Surveying is the the determination of relative position above, on and below the earth surface. There's no aspect of construction that can be completed without the application of a branch or technique of surveying. Today, as a surveying team, we went out to gather some data using the differential GPS..
What's DGPS as how does it work?
IMG_20180213_120520-1.jpg!
image source:https://racelogic.support
This are the photos my observation today