AGC (automatic gain control) amplifiers are frequently used devices. Their gain is a function of the level of their input signal. The main function of AGC amplifiers is compression of a signal, but ...
Fig 1. Two analog multipliers form a VCO with quadrature outputs, while a third multiplier provides AGC to stabilize output voltages without adding distortion. Fig 2. The oscilloscope trace of the VCO ...
Upstream fiber links in a community antenna television (CATV) system are usually among the most difficult elements of the network to align properly. Set-top boxes and cable modems employ "long-loop" ...
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