Posted on March 7, 2013 by KVMG-CMS   |  0 comments

Impedance is a measure of how much a component or wire resists the flow of current through it. It is calculated by adding together the electrical properties of resistance and reactance. Because impedance affects the flow of current, it is important for a cable to maintain a constant impedance from one end to the other. Because impedance is a derivative of resistance, it is measured in Ohms.