12V DC power supply, 75 Ohm with splitter for two TVs, and one input for cable TV. The ON/OFF switch selects the signal from the antenna or the cable TV.
Note: This TV SIGNAL BOOSTER / AMPLIFER (DA30 ) is designed for Directional Antenna / Outdoor Antenna (with NO built-in Booster) ONLY Please DO NOT BUY this TV SIGNAL BOOSTER, if you: Already own our OMNI Antenna model number ETA380 / ETA380HV, or ANY OTHER BRAND of OMNI Antennas. Already use a TV SIGNAL BOOSTER in your system. This is NOT a power supply for ETA380 / ETA380HV or ANY OTHER BRAND OMNI Antennas. If you are after a power supply for your OMNI antenna, please contact us.