A system for switching radio frequency signals from an input side (5, FIG. 1 ) to an output side (6) can be used to combine multiple input signals to form a single output and to distribute a single input signal to form multiple outputs. Gain correction amplifiers (20, 25) are employed to adjust the overall...http://www.google.ca/patents/US6295282?utm_source=gb-gplus-sharePatent US6295282 - Calibrated low loss radio frequency switch matrix
