When I talked to KP today they seem to think that because they were side by 
side the side lobe of the antenna was being infringed on. 

 

From: Af [mailto:[email protected]] On Behalf Of George Skorup
Sent: Wednesday, March 01, 2017 9:14 PM
To: [email protected]
Subject: Re: [AFMUG] ePMP 2.4 two aps pointing at the same location.

 

The only other thing I could think is to try playing with the front sector / 
back sector thing. That's part of the Cambium wifi TDD sync secret sauce. I 
have no idea what that does exactly, and I could be completely wrong, but a 
SWAG would be something along the lines of transmit frame spreading on Canopy. 
That sort of randomizes the AP beacon frame so SMs have a better chance of 
hearing it in a noisy environment, or in the FSK world, so beacon frames from 
multiple APs don't clobber each other.

On 3/1/2017 8:57 PM, Brandon Yuchasz wrote:

Yes both GPS synced. 

 

 

From: Af [mailto:[email protected]] On Behalf Of Mathew Howard
Sent: Wednesday, March 01, 2017 8:46 PM
To: af
Subject: Re: [AFMUG] ePMP 2.4 two aps pointing at the same location.

 

I assume these APs are already synced?

If it's possible to get some of them onto 5ghz, that would be the way to go... 
otherwise, I'd say a 40mhz channel on one AP is worth a try.

 

On Wed, Mar 1, 2017 at 7:58 PM, George Skorup <[email protected]> wrote:

It isn't too hard to overload the front-end in the ePMP 1k. Just like the 
RocketM. I really doubt they're going to do a 2.4 ePMP 2000.

Can you try a 40MHz channel on one of the 2.4 APs and shut the other one off? I 
don't know your setup and terrain, but I would try an ePMP 2k and off-load the 
customers with good LOS.

On 3/1/2017 7:37 PM, Brandon Yuchasz wrote:

So we have a site where all of the customers are south of the tower and we have 
a 2.4 120 degree KP Performance antenna and ePMP AP pointing at those 
customers. We have put a lot of SMs onto the AP and before it gets to congested 
we wanted to add an additional AP. It turns out most of the customers are 
covered by a 90 degree sector so we put up a second 90 degree sector( again KP 
) �on 2.4. I think where we screwed up is we installed this new sector with 3 
feet of horizontal separating from the other sector and no vertical separation. 
( they are side by side pointed in the same direction)

�

When we fired it up the SMs on the other AP started to re reg.� I have placed 
one of the APs at the top of the band on 20 mhz and the other on the bottom on 
20 mhz. Its better but they still drop and register over and over.

�

�

So my question is. Has anyone put two 2.4 sectors on the same tower pointing 
the same direction successfully? How much vertical separation did you use? I am 
assuming vertical is going to be better than what I did.

�

How much of a guard band did you use?

�

The 120 degree sector is older so it doesn�t have the same shielding on top 
and bottom as the newer 90 degree KP sector. Just FYI.

�

Thanks,

Brandon

�

�

�

�

 

 

 

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