Science > Physics > Communication > Amplitude Modulation The first amplitude modulated signal was transmitted in 1901 by a Canadian engineer named Reginald Fessenden. He used a continuous spark transmission and placed a carbon microphone in the antenna lead. This transmission was very crude, signals were audible over a distance of a few hundred metres. The […]
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Amplitude Modulation
- Post author By Hemant More
- Post date November 16, 2019
- 1 Comment on Amplitude Modulation
- Tags Aerial, Air Band radio, Amplitude modulation, Antenna, Broadcast transmission, Carrier waves, Continuous wave, Demodulation, Frequency modulation, Modulation, Modulation factor, Modulation index, Need of modulation, Operating range, Phase modulation, Power radiated by antenna, Pulse, Pulse amplitude modulation, Pulse duration modulation, Pulse position modulation, Quadrature amplitude modulation, Single side band, Sinusoidal wave, Size of antenna, Transmitter, Wireless communication