When they say it, it must be in fractured sentences.

Start a sentence, halt and insert two semi-germane but not sequitur commentary 
phrases, return to a related version of the initial sentence and launch into a 
new thought (usually containing an insult) before finishing.  

http://madlibs.shpg.org/trump?ref=webdesignernews.com

And I thought Bush’s grammar was bad.

From: Faisal Imtiaz 
Sent: Saturday, January 14, 2017 10:17 AM
To: af@afmug.com 
Subject: Re: [AFMUG] Our UBNT AF11x experience

You just voted to put a self promoting business man to the highest office of 
the land..
and  you are literally 'harping' on another business who is self promoting 
their product....

What gives .....

Maybe UBNT should be saying... "The AF11x is the best radio, As a matter of 
fact they only make the greatest Radios, and only they know how to make those 
radios.. Those are all phenomenal products,  very successful " ... Let's all  
"Make Broadband Great Again"

Would that help you in getting off their case ?

:)


Faisal Imtiaz
Snappy Internet & Telecom
7266 SW 48 Street
Miami, FL 33155
Tel: 305 663 5518 x 232

Help-desk: (305)663-5518 Option 2 or Email: supp...@snappytelecom.net


--------------------------------------------------------------------------------

  From: "Mike Hammett" <af...@ics-il.net>
  To: af@afmug.com
  Sent: Saturday, January 14, 2017 8:52:02 AM
  Subject: Re: [AFMUG] Our UBNT AF11x experience

  Sure, but don't claim you're better when you're not. There's nothing wrong 
with building a reasonable product for a great price if that's all you claim to 
be.




  -----
  Mike Hammett
  Intelligent Computing Solutions

  Midwest Internet Exchange

  The Brothers WISP






------------------------------------------------------------------------------

  From: "Ken Hohhof" <af...@kwisp.com>
  To: af@afmug.com
  Sent: Friday, January 13, 2017 10:44:49 PM
  Subject: Re: [AFMUG] Our UBNT AF11x experience


  Price

  Throughput

  System Margin

  Latency

  Build Quality

  Management

  Vendor Support



  It’s about the tradeoffs, and what you care about most.





  From: Af [mailto:af-boun...@afmug.com] On Behalf Of Mike Hammett
  Sent: Friday, January 13, 2017 10:15 PM
  To: af@afmug.com
  Subject: Re: [AFMUG] Our UBNT AF11x experience



  I love how Gary says they use so much better, newer technology...  but they 
get worse throughput.  *sigh*



  -----
  Mike Hammett
  Intelligent Computing Solutions

  Midwest Internet Exchange

  The Brothers WISP






------------------------------------------------------------------------------

  From: "Tim Hardy" <tha...@comsearch.com>
  To: af@afmug.com
  Sent: Friday, January 13, 2017 5:54:53 PM
  Subject: Re: [AFMUG] Our UBNT AF11x experience

  Post 6 here discusses the use of ARQ rather than FEC.

  https://community.ubnt.com/t5/airFiber/AF11x-Capacity/td-p/1737631 


------------------------------------------------------------------------------

  From: Af <af-boun...@afmug.com> on behalf of George Skorup <geo...@cbcast.com>
  Sent: Friday, January 13, 2017 6:41:10 PM
  To: af@afmug.com
  Subject: Re: [AFMUG] Our UBNT AF11x experience 



  Which I don't understand. Sounds like strong FEC?

  On 1/13/2017 5:36 PM, Ken Hohhof wrote:

    According to Link Planner, PTP820S (IP20S) gets around 243M at 256QAM, 347M 
at 2048QAM (350M with header compression).  So add that to George’s 
Trango/Exalt/SAF list.



    From: Af [mailto:af-boun...@afmug.com] On Behalf Of Chris Gustaf
    Sent: Friday, January 13, 2017 5:20 PM
    To: af@afmug.com
    Subject: Re: [AFMUG] Our UBNT AF11x experience



    Real usable capacity at Layer 2 Ethernet depends on several variables 
besides the modulation level and the regulatory bandwidth.  For 1024 QAM there 
are 10 bits per symbol so theoretically one would expect to get 400 Mbps in a 
40 MHz channel (10 bits x 40 MHz symbol rate).



    To actually make a radio that meets FCC spectrum masks, a reduction of the 
symbol rate down to around 35 MHz is required plus filtering, giving a max of 
350 Mbps over the air. 



    After that, Forward Error Correction (FEC) is required which is typically 
around 85-90 % for most microwave radios using LDPC, giving a net throughput of 
around 300 to 315 Mbps.  



    Add header compression at layer 2 which in the worst case for large packets 
adds about 2.5 % improvement and you get to around 325 Mbps, which is what 
Trango and others get on a single 40 MHz channel with the newest technology.



    Ubiquiti maybe using a lower FEC rate like 75-80% (or a lower symbol rate 
if the filtering is not steep enough) and no header compression, which would 
give them about 250 Mbps for large packets.



    Hope that helps!



    Chris Gustaf

    Trango Systems



    On Fri, Jan 13, 2017 at 2:39 PM, Mathew Howard <mhoward...@gmail.com> wrote:

      What other radios will only do 250Mbps (502.4Mbps capacity according to 
the data sheet...) on one 40mhz single polarity channel at 256qam? The other's 
I've looked at are typically around 300Mbps...

