Contour map preparation using DGPS (Part-1)

Differential Global Positioning System (DGPS) is a high level accuracy equipment used in preparing a contour map. The survey points are saved in internal memory and can be extracted into any windows based PC with the software provided by the FOIF company. To see my earlier videos you can subscribe my channel or click on any specific link. Some of my previous videos are mentioned below with their links. 1) Introduction to Transit Theodolite -    • Introduction to Transit Theodolite   2) Setting of Simple Circular Curve -    • Setting of Simple Circular Curve   3) Setting of Compound Curve -    • Setting of Compound Curve   4) Cadastral Survey -    • Cadastral Survey