Well I just deployed my first Cambium (rebranded Ceragon) and the support
that I received was better than any support that I have ever received from
an equipment manufacturer. They spend literally 3 hours and 20 minutes on
the phone with me setting up the link.
On Sat, May 18, 2019 at 11:45 AM Bill Prince <part15...@gmail.com> wrote:
> I have not read an y of the backup material, but are the "Cambium" radios
> actually the re-badged Ceregon radios?
>
>
> bp
> <part15sbs{at}gmail{dot}com>
>
>
> On 5/18/2019 8:16 AM, Chuck McCown wrote:
>
> 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 <af-boun...@af.afmug.com> <af-boun...@af.afmug.com> *On Behalf
> Of *ch...@wbmfg.com
> *Sent:* Friday, May 17, 2019 1:46 PM
> *To:* af@af.afmug.com
> *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:* ch...@wbmfg.com
>
> *Sent:* Friday, May 17, 2019 12:31 PM
>
> *To:* af@af.afmug.com
>
> *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:* af@af.afmug.com
>
> *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.
>
>
> On 5/17/19 1:20 PM, ch...@wbmfg.com wrote:
>
> 4.6 Meter antennas. 15’ Wow. 48.3 dBi
>
>
>
> *From:* ch...@wbmfg.com
>
> *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
>
>
>
> Contact is Frontier..
>
>
>
>
>
>
>
> --
> ----
> Cassidy B. Larson
> CTO - InfoWest, Inc.
> Voice: 435-773-6073
> c...@infowest.com
> ----
>
>
>
>
> On May 17, 2019, at 12:03 PM, <ch...@wbmfg.com> <ch...@wbmfg.com> 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.
>
>
>
>
>
>
>
>
>
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