I never said you had to believe me. I know what we do, what our environment is like, and what works for us. I know our customers always get 12Mbps, and we never get support calls.
On Tue, Aug 18, 2009 at 6:08 PM, Gino Villarini <g...@aeronetpr.com> wrote: > Jason > > Im sorry but i find some stated facts very difficult to believe. the 25db > vs 3db snr ratio is based on the fact that canopy can perform as expected > with just 3db over noise. MIMO based gear needs about 25 db snr ratio on > both polarities in order to achieve good performence on 64qam and 2 chains. > So if your noise floor is -80, youll need a -55 signal to get the high > performance. I guessing hte nano / loco units would be good for really > close clients, rocket dish for all others > > Gino > > ________________________________ > > From: wireless-boun...@wispa.org on behalf of Jayson Baker > Sent: Tue 8/18/2009 7:44 PM > To: WISPA General List > Subject: Re: [WISPA] Bullet M5 HP > > > > MIMO (especially dual-pol) gets you much better performance. Cell phone > companies have been doing this for years and years. > > You're 3dB vs 25dB comment is misleading. UBNT may need a received level > of > -70dBm to achieve higher speeds... but, so does a Canopy. You can't expect > to achieve anything on a Canopy with, say, a -97dBm signal. Furthermore, > UBNT will actually link around -95dBm and work, albeit slow. Canopy will > say "SCANNING" > > We have tested these products, and have networks deployed both here in the > states and in Costa Rica. You wouldn't think it, but Costa Rica has > waaaaaaay more noise than we do here. The government uses 2.4 and 5GHz for > random things, people have way overamp'ed equipment, there are a ton of > little WISP's, etc. Canopy down there performs as expected... a couple > mbps > up, a couple mbps down. UBNT MIMO blows it away, especially with AirMax > and > in a noisy environment. > > When testing the MIMO you can't just run a single stream, they work best > with many streams. We have seen about 130Mbps on a full-duplex on a > deployed link, around 15 miles, in a noisy environment. With the PtMP > equipment, we see similar results. With the older non-N non-MIMO > equipment, > we have seen up to 100+ subs on a single PowerStation AP, all getting at > least 12Mbps/6Mbps, and latency always under 10ms. > > I get it, it's a Motorola list. We're on here because we use some of that > too. Not much, anymore, because there are much better products out there. > I'm sure this will start a flame war, as talk of anything other than Canopy > always does, and I don't really care. The equipment is cheap enough, if > you > want to see it for yourself buy some and put it in. When you see it works > as well as we've seen, you, too, can offer your subs 12Mbps for $25/mo and > make killer profits. Our ROI on a new install is 1 Day. We make money the > day it's installed. And it just works, we never have customers calling to > complain. > > Cheers! > > On Tue, Aug 18, 2009 at 5:07 PM, Tom DeReggi <wirelessn...@rapiddsl.net > >wrote: > > > Yeah, but its misleading garbage specs. > > > > Mimo adds very little in noisy environments, where double size channels > and > > both polarities can't be both used based on spectrum availabilty, not to > > mention specifying gross speed instead of actual speeds. > > > > I'm not saying the Ubiquiti isn't a really nice needed product, I'm just > > saying, in real world use, I'm not certain its faster than Motorola > PtMP, > > including advantage series. (per Mhz wide channel efficiency). Don't > forget > > the 3b SNR required by canopy and the 25db snr required by Ubiquiti for > > high > > modulations, which is rarely acheived in PtMP. Remember, a flaky > > packetlossy link is going to bring TCP down to its knees in throuhgput > > reduction. > > > > The most exciting thing about teh new product is its inferred that there > > might be a low cost dual pol sector antenna available now? > > > > Tom DeReggi > > RapidDSL & Wireless, Inc > > IntAirNet- Fixed Wireless Broadband > > > > > > ----- Original Message ----- > > From: "Paul Hendry" <paul.hen...@skyline-networks.com> > > To: "wireless" <wireless@wispa.org> > > Sent: Tuesday, August 18, 2009 11:59 AM > > Subject: Re: [WISPA] Bullet M5 HP > > > > > > > Anyone had a chance to fully test any of Ubiquiti's claims like > 150+mbps > > > "real" throughput and 300+ subscribers per AP? Much more impressive > > > numbers than Canopy. > > > > > > > > > > > > Matt wrote: > > >>> Ubiquity has introduced their new product lines, at www.ubnt.com. > > >>> Looking to take Canopy on. > > >>> > > >> > > >> Anything like GPS sync for frequency reuse? > > >> > > >> Matt > > >> > > >> > > >> > > > -------------------------------------------------------------------------------- > > >> WISPA Wants You! Join today! > > >> http://signup.wispa.org/ > > >> > > > -------------------------------------------------------------------------------- > > >> > > >> WISPA Wireless List: wireless@wispa.org > > >> > > >> Subscribe/Unsubscribe: > > >> http://lists.wispa.org/mailman/listinfo/wireless > > >> > > >> Archives: http://lists.wispa.org/pipermail/wireless/ > > >> > > > > > > > > > > > > -------------------------------------------------------------------------------- > > > WISPA Wants You! Join today! > > > http://signup.wispa.org/ > > > > > > -------------------------------------------------------------------------------- > > > > > > WISPA Wireless List: wireless@wispa.org > > > > > > Subscribe/Unsubscribe: > > > http://lists.wispa.org/mailman/listinfo/wireless > > > > > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > > > > -- > > > This message has been scanned for viruses and > > > dangerous content by MailScanner, and is > > > believed to be clean. > > > > > > > > > > > > > > > > > > > > > -------------------------------------------------------------------------------- > > > WISPA Wants You! Join today! > > > http://signup.wispa.org/ > > > > > > -------------------------------------------------------------------------------- > > > > > > WISPA Wireless List: wireless@wispa.org > > > > > > Subscribe/Unsubscribe: > > > http://lists.wispa.org/mailman/listinfo/wireless > > > > > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > > > > > > > > > -------------------------------------------------------------------------------- > > WISPA Wants You! Join today! > > http://signup.wispa.org/ > > > > > -------------------------------------------------------------------------------- > > > > WISPA Wireless List: wireless@wispa.org > > > > Subscribe/Unsubscribe: > > http://lists.wispa.org/mailman/listinfo/wireless > > > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > > > > -------------------------------------------------------------------------------- > WISPA Wants You! 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