Your duplexers seem incorrect form this post. It should be 2-4, 4-2 and 4-2,2-4 
or 1-3, 3-1 and 3-1,1-3 for the TX and RX to work correctly 

From: "Ethan E. Dee" <e...@globalvision.net> 
To: "Ubiquiti Users Group" <ubnt_users@wispa.org> 
Sent: Friday, July 7, 2017 2:33:29 PM 
Subject: Re: [Ubnt_users] AirFiber 11FX - No Wireless Connection 

Just a thought, and I have no experience with the AF11x. 
Once I had two AF24's that wouldn't link. It was because the tx was on the same 
frequency on both and the rx was the same frequency on both and they had to be 
flip flopped. We spent alot of money trying other equipment thinking ours was 
just bad and turned out to be that simple. 
Just thought I'd throw it out there. 

On 07/07/2017 04:18 PM, Joey Craig wrote: 



Before I contact UBNT support, I thought I would try here first. I have had t 
our tower climbers here twice to install and aim these. Very frustrated. Maybe 
someone else has had this issue. 

Had a Nera 11GHz radio struck by lightning last December and replacement parts 
were no longer available. The head of the company decided to try the New AF11FX 
link. 

For some reason, we are not able to get them to connect to each other when on 
the towers, but I did have them wireless connected and passing the maximum 
throughput on the bench without any issues. 

We have a good tower crew so I do believe them that they tried everything. 
Myself and another tech from the company were on each end at the time and did 
not see any change in rssi during the aiming process. 

We do have a backup link using the AF5X radios with the 34dB/4ft antennas which 
are mounted 10 ft under the 11GHz link at each end so we do have a reputable 
point of reference to aim the new dishes. 

I just logged into each end and used the Airview program on the AF11FX radios 
and I am not showing any frequency usage at all and the noise level at each end 
is running at -92 as seen in the dashboard and corresponding with the Airview. 

We are using the high-band radios with the Jirous-1200-10/11 antennas and the 
adapter radio mounting plates. I have verified the duplexers are the opposite 
on each end as the instructions specify. (radio #1 2/4-4/2 and radios #2 
4/2-2/4). The TX and RX frequencies are opposite on both ends of the link. 

I have the cfg and sup files from both radios if anyone would care to look at 
them. 

It just appears that neither of the radios are transmitting once mounted on the 
towers. 

-- 
Joey Craig 
Network/RF Engineer 
[ http://www.firenet1.com/ | Firenet1.Com ] 
Phone: (662) 510-0764 
Mobile: (662) 404-1118 



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-- 
Ethan Dee 
Network Admin 
Globalvision 
864 704 3600 
[ mailto:e...@globalvision.net | e...@globalvision.net ] 

For Support: 
[ mailto:gv-supp...@globalvision.net | gv-supp...@globalvision.net ] 
864 467 1333 

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864 467 1333 

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