Howtosignalprocessing
The sidebands, as hotpaw2 explains, are where the actual information is, and their width is proportional to the maximum amount of information the channel can carry.
- Why does amplitude modulation have sidebands?
- What are sidebands in AM?
- Why do the sidebands appear?
- How many sidebands are there in AM?
Why does amplitude modulation have sidebands?
Amplitude modulation sidebands
When a carrier is modulated in any way, further signals are created either side of the steady carrier. These sidebands carry the actual modulation information. The amplitude modulation sidebands are generated above and below the main carrier.
What are sidebands in AM?
Sideband. SIDEBAND. A FREQUENCY component in a SPECTRUM produced by a MODULATION of the original SIGNAL. In the case of amplitude and frequency modulation, sidebands occur in pairs on either side of the CARRIER frequency at a distance equal to the modulating frequency.
Why do the sidebands appear?
The result of one signal or waveform being modulated by another (or others). When a signal is either frequency modulated (FM) or amplitude modulated (AM) by another signal sum and difference frequencies are produced that appear with the signal. These are known as sidebands.
How many sidebands are there in AM?
In the process of Amplitude Modulation or Phase Modulation, the modulated wave consists of the carrier wave and two sidebands.
