Automatic gain control stress measurement for digital carriers

摘要

The testing equipment of the present invention calculates a single "AGC stress" value, which provides an indication of the stability of the level of a digital carrier based on the change in gain required to stabilize the power of an incoming cable signal over time. Ideally the AGC stress value is rated on a scale, e.g. 1 to 10 or 0 to 5, and is fed into the DQI measurement system as a new data model.