[JRTJH]

Before replacing the antenna, double check the cable connections on the antenna head, the base plate (where it enters the trailer roof) and on the splitters/boost amplifier. A loose connection or a center pin that is cut too short will cause you to have cable but not OTA TV. If all of the connections appear to be tight and properly cut, then this is what I do during trailer setup:

When we get to a "new, never been there campground" and cable isn't available, the first thing I do is compare where other campers have aimed their antennas. I start with the general direction of the majority of other campers. Then, I can "fine tune" from there if I do need to do some additional "antenna pointing"....

The main thing I think you need to do at this point, before spending money on a different antenna is to ask other campers in the area if they have TV reception. We go to a number of "dry campgrounds" that are simply too far from civilization to have any TV reception. In fact, we go to a couple where there's no radio reception during the day and limited reception at night and no cell service as well.

So, you might want to compare your reception to that of people around you.