Done! > On May 18, 2019, at 11:21 AM, Chuck McCown <[email protected]> wrote: > > I just checked the membership list of this list. I don’t have any aviat or > aviatnetworks domains subscribed. If someone knows someone there they might > want to forward some of this list traffic. This could be a high profile fail > for them that is not their fault. > > From: Chuck McCown <> > Sent: Saturday, May 18, 2019 9:16 AM > To: AnimalFarm Microwave Users Group <> > Subject: Re: [AFMUG] Cambium > > I would like to see a comparison between the Cambium and Aviat radios. The > major complaint during the hearing was that Cambium was not providing > support. But when they said the Aviat was magic and did what Cambium could > not I really had some heartburn. And that was on the direct line, not the > passive link. > > They wrote a pretty big check with their mouth during the hearing and they > expect Aviat to cash it. By this time next week the magic Aviat will be > installed on that passive path and provide magic once again... > > Not sure how I am going to be able to get any feedback on this. I suppose > the lawyer that represents the customer can check with Frontier and see how > it is going. He is a friend of mine and will most likely tell me what > Frontier is saying. Of course they will say it is going well. I used to > know the techs at Moab, but I am sure they are going to say it is fixed even > if it fails miserably. > > The end user’s lack of dial tone will be telling. > > From: Ken Hohhof <> > Sent: Saturday, May 18, 2019 7:05 AM > To: 'AnimalFarm Microwave Users Group' <> > Subject: Re: [AFMUG] Cambium > > Seems like the radio is being used as a scapegoat. If it’s an RF path issue, > there’s only so much magic the electronics can do. Like a golfer blaming his > clubs for his bad score. I don’t suppose they explained what features or > specs of the Aviat radios are going to fix the problem, or do they even know > what the problem is? > > If they just need a few dB more fade margin, then yes, higher xmt power or > better rcv sensitivity or something like that could help. A little. Stuff > like 2048QAM or 4096QAM are going to increase the throughput under ideal > conditions and do nothing for performance under adverse conditions. And the > thing about fading is we’re talking huge dB numbers, which is hard to > overcome with antenna gain or system margin where just a couple dB is > difficult and expensive. > > Maybe this is what the future looks like with all this government funding and > accountability for meeting specs. If you screw up, start looking around for > a vendor to blame, and insist they take the equipment back because it was > bought with CAF money. > > Good points about the narrow beams and the use of a passive repeater. It > wouldn’t take much atmospheric effects or tower twist to affect the RF path. > > It’s also hard to believe they never had fading issues on the legacy > equipment. I remember working for a telecom equipment manufacturer in the > 80’s and common wisdom was you couldn’t submit any new equipment for telco > evaluation during summer or “the fading season” because it was all hands on > deck at the telcos to keep their long haul microwave links from dropping. I > don’t know what manual tweaking was involved, but apparently it was a big > issue. Just try binoculars on a long microwave path on a hot day and see > what the atmosphere does to the image of that distant tower. Now imagine > that’s a billboard and you have to make a bank shot off it. > > > From: AF <[email protected] <mailto:[email protected]>> On Behalf > Of [email protected] <mailto:[email protected]> > Sent: Friday, May 17, 2019 1:46 PM > To: [email protected] <mailto:[email protected]> > Subject: Re: [AFMUG] Cambium > > A motion was just made to revoke Frontier’s certificate if they cannot > achieve 99.99% uptime/availability with the new Aviat radio. > > Wow, 15’ dishes warp in the wind, towers twist. > > The beamwidth .35 degrees. > That is like a laser beam on this thing. > > If anyone with Aviat is listening, they need to give this deployment some > extra focus or tell Frontier that they may have a problem using 15’ antennas > and a passive repeater. > There are lots of people watching. > > They should also true up the license. > > From: <>[email protected] <mailto:[email protected]> > Sent: Friday, May 17, 2019 12:31 PM > To: <>[email protected] <mailto:[email protected]> > Subject: Re: [AFMUG] Cambium > > They should run a fiber up to the passive repeater location. Only 1 km. > > Or put an active repeater there. But again, this is Fronter. > > From: dave > Sent: Friday, May 17, 2019 12:27 PM > To: <>[email protected] <mailto:[email protected]> > Subject: Re: [AFMUG] Cambium > > yeah thats huge! > Why not do a spatial diversity to compensate for such a large dish for > distance? > I did a 71 mile shot with cambium sub 6Ghz using 4x 4' andrew dishes at each > end with very stable shots. > Of course real estate would be a factor. Diversity requires some spacing > between dishes. > I also converted an old microwave 12' dish for a tv station to spatial > diversity and been in operation for 8yrs. > > > > <image001.jpg> > On 5/17/19 1:20 PM, <>[email protected] <mailto:[email protected]> wrote: >> 4.6 Meter antennas. 