Subject :
Distance Measuring Instruments, Electronic+Distances- Measurement+Geodesy-Instruments+Physical Laws and Units Related to EDM+Basic Working Principles of Electronic Distance Meters+ProPagation of Electromagnetic Waves Through the Atmosphere+Velocity Corrections to Measured Distances+Geometrical Corrections+Electro-Optical Distance Meters+Reflectors+Batteries and other Power Sources+Calibration of Electro-Optical Distance Meters
