My channel list does nothing.
The AC radio will still choose any (seemingly) random channel and sometimes it grabs a noisy one and throws everything off. Or cuts throughput in half or worse. DFS timers will cut on for 15 minutes sometimes based on what it picks. And the whole thing is a mess. Just confusing. And now I see spectrum is using the DFS band and if your saying that the radio doesn't know the difference between real DFS issues and noise then we are in trouble as we are in the top of a 30 story building and everyone has their own charter equipment and they are loud and proud.

On 10/20/2016 3:21 PM, James Craig via Ubnt_users wrote:
Hi Alex,

You should have the option to limit the channel list under Wireless -> Control Frequency List.

We are working on some features to help reduce false hits further and improve channel selection on a hit.

On Thu, Oct 20, 2016 at 3:11 PM, alex phillips <[email protected] <mailto:[email protected]>> wrote:

    To say its a Sham, may be a little harsh.

    OS8 does a better job at the issue however essentially if a
    PrismAC radio sees activity on the DFS channel  you are on that is
    not part of its session list, it runs away and goes to another
    channel.

    I think its physically impossible for these class of radio systems
    to actually detect the difference between Radar and just Signal on
    that band.

    I have had these discussions with UBNT, as well as others who use
    other radio products and I think false detect is a common problem
    on all platforms, not just UBNT.

    The FAA really threw a fit about this issue and the FCC made this
    a very strict certification requirement and so this is all that
    can be done.  Even AF5 has this issue.

    We are going to start running a script that checks the radio ever
10 mins and if the freq has changed its going to change it back. I guess if there is a war going on between dfs logic and our
    logic, this may not work.

    I also wonder if the channel list can be limited.  I don't see it
    in the UI.  Perhaps UBNT folks listening can lend a hand here.



    /*Alex Phillips*/
    CEO and General Manager
    RBNS.net
    HighSpeedLink.net
    *WISPA.org Board of Directors ** (2011-2017)*
    *WISPA President (2015-2017)*
    *540-908-3993 <tel:540-908-3993>*

    On Thu, Oct 20, 2016 at 2:37 PM, James Craig via Ubnt_users
    <[email protected] <mailto:[email protected]>> wrote:

        Hi Guys,

        airMAX radios should only jump to another channel if a RADAR
        hit is detected.  I would suggest running a Frequency list
        when operating in DFS bands.

        That being said, this is most like related to a bug fixed in
        airOS8beta16.


        Ethan / Matthew:  Could you forward the Support Info file from
        an AP that has recently seen this?

        [email protected] <mailto:[email protected]>





        On Thu, Oct 20, 2016 at 1:38 PM, Ethan E. Dee
        <[email protected] <mailto:[email protected]>> wrote:

            On the rockets, you choose a DFS channely and it sticks,
            that is what I'm used to.
            Can't replicate that on the rocket ac's


            On 10/20/2016 1:35 PM, Jordan de Geus wrote:
            Isn't DFS supposed to channel hop?

            Have you tried blocking the higher noise frequencies to
            prevent the use of those specific channels?

            On Thu, Oct 20, 2016 at 10:33 AM, Matthew Brendle
            <[email protected]
            <mailto:[email protected]>> wrote:

                I have a 5AC PRISM doing the same thing.  I manually
                pick a DFS channel on
                the wireless tab and the radio will go to a non-DFS
                channel.  Does not
                matter which DFS channel I pick, it will go to a
                non-DFS channel to operate.
                It will let me manually pick a non-DFS channel and it
                will stay on it.  Not
                auto, no freq list...

                Matt B.

                -----Original Message-----
                From: [email protected]
                <mailto:[email protected]>
                [mailto:[email protected]
                <mailto:[email protected]>] On
                Behalf Of Ethan E. Dee
                Sent: Thursday, October 20, 2016 1:31 PM
                To: Ubiquiti Users Group <[email protected]
                <mailto:[email protected]>>
                Subject: Re: [Ubnt_users] DFS on AC

                No, not confusing them.
                Complaining about both.
                DFS channel selection has a mind of it's own. With or
                without a frequency
                list.
                And auto, does not pick the best channel, or anywhere
                close.

                On 10/20/2016 1:27 PM, Matt Hoppes wrote:
                > It sounds like you're confusing DFS and auto
                channel selection. Which is
                your question about?
                >
                >> On Oct 20, 2016, at 13:13, Ethan E. Dee
                <[email protected]
                <mailto:[email protected]>> wrote:
                >>
                >> So DFS on the AC lites is basically a sham from
                what I can tell.
                >>
                >> I pick a dfs channel and the rocket picks it's own
                channel. Usually a
                >> channel with much higher noise/interference.
                >>
                >> I use the frequency list and it does me no good.
                >>
                >> In addition, I have lot's of frequencies that are
                in the -90's for
                >> noise and 'auto' picks channels in the -75 to -85.
                I don't understand
                >> the channel selection for these at all.
                >>
                >> Any thoughts?
                >>
                >> --
                >> Ethan Dee
                >> Network Admin
                >> Globalvision
                >> 864 704 3600 <tel:864%20704%203600>
                >> [email protected] <mailto:[email protected]>
                >>
                >> [email protected]
                <mailto:[email protected]>
                >> 864 467 1333 <tel:864%20467%201333>
                >>
                >>
                >>
                >> --
                >> This message has been scanned by E.F.A. Project
                and is believed to be
                clean.
                >>
                >>
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                --
                Ethan Dee
                Network Admin
                Globalvision
                864 704 3600 <tel:864%20704%203600>
                [email protected] <mailto:[email protected]>

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-- Ethan Dee
            Network Admin
            Globalvision
            864 704 3600 <tel:864%20704%203600>
            [email protected] <mailto:[email protected]>

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