RELIABLE GPS FOR FIELD MAPPING AND CONSERVATION
Yenra | Reviewed September 15, 2026
https://yenra.com/most-reliable-gps/

HOW TO USE
Complete before relying on the setup. Repeat the trial when equipment, software, service
or project requirements change. Mark each item PASS, FAIL or N/A with evidence. Record
an owner and next action for failures. This worksheet supports the linked guide; consult
exact equipment manuals and applicable trip/project requirements.

Reviewer: ____________________  Date: ____________________

PROJECT SETUP
[ ] Purpose, tolerance and responsible project lead
    Result/evidence: ______________________________________________
[ ] Receiver/app/provider, version and correction setup
    Result/evidence: ______________________________________________
[ ] Coordinate system, format, units and transformation
    Result/evidence: ______________________________________________
[ ] Required fields and export trial verified
    Result/evidence: ______________________________________________

OBSERVATION
[ ] Feature ID/type and identifiable description
    Result/evidence: ______________________________________________
[ ] Coordinates with reference and latitude/longitude order if used
    Result/evidence: ______________________________________________
[ ] Observation date/time and time-zone offset
    Result/evidence: ______________________________________________
[ ] Method, averaging and correction status
    Result/evidence: ______________________________________________
[ ] Reported uncertainty and stated confidence if available
    Result/evidence: ______________________________________________
[ ] Canopy/obstructions; notes/photos under project access policy
    Result/evidence: ______________________________________________

CHECK AND REVIEW
[ ] Independent reference and repeat observations
    Result/evidence: ______________________________________________
[ ] Repeatability kept distinct from agreement with reference
    Result/evidence: ______________________________________________
[ ] Uncertain/failed locations flagged for project decision
    Result/evidence: ______________________________________________
[ ] IDs, coordinates, timestamps and required fields checked after export
    Result/evidence: ______________________________________________
[ ] Original records retained; edits and public generalization documented
    Result/evidence: ______________________________________________

FICTIONAL LOCAL-GRID CHECK (all values in meters)
Reference: E=1000 N=2000. Samples: (1003,2004), (1004,2004), (1002,2004).
Mean: (1003,2004). Displacement: sqrt(3^2+4^2)=5 m.
Samples cluster within 1 m of their mean; reference agreement differs.

SOURCE DOCUMENTATION
https://doc.arcgis.com/en/field-maps/ios/use-maps/configure-field-maps.htm
https://doc.arcgis.com/en/field-maps/latest/prepare-maps/high-accuracy-data-collection.htm
https://www.gps.gov/gps-accuracy