Comparison of the accurancy of autobase and no autobase RTK observations.
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There are different GPS positioning techniques that are currently being used by Sur. eyor one of which is the Auto base and No Auto Base Technique that are embedded in the GPS machines. The CHC GPS machine has a capability of site calibration not common to all other GPS machines like Leica, so instead of setting up a GPS on a control, it can be set up anyw here without even centering itand a reading made on the control and site calibration is carried out. The general objective of the study was to compare the accuracy of Auto Base and no Auto Base RTK positioning techniques. The specific objectives included; fixing points using Auto base and No Auto base RTK techniques, to evaluate the accuracy of the Auto base RTK technique. The researcher collected data from 20 carefully selected points within in Mukono District. Data was collected using GPS CHC equipment. The researcher therefore concluded that there are 20 points that were successfully fixed by both techniques. The mean and standard deviations of the change in Eastings, Northings, Heights and the Linear shift were also determined making the accuracy evaluation of the autobase RTK technique a success. These were illustrated in the table showing a summary of the analysis.