Rob
Well-known member
As part of the Castleton Caves Survex Project we are resurveying Giants, a project that will take many trips. Each trip we are re-calibrating the DistoX, and we are also taking a test shot near the entrance after each trip.
Each trip gives us one .svx file, to which we are applying a *calibration value taken from http://www.ngdc.noaa.gov/geomag-web/ to allow for the magnetic deviation.
We are getting (small) variations in the test shot each time. Should we adjust the *calibration values of each trip to make these test shots all the same?
Each trip gives us one .svx file, to which we are applying a *calibration value taken from http://www.ngdc.noaa.gov/geomag-web/ to allow for the magnetic deviation.
We are getting (small) variations in the test shot each time. Should we adjust the *calibration values of each trip to make these test shots all the same?