HamDx

A utility for working with the QTH Maidenhead grid system

Convertor class

convert QTH locator to Lat/Lon
convert Lat/Lon to QTH locator
convert Lat/Lon to DMS (Degrees, Minutes, Seconds)
convert DMS to Lat/Lon

Comparator class

calculate distance between two Lat/Lon points (in km)
calculate azimuth