message signal based on the selected frequency and amplitude.
Step 2: Click on the "Generate Carrier" button to generate the carrier signal. The carrier frequency must be higher than the message frequency. You can adjust both using the sliders.
Step 3: Click on the "Generate Amplitude Modulated Signal" button to produce the AM signal.
Step 4: Click the "Show Frequency Spectrums" button to visualize the frequency spectrum of the AM signal.
Tip: The modulation index is defined as the ratio of message amplitude to carrier amplitude. Adjust them with the sliders to see its effect.

50Hz

Step 1:

500Hz

Step 2:

Message Signal Amplitude

Carrier Signal Amplitude

Step 3:

Step 4:

Instructions for Amplitude Demodulation

Step 1: Tunable LPF's Cutoff frequency works in accordance with the Message frequency
Step 2: You can Demodulate the AM Signal clicking on the 'Perform AM Demodulation' button
Step 3: Click on the 'Show Frequency Spectrums' button above to see spectrums of the message, AM modulated and demodulated signal. The frequency spectra is shown for a modulation index of 1.

Cut-off Frequency