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New Member
Posts: 8
Registered: ‎12-10-2015

AF24HD Tweak via SRMC

Finished buiding a Wireless Backhaul to replace AT&T link for 3 remote family health clinics. Link is hitting 1gb full-duplex.

Need additional assistance in alignment.

 

Height: 10m

8x (256QAM MIMO)

Issue: Link should be hitting more than 1gig full duplex.

AP Antenna Output: 28dBm

TX: 24.1GHz

RX: 24.2GHz

Elevation: pending update

azimuth: pending update

 

Height: 4m

8x (256QAM MIMO)

Station Antenna Output: 28dBm

TX: 24.2GHz

RX: 24.1GHz

Elevation: 0 degress (will update)

Azimuth: -4 degrees (will update )

Wireless Tab ScreenShot.pngWireless Tab

 

Screen Shot 2018-07-04 at 11.15.20 AM (2).pngStation Side DashboardWireless Tab ScreenShot.pngWireless Tab

 

 

Screen Shot 2018-07-04 at 11.15.23 AM (2).pngStation Side Dasboard Bottom 

 


Screen Shot 2018-07-04 at 11.22.50 AM (2).pngMaster AP Dashboard

 

 

 

Screen Shot 2018-07-04 at 11.22.52 AM (2).pngMaster AP Dashboard Bottom

 

 

 

{"location":{"title":"701 Farringdom St, Lumberton, NC 28358, USA","placeId":"ChIJ1RcWPJXgqokRkjKWe9GIpuQ"},"addedProducts":[{"id":"airfiber-24hd","count":2}],"solved":"","numbers":"","description":"","mainImage":"164160i8328172400A6B63A"}

Ubiquiti Employee
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Registered: ‎02-13-2017
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Re: AF24HD Tweak via SRMC

Post installation pictures as well. This is either alignment or some kind of slight obstruction.

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New Member
Posts: 8
Registered: ‎12-10-2015

Re: AF24HD Tweak via SRMC

 

Main AP (link is 1022mpbs now)

-47 dBm signal

0 degress Elev

-5 degres Azuithm

 

Slave Station (Raised the antenne another 2 feet but now link on Station side is 996mbps)

-53 dBm signal

+1 degress Elev

+2 degres Azuithm

 

mainAF24Back.jpgMainAP BackViewmainAF24SeeWH.jpgMainAP Side See WHslaveAF24Back.jpgSlave Back ViewslaveAF24BackView.jpgSlaveStation Back See MainslaveAF24SeeMainAP.jpgSlave Back View See APslaveSideView.jpgSlave Side View

New Member
Posts: 8
Registered: ‎12-10-2015

Re: AF24HD Tweak via SRMC

Chain imbalance statisitics Screen Shot 2018-07-05 at 1.50.47 PM.pngChain Imbalance Stats

Ubiquiti Employee
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Re: AF24HD Tweak via SRMC

Can you move the devices closer to the edge of the roof?

Take a look at this document. It was written for the AF5 but applies to the AF24 as well.

http://dl.ubnt.com/guides/airfiber/airFiber_AF5_AF5U_DG.pdf

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Ubiquiti Employee
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Re: AF24HD Tweak via SRMC

That mount looks awefully low to provide Fresnel clearance as it seems to pass very close to a number of building roofs...

 

 

New Member
Posts: 8
Registered: ‎12-10-2015

Re: AF24HD Tweak via SRMC

[ Edited ]

We are currently working to move the antennas higher on both sides.

Will update after moving antennas.

 

Based on a fresnal calculator my results are:

0.1977273 mile signal

24GHz band

Screen Shot 2018-07-07 at 12.33.33 AM.pngFresnal Calculator

New Member
Posts: 8
Registered: ‎12-10-2015

Re: AF24HD Tweak via SRMC

 

See Elevated Pictue for Master Antenna

 

IMG_1093.JPGMain Ap Back Elevated

New Member
Posts: 8
Registered: ‎12-10-2015

Re: AF24HD Tweak via SRMC

Front of Master Antenna Elevated.

 

IMG_1094.JPGMain Ap Front Elevated

 

Dashboard since antenna has been elevated.

Screen Shot 2018-07-11 at 4.13.55 PM.pngNew Dashboard

 

 

New Member
Posts: 8
Registered: ‎12-10-2015

Re: AF24HD Tweak via SRMC

Could you help me in understanding whether Chain 0 is horizontal / Chain 1 is vertical or the other way around.

We've adjusted on antenna Slave and signal decreases then adjust on antenna Master and it decreases.

 

We have elevated the slave antenna by 3m and it decreased the gain to 998mpbs for the master.

Ubiquiti Employee
Posts: 2,638
Registered: ‎06-21-2012
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Solutions: 157

Re: AF24HD Tweak via SRMC

They are slant polarization (not vertical and horizontal). I am at a loss as to why you are losing so much signal unless you are aimed to get the signal as a bounce off of an intermediate rooftop...

 

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