No-go zones slightly moved on map

Today Yarbo broke an antenna because no-go zones apparently has slightly moved on the map. Have not changed the ngz and yarbo was mowing everything successfully already various of times … now it drove under this tree and broke the antenna


I could not have mapped the ngz where yarbo was driving because I’d have broken off the antenna while drawing the ngz.
And from the uncut grass on the other side we see that ngz moved .

Now I’m curious how can i tell which else ngz’s are inaccurate and might cause issues in future.

If you look at your map and the location of the NGZ, do you see a deviation as opposed to where it used to be?

My initial thought is that the NGZ didn’t change, but Yarbo temporarily lost GPS under the tree and wandered into the NGZ accidentally.

Yes. It was off on the map. When I drove Yarbo near the tree and looked at the ngz, it was not on the edge of ngz …
But that’s not the case with all the ngz on the map …

Hmm. Ok. Did you happen to notice what the GPS and HaLow indicators looked like when you drove your Yarbo over to the NGZ?

Green is good. That’s what we would want to see. If orange or red, Yarbo didn’t have a good signal at that location and might have been guessing its location.

This is most likely what happened and PPVS let it roam a bit too close.

This is the reason I do not like PPVS. I have marks on the back brace mount, near the antenna, now that I turned on PPVS because support told me to do it to help fix their software issues.

It’s also possible it’s related to this solar flare event with R2 level interference.

crank it down to a few feet and you should effectively disable it without disabling it

I had them set at 20 feet, now set at 1. It has made marks twice now, but I don’t know where. My guess is metal fencing around a good part of my yard.

Of course yarbo is having troubles with gps under trees and most probably some deviations when drawing the ngz, but the thing is - i’ve been mowing that area already several times without yarbo self destructing.

Looks like i will take this as a lesson to increase buffer around ngz in such areas + when more advanced antennas will arrive, i will have to remap the borders and some ngzs.

Because with existing antennas, when driving along building wall yarbo loses gps and i drive back following the exact track prints, when gps is recovered and i keep driving forward, the result on map is this.

So, when drawing ngz yarbo loses gps and recovers, the deviation also could be such significant.