Understanding RTK Robot Mower Technology in Segway and Mammotion Models: Key Questions Answered

RTK (Real-Time Kinematic) positioning is revolutionising the world of robotic lawn mowers by enabling highly accurate, wire-free navigation. Brands like Segway Navimow and Mammotion LUBA are leading the way in this space. But as this cutting-edge technology grows in popularity, so do the questions. In this post, we tackle the most common technical questions UK homeowners ask about RTK robotic mowers — from antennas to connectivity — with a focus on Segway and Mammotion models.

1. Does the RTK antenna need line of sight to the entire mowing area?

In  practice, this is not a clearcut answer. Often it does not, however tree, buildings, fences and the like will all potentially disrupt. So, yes, for optimal performance, the RTK antenna (or base station) requires a clear line of sight to the mower. Where this just isn’t possible, it is worth noting that line of sight isn’t always quite as critical as manuals may suggest, but it is the risk you take by not following the overly-cautious (in some cases) manufacturer guidelines. This is essential for models like the Segway Navimow and Mammotion LUBA, which rely on real-time correction signals via satellite.

To reduce signal disruption, position the antenna high and central with a wide view of the sky. Mammotion offers optional RTK signal repeaters to assist in gardens with complex layouts and for largely platform within the Segway Navimow range, secondary antennas can be added. For teh record we have both platforms performing reliably through buildings at great distances – this question is very subjective and the only way to get real clarity on this before buying, is to speak to an expert for specific guidance on your property.

2. Does the RTK antenna need Wi-Fi or an internet connection?

Segway and Mammotion both use local RTK GNSS systems, which means they do not require Wi-Fi or internet during operation. The RTK base station transmits correction data directly to the mower via a secure radio frequency.

That said, Wi-Fi is useful for mobile app connectivity, firmware updates, and remote support — but it’s not essential for daily mowing tasks. A 4G or WiFi is — usually — essential for the initial set-up, but we encourage customers to always look to have the basestations within either 4G or WiFi territory, to maintain peak performance.

3. How accurate is RTK in a garden setting?

RTK positioning delivers precision of 2–3 cm in ideal conditions. Both Segway Navimow and Mammotion LUBA mowers can mow right up to edges — save for the uncuttable tolerance of each machine — and digital boundaries without the need for physical wires. In typical UK gardens, accuracy remains sub-10 cm, delivering clean, professional results with minimal edging required. The additional of Ai camera and sensor technology has proven critical to the reliability of wire-free robot mowers in Uk gardens, where flower beds, mature trees and tall dominant buildings are the norm.

4. Can RTK robot mowers work in gardens with trees, fences, or walls?

Yes, though performance may vary. Trees with thick foliage, tall fences, or walls can obstruct satellite signals. The Segway Navimow X and i series are designed to maintain performance even in semi-obstructed environments using smart algorithms. Mammotion LUBA can be paired with an RTK extender to improve signal coverage in more complex gardens.

In both cases, strategic placement of the base station and use of accessories like extenders and antenna brackets can greatly enhance reliability.

5. What happens if the RTK signal is lost?

If the signal is briefly lost, both Segway and Mammotion mowers will pause and attempt to re-establish the connection. If the interruption persists, they typically return to base or reroute as needed. Newer Segway models can use IMU (inertial measurement units) and smart fallback algorithms to maintain mowing paths temporarily without RTK signal.

Installing the base station at the highest, most open location on your property helps minimise these disruptions.

Want to explore RTK mowers for your home? Visit The Robot Mower UK to compare Segway Navimow and Mammotion LUBA models, installation guides, and exclusive deals.