Originally Posted by
Dave Gittins
I have had a staggering lack of success with an iPad GPS on a 787. Assume it's because there are no window blinds and the glass has something in it to allow its light transmittance to be varied that not only blocks light but also blocks GPS signals.
I would agree. It is far harder to get a cell phone signal (which use frequencies similar to GPS) inside a 787 (while waiting at the gate) than on any other plane. I assume it is because of the electroluminescent windows.