Recently received the Yarbo core and snowblower module.
Firmware 3.6.0
Android App version 3.15.6
Data Center version 1.1.1
The only place there is a clear view of the sky is on the roof. In the process of setting up the data center using the Yarbo android app, I get a solid green light on the data center itself, but I always get stuck at the screen in the app that says it “sees” 28 satellites, but the signal is poor.
I have a TV antenna on the roof. Attached to the TV antenna’s tripod are both the Yarbo data center, and the antenna for the Mammotion Luba 2 robotic lawn mower. I contacted support about the problem, they say that I need to try keeping the data center on the roof, but more than seven feet away from the Mammotion’s antenna - They are saying that the Mammotion’s antenna is causing intereference, even when I have the Mammotion antenna powered off. (Strangely, the presence of the data center and the TV antenna next to the Mammotion antenna causes no such interference for the Mammotion antenna, it works wonderfully.) I am not an electrician or a physicist, so I don’t understand why these antennas being close to the data center will cause problems for the data center, but I’ll rely on their expertise.
I am at a stage of life where I no longer climb up on steep roofs 30 feet up. That means I have to find/hire someone to do that for me. Yarbo support %seems% to be taking the approach of, Try one thing, see how it works, email support back with the results, then they’ll suggest something else I should try, then email back with the results, etc. Kind of taking things one step at a time. Sounds logical, but I really want to avoid having to beg/pay someone to be making multiple trips up on the roof.
My question: Is there a logical series of steps I should pursue - E.g., Try A, if that fails try B, etc. - that I can know in advance so when I do send someone up on the roof we can work through all the steps all at once?
A picture of the install location would be helpful. Also the dc details like Ken said. It might be a bad RTK antenna. You could try swapping the right antenna ( as you face the rear of the core) off the core with the data center antenna. See if that makes a difference. Also make sure you’re not standing over top of the data center blocking the signal when trying to install in the app. Sometimes it does take a few minutes to go from poor to good or excellent. Power cycling the data center for 5 mins might also help.
Just to make clear: The data center is mounted on the roof, and I’m not up on the roof, so there is no problem of me standing over the top of the data center blocking the signal.
“Power cycling the data center” - Do I do that simply by unplugging the data center’s PoE cable, and after waiting five minutes plug it back in? That’s all there is to “power cycling”?
Yes, just unplug POE injector for 5 mins. Your DC CNR values in the scatter plot are very low. 37 is the minimum for things to work. You want at least 40. What is above the DC on the pole? That might be blocking your signal. Could also be the RTK antenna, but right now I am leaning towards whatever is near it blocking some of the signal. Are you able to strap it to the long pole at the top of that mast? The higher you can get that with the less obstructions above or near it, the better.
Can’t take a photo now, but what is about three feet above the data center is your typical set of horizontal metal poles of a TV antenna.
I will try what you say (once I find someone to go up there to fiddle with it), but I must say: I could more easily understand the theory that the TV antenna structure above the data center is blocking signals to the data center if the Mammotion antenna also had the same problem since it is also sitting below that same TV antenna structure.
“Pointed” to the north, so as you look at that photo, pointed off to your right and to a small degree pointing away from you as the viewer. Both the data center and the Mammotion antenna are under the same “stuff” from the TV antenna.
If neither of those work then unfortunately, it is up to support to diagnose it. Have you tried throughout the day? Sometimes you can get signal good enough at certain times of the day to complete the install at a minimum. But I would keep an eye on those CNR values. It won’t work with them below 37. You mainly want GPS constellation, the others are good to have too, Galileo is usually not great here in the US, so they all don’t need to be perfect.
Did your DC come with the DC extension kit barrel connectors and did you put it on the RTK antenna? That could possibly help too if you didn’t.
It would be 3 SMA barrel connectors that you would screw onto the HaLow, Bluetooth, and RTK antenna connectors on the data center itself. You put the rubber/foam thick washer on top of that and then the plastic bar over top of the RTK and HaLow antennas. The bar biggest loop basically sits on the washer and as you tighten the RTK antenna it expands and holds the bar tight. I know this bar is included with new units but I don’t know if they include the other components. I am only assuming they are.
Just mount for a moment Yarbo RTK on the top of TV antenna above middle pole and check (currently TV antenna reflects one side).
During installation I noticed also that RTK antenna should be 100% vertical (check it by level), if its not vertical signal is decreasing (you can see in diagnostics by placing in 45 angle for example).
