yikes!
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Looks like that happened during the initial perimeter lap, again. Expect that to be a recurring event at that location.
For that area, consider kicking off the job with the % done set to after that 1st perimeter lap. Maybe even past the 2nd lap, for that matter, if it wanders during that one also.
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If only there was a % to lap calculator… 
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I finally received my replacement battery and realized the new core didn’t come with any of the antennas or the metal plates for the tracks 
It has been almost a month at this point though, so I hooked up the submarine’s antennas and they appear to be working. I’m letting it charge overnight before setting it out on my yard.
Does anyone have any answers from support on how to avoid it trying to find its way out of a no go zone and ending up in a pool if somehow drifts again? I’d really prefer my automated mower to not require me watch it work the whole day to make sure it isn’t offing itself again.
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Replacements it is standard to swap the antennas and track plates. Those should be fine, but if you have issues, definitely let support know. Keep your PPVS travel settings lower than the buffer you should place around the pool. In other words, add say 10 feet of buffer around the pool and set the PPVS below 10 ft, like 5. Or something like that. You could alternatively disable PPVS and if it has poor gps it will just stop and wait.
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Maybe some floaties…. 
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Hi @jtag,
When receiving a replacement Core, the antennas and track plates are meant to be reused from your previous unit. If they work fine, you can keep using them; but if you notice any issues, please reach out to us and we’ll help you sort it out.
As for preventing it from drifting into a No-Go Zone, you can adjust the PPVS Travel Distance Parameters to leave a wider buffer near the NGZ boundary — for example, by lowering the Boundary Travel Distance below the default value. Or, if needed, you can simply turn off PPVS to see if it improve the issue.
For more details about PPVS, you can check: https://wiki.yarbo.com/en/lawn-mower/app-guide/ppvs
For me, the best and fastest way to resynchronize the GPS is to restart the antenna, and after 1 or 2 minutes, as if by chance, it sees the satellites again, even though I may have waited 15 or 20 minutes for it to start.
What’s also really unfortunate is that we have to wait for it to see the satellites before we can give it the order to do a job ;-(
Can’t you automatically restart the RTK after x minutes of no localization? And even leave an option to do it simply without having to disconnect the PoE each time?
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I wonder if putting the DC in survey mode would do the same thing?
Diagnostics Tools→Yarbo Diagnostics → RTK Section Details → Connect to Data Center. Wait for the dots….
Might help troubleshoot. For instance if the dots don’t show its definitely stuck….
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@Yarbo-Forum are we going to get an update on the GPS issue? One day under blue sky Yarbo will be amazing then the next day with the same blue-sky GPS is L2 4-18 and a quality of 0.2< and will not function. Dead reckoning on or off, same. I have sent so many logs, pictures and repeat information I could fill a small book. Antennas are not broken, did the swap which I assume is a way to just get a person to reseat and tighten the antennas. Replaced cables, same. Halo antenna is good; DC and Core rebooted so many times I could not begin to count. Blue sky above, DC is line of sight, exact same ground covered from day to day. The setup has been verified over and over, but if I opened a ticket about this again today, I would get asked for the exact same information again, so I have given up on calling support. One more copy/paste email is not going to fix this anyways and whatever I have supplied apparently goes into a blackhole anyways. It is not a building, tree, bird, plane or Superman flying overhead that is the issue, it has to be GPS Antenna gain. If not that what? Yes, satellites move but this must have been accounted for. If you don’t want to replace a bunch of antennas that’s fine, I will keep it a secret, just tell me what to buy and I will be happy to get them. So, for now I wait and see, will my lucky GPS number come up, and I can use Yarbo or do I have to wait 8 hours and see if my number comes up that time. Right now, my winning streak just rolled a 7. Please, anything, some kind of update would be nice!?
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Saw someone mention in the FB groups about not having GPS today and another replying and saying a solar storm is in progress. Decided to go see if I could find an app to track this. Not sure when you tried last but looks like it’s getting worse today through the next few days and was fine yesterday. Don’t know if this correlates, if the app is accurate, or if it is even related to your specific issue. But I offer it as a data point.
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This started at 8AM. I am guessing the person saying that is the same guy I have seen that anytime someone brings up GPS he says its solar activity. NOAA does not have anything that is affecting us. I wish this was the case - at least it would be just a day every now and then. This goes on very regular. At least 2 or more times a week.
Hi @mike1 GPS reliability can be affected by many factors such as atmospheric conditions, signal interference, satellite geometry, and even satellite health or maintenance cycles.
