I have a ClearVue Mini-Dish Antenna for $13 from JD Marvels. It's a TV signal booster that uses the house wiring as a giant antenna. It has one Ant input coax jack and two TV output coax jacks. Can there be a shock hazard when the AC/CAB switch is in AC mode? Does the AC mode of the AC/CAB switch connect a small RF bypass capacitor between the TV coax and the AC line? There is also an internal step-down transformer for the signal booster.