Some years back, my neighbor tried to get DirecTV, two different installers came out and told him no way he could get a signal anywhere. Their yard is heavily "wooded" with a trailer house tucked between trees.
I was able to set-up a 18" dish on the side of their porch that got a perfect signal. No climbing, no cutting down trees, just screw the dish mount to the side of the porch......
When I was upgraded to a SL5 dish, mounted on an EXISTING steel pipe in my yard that I had been using for years, the installer wondered how I had been getting a signal
Some of the installers, ( Directv and Dishnet ) I've run across over the years have really baffled me, no offense to the installers here