+1 on getting something that does spectral analysis. Any new neighbors on the tower you're sharing? Any new gear they might have turned up?
Greg On Jan 30, 2012, at 8:08 PM, Eric Rogers wrote: > To me, that really sounds like interference. Don't look at the noise > floor. Get a UBNT in spectrum analyzer mode, and let it run for a > little bit. I bet you find something bleeding over the frequency. > > Eric > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Scott Reed > Sent: Monday, January 30, 2012 7:28 PM > To: WISPA General List > Subject: Re: [WISPA] Backhaul Link gone bonkers > > Update after more work today. > Replaced all the electronics at one end early this morning. No real > change. > Replace the cable and antenna at that end this afternoon. When we got > there the link was running with RSSI of around 67/70 and CCQ in the 50's > > both ways. Aligned the antenna and I watch the stats for a while while > the climber we getting the old antenna off of the tower. Signal > strength went to around 57/65 and quality was running in the high 80s to > > mid 90s. Thought it was fixed. Climber finished attaching new cable to > > tower as he came down. When He got to the bottom I checked things > again. Signals are 67/70 and CCQ is all over the place. I have seen > the CCQ jump from 90 to 14 at least once this evening. It didn't drop > the link at 14, rather it climbed back up to nearly 80 and then dropped. > I am at a complete loss as to what is going on. > Oh, the last time I looked, noise floor was around -100 so SNR is > running 30 to 40. > > On 1/29/2012 10:16 PM, Scott Reed wrote: >> Planned for tomorrow. >> >> On 1/29/2012 10:04 PM, Daniel White wrote: >>> Maybe your replacement hardware is bad too. Have you tried another > set? >>> >>> Daniel White >>> (303) 746-3590 >>> >>> >>> -----Original Message----- >>> From: [email protected] [mailto:[email protected]] > On >>> Behalf Of Scott Reed >>> Sent: Sunday, January 29, 2012 7:19 PM >>> To: WISPA General List >>> Subject: Re: [WISPA] Backhaul Link gone bonkers >>> >>> One end is just us and the 4 other links there are fine. >>> The other is is us and at least 2 other WISPS, an FM repeater > station, some >>> public service repeaters, some commercial 2-way repeaters and ... >>> Just looking at the tower, I don't think there is anything new, but I > will >>> ask the tower owner tomorrow. >>> We changed everything at one end and all but the cable at the other. >>> Other 5GHz links we have for either tower do not show symptoms of >>> interference, but that does not mean that isn't our problem. >>> >>> On 1/28/2012 8:31 PM, Greg Ihnen wrote: >>>> If you replaced all gear and even tried a different coax in place of > the >>> 60' of LMR then it would have to be some kind of noise, coming in via > the >>> power lines or radiated. Who else is on the tower? >>>> Did you only replace/try different gear on one tower or did you try > both >>> ends? >>>> Have you done any spectral analysis? >>>> >>>> Greg >>>> On Jan 28, 2012, at 5:35 PM, Scott Reed wrote: >>>> >>>>> I have a link that went bonkers last Saturday or Sunday and it has > me >>>>> stumped. >>>>> RB433AH with XR5 at each end. >>>>> Signals running around -69/-71. CCQ is the goofy one. Most of the >>>>> time one direction is in the 50% range, but varies quite a bit. > The >>>>> other direction ranges from 16% to 100%. Generally if I see it >>>>> getting close to 100% I know the link is going to drop. It comes >>>>> right back up, usually at about 50%. >>>>> I have tried 20MHz channels, 10MHz channels, 5MHz channels with > about >>>>> the same results from all. >>>>> I have tried 5.2-5.3 frequencies and 5.7-5.8 frequencies. The > higher >>>>> frequencies work better, but still not well. >>>>> All of the hardware except one 60' piece of LMR as been replaced. >>>>> Ask me some questions and offer some suggestions as this one has me >>>>> totally stumped. >>>>> >>>>> -- >>>>> Scott Reed >>>>> Owner >>>>> NewWays Networking, LLC >>>>> Wireless Networking >>>>> Network Design, Installation and Administration >>>>> >>>>> >>>>> >>>>> Mikrotik Advanced Certified >>>>> >>>>> www.nwwnet.net >>>>> (765) 855-1060 >>>>> (765) 439-4253 >>>>> (855) 231-6239 >>>>> >>>>> >>>>> >>>>> >>>>> > --------------------------------------------------------------------- >>>>> ----------- >>>>> WISPA Wants You! 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Join today! >>> http://signup.wispa.org/ >>> > ------------------------------------------------------------------------ > -------- >>> >>> WISPA Wireless List: [email protected] >>> >>> Subscribe/Unsubscribe: >>> http://lists.wispa.org/mailman/listinfo/wireless >>> >>> Archives: http://lists.wispa.org/pipermail/wireless/ >>> >>> >>> ----- >>> No virus found in this message. >>> Checked by AVG - www.avg.com >>> Version: 2012.0.1901 / Virus Database: 2109/4774 - Release Date: > 01/29/12 >>> >>> > > -- > Scott Reed > Owner > NewWays Networking, LLC > Wireless Networking > Network Design, Installation and Administration > > > > Mikrotik Advanced Certified > > www.nwwnet.net > (765) 855-1060 > (765) 439-4253 > (855) 231-6239 > > > > > ------------------------------------------------------------------------ > -------- > WISPA Wants You! 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