Originally Posted by NVhntr
One of these might be an option. A buddy was using one of the ELF antennas on his iPad on a deer hunt a few years back and it seemed to work pretty well.

External GPS antennas


I use an IPad flying small planes as does my buddy. We both use the Bad Elf GPS Pro as the GOS receiver to geed our IPads. Flew across the US and back with it and never lost lock.