Here in SE Texas on the Gulf of Mexico the soil here is this black, useless clay that we call "Gumbo".. When it dries out it's like black concrete and it's impossible to dig through it without power tools.
We have been having pretty severe drought issues for several years and when the ground dries out it cracks open, some cracks so big you can break your ankle if you don't watch out, it's a really hazard for my dog too.
After more than a month of no rain at all I started to lose my HD signal on my Dish Network tuner and my FTA channels started dropping in and out too. I went outside and shook the dishes, they were really, really loose and leaning.
So I got a soaker hose and a timer so that every six hours my satellite dishes get watered for 30 minutes. The ground soaked up the water and it swelled back to where the dishes are not as loose. I got my signals back.
But what it's going to really take is pulling the poles up and replacing them with poles much more sturdy and longer so I can put them at least 4 feet in the ground. My C-band dishes are 4 feet deep and rock solid.
I think all my ku dishes are at the most, 2 feet deep. This has been an on going problem for me from day one. Back when I first tried to get Whitesprings on 129 it gave me grief because of the drought. By the time I finally figured it out and fixed it, they went dark.
So if you plant them deep enough you shouldn't ever have to adjust them.. It really matters..