Re: [AFMUG] *&%$ 320

[Jesse DuPont]

I'll chime in on this... We had four separate multipoint APs this morning, two on one tower and the other two each on their own separate towers, all drop all their RF sessions to SMs and had to be rebooted before the SMs would reconnect. I wonder if, had the equipment been higher quality, maybe the SMs would not have dropped, just degraded for a bit (perhaps)? Other than these are all in the same 20 mile radius, they have nothing in common other than the owner. Do you think it's the same symptoms/problem? Jesse DuPont Network Architect email: jesse.dup...@celeritycorp.net Celerity Networks LLC Celerity Broadband LLC Like us! facebook.com/celeritynetworksllc Like us! facebook.com/celeritybroadband On 10/6/16 9:02 PM, George Skorup wrote: Thunderstorms this afternoon. Then it cleared and the sun was beating down for a while. Still 70F outside. Dew point 67F. 90% humidity. Wind dropped to zero around dusk, which is the major contributing factor. Feels like a summer night outside right now. The wind should pick up a little bit later and mix things up. Hopefully. Our 30 mile 6GHz path is about 7dB low one direction and 18dB low in the other direction (Rx high side) right now. Sitting at 256QAM and 64QAM. As I'm writing this, I'm sitting here watching the Rx high side RSL swing back up 10dB in less than a minute. Now both RSLs are even, but still 7dB below normal. And both sides back to full mod. Now it's starting to reverse. The Rx low end is going down hill while the Rx high is sitting fairly steady. And now they're even again. You can really see the frequency selective fading with the FDD split. Cool stuff. Sucks, but still cool to watch. On 10/6/2016 9:17 PM, Ken Hohhof wrote: George, is this due to some weird weather by you?   Oh, and one thing to consider if you have 3.65 interference, I found out ComEd is using 3.65 WiMAX for smartgrid, I don’t know if this is the top of the hierarchy for their 900 MHz stuff, or SCADA to substations.  One tower by me they have 4 sectors and I think each AP only feeds 1-2 CPEs.  It didn’t help that they totally messed up the lat/lon of their tower when they registered it in ULS.  Once I looked at the CPE locations and drew lines following the stated azimuth, I saw they converged on a tower next to a ComEd facility.     From: Af [mailto:af-boun...@afmug.com] On Behalf Of That One Guy /sarcasm Sent: Thursday, October 6, 2016 9:05 PM To: af@afmug.com Subject: Re: [AFMUG] *&%$ 320   lol well it wont be coming from us for a while, we are going 3ghz silent   On Thu, Oct 6, 2016 at 8:58 PM, George Skorup <geo...@cbcast.com> wrote: Dude, I'm seeing multipath and ducting like a somebitch. Started around dusk. Don't beat your head into your desk. I'm seeing some 11GHz links go from their nominal -45ish to like -35 to -60 in just a couple minutes, and BER alarms like crazy. This is teh suck.   On 10/6/2016 8:47 PM, That One Guy /sarcasm wrote: There is some nutty madness going on on a large portion of our 320 network, it has hit multiple sites at once. I know much of its self induced due to too many marginal installs on very limited access points   good CINR to SMs, even matrix B I cant even get into to manage.   uplink MCS for the most part looks good until i get into the frame utilization, tons of 16qam 1/2 and 100% usage with only 6-12 mbps throughput   I have been shifting frequencies across the network because it presented like interference, and a change on one AP results in required cascade changes across the 3ghz network since 320 sync doesnt actually work.   APs are basically default layer 2, no profiles changed, 7mhz channels mostly ABCD 90s and some split APs. sub counts range from 10 to 35   I migrated a distant part of the network to 10mhz channels and am not seeing this issue, but subscriber counts are low   Im at my wits end on this nonsense and am about to just put every AP on the network in SA mode to get a visual on what my spectrum looks like   we did turn up a 450 facing southwest ten miles south of another 320 AP thats facing south, it blinded the SMs to the 320 on a near channel even though they were only in the back lobe, but this is far from the others   any advice from you other guys stuck with wimax would be appreciated     -- If you only see yourself as part of the team but you don't see your team as part of yourself you have already failed as part of the team.     -- If you only see yourself as part of the team but you don't see your team as part of yourself you have already failed as part of the team.