I'm not an engineer, but from what I understand when you apply 20 dBm to channels of different widths, the same gross power is spread out. Each Hz receives less power in a wider channel. This rule allows the larger channels to not face the power punishment.
Spectral efficiency has little to do with the channel width and more with the technology. You can use an Atheros chipset to produce channel widths of 5, 10, 20, and 40 MHz, but they all traffic roughly the same bits/Hz. Squashing the entire band is something that'll happen when you're given such small bands and attempting to push big data over it. That's where the contention requirements and synch of some kind come in to play. ---------- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com ----- Original Message ----- From: "John Scrivner" <[EMAIL PROTECTED]> To: "WISPA General List" <wireless@wispa.org> Sent: Sunday, July 27, 2008 1:47 PM Subject: Re: [WISPA] 3.650 Wimax in the field > The FCC must have been asleep when they set the rule this way. The rule > should have been the opposite. If you want high power then use narrow > channels and become more spectrally efficient. I am going to try to get a > little face time with Julie Knapp and see if he can explain to me how they > got this so backward. Maximum channel sizes would have been a good thing > also to stop someone from building a radio which could squash everyone out > of the band in one sector or omni alone. I am scared sometimes when I see > what comes from those who are supposed to be the leaders of our country > involving spectrum policy. > Scriv > > > On Sun, Jul 27, 2008 at 8:47 AM, Mike Hammett > <[EMAIL PROTECTED]>wrote: > >> It's 1 watt per MHz of channel width. It's up to the FCC to certify >> something for more than 20 MHz of channel space. >> >> >> ---------- >> Mike Hammett >> Intelligent Computing Solutions >> http://www.ics-il.com >> >> >> ----- Original Message ----- >> From: <[EMAIL PROTECTED]> >> To: "'WISPA General List'" <wireless@wispa.org> >> Sent: Saturday, July 26, 2008 3:09 AM >> Subject: Re: [WISPA] 3.650 Wimax in the field >> >> >> Sorry to Hijack this but what was the final EIRP determined by the FCC on >> 3.65? I remember they were talking about allowing 24 watts I believe I >> read >> on the site somewhere. Lastly where on the fcc site do you register your >> base stations? What about searching the site for deployed base stations >> in >> your area? >> >> Thanks, >> >> Michiana Wireless, Inc. >> John Buwa, President >> >> http://WWW.MichianaWireless.Com >> 574-233-7170 >> >> "Lose the wires, discover the speed, enjoy the freedom!" >> >> *US Distributor for www.itelite.net Antennas* >> >> >> > -----Original Message----- >> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On >> > Behalf Of Charles Wu >> > Sent: Friday, July 25, 2008 2:04 PM >> > To: WISPA General List >> > Subject: Re: [WISPA] 3.650 Wimax in the field >> > >> > That's a lot easier *SAID* than done... >> > >> > Especially when you factor in frame rates / etc (as one configures >> > those depending on the type of traffic) >> > >> > ------------------------------------------- >> > WiNOG Wireless Roadshows >> > Coming to a City Near You >> > http://www.winog.com >> > >> > >> > -----Original Message----- >> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On >> > Behalf Of Jeff Booher >> > Sent: Sunday, August 24, 2008 2:37 PM >> > To: 'WISPA General List' >> > Subject: Re: [WISPA] 3.650 Wimax in the field >> > >> > >> > >> > Having a competitor use the same upload and download ratios and similar >> > GPS >> > settings will yes, make it so operators can coexist without the issues >> > of >> > interference. >> > >> > >> > >> > >> > Jeff Booher >> > >> > Channel Manager, North America >> > www.apertonet.com >> > [EMAIL PROTECTED] >> > [EMAIL PROTECTED] >> > 24/7: 206-455-4950 >> > >> > This email may contain material that is confidential, privileged and/or >> > work >> > product for the sole use of the intended recipient. Any review, >> > reliance or >> > distribution by others without express permission is strictly >> > prohibited. If >> > you are not the intended