Here is the brief video regarding transferring data from trimble M3 total station to computer. It can be transferred from USB pendrive directly.
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https://www.youtube.com/channel/UCqubdaLzEXK3FpbT-R1knCQ?
Link for downloading trimble M3 total station data using pendrive.
https://www.youtube.com/watch?v=Gp83fIE1aFQ