I’m not an expert with Mimosa, but after this problem started about 2 months ago, I’ve been reading a lot more into them. My link goes down about once a week, sometimes for hours, sometimes for no less than 15 minutes. I can fix it by restarting the Master and that usually gets the link back up and going again. I’m going to give a brief about the point-to-point backhaul and maybe someone can give some insight, it’d be much appreciated!
The PTP link is about 7.5 miles/12km. Before it was a problem, we were able to get 60-90Mbps throughput out of it. Which I feel is kind of slow for the amount of people that use this backhaul. Unfortunately, we don’t have a licensed frequency, but have been looking into it. The radios are set in an area with a lot of noise in the 5GHz spectrum, so choosing frequencies is slim pickins. Currently though we’re using 5795 on 1x80 at 30 TX Power, this seems to do the best. I dropped to 5795 from 5810 because the upper area was heavy with noise.
We have re-aimed the dishes and was able to get more signal, however the problem is consistent… I have a -68 with a noise floor of about -83, so about 15 SNR. The PER seems to jump from 1% to 5%, but usually no more than 5%. I have the Rate Adaptation set to PER and the PHY rate set to Aggressive. I found this works better when dealing with noise.
I’ve tried just about everything and don’t know if I should replace the NMNM cables, which I can’t even find for sale alone. Any help would be appreciated.