Josh:I thought that too. I have a handful of customers on a 5 MHz sector. Winbox shows this:
Emacs! Mike At 07:32 PM 11/22/2009, you wrote:
I believe when you half the channels the rates also get halved - from 54mbit to 27mbit max (that is from 20mhz to 10mhz channels). I also can't see why you're voice would be having problems in half or quarter channels unless there is a software bug. It should only improve unless you're using all available bandwidth. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 "The secret to creativity is knowing how to hide your sources." --- Albert Einstein On Sun, Nov 22, 2009 at 8:08 PM, Chuck Hogg <ch...@shelbybb.com> wrote: > First, you should have a better signal than -70 at <5Miles away with a > 24dB/NS2 antenna and a B2HP/9dB omni. I get 65 or better with a 19dB > panel. > > Don't forget, 10MHz channel is 1/2 available bandwidth and 5MHz is 1/4 > available bandwidth. Really, you will get about 7-10MBit aggregate > (depending on how many customers) on a 5MHz channel connected at 54MBit, > which requires signals at -74dBm with a good fade margin (10dB). Also, > the TX power is significantly less for 54MBps (23dBm) vs 24MBps(28dBm), > less than half. Likely, you are connecting at 48MBps or 36Mbps, which > at that rate your total available "real case" bandwidth is as little as > 4MBps, while at 20MHz you are at 15+. > > A narrower channel should not affect your transmission, likely will make > signals better, roughly double (+3dBm) from 20-10, and double from > 10-5(total +6dBm). > > Regards, > Chuck Hogg > Shelby Broadband > 502-722-9292 > ch...@shelbybb.com > http://www.shelbybb.com > > > -----Original Message----- > From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On > Behalf Of os10ru...@gmail.com > Sent: Sunday, November 22, 2009 6:20 PM > To: WISPA General List > Subject: Re: [WISPA] 10MHz, 5MHz - unstable for voice? > > Well next time definitely bring more food! Beef jerky and granola bars. > > In my testing the narrower channels just made things slower. I was > testing in a pristine area where there was no other 5.8GHz going on. > >From what I hear if the environment had been polluted performance might > have actually gone up with the narrower channels. > > >From what I've read narrower channels doesn't effect packet size or > transport. But switching to WDS bridged does. > > Greg > On Nov 22, 2009, at 6:15 PM, Israel Lopez-LISTS wrote: > > > Its not in the field, but it is sitting here in my bedroom looking > cool :). > > > > I was thinking that using the 10/5MHz bandwidth required one to setup > > something else. I'm not that familiar with the use of half/quarter > rate > > channels and how that affects the frame transport/packet size etc,. > > > > I wonder if it was environment based rather than > > 'software/configuration' based. If I get some time this evening I > might > > setup the gear again for more focused testing (Testing in the field > with > > volunteers who are cold and hungry dont usually respond well to > testing > > plans). > > > > -Israel > > > > os10ru...@gmail.com wrote: > >> Just for kicks I'd try WDS bridged. Do you have control from where > you're at now? Is the equipment still set up? > >> > >> Greg > >> > >> On Nov 22, 2009, at 6:02 PM, Israel Lopez-LISTS wrote: > >> > >> > >>> @Travis Johnson - Yes Upgraded to newest firmware for the two units > >>> > >>> @os10rules - Nope, Fixed was simple AP and Mobile was Station modes > >>> > >>> os10ru...@gmail.com wrote: > >>> > >>>> Running WDS bridged? > >>>> > >>>> Greg > >>>> On Nov 22, 2009, at 5:37 PM, Israel Lopez-LISTS wrote: > >>>> > >>>> > >>>> > >>>>> Hey All, > >>>>> > >>>>> I did some field tests (for overseas volunteer project) with some > >>>>> Ubituiti gear; Nanostation2 & Bullet2HP. > >>>>> > >>>>> One thing that was surprising was the performance degradation when > > >>>>> switching from 20MHz to 10MHz/5MHz. Our tests were Raw Bandwidth > >>>>> Tests(AirOS), Video (VLC UDP Stream), Voice (Trixbox G711 Voice > Call), > >>>>> and MTR (Latency, Jitter) > >>>>> > >>>>> I still have data to collect and prepare a report for the tech > team, but > >>>>> we did notice that when we switched to 10 or 5MHz bandwidth our > voice > >>>>> calls was greatly degraded. Only one way; from Fixed to Mobile I > could > >>>>> hear the Fixed station easily. Mobile to Fixed the voice was > choppy. > >>>>> We started to get packet loss & massive jitter on 10MHz, just > going back > >>>>> to 20MHz made the links stable. > >>>>> > >>>>> Fixed Station: On a mountain side - HPOL 9dBI Omni Directional > with a > >>>>> Bullet2HP @400mW > >>>>> Mobile Station: 8km away near large body of water - Bullet2HP > @400mW w/ > >>>>> 24dBi Directional (HPOL Alignment) -70dbm RSSI > >>>>> > >>>>> Any ideas? We are planning on using 10MHz channels & H-Pol to > combat > >>>>> any future spectrum pollution and voice calls over this network is > expected. > >>>>> > >>>>> -Israel > >>>>> > >>>>> > >>>>> > ------------------------------------------------------------------------ > -------- > >>>>> 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! 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! 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! 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/
<<inline: 36fbe3f8.jpg>>
-------------------------------------------------------------------------------- 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/
