My TV aerial is in the attic space, and it works very well (although I do have a line of sight to the transmitter). The cable runs down the wall. I wonder if a

My TV aerial is in the attic space, and it works very well (although I do have a line of sight to the transmitter). The cable runs down the wall. I wonder if a 4G aerial would work as well in this kind of environment? The roof is wooden rafters with a slate covering.