A. Global Navigation Satellite Systems (GNSS) Equipment Global Navigation Satellite Systems provide highly accurate position, velocity, and time information from a constellation of satellites orbiting the Earth and a method of receiving real-time kinetic (RTK) position corrections that may include a base station or broadcast network of correction data. Applications of this technology are numerous and include surveying, mapping, forestry, and navigation. Includes directly related options and accessories. B. Electronic Distance Measuring Equipment, Theodolites, Engineering and Surveying Level Instruments, Planimeters Surveying equipment is used to accurately measure and record relative altitudes, angles, and distances of points on, above or below land surfaces. The data obtained from this equipment can then be used to create maps or plots of a surface. Examples of such equipment are: electronic distance measuring equipment, total stations, laser-leveling systems, theodolites and surveying levels. Includes directly related options and accessories. Examples include but are not limited to: electronic distance measuring instruments, planimeters, theodolites, total stations (surveying), engineering and surveying level instruments, and surveying laser reference instruments. C. Hydrographic Survey Equipment Hydrographic survey equipment is used to map and characterize subaqueous features for the purpose of collecting physical and compositional information. It is commonly used in combination with GPS equipment, and includes echosounder(s), signal processors, motion sensors, and other position sensors mounted to a watercraft.
