My TV has a feature in the control menu to tell you what the signal strength is and what is the maximum for the area your in. Turning the antenna while watching the signal strength raises or lowers the signal (Red-Yellow-Green) to the maximum. Some location I have been at will not get anything above yellow. Those areas usually won't have good cell or hotspot coverage either Hope you carry DVDs with you. I do.
Don & Dona W/yorkies Gizmo, Master Chief, & Tali
2011 Flagstaff 8528 BHSS 2015 Ford 6.7 XLT
2010 Full Timers & Still Going