Yeah, the first wave was the people expecting Ubiquiti 3.65 GHz to work 
miracles through trees.  All that did was create interference and force the 
WiMAX and LTE people to use the upper part of the band where the UBNT stuff was 
not approved to operate.  At least AFAIK Redline never pitched its AN-80i, one 
of the first 3.65 GHz products, for NLOS applications, even though I believe it 
was based on a proprietary WiMAX implementation.

Somehow people just have it in their head that anything in that band is a NLOS 
product.

I think it’s like seeing a red Ferrari screaming down the highway, and drawing 
the conclusion that all red vehicles are sports cars, so you buy a red F150 
pickup.  And then being disappointed at its speed and handling, while missing 
that it can carry cargo and haul a trailer.  But it’s red!


From: Patrick Leary 
Sent: Sunday, October 25, 2015 2:50 PM
To: af@afmug.com 
Subject: Re: [AFMUG] Cambium 450SM 3.65 connectorized antenna options

It doesn’t mean “NLOS” inherently. It’s all about the gear that enables NLOS, 
as Sean just mentioned. 

 

Patrick Leary, Telrad

727-501-3735

 

From: Af [mailto:af-boun...@afmug.com] On Behalf Of Ken Hohhof
Sent: Sunday, October 25, 2015 1:46 PM
To: af@afmug.com
Subject: Re: [AFMUG] Cambium 450SM 3.65 connectorized antenna options

 

I still do not understand why 3.65 GHz = NLOS.

 

We are using it very successfully for LOS.  That does mean however that anyone 
who comes into this area expecting –110 noise floors will probably be 
disappointed.  Things should be better however once 3550-3650 and PALs become 
available.

 

Same as in any other band, trees close to the subscriber seem to be the worst.  
And here in the midwest, that’s where a lot of the trees are.  Miles of 
cropland, and then 3 rows of trees next to the house.

 

 

From: George Skorup 

Sent: Sunday, October 25, 2015 12:22 PM

To: af@afmug.com 

Subject: Re: [AFMUG] Cambium 450SM 3.65 connectorized antenna options

 

I put my house on 3.6 450. SM+reflector 40' up my tower. One very large maple 
tree about 100 feet away directly in the path. The AP is almost exactly a mile 
away at 230 feet on a regular Cambium "90" degree sector. I have about -57dBm. 
I get about -65dBm when the tree is wet. I get 8X/8X in both cases. Uplink 
might drop to 6X sometimes. Bare SM only got about -72 and I said screw that.

On 10/25/2015 10:50 AM, Sean Heskett wrote:

  We have telrad lte on a few towers, and we did a side by side comparison with 
telrad and canopy.  

   

  Cambium 450 3.65ghz can go thru a tree or two at close range (less than 1 
mile).  But it only modulates at 1x mimo-a

   

  Telrad lte is able to blast thru a thicket of trees no problem.

   

  We've been decommissioning our 450 3.65ghz and replacing with telrad.

   

  2cents

   

  -Sean



  On Sunday, October 25, 2015, Adam Moffett <dmmoff...@gmail.com> wrote:

    Sean,

    You have the Compact wimax right?  I'm curious how you'd rate that side by 
side with the PMP450 in 3.65.

    Cambium sales said the Compact would give you better NLOS, but where the 
450 connected it would be faster.  Would you say that was accurate?

    Thanks,
    Adam





      Nothing really.  We tried a few and found either a bare SM or SM+dish was 
the best solution.  Everything else was a PITA because the pig tails that come 
with the SM are too short, so you either need to do surgery and replace the 
cables or put the SM in an odd location/orientation to get it connected (if you 
can find one) 

       

      2cents

       

      -Sean



      On Sunday, October 25, 2015, Paul McCall <pa...@pdmnet.net> wrote:

        What has been found as a successful option for attaching to the 
connectorized 3.65 SMs? 

        Paul, PDMNet

     

 





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