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This modulation calculator helps find the amplitude modulation index using the amplitude of the modulation signal and the carrier signal. You can also calculate the frequency modulation index.
Amplitude modulation formula and calculator. Amplitude Modulation (AM) is a modulation technique used in communication systems to transmit information by varying the amplitude of a carrier signal in accordance with the message signal (usually a lower-frequency signal).
Explore AM and FM Modulation Index formulas and use modulation index calculator to calculate modulation depth effortlessly.
Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting messages with a radio wave. In amplitude modulation, the amplitude (signal strength) of the wave is varied in proportion to that of the message signal, such as an audio signal.
You should be able to hear a note that has a frequency of \( f_1 \), that is going up and down in loudness at a rate of \( f_2 \). For example, if the value of \( f_2 \) is 1Hz, the volume should go to zero once every second.
Power Calculations of AM Wave. Consider the following equation of amplitude modulated wave. s(t) = Ac cos(2πfct) + Acμ 2 cos[2π(fc +fm) t] + Acμ 2 cos[2π(fc −fm) t] Power of AM wave is equal to the sum of powers of carrier, upper sideband, and lower sideband frequency components. Pt = Pc + PUSB +PLSB.
For a 4-FSK signal with a peak frequency deviation of 1 MHz and symbol period of 2 micro-seconds, the modulation index is 1.33. In this post we present modulation index formula and calculators for three different modulation formats: AM, FM and FSK.
