The Maidenhead grid locator system is used worldwide by over 500,000
amateur radio operators in their daily activities to describe their location.
This grid system divides the earth's surface into 324
"fields" of 20 degrees of longitude times 10 degrees of
latitude - identified by two letters (AA-RR).
is divided into 100 "squares" of 2 degrees of longitude
times 1 degree of latitude - identified by two digits (00-99).
Each square is finally divided into 576 "subsquares" of
5 minutes of longitude times 2.5 minutes of latitude -
identified by two letters (AA-XX).
you would like to know your location by this method, there is a
site in the
UK that will calculate it for you. (Know the Lat and Long of your site first)