What RTK networks actually buy you in the field

Uncorrected GNSS puts you within a few meters of the truth, which is fine for finding a manhole and useless for setting one. Real-time kinematic corrections shrink that to centimeters by comparing the rover's signal against reference stations with precisely known positions, and a network of those stations means the crew never has to set up a local base.

The payoff shows up as absent rework. Utility locates that land on the correct side of the trench, as-builts that overlay design files without a manual shift, stakeout that machines can follow without an operator second-guessing it. One avoided re-mobilization typically covers a season of network subscription fees.

The honest caveat: RTK does not fix a bad datum, and centimeter hardware cannot rescue a workflow that mixes coordinate systems. Before buying accuracy, standardize the reference frame every crew and contractor delivers in. That decision is free and it is worth more than the receiver upgrade.