Field Notes

Insights for field professionals

GPS accuracy, precision agriculture, GIS workflows, and field measurement tips from the FieldCalc team.

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Aerial view of a tractor spraying rows of crops in a precision-farmed field

Area

4.286 ha

42,860.28 m²

Perimeter

842.65 m

Ground

Satellite map view of a measured field with a 4.286 hectare boundary

Topics

All Posts Guides Comparisons Field Notes

5 articles

Comparisons

Choosing the Best Tractor GPS Guidance App in 2026

You no longer need a five-figure terminal for straight rows. Here is what actually matters when picking a guidance app.

PDPieter de Vries

8 min

Guides

UTM, Lat/Long and MGRS: A Coordinate Converter Explained

What the common coordinate systems mean, when to use each, and how to convert between them without errors.

AOAmara Okafor

6 min

Field Notes

Offline GPS Mapping: Working Where There Is No Signal

GPS works without cell service. Here is how to map confidently off-grid and sync the moment you reconnect.

SRSofía Ramírez

5 min

Guides

Exporting to SHP, KML and GeoJSON for Your GIS Workflow

A quick guide to the big three geospatial formats and how to hand off clean geometry to QGIS or ArcGIS.

RMRajesh Menon

6 min

Field Notes

Collaborative Field Surveying: Keeping a Crew on One Map

Multi-crew surveys fall apart when everyone keeps their own map. Here is how to run one shared source of truth.

LMLucas Moreau

5 min

Articles Published

Guides, comparisons and field notes.

Topics Covered

From GPS accuracy to GIS workflows.

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