roaming | WildBuckwheat - 8/8/2019 16:19
Due to the difference in athmosphere between the base station and where you are working, the accuracy will drop as the distance increases.
I was told an additional 0.1” of inaccuracy per mile.
That's about right. Accuracy technically drops by about 2ppm, or 2mm per kilometer of baseline distance. 2mm/km is about .13in/mi.
If you multiply it all out, 2mm/km = 26mm/13km. 26mm = approx 1", and 13km = 8mi, so that's where you get the typical advertised RTK accuracy of 1" at up to 8mi (95% of the time, usually). You can definitely still get signal beyond 8mi (depending on terrain, etc.), but you will no longer have "true" RTK sub-inch accuracy (or at least you're outside what the manufacturer is likely promising). |
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