To obtain one's geoidal height, a raw GPS reading must be corrected.

Some inaccurate GPS readings are due to using civilian GPS instead of military GPS.

GPS readings counted 142 miles with a rum-line distance of 112.

GPS readings on some summits have consistently suggested higher elevations than those given on the maps.

Rupert Gerritsen took photographs and GPS readings and conducted a metal detection search.

Murdock took several GPS readings at the grave site, and everyone recorded the coordinates on their maps in case there was ever an opportunity to recover the body.

In February 2006 a GPS reading of 1,064 metres was recorded on this summit by English adventurer Ginge Fullen.

I wonder what Botham and one or two others GPS readings would have been had they been available in the 70s and 80s.

It was climbed in November 2004 by English explorer Ginge Fullen, who recorded a GPS reading of 3,628 meters at the coordinates in the table to the right.

Stopping a little more than a mile short of the objective, David McCarter took a final GPS reading of their location and checked it against the reading from the satellite.