What Is Network RTK? Why It's a Bigger Deal in Minnesota Than Anywhere Else

If you've been researching robot mowers for more than five minutes, you've probably run into the term RTK. Maybe you've seen it listed as a feature, maybe a salesperson mentioned it, maybe you read it in a spec sheet and kept scrolling. Most people do.

But if you're a Minnesota homeowner, Network RTK — specifically the new version Segway Navimow rolled out in 2026 — is worth understanding. Because it solves a problem that's uniquely annoying in cold-climate yards, and it does it in a way that nobody was doing just a couple of years ago.

Here's the plain-English version of what it is, how it works, and why it matters.

What RTK Actually Is

RTK stands for Real-Time Kinematics. It's the GPS positioning technology that tells your robot mower exactly where it is — not within a few feet like your phone's GPS, but within a few centimeters. That centimeter-level accuracy is what allows a wire-free robot mower to stay within your mapped boundary without burying a physical wire in the ground.

Traditional RTK requires a reference antenna — a physical device you install somewhere on your property, usually on a roof, a fence post, or a dedicated mount in the yard. That antenna communicates with the mower, corrects for GPS signal drift, and keeps the mower precisely positioned.

It works well. It's been the backbone of Navimow's wire-free technology since the beginning.

The problem is the antenna.

The Antenna Problem in Minnesota

In most of the country, a fixed RTK antenna is a minor inconvenience. You figure out the best placement once, mount it, done.

In Minnesota, it's more complicated.

Minnesota soil freezes and heaves. The freeze-thaw cycle — which in the Forest Lake and East Twin Cities area can happen multiple times between October and April — shifts the ground. Posts move. Mounts tilt. Anything you've installed at a fixed elevation in your yard can end up a few degrees off by spring. For an RTK antenna, even a small shift in position degrades accuracy. What worked perfectly in October can be off enough by May to cause boundary errors, missed strips, or mower confusion at the edges of your mapped area.

This means Minnesota homeowners with traditional RTK systems often need to check and potentially recalibrate their antenna position each spring. It's not a huge job, but it's one more thing — on top of seasonal startup, blade replacement, and dock inspection.

Network RTK eliminates the antenna entirely.

How Network RTK Works

Instead of relying on a physical antenna you've installed on your property, Network RTK taps into a network of professional-grade RTK reference stations that already exist across North America. Navimow has established partnerships with these network providers to give its mowers access to their corrective data.

Here's what happens when your mower is running on Network RTK:

The mower's built-in 4G module (standard on all 2026 Navimow models) connects to the internet — either via cellular or your home WiFi. Through that connection, it receives corrective positioning data from the nearest reference stations in the network. The mower's onboard AI processes that data, cross-references it with its internal RTK antenna, and maintains centimeter-level accuracy — same as before, just without anything physically installed on your property.

No antenna on your roof. Nothing in your yard. Nothing to shift, tilt, frost-heave, or recalibrate.

What This Looks Like for the Homeowner

In practical terms, Network RTK changes the installation experience significantly.

With traditional RTK: installation involves choosing an antenna location, mounting it, running the cable or establishing line of sight, pairing it with the mower, and calibrating. Then in spring, checking it again.

With Network RTK: installation is the mower, the dock, and the app. That's it. Romow's professional installation for a wire-free Navimow system takes 1–2 hours and leaves nothing behind except the dock.

Spring startup is equally simple. No antenna to inspect. The mower connects to the network, receives its corrective data, and picks up exactly where it left off.

Coverage: Is Network RTK Available at Your Address?

Navimow's Network RTK covers the vast majority of populated areas in the continental United States. As of 2026, coverage is well above 90% across the Twin Cities metro, Forest Lake corridor, and East Twin Cities communities including White Bear Lake, Stillwater, Hugo, North Oaks, Lino Lakes, Maplewood, Oakdale, and Woodbury.

You can verify coverage at your specific address by visiting navimow.com, going to the commercial solutions section, and clicking the NRTK coverage map. Enter your address and zoom in to confirm.

Remote and rural areas — particularly in outstate Minnesota — may have gaps. In those cases, a local base antenna is still supported on certain models and remains a fully valid option.

Which 2026 Navimow Models Use Network RTK?

All of Navimow's 2026 production models ship with a built-in 4G module and support Network RTK:

The i2 All-Wheel Drive (both the 1/8 acre and 1/4 acre models) supports Network RTK, though it also retains the option for a local base antenna. The i2 LiDAR is vision-only and requires no RTK at all — it doesn't need it. The H2 LiDAR series runs exclusively on Network RTK plus LiDAR, with no local antenna option or need for one. The X4 All-Wheel Drive and the Teranox commercial series both use Network RTK.

The only 2026-era models that do not support Network RTK are the original H1 and i1 — older generations that predate the network infrastructure.

The Subscription Cost

Network RTK is not free forever, but it's not expensive either. Navimow offers it as an included service for the first year or two depending on the model, with renewal pricing of $32.90 per year for residential models. That's less than $3 a month for the technology that keeps your mower accurately positioned without any hardware on your property.

For context: a local base antenna for a traditional RTK system typically costs $150–$250 to purchase. Network RTK pays for itself relative to that cost within a few years, while also eliminating the physical maintenance and spring recalibration.

The Bottom Line for Minnesota Homeowners

Network RTK isn't a flashy feature. It doesn't show up in a demo video. But for anyone installing a robot mower in a Minnesota yard where the ground moves every winter, it's the kind of behind-the-scenes technology that makes everything else work better, year after year, without you thinking about it.

That's exactly the kind of thing robot mowing should be.