My yarbo kept reporting weak GPS signal recently (it didn’t before). Diagnose shows L2 fluctuates from 0 to 2 for most of the time, even though the core has access to open sky. Here are the what I did:
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Created a support ticket, but somehow yarbo support directed me to PPVS. Disabling PPVS didn’t help. L2 still very low.
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I swapped Yarbo’s right side antenna with DC’s antenna, didn’t help.
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I bought 2 3rd party RTK antenna on amazon and put them on Yarbo. All of the sudden, I am getting L2 between 10 to 15 now.
I don’t know why swapping Yarbo antenna with DC’s didn’t work. But swapping to 3rd party antenna seems to work. I will give it more test over the snow storm over the weekend. Hope this hack helps to solve the weak GPS signal problem.