Our old camper had no antenna so I added a cable port and installed a digital TV, extra receiver we weren't using in the house (Dish 211k) and replaced the old Weingard carryout that required power and cable with a Tailgater that only requires the cable and it works great for us as we have a Gen for boondocks and use camp power otherwise. Our camper doesn't have its own battery so 12v not on the radar. Whatever floats your boat. By the way. We also don't have to pay the extra bill for service for camper, just the standard receiver cost on our house bill. Always thought it was a rip off to have to pay for a receiver in the camper when away from home and not using service there but still paying for it.