For Amateur Radio operators who often travel to unknown places. Forgot to check GL reference? Do not worry. If you have iPhone and GPS is working then you can check your location's GL reference very easily. You do not need internet connection. Ideal if you go to mobile or portable operation often and not sure where GL boundaries are.
||Compatible with: iphone4, iphone4, ipad23g, ipad23g, iphone4s, iphone4s, ipadthirdgen4g, ipadthirdgen4g, iphone5, iphone5, ipadfourthgen4g, ipadfourthgen4g, ipadmini4g, ipadmini4g