Thanks everyone for the info. The house we moved into, wiring wise, is not ideal. At least not near as good as our old house in another state where I was able to run coax thru the walls and attic into each room for another OTA run. That side of the house doesn't have any windows near it, other than the sliding glass doors 10 ft away. The flat coax jumper or F81 coupler might be the best options at this point.