A Question about GWX 3.0 Radio Messages

[ReallyDedPoet]

I think the below states it fairly well, found it when searching on Google.

A six figure grid references is a reference method used to pin point a location within a square. It is composed of the x-axis (also called the easting or the distance along the map) and the y-axis (northing or the distance up the map). When locating a place on a map using this method, you will have 6 numbers e.g. 216 322 (216 being the easting and 322 being the northing).

I think the reference to pin-point a location is key, some of our real navigation experts at SUBSIM should be able to tell you more

Welcome to SUBSIM by the way