I use a 3/4-inch plywood base, maybe 36" square or thereabouts (it fits in one of my trailer's storage ports).
To this base, I installed bolts with wingnuts that fit the legs of my foldable Wineguard(?) satellite antenna I bought from Camping World a few years ago.
To set up for TV viewing, I place the plywood base on the ground, install the antenna on the plywood base via the bolts, and aim the antenna. When it's dialed-in, I'm usually set for the stay. If the wind is blowing really hard, I use four metal tent stakes through four corner holes in the plywood base to assure it all stays in place.
Being as close to the ground as possible, the antenna is usually not bothered by wind in any meaningful way. About the only thing that bothers it is the errant dog looking for a fire hydrant.