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Topcon GPS keeps on error

ladyfingers

Member
Joined
May 8, 2025
Messages
5
City & State/Province
Oklahoma
I'm out here in the field, trying to set up this Topcon GPS rover and base station for the first time.

We're working on a site where we used an old Topcon total station before, and "Jm9" was one of our setup points back then.

Now, every single time I try to do a resection with the GPS rover, using Jm9 as one of the points I'm measuring to, I keep getting this error. It's driving me nuts!

Since Jm9 was an occupied point for the total station, maybe there's something weird about how its coordinates are stored or how the GPS is trying to use it.

Has anyone run into this kind of issue before when mixing old total station data with a new GPS setup? How to fix this?
 
The error probably is from mixing local coordinates (from the old total station) while youre GPS expecting global ones. Try double checking the datum and coordinate system, Jm9 might just need a little translation to join the 21st century. Lol.
 
Yeah, mixing old total station points with GPS can cause coordinate system conflicts but make sure your GPS setup matches the exact datum and coordinate system used before, sometimes re-entering points fresh fixes it
 
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