In FreeScan's GPS range setting, if I set a range of 10 miles does it mean a 10 mile radius (20 Mile diameter) of the site or a 5 mile radius (10 mile diameter) of the site? On the map from FreeScan's GPS system plotter it looks like a 10 mile diameter but my scanner picks up 4 nearby sites that should not be picking up according to the map. I'm using a 996XT with a Garmin GPS antenna. Just curious.