Just going by the spec sheet, that sector is 120 degrees at the 6 dB points 
(109 degrees HPOL).  Plus it is V/H not dual slant.  Plus there is no F/B spec.

If you already have one on the tower, it makes sense to try and use it.  But 
for a new installation, is the difference between 90 and 109 degrees enough to 
worry about?  Or maybe ring up KPP and see if they have something in the 
pipeline that would be 120 degrees at 3 dB, dual slant, good F/B, and maybe 
even with N connectors and a mounting bracket for the 450i AP?


From: Wireless Administrator 
Sent: Thursday, January 07, 2016 2:01 PM
To: af@afmug.com 
Subject: Re: [AFMUG] Ubiquiti 120 Degree 900MHz MIMO 13dBi (AM-9M13-120)

I’m with you on that.  I spent about 2 weeks in denial before I finally gave 
up.  Maybe someone else here will comment on possibilities.

 

Steve

 

From: Af [mailto:af-boun...@afmug.com] On Behalf Of Mathew Howard
Sent: Thursday, January 07, 2016 2:45 PM
To: af
Subject: Re: [AFMUG] Ubiquiti 120 Degree 900MHz MIMO 13dBi (AM-9M13-120)

 

Interesting, I don't have anything to compare the sector we have to (there 
hasn't ever been any other 900mhz on the tower), and the clients are all NLOS, 
so calculations aren't useful, so I can't say that ours is actually working as 
well as it should... but there's no reason why it should work any differently 
with a Canopy radio attached to it than it does with a UBNT radio (unless 
there's a problem with the adapter, of course).

 

On Thu, Jan 7, 2016 at 1:12 PM, Wireless Administrator <wirel...@htn.net> wrote:

Calculated levels and comparison to integrated AP performance.  All three 
sectors had the same issues.  We tried every possible combination even slant 
holding stinger on a 45deg angle.  I was just hoping to hear from someone who 
could explain why or perhaps from someone who got it working.

 

Steve

 

From: Af [mailto:af-boun...@afmug.com] On Behalf Of Mathew Howard
Sent: Thursday, January 07, 2016 1:57 PM
To: af
Subject: Re: [AFMUG] Ubiquiti 120 Degree 900MHz MIMO 13dBi (AM-9M13-120)

 

6db off compared to what? another sector, or calculated signal levels?

I'm a little concerned about using V/H as well, which is why I opted to go with 
a Cambium sector for our first AP, rather than doing this project now. 
Apparently it does work to mix V/H and slant antennas with PMP450 - Cambium 
confirmed that is the case with 3.65 (the new high gain SM is V/H and the 
sectors are slant), so I'm assuming it will work fine with the 900mhz 450i as 
well... and the Cambium dual slant yagis can easily be converted to V/H as 
well... whether or not it will work as well as slant, probably largely depends 
on the environment it's deployed in.

 

On Thu, Jan 7, 2016 at 10:45 AM, Wireless Administrator <wirel...@htn.net> 
wrote:

Mathew,

 

We tried PMP100 and even with one sector and one AP performance was 6db  off 
the expected level.

 

We haven’t implemented 450i-900 yet but would be concerned about V/H vs Dual 
Slant.

 

Steve

 

 

From: Af [mailto:af-boun...@afmug.com] On Behalf Of Mathew Howard
Sent: Thursday, January 07, 2016 10:45 AM
To: af
Subject: Re: [AFMUG] Ubiquiti 120 Degree 900MHz MIMO 13dBi (AM-9M13-120)

 

I don't see any reason why it wouldn't work with either setup. If there are 
multiple sectors on a tower, you may run into some issues doing frequency 
re-use, since I don't think the F/B ratio is as good as the Cambium sectors, 
but if you're talking about a single sector, I don't see that there would be 
any issues. 

I am actually planning to upgrade the Ubiquiti 900mhz sector we have to a 450i 
this spring, and re-use the UBNT antenna. 

 

On Thu, Jan 7, 2016 at 9:08 AM, Wireless Administrator <wirel...@htn.net> wrote:

Does anyone have experience trying to use the following antenna with Cambium 
access points?

 

Ubiquiti 120 Degree 900MHz MIMO 13dBi (AM-9M13-120)

 

Would it work with either a pair of PMP100 AP’s to provide v/h coverage or with 
the new 450 gear in a V/H implementation?

 

Thanks,

Steve

 

 

 

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