Just a weak jest, FF, referring to the ground location of the pink nuttiness that afflicted this forum for a while, but is now fading thankfully into memory and myth.
I wonder if any peculiarity of topography could account for the signal difficulties, but assume not, as the satellites are, derr, above the Earth. I know very little about how GPS really works, but quite a few people here know a lot about this stuff and may be along in a while to offer more informed suggestions.