That said, we completely understand how frustrating it feels when the signal varies under seemingly identical conditions. Our team is continuing to investigate and improve overall GPS stability.
If you’d like faster progress on your case, you can request a 1-on-1 tech support meeting in your support ticket — our Field Service Engineer will help troubleshoot your setup live and work toward a clear resolution.
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@Yarbo-Forum I don’t think this community wants a 1:1 meeting, I think they would like an answer beyond “atmospheric conditions”. Given this response you would think GPS technology was pretty fickle. Fine, you have given up on GPS because apparently that is not reliable technology. So, you have cameras, I have landmarks aka waypoints, aka trees and other fixed objects, a lot of them. Use them, heck I will go out on a good GPS day and mark them. Core always has a starting point that is a known location (charging station). Each marked waypoint is a known distance, visual confirmation + distance = BINGO!, I, Yarbo, know where I am on my map.
I don’t know about others, but I don’t need Yarbo to tell me it understands my frustration, if you did we would be getting some answers. Please, for the love of God would you tell us something other than DOD and Space Force has our GPS system under a maintenance window?1
I think a decent validation of the GPS atmospheric interference theory is somewhat straightforward - Are the other RTK based robots having similar issues at the same time and in similar geographic locations?
If yes, then it truly is a ‘global’ issue. If no, it’s more likely a Yarbo specific issue.
I know I’m simplifying things to a degree due to multiple variables, but I think this type of comparison is a good place to start.
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I wonder how many Yarbo’s are having the issue. Could it be narrowed down to a range of serial numbers/delivery dates? Could it be hardware related? Bad batch of GPS receivers? Since @Mike1 has already swapped antennas and antenna cables could the issue be deeper in the hardware?
I’m in Central Ohio and I currently don’t see these issues. I have in the past seen GPS issues especially when PPVS first came out. I turned it off and Yarbo was back to normal. I still have GPS issues in a couple places that makes sense that GPS would be bad. Near my metal shop for instance.
I have since turned PPVS back on and things seem to work as expected.
Although I am seeing the “Recharging successfully, but failed to charge. Please try manually adjusting Yarbo’s position on the Docking Station to ensure proper contact.” dialog which seems to be an erroneous message as the battery is indeed charging.
That just started showing up on October the 22nd. There was no update to the core that I am aware of so, they may be doing some changes on the server side.
My first mow was May 8th.
My cellular card didn’t get re-activated two months in a row but Yarbo eventually got that straightened out hopefully. @Yarbo-Forum has the cellular card re-activation issue been fixed? Should I open a ticket to ensure my cellular card gets re-activated for November?
And after fixing the pinched Halow antenna cable Yarbo has been working quite well.
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I have been trying to say that for at least two months now. Thank you @ken.w.gregory and @rgloverii. The go to is always atmospheric. You both hit it on the head - if it was the sun exploding this would be affecting large parts of the country. I am in WI so OH sure would be getting the same hit. @Yarbo-Forum are you still confident it is atmospheric conditions, or the GPS satellites happen to be rebooting when they pass over my house and Ken is in the clear?
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My personal opinion is that there are a couple of issues in play here…
1). Hardware related issues. The center pin on the GPS antennas seems to be short, and if not properly seated, intermittent issues occur. Yarbo support asking people to remove the washer from the antenna connector and swapping the antennas is a giveaway that there is a hardware issue
2). Issues in Yarbo’s code. Anecdotally, it seems like the introduction of PPVS in the last firmware release has caused new GPS related issues to surface.
3). Probably related to 1 & 2 above, Yarbo’s GPS sensitivity seems to be lower in general as opposed to the broader RTK robot mower market. I can attest that my 4 “other brand” RTK based mowers report significantly fewer GPS signal problems versus my Yarbo.
Hopefully these issues are not widespread and Yarbo will resolve them soon.
They tell people to remove the washer on the HaLow antenna for HaLow issues. There isn’t one for the gps, except a thin sheet one on some units. They have people swap left to right and right to left to see if the signal changes. If the primary antenna has a bad antenna or vice versa, the stats in the diagnostics will move with the swap. Also, sometimes they are just not tight or have become loosened and the byproduct is they fix it. If he’s already swapped and sounds like also tried swapping to high mounts then it’s either an intermittent hardware issue with the antenna or core, or it’s a software related bug. Maybe an internal component needs a manual firmware update or something. I’d hope they ship a couple of antennas to rule that out.
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@bryan.wheeler - spot on around Halo. They had me do that too.
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