AF11: Issues keeping 10X Modulation


  • W
    Beta - mFi

    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


  • C
    Super Users

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


  • W
    Beta - mFi

    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


  • C
    Super Users

    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.


  • W
    Beta - mFi

    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.


    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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