Scott, I've seen this with 2.4 ubnt and the airview results were
misleading.... Trial and error was the only thing that helped me find
the best channel... Spent the better part of two days fighting it. I
put too must faith on the spectrum analysis and it sent me chasing my
tail.
Sent from my android device.
-----Original Message-----
From: Scott Reed <sr...@nwwnet.net>
To: WISPA General List <wireless@wispa.org>
Sent: Mon, 30 Jan 2012 8:55 PM
Subject: Re: [WISPA] Backhaul Link gone bonkers
I will certainly be getting a UBNT something on at least one tower to
see what is going on.
I did e-mail the big tower owner about changes on it. I know we are the
only operation on the smaller tower.
On 1/30/2012 8:32 PM, Greg Ihnen wrote:
> +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: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] 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: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org]
>> 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
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
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>>>>>
>>>> --
>>>> 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
>>>>
>>>>
>>>>
>>>>
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>> --
>> 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
>>
>>
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01/30/12
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>
--
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
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Checked by AVG - www.avg.com <http://www.avg.com>
Version: 2012.0.1901 / Virus Database: 2109/4776 - Release Date: 01/30/12
