SNR dropped from 25 to 13dB
I hesitate to share this to this forum because I know it would be difficult to fix as I did everything I know to fix the problem. But everything is no use and I'm thinking that the problem is from my device itself and not with configuration, alignment, obstacles.
For you to adapt my case, I will give you all details and background regarding to CPE. I have 8 pieces of CPE, 4pcs of 610 and 4 pieces of 510. I'm using 60 feet pole, anchored. I'm receiving 22-27dB SNR from 4 pairs. I manually configured channel based on what gives me the best ouput. In some settings, I worked on 40MHz, Maxtream:off, N only, and. auto distance. I learned it from R2D2 of this forum and it worked really great.
Everything is fine, I check all CPEs using pharos system everyday. until one day, this CPE610 with 7kms distance dropped the SNR from 25 to 13dB. The major obstacles in our place are trees so I don't consider that in overnight that were trees grew in between.
At first, I thought the two CPEs disallign, so I adjust it, first the client and then AP but still no help. I also adjust the elevation angle through anchor and still no help. We adjust little by little left and right, up and down elevelation and still no help. We worked on alignment for days. We didn't give that easy that we carefully make changes in alignment from time to time. It's almost 1 month now since we encounter the problem.
I'm thinking if there is a big house that has been constructed in between the signal, but then we are living in province and I don't see such things as obstacles plus the changes happened overnight.
I'm losing hope and the only thing I can do is to add more pole. So we did it yesterday, we add another 12 feet to reach 72 ft high. There was an improvent of 13db to 17db but still not enough thinking that I have 25dB before with only 60 feet pole.
so the last thing in my mind is my CPE is actually defective. if that is really the problem, now that I don't know which one is broken. it is not easy to change antenna from 60 and 70 ft pole. I tried to exchange the function of the two from client and AP and still the same 17dB. I also upgraded and downgraded firmware and still the same output.
thank you in advance for someone who is willing to share some concern.