CAT-D04DOM-01 · Drone components
GNSS & RTK modules
Positioning accuracy under interference, not under open sky.
Every module quotes accuracy under conditions your aircraft will not see. The useful questions are convergence time, behaviour under multipath, and what happens to the control loop when correction is lost.
Parameter set
01Deciding parameters
The figures that actually decide selection — and why.
Constellations
—
Multi-band multi-constellation drives real fix quality.
RTK convergence
s
Time to fix matters more than steady-state accuracy.
Update rate
Hz
Must match the control loop it feeds.
Interference resilience
—
Where the difference between modules actually shows.
02Where it is used
Application changes the answer.
- Survey and mapping — absolute accuracy and repeatability
- Autonomous navigation — fix stability through the mission
- Precision agriculture — line-following accuracy across passes
- Urban and near-structure flight — multipath resilience
03Decision drivers
What the choice actually turns on.
- Accuracy under interference, not the open-sky headline figure
- Convergence and re-convergence time after signal loss
- Correction source, cost, and coverage in the operating region
- Antenna requirement and integration constraints
04What we hold
The intelligence behind this category.
Chipset behind each branded module, and which are shared
Accuracy variation across chipsets under comparable tests
Correction service dependency and its recurring cost
Firmware maturity and update cadence
05What to watch for
Where selection in this category turns.
Comparing open-sky accuracy figures across differing test conditions
Ignoring antenna and ground-plane requirements
Treating RTK as a hardware decision rather than a service dependency
No defined behaviour for correction loss
Beyond this page
SKU-level intelligence sits behind the requirement.
Validated supplier records, per-SKU parameter data, pricing bands, MOQ patterns, and lead-time history for gnss & rtk modules are released against a stated application — because a shortlist is only meaningful once the operating conditions are known.
06Coupled decisions in drone components
Motor · ESC · propeller · pack are selected as one set. Selecting any one of these without the others is the most common source of rework in this domain.
Start with the application
Sourcing gnss & rtk modules?
Send the application and the operating conditions. We map the landscape, validate the claims, and return a shortlist with the reason each option is on it.