26 05 2026
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GPS Agro-Navigator: How to Stop Burning Money in the Field
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Table of contents
- How Much Are You Losing Without an Agro-Navigator
- What a GPS Agro-Navigator Changes in Practice
- How Parallel Guidance Works
- Standard GPS vs RTK: What Is the Difference
- When Will a GPS Agro-Navigator Pay for Itself
- How to Choose a GPS Agro-Navigator for Your Farm
- Step 1. Define your type of work
- Step 2. Consider your field area
- Step 3. Check compatibility with your machinery
A GPS agro-navigator is a specialised navigation system for agricultural machinery that uses satellite signals (GPS, GLONASS, Galileo) to guide a tractor, sprayer or combine along precise parallel lines across a field. Rather than relying on the operator's eye, the system displays real-time course deviation and prevents both missed strips and unnecessary overlaps during field operations.
10-15%
fuel and crop protection savings
2 cm
accuracy with RTK signal
1 season
payback period
500 ha
and the device pays for itself
How Much Are You Losing Without an Agro-Navigator
Without a navigator, operators rely on their own judgment. Even an experienced driver creates 5-10% overlap relative to the working width. On a 100-hectare field that means 5 to 10 hectares treated twice - and paid for twice.
A practical example: the cost of treating 1 ha with herbicides and diesel is approximately 800-1,000 UAH. At 7% overlap on 100 ha that is 7 extra hectares per operation. Over a season with 4 operations, losses reach 22,000-28,000 UAH. This is direct overspend only, before accounting for uneven application and yield loss on missed patches.
At night, in fog, or simply at the end of a long shift, deviations only grow larger. A GPS agro-navigator eliminates the human factor entirely - the device does not get tired and does not drift off course.
What a GPS Agro-Navigator Changes in Practice
Once a parallel guidance system is installed, results are visible immediately:
- Fuel consumption drops by 10-15% by eliminating unnecessary overlaps and optimising field passes.
- Crop protection product and fertiliser costs fall proportionally - no double application in some areas and no missed patches in others.
- Operators can work night shifts - the screen and LED light bar provide full orientation in complete darkness.
- The system saves the work track. If an operation is interrupted, it can be resumed exactly where it stopped.
- Accurate row spacing at planting directly affects germination uniformity and final yield.
How Parallel Guidance Works
An antenna mounted on the tractor cab receives signals from multiple satellite systems simultaneously. The receiver processes them 10 times per second and sends the data to an in-cab display. The system calculates parallel lines based on your implement's working width and shows real-time course deviation.
In standard mode, accuracy is 25-30 cm. With an RTK signal (correction from a base station or network), accuracy improves to 2 cm. That difference is critical for precision seeding or inter-row cultivation.
Standard GPS vs RTK: What Is the Difference
| Parameter | Standard GPS | GPS with RTK Correction |
|---|---|---|
| Accuracy | 25-30 cm | 1-2 cm |
| Base station required | No | Yes (or CORS network) |
| Suitable for spraying | Yes | Yes |
| Row crop planting | Limited | Yes |
| Entry price | from 12,000 UAH | from 40,000 UAH |
| Signal drift between shifts | Present (2-5 cm) | None |
For most farms focused on spraying and tillage, standard GPS accuracy is sufficient. If you grow row crops, RTK is worth considering.
When Will a GPS Agro-Navigator Pay for Itself
In practice, treating 300-500 ha per season is enough for the device to fully recover its cost through savings on crop protection products, diesel and seed. Even on areas from 100 ha, most units pay back within one or two seasons.
Example: a farm with 200 ha of arable land running 4 spraying operations per season. At 7% average overlap and an operation cost of 900 UAH/ha, the estimated annual saving is around 50,000 UAH. A budget agro-navigator priced at 15,000 UAH pays back within the first season.
How to Choose a GPS Agro-Navigator for Your Farm
Step 1. Define your type of work
For spraying and tillage, 25-30 cm accuracy is enough. For row crop planting or strip tillage, RTK accuracy to 2 cm is required.
Step 2. Consider your field area
Up to 150 ha, a basic system running on an Android tablet works well. From 300 ha upward, a purpose-built ruggedised display with a high-gain antenna and extended satellite reception is the better choice.
Step 3. Check compatibility with your machinery
Most modern agro-navigators fit any make of tractor: MTZ, John Deere, Case, New Holland and others. Installation typically takes a few hours and requires no intervention in the tractor's electrical system.
rtk-navigation.com offers in-house designs by Ukrainian engineers - antennas and complete kits for agro-navigation under the ASN Agro, Nav Agro and Smilab Agro lines. All systems are adapted to the conditions of Ukrainian fields and supported locally.
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