Why does my Yarbo lose GPS in one part of the yard?

The short answer Yarbo places itself with RTK, which needs a clear view of the sky and a correction stream it can trust. Trees, a roofline, a wall or a dense hedge take that away in one part of the yard while the rest is untouched. The robot then stops rather than work somewhere it cannot place itself.

Why one corner and not the rest

Satellite count is rarely the whole story. A robot can see plenty of satellites and still not be able to trust the fix, because what matters is whether it can resolve a precise position from them.

That is why a spot can fail every single visit while the machine reports a healthy sky. The useful question is not how many satellites, it is whether the robot could trust its heading at that place, at that moment.

Finding the spots that fail

The GPS reception list: each patch that could not trust its heading, with how many of its visits failed. — **GPS reception.** Sky view problems get their own group, because the fix is different from an obstacle: move the route, or clear what is overhead.

Each line names the zone, the size of the patch, how far it is from the dock and how many of its visits went wrong there, in the form a 20 ft patch about 785 ft north of the dock could not trust its heading on 5 of its 5 visits. Five out of five is a place. One out of nine is weather.

Standing still with a good signal is never counted A robot parked on the dock is not having a signal problem, and counting it as one would bury the real spots. Yardstick only counts trouble while the machine is actually working.

What actually helps

Clear what is overhead if you can. A single low branch over a narrow pass is a common cause and a five minute fix.
Route through it differently. A pathway that crosses the bad patch quickly, rather than a mowing pattern that dwells in it, often turns a failure into a non-event.
Give up on the worst of it. Some ground under dense canopy will never hold a fix. A no-go zone there is not a defeat, it is an accurate description of your yard.
Check the correction stream in the Health panel. If corrections are arriving late everywhere, the problem is not the trees.

🗺

Features Pricing Support Forum Download Changelog Reviews Terms Privacy

Why does my Yarbo lose GPS in one part of the yard?

Why one corner and not the rest

Finding the spots that fail

What actually helps

Related

Reading your map

No-go zones

Getting stuck