You can reduce self interference with GPS. So with limited spectrum you can optimize it with ABAB. If you need to use adjacent channels on your APs GPS Sync reduces the problems.
Your own radios are close together so you see them at much higher levels then your competitors radios. Your backhauls point at your towers exactly. For sure in congested areas licensed is the way to go for backhaul. Von: Af [mailto:af-boun...@afmug.com] Im Auftrag von Josh Reynolds Gesendet: Sonntag, 19. April 2015 08:54 An: af@afmug.com Betreff: Re: [AFMUG] Very interesting post.. You're not. Explain to me how single player GPS sync helps in a mixed environment of various vendors when your equipment is in the beamwidth many other competitors and your radios suck in the presence of adjacent channel noise? It doesn't. It doesn't at all. Notch filters would help those radios in that scenario, but it's not really practical unless you just like to climb towers for kicks. Josh Reynolds CIO, SPITwSPOTS www.spitwspots.com <http://www.spitwspots.com> On 04/18/2015 08:19 PM, Mike Hammett wrote: You may not need the benefits, but it doesn't mean I'm not correct. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com <https://www.facebook.com/ICSIL> <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> <https://www.linkedin.com/company/intelligent-computing-solutions> <https://twitter.com/ICSIL> _____ From: "Jaime Solorza" <mailto:losguyswirel...@gmail.com> <losguyswirel...@gmail.com> To: "Animal Farm" <mailto:af@afmug.com> <af@afmug.com> Sent: Saturday, April 18, 2015 11:15:53 PM Subject: Re: [AFMUG] Very interesting post.. Nope. Having great success with no sync using Ubiquiti radios. Now with new channels even better. Just like Mesh. Not ready for prime time on my TV... Jaime Solorza On Apr 18, 2015 10:11 PM, "Mike Hammett" <af...@ics-il.net <mailto:af...@ics-il.net> > wrote: The more competitors, the *MORE* you need sync. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com <https://www.facebook.com/ICSIL> <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> <https://www.linkedin.com/company/intelligent-computing-solutions> <https://twitter.com/ICSIL> _____ From: "Josh Reynolds" <j...@spitwspots.com <mailto:j...@spitwspots.com> > To: af@afmug.com <mailto:af@afmug.com> , "Mathew Howard" <mhoward...@gmail.com <mailto:mhoward...@gmail.com> > Sent: Saturday, April 18, 2015 8:51:00 PM Subject: Re: [AFMUG] Very interesting post.. AF absolutely has sync? As far as AirMaxAC, sure, no sync.. At this time. In the end though, there are a lot of operators that simply don't care about sync. Eventually in many markets it will come to a point when you simply run out of clean frequency, ie: using one or two or three per tower won't cut it, due to competitors, cell offload, etc. In that scenario where GPS sync is virtually useless (because you're picking the best freq per direction), its pretty obvious that there are a few radios that would currently excel in that scenario. There are many places where we are, for instance, where multiple competitors, city and state links, federal, etc have towers less than a mile from us. Having the ability to "shrug off" that adjacent and co channel noise is critical for us. On April 18, 2015 4:52:38 PM AKDT, Mathew Howard <mhoward...@gmail.com <mailto:mhoward...@gmail.com> > wrote: This test ignores a few kind of important details... the UBNT and Mikrotik AC radios have no ability to sync, which gives them a significant disadvantage. also, the Mimosa radios are (theoretically) capable of higher throughput since they are the only ones with the ability to use two 80mhz channels... granted, it's pretty rare that is actually possible in the real world, but if you had synced Mimosas everywhere, it could be done. He's also using a $499 ePMP radio, when he should be using a $200 Force110 PTP. That said, the conclusion the the AF5x is the best is probably right :P On Sat, Apr 18, 2015 at 5:55 PM, Ken Hohhof <af...@kwisp.com <mailto:af...@kwisp.com> > wrote: If your criterion is performance in the presence of a signal on a different frequency 30 dB stronger than the desired signal, this analysis is relevant. Also, this seems to be the scenario airPrism is designed to address. But how often would this occur? Even if the interference is from another non-synced transmitter on the same tower, you’d think directional antennas would knock the interfering signal down to less than 1000 times the desired signal. I guess this could be realistic if you have a point to point link in the same band as a sector, so that a giant dish at the other end is pointed right at your sector. From: Josh Reynolds <mailto:j...@spitwspots.com> Sent: Saturday, April 18, 2015 5:34 PM To: af@afmug.com <mailto:af@afmug.com> ; Seth Mattinen <mailto:se...@rollernet.us> Subject: Re: [AFMUG] Very interesting post.. Horseshit, read the article. Did you miss the portion where Jim said "it's the exact same chip that's in the RM5"? I would have liked to have seen the RM5 in this test as a baseline, but ignoring the results simply because it's N tech in the EPMP is silly. Not only does the throughput drop, but the LEVEL it degrades at is only "bested" by the B5C in a few of the tests. N or not, that's a very poor result. I would love to see other tests posted on this from other people, its always nice to have multiple sources to remove any potential level of bias. Jim did an excellent job on this and should be commended. On April 18, 2015 2:26:50 PM AKDT, Seth Mattinen <se...@rollernet.us <mailto:se...@rollernet.us> > wrote: On 4/18/15 2:49 PM, Peter Kranz wrote: Very interesting shootout comparing AF5X, AC-Lite, AC PTP, EPMP-1000, B5c and RB922 https://community.ubnt.com/t5/airMAX-Stories/Radio-Shootout-Pt-2-let-s-try-a-whole-bunch-of-them/cns-p/1232309 Dude didn't seem to catch that the ePMP is an N radio and dismisses it as worst of the worst. Looks to me like it would probably hold up comparably to its AC counterparts if you take that into consideration. ~Seth -- Sent from my Android device with K-9 Mail. Please excuse my brevity. -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
