RG99 Maidenhead Grid Square


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Latitude, longitude, and maindenhead grid square.


View, convert, and distance your location's latitude and longitude to the maidenhead grid locator system for amatuer radio. Also, latitude and longitude for great circle path and distance. The Maidenhead Grid Locator system (also QTH) is a geographic co-ordinate system used by amateur radio operators to succinctly describe their location. The system can describe any location in the world. Latitudes and longitude can be coverted to and from the grid system. This system replaces the QRA locator system since it was only used in Europe. Other names for the grid locator are: grid squares, QTH, or grid location.



Links to popular grid square locations:



Maidenhead Grid Square
RG99aa
RG99ab
RG99ac
RG99ad
RG99ae
RG99af
RG99ag
RG99ah
RG99ai
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RG99ak
RG99al
RG99am
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RG99xn
RG99xo
RG99xp
RG99xq
RG99xr
RG99xs
RG99xt
RG99xu
RG99xv
RG99xw
RG99xx


Grid Square Locator

Enter your zip-code, city, latitude, or longitude to find your maidenhead grid square on the Google or Bing map. The largest square, two digits field encoding, e.g. CN, is 10° latitude by 20° longitude in size.

Grid Square Calculator

The grid square, two digits field and two digits square, e.g. CN87, is 1° latitude by 2° longitude in size.

Find Grid Square

The next smaller grid sub-square, with 6 digits, e.g. CN87AA, is 0.041667° latitude and 0.083334° longitude in size.



Grid valid. RG99
IPs returned: 54.85.162.213, 69.161.209.17 >>>