Grumpy_Mike:
because the cat cable is twisted and it prevents to loss signal, so it amplifies,
Are you saying that a passive cable amplifies a signal so you get more voltage out than you put in all because the wires are twisted together?
Maybe his hand-held multimeter is rapidly losing battery power so reading keeps climbing 
Just joking. I don't think there will be increase of voltage from passing DC voltage down a twisted pair, why did Edison not think of that if the passive wire did amplify? He was beat by the problem of DC.