A VERY good guide to the whitespaces antenna sizes... are the millions of TV antennas we've been using for 50+ years.
----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com -------------------------------------------------- From: "Mike" <[email protected]> Sent: Thursday, October 22, 2009 7:52 PM To: <[email protected]>; "WISPA General List" <[email protected]> Subject: Re: [WISPA] Holy cow! > At 704 MHz, a quarter wave is about 4 inches long. The driven > element of a Yagi would be about 8 inches long. They would be way > shorter than 30 meters, or what do you mean? Think about the 900 MHz > antennas you see but just a little bigger for the upper UHF white space. > > Ch 52 is 698 MHz. Ch 69 is 800 MHz. Some of the talk I've seen > about enormous antennas in the "white space" is ludicrous. > > Give me ANY part of it and the radios to use it and I > will. Propagation would be superior to anything we're using now. > > Mike > > > At 07:46 PM 10/22/2009, you wrote: >>What equipment are they using? Did they have to do the 30 meter antennas? >> >>Scottie >> >>---------- Original Message ---------------------------------- >>From: "Gino Villarini" <[email protected]> >>Reply-To: WISPA General List <[email protected]> >>Date: Thu, 22 Oct 2009 12:05:22 -0400 >> >> >IIRC, 6 mhz channels were proponed on the FCC RO, you could bond them... >> >so with current OFDM technologies you can get 10 - 12 Mbps on a 6 mhz >> >channel. >> > >> >Not bad for a NLOS, self install and mobile probability >> > >> >Gino A. Villarini >> >[email protected] >> >Aeronet Wireless Broadband Corp. >> >787.273.4143 >> >-----Original Message----- >> >From: [email protected] [mailto:[email protected]] On >> >Behalf Of Scott Carullo >> >Sent: Thursday, October 22, 2009 11:58 AM >> >To: WISPA General List >> >Subject: Re: [WISPA] Holy cow! >> > >> > >> >My question is how fast can their internet go using tv whitespace? >> >Sprint >> >used to serve this area with an unutilized tv channel and it was SLOW. >> >I >> >guess if you had nothing else but if it can't go one MB its not on my >> >radar >> >of concern. Actually in our market if you cant deliver 10-20MB your not >> > >> >playing the game. >> > >> >Scott Carullo >> >Brevard Wireless >> >321-205-1100 x102 >> >-------- Original Message -------- >> >> From: "Jack Unger" <[email protected]> >> >> Sent: Thursday, October 22, 2009 11:49 AM >> >> To: "WISPA General List" <[email protected]> >> >> Subject: Re: [WISPA] Holy cow! >> >> >> >> See the attached Case Study and Press Release. >> >> >> >> jack >> >> >> >> >> >> Jonathan Schmidt wrote: >> >> > Dell, Microsoft Launching Broadband Net In Rural Virginia >> >> > Computer Companies Join TDF Foundation, Spectrum Bridge To Debut >> >Network >> >> > Using 'White Spaces' >> >> > >> >> > John Eggerton -- Multichannel News, 10/21/2009 3:47:19 PM >> >> > >> >> > >> >> > Computer companies Dell and Microsoft are scheduled to join with TDF >> >> > Foundation and Spectrum Bridge Wednesday to launch a broadband >> >network >> >in >> >> > rural Virginia, using the so-called white spaces between TV >> >channels. >> >> > >> >> > House Communications Subcommitee Chairman Rick Boucher, who >> >represents >> >> > rural Virginia, is scheduled to be on hand as the companies host a >> >Webcast >> >> > with residents of an Appalachian community talking about how >> >wireless >> >> > Interent connectivity can change their lives. >> >> > >> >> > The government is currently working on a national broadband plan, >> >> > including freeing up even more spectrum space for wireless Internet. >> >> > >> >> > Spectrum Bridge, a sort of Ebay for identifying available spectrum >> >in >> >> > secondary markets, launched a Web site in February to help identify >> >> > available open TV channels. The site can be used by wireless >> >Internet >> >> > providers to figure out whether there is enough spectrum in a >> >potential >> >> > service area to make it economically viable. >> >> > >> >> > >> >> > >> >------------------------------------------------------------------------ >> >---- >> >---- >> >> > WISPA Wants You! Join today! >> >> > http://signup.wispa.org/ >> >> > >> >------------------------------------------------------------------------ >> >---- >> >---- >> >> > >> >> > WISPA Wireless List: [email protected] >> >> > >> >> > Subscribe/Unsubscribe: >> >> > http://lists.wispa.org/mailman/listinfo/wireless >> >> > >> >> > Archives: http://lists.wispa.org/pipermail/wireless/ >> >> > >> >> > >> >> > >> >> >> >> -- >> >> Jack Unger - President, Ask-Wi.Com, Inc. >> >> Author - "Deploying License-Free Wireless WANs" >> >> Serving the Broadband Wireless Industry Since 1993 >> >> www.ask-wi.com 818-227-4220 [email protected] >> >> >> >> Sent from my Pizzicato PluckString... >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >------------------------------------------------------------------------ >> >---- >> >---- >> >> WISPA Wants You! 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