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From GHN

The magnitude of a waveform, topics include those related to amplification and attenuation

Subcategories

• Broadband amplifiers - amplifiers that exhibit an essentially flat response over a wide range of frequencies
• Cavity resonators
• Differential amplifiers - electronic devices that amplify the difference between two voltages but do not amplify the particular voltages
• Fading - fluctuation in the strength of signals due to variations in the propagation medium
• Limiting
• Operational amplifiers - also known as op-amps, high gain, differential amplifiers
• Optical attenuators - electronic devices used to reduce the power level of an optical signal, either in free space or in an optical fiber
• Power amplifiers - amplifiers that increase the amount of energy in a signal high enough to drive a speaker
• Preamplifiers - electronic devices that transmit weak signals to power amplifiers for further amplification
• Pulse amplifiers - used in pyrotechnic tools, laser drivers, medical equipment, and other test and measurement instruments, amplifiers that supply devices with a large quantity of power or wide range of power
• Radiofrequency amplifiers - amplifiers that amplify the high-frequency signals commonly used in radio communications