GPS Configuration in GPS technology and devices Posted December 20, 2006 I am new to the GeoCaching World, but have done alot of GPS navigating finding caves and such in New Brunswick. My questions is how exactly MY GPS should be configured! I have tried several Position formats; Map Datum NAD27, NAD 83, & WGS 84; North Reg as Magnetic but still I am about 12km off the grids that are given in GEOCACHING.COM! I have gone to one of the sites and tested my GPS by a return trip to my start location and it is working properly, but I am still not able to find a cache at this point in time! Please assist me soonest as I am ready, willing and able to begin!! Thanks WGS84 (unless otherwise stated on the cache page, but datums other than WGS84 are very rare.) North as true or magnetic won't affect your ability to find a waypoint. Also, make sure you are using the correct units (lat/lon hddd mm.mmm) and not decimal format.