📡 Interactive Modulation Visualizer

🎯 Getting Started

This visualizer shows how different modulation schemes affect both the time-domain waveform and the frequency-domain spectrum.

• Time Domain (Top): Shows the actual modulated waveform as it changes over time
• Frequency Domain (Bottom): Shows the carrier and sideband frequencies in the spectrum

📊 Modulation Types

• AM (Amplitude Modulation): The amplitude of the carrier varies with the message signal. Watch for overmodulation when index > 1.0!
• FM (Frequency Modulation): The frequency of the carrier varies with the message signal. Higher index creates more sidebands.
• PM (Phase Modulation): The phase of the carrier varies with the message signal. Similar spectrum to FM but different time behavior.

🔧 Key Parameters

• Modulation Index: Controls the depth of modulation. Try values > 1.0 to see overmodulation effects.
• Carrier Frequency: The base frequency being modulated (shown in blue/center in frequency domain).
• Message Frequency: The information signal frequency (spacing between sidebands).

💡 What to Look For

• AM Overmodulation: When index > 1.0, the carrier crosses zero—this causes distortion!
• FM Sidebands: Higher modulation index creates more sideband pairs in the spectrum.
• Bandwidth: FM and PM use more bandwidth than AM for the same message frequency.