The QTH Locator App was developed for HAM Radio use. This is the extended version of "Maidenhead Grid Locator" using Google Maps to show and calculate source and destination locator. Using GPS, network location if GPS is not available !! ACTIVATE Network location !! Setup-> Activate location & security ->use wireless networks Functions: * determine the Maidenhead Grid Locator. infos: Lat/Lon, address, GPS accuracy, * input locator or address of destination * calculating locator, direction and distance to destination. * compass to destination * using Maps to show the own and the destination location. * touchscreen and keybord navigation ( use menue ).