Try it like 50ft or 100ft apart. My experience with my sponsor's setup is it basically doesn't work under 25ft or so; it'll do stupid things like tell you your tx is 60ft on your left when it's on your bird on your fist. Distance between the iPad / pocket link and the tx seems to fix that problem; the only time I've seen it wrong at distance is when the bird hit a fence and tore the tx off its leg (no significant injuries), and then it wasn't so much wrong as much as my sponsor just didn't look up to see the bird wasn't where the iPad said it was.

Also, you're the guy I talked to about the test in Lubbock, right?