15’ Wow. 48.3 dBi >> >> From: <>[email protected] <mailto:[email protected]> >> Sent: Friday, May 17, 2019 12:18 PM >> To: AnimalFarm Microwave Users Group >> Subject: Re: [AFMUG] Cambium >> >> Thanks >> Looks like Frontier did not update their license ... >> >> 11 Ghz Still shows Alcate MDR-8611-135 radio. >> >> 16 km on one side 1 km on the other side of the billboard. >> That seems to be the requirement for billboards, very short leg on one >> side. >> >> From: Cassidy B. Larson >> Sent: Friday, May 17, 2019 12:14 PM >> To: AnimalFarm Microwave Users Group >> Subject: Re: [AFMUG] Cambium >> >> Maybe this one? >> >> https://wireless2.fcc.gov/UlsApp/UlsSearch/licensePathsSum.jsp?pageNumToReturn=1&licKey=963392 >> >> <https://wireless2.fcc.gov/UlsApp/UlsSearch/licensePathsSum.jsp?pageNumToReturn=1&licKey=963392> >> >> Contact is Frontier.. >> >> >> >> >> -- >> ---- >> Cassidy B. Larson >> CTO - InfoWest, Inc. >> Voice: 435-773-6073 >> <>[email protected] <mailto:[email protected]> >> ---- >> >> >> >> >>> On May 17, 2019, at 12:03 PM, < <>[email protected] <mailto:[email protected]>> >>> < <>[email protected] <mailto:[email protected]>> wrote: >>> >>> Cambium is getting torn up at a Utah Public Service Commission hearing this >>> morning. >>> >>> Frontier installed a pair of Cambium something between Bald Mesa and Castle >>> Valley Utah in December to change out a TDM radio. >>> >>> Bad fading on Cambium. >>> >>> A resort ranch filed a complaint and I am listening to he hearing this >>> morning. Frontier is complaining that they got no support from Cambium. >>> The radios would work for 3 or 4 days and then troubles would come again >>> over and over. Frontier changed out the Cambium radio in March. >>> >>> They removed Cambium and said they have removed them as a vendor company >>> wide. >>> They changed to Aviat. Supposedly the new radios fixed everything. Typing >>> this as I am listening to the hearing. >>> >>> The ranch still had some problems after changing to Aviat. Frontier says >>> that the the new radios fixed everything. The new radio has not had any >>> drop outs. >>> >>> This is a two hop system. They are changing out cambium on the second leg >>> with Aviat soon. Passive repeater system on the second leg. Fog causes >>> fading. Drops modulation down to low QAM levels. Frontier claims the >>> second Aviat radio will make this network flawless. When asked what that >>> means Frontier answered 99.99% >>> >>> Frontier is in process to take action against Cambium. CAF money was used >>> to buy the Cambium radios. >>> Second leg is scheduled for commissioning next week. >>> >>> Someone should take a look at this license and tell me the details on that >>> passive repeater side. I am curious as to the leg distances. Too lazy to >>> look it up. Frontier Telephone Company or whatever they are called now. >>> Moab to Bald Mesa. Bald Mesa to Castle Valley. Passive on the second leg. >>> I am betting these are 6 GHz links with huge antennas. >>> >>> >>> >>> >>> -- >>> AF mailing list >>> <>[email protected] <mailto:[email protected]> >>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>> <http://af.afmug.com/mailman/listinfo/af_af.afmug.com> >> >> -- >> AF mailing list >> <>[email protected] <mailto:[email protected]> >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> <http://af.afmug.com/mailman/listinfo/af_af.afmug.com> >> >> > > -- > AF mailing list > <>[email protected] <mailto:[email protected]> > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > <http://af.afmug.com/mailman/listinfo/af_af.afmug.com> > > -- > AF mailing list > [email protected] <mailto:[email protected]> > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > <http://af.afmug.com/mailman/listinfo/af_af.afmug.com> > -- > AF mailing list > [email protected] <mailto:[email protected]> > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > <http://af.afmug.com/mailman/listinfo/af_af.afmug.com>
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