DTM Series can save measuring data in the memory. It includes file of measuring data and coordinate data in the memory.
Measuring data:Collected data(station, backsight, etc)to save it in the file of measuring data. Coordinate data:It only saves collected points to file of measuring data.
Number of station point:(In the precondition of the mode of S.O. Unused)It can reach 15000points maximum. The memory includes mode of data collection and S.O., so that number of station stored decreases when you use the mode of S.O.