recipient, please contact the sender and >> > delete all >> > copies. >> > >> > -----Original Message----- >> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On >> > Behalf Of 3-dB Networks >> > Sent: Tuesday, July 22, 2008 8:51 PM >> > To: 'WISPA General List' >> > Subject: Re: [WISPA] 3.650 Wimax in the field >> > >> > John, >> > >> > >From what I understand all manufactures are required to use the same >> > >GPS >> > sync, so all WiMax gear with the appropriate timing settings equal can >> > be >> > timed together. Apparently the FCC is requiring it for the equipment >> > to be >> > certified. >> > >> > Daniel White >> > 3-dB Networks >> > >> > -----Original Message----- >> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On >> > Behalf Of John Rock >> > Sent: Tuesday, July 22, 2008 9:37 PM >> > To: WISPA General List >> > Subject: Re: [WISPA] 3.650 Wimax in the field >> > >> > I would disagree. WiMAX should be a goal for most WISPs to get into >> > their >> > networks over the next 1-3 years. >> > Why??? Roaming!!! It will be the real deal and the WISP market, if they >> > do >> > the right things, will be able to setup roaming agreements to exist >> > with >> > each other all over the USA. >> > CPE will be available in all sorts of devices between 2.3 and 3.8 GHz >> > and >> > yes 3.65 falls in that window. Device frequency scanning will be >> > dictated by >> > >> > availabilty. So if the WISP Market, small and large, build compatable >> > 3.65 >> > networks with viable roaming agreements with the right service flows >> > everyone could be happy. Keep in mind the right things need to fall in >> > place >> > >> > for this to happen. >> > >> > Hurdles... >> > -CPE that really are interoperable and in many types of devices. >> > -Base Station RF in a cellular sence. That equals build outs with >> > competitive priced Base stations in mobile mind set. >> > -Base stations from different manufactureers that can GPS sync with >> > each >> > other so UL/DL ratios can co exist in a given area. To my knowledge >> > this >> > does not exist yet but would be critical to help with interference in >> > the >> > 3.65 GHz band. The WiMAX forum needs to make sure this does exist >> > between >> > base stations along with the interoperability standards they are >> > developing. >> > >> > The GPS peice may exist but I have yet to see in in the standerds. >> > >> > Thanks, >> > >> > John Rock >> > Wireless Connections >> > Director of Operations - Senior Engineer ACCessing the Future Today!! >> > ofc. 419.660.6100 >> > cell 419-706-7356 >> > fax 419-668-4077 >> > http://www.wirelessconnections.net >> > This transmission and any files attached to it, may contain >> > confidential >> > and/or privileged information and intended only for the named >> > recipient. If >> > you are not the intended recipient, you are hereby notified that any >> > disclosure, reproduction, retransmission, dissemination, disclosure, >> > copying >> > >> > or any use of the information or files contained is strictly >> > prohibited. If >> > you have received this transmission in error, please notify the sender >> > by >> > reply transmission and delete this electronic mail. >> > ----- Original Message ----- >> > From: "3-dB Networks" <[EMAIL PROTECTED]> >> > To: "'WISPA General List'" <wireless@wispa.org> >> > Sent: Tuesday, July 22, 2008 9:30 PM >> > Subject: Re: [WISPA] 3.650 Wimax in the field >> > >> > >> > > Mike I hate to say it but I don't think WiMax is intended for the >> > > average WISP... lots of carrier grade functionality that the WISP >> > > market doesn't need, but really drives up the price (I think its >> > > supposed to do 6 9's for >> > > availability?) >> > > >> > > It sucks that its going to limit the WISP's with small customers >> > bases >> > > >> > > Daniel White >> > > 3-dB Networks >> > > -----Original Message----- >> > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] >> > > On Behalf Of Mike Hammett >> > > Sent: Tuesday, July 22, 2008 6:36 PM >> > > To: [EMAIL PROTECTED]; WISPA General List >> > > Subject: Re: [WISPA] 3.650 Wimax in the field >> > > >> > > Which is not your average