The best place for your robot mower RTK station is a location with a clear, unobstructed view of the sky in all directions, mounted on a stable surface at least 2 meters above ground, and within 300 meters of the areas you need to mow. This setup ensures the station receives consistent satellite signals and can communicate reliably with the mower. Getting the placement right is the single most important factor for accurate RTK positioning, and a few simple rules will help you avoid common mistakes.
Why a Clear View of the Sky Matters
The RTK station relies on signals from multiple satellites. Trees, buildings, and even tall fences can block or reflect these signals, causing loss of fix or degraded accuracy. The station needs to see as much of the sky as possible, ideally 180 degrees or more. A single large obstruction in one direction can knock out a critical satellite, reducing precision.
Before installing, check the site at different times of day. Shadows from nearby trees or structures shift. If a tree casts a shadow over the station in the morning, it may still block signals even if the sky looks clear at noon. The station needs consistent sky access throughout the entire mowing season.
Distance from the Mowing Area
The RTK station communicates with the mower via radio or Wi-Fi. Most systems have a practical range of 300 to 500 meters, but walls, hills, and metal objects can reduce that dramatically. Place the station as close to the center of your mowing area as possible, especially if your yard is irregular or has multiple zones.
If your yard is very large or has obstructions, you may need to mount the station higher to improve line of sight. A pole or roof mount can make a big difference. Do not rely on the mower’s built-in radio alone; the station’s location is the anchor.
Avoiding Metal and Electrical Interference
Metal roofs, large metal sheds, power lines, and even reinforced concrete walls can interfere with GPS signals and radio communication. Keep the RTK station at least 5 meters away from any large metal structure. If you must mount it on a metal roof, use a non-conductive spacer or pole to isolate it.
Wi-Fi routers, microwave dishes, and other transmitters can also cause radio interference. Place the station away from other electronics, and if possible, use a dedicated frequency band for the RTK link. Check the manufacturer’s recommendations for minimum distances.
Mounting Height and Stability
The station should be mounted on a sturdy, level surface that does not move in wind or with ground vibration. A fence post, roof apex, or a dedicated pole set in concrete are good options. The height should be at least 2 meters above ground level to clear low obstructions and reduce multipath errors from ground reflections.
A tripod is not ideal for permanent installation because it can shift over time. Once the station is mounted, check that it is level. Most RTK stations have a bubble level or built-in tilt sensor. An unlevel station introduces errors in the baseline calculations.
Weather Protection and Exposure
The RTK station is designed for outdoor use, but direct rainfall and extreme sun can shorten its lifespan. If possible, place it under a small overhang or use a weatherproof cover designed for the model. Avoid fully enclosed spaces that block the sky.
Snow and ice accumulation on the station’s dome can also block signals. In cold climates, choose a location that is easy to access for clearing. Some stations have a built-in heater, but if yours does not, you may need to manually clear snow after storms.
Ground Stability and Drainage
The station’s base must not sink or tilt over time. Avoid installing on soft ground, loose sand, or areas prone to erosion. If mounting on a post, set it in concrete below the frost line to prevent frost heave. A shifting base means the station’s known position drifts, which reduces mowing accuracy.
Good drainage around the base prevents water pooling, which can damage the electronics. If the station is at ground level, consider a small gravel bed or a concrete pad.
How to Fix Common Placement Mistakes
- If the station loses satellite fix, move it to a spot with a wider sky view, away from trees and buildings.
- If the mower loses connection, reduce the distance or eliminate line-of-sight obstructions between station and mower.
- If accuracy is poor, check for metal interference or an unlevel mounting surface.
- If the station shifts in wind, secure it with a sturdier mount or concrete base.
- If signals degrade in bad weather, consider a higher mounting point or a weather cover.
Understanding how RTK positioning works will help you make better placement decisions. For a deeper explanation of what affects precision, read our article on how accurate is RTK robot Mower? what affects precision.
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Frequently Asked Questions
Can I place the RTK station indoors?
No, the RTK station needs a clear view of the sky to receive GPS signals. Placing it indoors, even near a window, will block most satellites and prevent it from getting a fix. The station must be outdoors with a full sky view.
Does the RTK station need to be perfectly level?
Yes, the station should be as level as possible. Most manufacturers specify a tolerance of a few degrees. An unlevel station introduces errors in the baseline calculation, reducing mowing accuracy. Use the built-in level or a separate spirit level during installation.
How far from the house should the RTK station be?
At least 5 meters from any large building to avoid signal blockage and multipath reflections. The exact distance depends on the building’s height and materials. If the house is two stories, you may need to mount the station on a pole to clear the roofline.
What happens if the RTK station loses satellite signal?
The mower will lose RTK correction data and may switch to standard GPS, which is much less accurate. It might stop mowing or deviate from its path. The station will automatically reacquire the signal once the obstruction is removed or the sky clears.
Can I mount the RTK station on a metal pole?
Yes, but the pole should be non-conductive or at least coated to prevent interference. A steel pole can affect the GPS antenna pattern. Use a plastic or fiberglass pole, or mount the station on a bracket that isolates it from the metal.
Choosing the right location for your RTK station ensures your mower operates accurately and reliably. For more information on how RTK systems work and what affects their precision, check out our guide on how accurate is RTK robot Mower? what affects precision.
