The property has the house centrally located, but there's a garage to the north, 3 barns, including one made of steel & one with a steel roof, underground electrical wires buried to power a shed, a chicken coop, a corn dryer made entirely out of steel, etc. I don't know how all those structures would affect the radio signals for a wireless system but we'd want the dog to have complete run of the property, minus about a 10 foot buffer zone around the perimeter. Another potential problem is that we have plans to shallow out the grade for the ditch out front because it's impossible to mow with a ZTR mower with just caster wheels on the front. And then there's the driveway that I occasionally need to run an 11,500 lb steer axle over. Not sure how to keep a buried wire shallow enough to work, while also protecting it from damage by the heavy truck tires.