WISP... >> > > >> > > >> > > ---------- >> > > Mike Hammett >> > > Intelligent Computing Solutions >> > > http://www.ics-il.com >> > > >> > > >> > > ----- Original Message ----- >> > > From: "Jeff Booher" <[EMAIL PROTECTED]> >> > > To: "'WISPA General List'" <wireless@wispa.org> >> > > Sent: Tuesday, July 22, 2008 5:42 PM >> > > Subject: Re: [WISPA] 3.650 Wimax in the field >> > > >> > > >> > >> Brian, >> > >> >> > >> >> > >> Depends on many factors. The price point of 10k per sector is >> > usually >> > >> assuming you are talking about purchasing 1-6 sectors. Most of the >> > >> MFR's are able to and willing to come down in price considerably >> > when >> > >> frame orders or larger deployments are taken into consideration. >> > >> >> > >> >> > >> Best Regards, >> > >> >> > >> >> > >> Jeff Booher >> > >> >> > >> Channel Manager, North America >> > >> www.apertonet.com <http://www.apertonet.com/> >> > >> [EMAIL PROTECTED] >> > >> [EMAIL PROTECTED] >> > >> 24/7: 206-455-4950 >> > >> >> > >> This email may contain material that is confidential, privileged >> > and/or >> > >> work >> > >> product for the sole use of the intended recipient. Any review, >> > reliance >> > >> or >> > >> distribution by others without express permission is strictly >> > prohibited. >> > >> If >> > >> you are not the intended recipient, please contact the sender and >> > delete >> > >> all >> > >> copies. >> > >> >> > >> >> > >> _____ >> > >> >> > >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] >> > On >> > >> Behalf Of Brian Rohrbacher >> > >> Sent: Monday, July 21, 2008 6:06 PM >> > >> To: WISPA General List >> > >> Subject: Re: [WISPA] 3.650 Wimax in the field >> > >> >> > >> >> > >> So, how much does this stuff cost? >> > >> >> > >> Brian >> > >> >> > >> John McDowell wrote: >> > >> >> > >> I believe it. >> > >> >> > >> >> > >> >> > >> Today we had a 1.5 mile shot through dense trees using Redline >> > Redmax >> > >> 3.65. >> > >> >> > >> Customer was getting close to 500k upload. Signal held steady at >> > 88db on >> > >> a >> > >> >> > >> 1-story house. >> > >> >> > >> >> > >> >> > >> On Mon, Jul 21, 2008 at 8:01 PM, Mike Cowan >> > >> <mailto:[EMAIL PROTECTED]> >> > <[EMAIL PROTECTED]> >> > >> >> > >> wrote: >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> Many of you have known me for years, some wish they didn't :-). I >> > am >> > >> >> > >> the doubting Thomas type and have to test myself before I recommend >> > >> >> > >> products to a client. Lets just say that Thomas was satisfied. Now >> > >> >> > >> the clients are echoing the same and that is what drives my wagon. >> > >> >> > >> Message-Id: >> > >> <mailto:[EMAIL PROTECTED]> >> > >> <[EMAIL PROTECTED]> >> > >> >> > >> >> > >> >> > >> Mike >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> At 08:52 PM 7/21/2008, you wrote: >> > >> >> > >> >> > >> >> > >> Same here, I thought it was all marketing hype, if it works like the >> > >> >> > >> poster mentioned, we will need to consider moving up our timetable >> > for >> > >> >> > >> evaluating wimax, 10k a basestation suddenly isn't that bad with the >> > >> >> > >> performance described. >> > >> >> > >> >> > >> >> > >> Regards >> > >> >> > >> Michael Baird >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> Now this is a 180* of what others have told me, even others offering >> > >> >> > >> traditional, D, and E products. >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> ---------- >> > >> >> > >> Mike Hammett >> > >> >> > >> Intelligent Computing Solutions >> > >> >> > >> http://www.ics-il.com >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> Mike Cowan >> > >> >> > >> Wireless Connections >> > >> >> > >> A Division of ACC >> > >> >> > >> 166 Milan Ave >> > >> >> > >> Norwalk, OH 44857 >> > >> >> > >> 419-660-6100 >> > >> >> > >> 419-706-7348 Cell >> > >> >> > >> [EMAIL PROTECTED] >> > >> >> > >> www.wirelessconnections.net >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > > >> > ----------------------------------------------------------------------- >> > ----- >> > >> ---- >> > >> >> > >> WISPA Wants You! 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