Why we withhold 30% of the ground marks
Testing a map against the same marks that built it proves very little. We keep part of the network aside purely to…
Read noteField Journal
Working notes on control networks, trajectory processing and the arithmetic behind the numbers we publish.
Reading a checkpoint residual table without kidding yourself
The headline accuracy figure is one number summarising many. Reading the whole table tells you far more about whether a survey can…
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PPK or RTK: what actually changes in the numbers
Two ways to position the same flight. The difference shows up when the terrain gets difficult — and in how much you…
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Send us the site boundary. We will send back a flight plan.
Share an area of interest, the accuracy you need and the format your engineers work in. You get a mission plan, a control scheme, a fixed price and a delivery date — usually within one working day.