TAG: base station

CompassTools Installs Base Station for GPS Correction in Four Corners Region

February 25, 2014By

CompassTools Inc., a distributor of mapping and GIS products for field data collection, has installed a GPS reference station in Durango, Colorado, to provide freely available differential correction data to GPS users in the Four Corners area of Colorado, New Mexico, Utah and Arizona. The correction data can significantly enhance the accuracy of location coordinates captured by GPS receivers used... read more

This article is tagged with , , , and posted in GIS News, GNSS/GPS, Mapping

Part 2: Nightmare on GIS Street – Accuracy, Datums, and Geospatial Data

May 23, 2013By

This is Part 2 of the discussion I started in March with this article.  It frames this discussion. I ended Part 1 of this discussion with a statement from Michael Dennis of the U.S. National Geodetic Survey. He said while people understand that the 14-parameter transformation algorithm is important in transformations between horizontal datums, the step people are leaving out is... read more

This article is tagged with , , , and posted in GSS Monthly