ROFL !..... 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: "Chuck McCown" <ch...@wbmfg.com> > To: af@afmug.com > Sent: Saturday, January 14, 2017 12:24:47 PM > Subject: Re: [AFMUG] Our UBNT AF11x experience > 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