      Not that I'm saying the AF11 is a bad radio, I plan on putting up at 
least a few of them this year... but I find it a little funny that they use 
1024qam as a selling point, when it can't do as much throughput at 1024qam as 
other radios do at 256qam.



      On Fri, Jan 13, 2017 at 4:19 PM, Eric Kuhnke <eric.kuh...@gmail.com> 
wrote:

        I think this whole thread can be summed up that there's no magical way 
to get around the shannon limit and bps/Hz coding efficiency for a given 
channel size and modulation...   From the technical perspective of people who 
have to really understand the FDX capacity of a new PTP link, the ubnt 
marketing department is divorced from reality, it's not 1200 Mbps no matter how 
many slick PDFs they publish.

        One 40 MHz channel single polarity at 1024QAM 5/6 code rate is going to 
be nearly the same efficiency bps/Hz from many different manufacturers. 
Multiply as necessary for dual polarity or for larger channel sizes such as 60, 
80 or 112 MHz.



        On Fri, Jan 13, 2017 at 9:38 AM, Faisal Imtiaz 
<fai...@snappytelecom.net> wrote:

          FYI... on a "single"  40mhz channel 'dual polarity' (mimo) the 
expected throughput on Af11x is 500meg duplex.



          Faisal Imtiaz
          Snappy Internet & Telecom
          7266 SW 48 Street
          Miami, FL 33155
          Tel: 305 663 5518 x 232

          Help-desk: (305)663-5518 Option 2 or Email: supp...@snappytelecom.net




----------------------------------------------------------------------

            From: "Josh Baird" <joshba...@gmail.com>
            To: af@afmug.com
            Sent: Friday, January 13, 2017 10:30:10 AM


            Subject: Re: [AFMUG] Our UBNT AF11x experience

            But if I can get 80mhz channels in both polarities (running at 
56Mhz/1024QAM with this radio), I should be able to at least double he capacity 
of my PTP-800 link which can do 228Mbps.  Right?



            On Thu, Jan 12, 2017 at 5:55 PM, Mike Hammett <af...@ics-il.net> 
wrote:

              At 40 MHz and a single polarity, you're looking at an almost 
insignificant increase in throughput.

              Their claim is 1.2 gb+.
              Cut that in half as they're advertising the aggregate, so 600 mb+.
              That's using both polarities, so now only 300 mb+.
              Only I haven't heard of anyone getting much more than 500 in a 
single direction (they may certainly exist, I just haven't seen them), so now 
that 300 is really only 250.


              Not much of an upgrade unless you can also get larger channels in 
both polarities.



              -----
              Mike Hammett
              Intelligent Computing Solutions

              Midwest Internet Exchange

              The Brothers WISP









------------------------------------------------------------------



              From: "Josh Baird" <joshba...@gmail.com>
              To: af@afmug.com
              Sent: Thursday, January 12, 2017 11:47:42 AM
              Subject: Re: [AFMUG] Our UBNT AF11x experience

              This PTP800 is only capable of running at 40Mhz (ODU-A) so it can 
only do 228Mbps full-duplex.  The AF11x should be able to do much more than 
that, right?



              On Thu, Jan 12, 2017 at 12:05 PM, Gino Villarini 
<g...@aeronetpr.com> wrote:

                IIRC, PTP800 is Remec Style, you'll need Remec to N connector 
adapters (AF11x is N)



                What do you expect to achieve with this upgrade?  Not much 
capacity  difference between PTP800 and AF11x, maybe 50-80- mbps more.  Only if 
you have a xpic license you can double your throughput with the af11x



                From: Af <af-boun...@afmug.com> on behalf of Josh Baird 
<joshba...@gmail.com>
                Reply-To: "af@afmug.com" <af@afmug.com>
                Date: Thursday, January 12, 2017 at 9:12 AM
                To: "af@afmug.com" <af@afmug.com>
                Subject: Re: [AFMUG] Our UBNT AF11x experience



                Good news - thanks for sharing.



                Somewhat un-related question:



                I have a PTP-800 link using these dishes:



                
http://www.hol4g.com/AC/product.aspx?number=ANC-VHLP3-11W-RR1&p=237127&sc=0



                Do you know if I can re-use these dishes with the AF11x?  Do I 
need adapters?



                Josh







                      Gino Villarini
                     
                      President
                     
                      Metro Office Park #18 Suite 304 Guaynabo, Puerto Rico 
00968
                     





                On Thu, Jan 12, 2017 at 8:07 AM, Gino Villarini 
<g...@aeronetpr.com> wrote:

                  Hey all, just dropping by to share our experience with AF11x, 
we habe been beta testing the unit since Sept and for the last 3 months, the 
unit has been rock solid.   



                  We are very happy with its performance, just wished it had a 
SFP port! 



                  This unit replaced a Mimosa B11 unit that we were having some 
intermitent throughtput issues, 



                  The swap was easy since we reused the Jirous Dishes and only 
had to add the af11x adapters to it, 



                  The link  went live on 9/21/16 and on the first weeks we 
experienced some lockups, but after a revised beta fw was applied, all issues 
went away. 



                  For UBNT, please add SFP port and continue the good work 
towards a af6x and af18x





                        Gino Villarini
                       
                        President
                       
                        Metro Office Park #18 Suite 304 Guaynabo, Puerto Rico 
00968
                       
























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