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Bad Link Quality Despite Good SNR and Data Speeds

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KI6GOA
KI6GOA's picture
Bad Link Quality Despite Good SNR and Data Speeds
Good Afternoon Everyone,

I'm hoping someone can help me with a problem I've been struggling with for a few weeks now. I have an AREDN node at my home in Corona, California and another at a repeater site nearby (Sierra Peak). Both are aligned to the KE6BXT 5 GHz Northeast node on Plesants Peak. The node at my home had good connectivity until a few weeks ago. The Sierra Peak node is new hardware, although I had a Ubiquiti Nanostation there previously that just was not cutting it. I've since replaced that with a Ubiquiti Powerbeam. The distance between nodes is 7.93 miles and 4.04 miles respectively.

Here's my issue. A few weeks ago, the node at my home stopped connecting to the site on Plesants Peak. I assumed a palm frond from a nearby palm tree had just overgrown and gotten in the way again. That happens about every three months or so. However, since trimming the overgrown palm and re-aligning the antenna, I have no connectivity. I show good signal-to-noise ratio (29), see a good data speed at 27.4 MBPS, and an error rate of only 7%. But, there is no link quality measurement and no connectivity. Screenshots attached...

For my node at Sierra Peak, also aimed at the same node on Plesants Peak, I have practically an identical issue. I show good signal-to-noise ratio (27), see a good data speed at 31.1 MBPS, and an error rate of zero. But, I show zero link quality, and neighbor link quality of 66%, and again have no connectivity. Again, screenshots are attached.

Does anyone here have any idea what might be going on? I'm stumped! And unfortunately, the site on Plesants is really my only RF path into AREDN from my home.

Thank you in advance all,
Tom, KI6GOA

 

 

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nc8q
nc8q's picture
KE6BXT does not hear KI6GOA
Hi, Tom:

KE6BXT does not hear KI6GOA or your signal is below KE6BXT's minimum threshhold.
This does not appear to be a point-to-point (p2p) link.
This appears to be a point-to-multi-point link at KE6BXT(NORTHEAST).
Perhaps if KE6BXT was configured as a PtMP and both of your nodes and
K9LMR were configured at 'Mesh Station', this might work better.
 
73, Chuck
 
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