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5. Summary

The Global Positioning System (GPS) is fast becoming the preferred tool of most surveyors, but the TSI is still the best instrument in many situations. It is relatively inexpensive, durable, and flexible, able to perform many functions other instruments cannot.

In any measurement science, appropriate instruments and proper procedures are critical for efficient accuracy. Any tool correctly used is very effective, using the wrong tool or the right tool the wrong way will yield poor results. TSI measurement procedures incorporate reversion principles where possible to minimize instrumental errors. The reasons why may not always be apparent in procedure descriptions. For a better understanding the reader should read through Topic XV Chapter G. Theodolite and Total Station. Links to this chapter will be included in procedure explanations where applicable.

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