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Established Member
Posts: 1,888
Registered: ‎06-18-2010
Kudos: 329
Solutions: 5

AF11: Issues keeping 10X Modulation

[ Edited ]

Hello,

 

We have had a heck of a time getting this link to stay at 10X.  We have scoped both ends, from what we are seeing when scoping the link, this thing is as close as they come.  

 

What is strange is this.  So running a 56MHz wide channel seems out of the question, the link won't modulate above 6X.  Running a 50MHz channel seems pretty rock solid.  (see attachment)

 

Then, I make a simple name change and the link goes to crap on one side.  (see attachment)

 

So I reboot the radios, and boom, back to normal....

 

Shouldn't we pretty much be rock solid at a 10X modulation?  I can't believe this to be an aligment issue.  We are running Jirous 680 antennas on both sides.

 

Thoughts?

50MHz wide channel.png
AirFiber Name change.png
Signal After reboot.png
SuperUser
Posts: 14,072
Registered: ‎02-03-2013
Kudos: 7575
Solutions: 562
Contributions: 2

Re: AF11: Issues keeping 10X Modulation

Your conducted needs to be within 17 to 19 dB.  Yours is crazy too high. 

ubiquiti certified trainer :: ubwa | uewa
Established Member
Posts: 1,888
Registered: ‎06-18-2010
Kudos: 329
Solutions: 5

Re: AF11: Issues keeping 10X Modulation


ClaudeSS wrote:

Your conducted needs to be within 17 to 19 dB.  Yours is crazy too high. 


Thanks for pointing that out.  Got that fixed, link is really stable now.  Still can't really run a 56MHz channel.  One side will be 670Mbps and the other 560Mbps.

 

Most Stable.png
SuperUser
Posts: 14,072
Registered: ‎02-03-2013
Kudos: 7575
Solutions: 562
Contributions: 2

Re: AF11: Issues keeping 10X Modulation

Wider channels require better signal.

 

 

You're aim is about 10 db off.   The 36 dB dishes require intense aiming.

 

You need to very carefully and very slowly aim and peak the signal both horizontally and vertically. You are seriously off of a good aim with this link. 

ubiquiti certified trainer :: ubwa | uewa
Established Member
Posts: 1,888
Registered: ‎06-18-2010
Kudos: 329
Solutions: 5

Re: AF11: Issues keeping 10X Modulation


ClaudeSS wrote:

Wider channels require better signal.

 

 

You're aim is about 10 db off.   The 36 dB dishes require intense aiming.

 

You need to very carefully and very slowly aim and peak the signal both horizontally and vertically. You are seriously off of a good aim with this link. 


@ClaudeSS

We will revisit the aim.  I am guessing since our conductive power was so high, visually aiming based off of signal was where we went wrong?

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