Calculate modulation index and power distribution for Amplitude Modulation (AM).
AM Parameters
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Calculation Results
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About this calculator
Overview
Modulation is the process of varying a carrier signal to transmit information. In Amplitude Modulation (AM), the amplitude of the carrier wave is varied in proportion to that of the message signal.
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Pro Tips
Keep the modulation index (m) under 1 (100%) to avoid signal distortion (overmodulation).
The carrier power carries no information; all information is in the sidebands.
A modulation index of 0 means no message is being transmitted.
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Fun Facts
"AM radio was the first method used for transmitting audio over radio waves."
"Digital modulation (like QAM) is used in modern Wi-Fi and 5G networks."
"SSB (Single Sideband) modulation is a more power-efficient version of AM."
