Category: Feature


Eimbeck’s Duplex Bars

A critical aspect of a triangulation network was to establish a baseline that was accurately measured upon the ground. During the late 1800’s,…


U.S. Location Monuments

The growth of nearly every civilization can be linked to the discovery, development, and application of its precious metals and natural resources. Since…


Trimble Dimensions

Nearly twenty-five years ago I had a Trimble 4000 on my back and a compact L1/L2 antenna with a ground plane on a…