that was what i was talking about. check with tom poe he has researched it considerably On Wed, Dec 22, 2010 at 7:07 PM, r j <ronsmailbox5 at gmail.com> wrote: > I am curious about the unused analog TV signal to deliver wireless internet > access. > This article http://www.taranfx.com/wireless-internet-on-analog-tv-antennacaught my attention. > > {* > Australia’s CSIRO has announced that it had succeeded in prototyping the > transmission of wireless broadband Internet over spectrum reserved for > television broadcasts. This breakthrough in wireless technology that will > allow multiple users to upload content at the same time while maintaining a > data transfer rate of *12 megabits* per second (Mbps), all over their old > analog TV aerial, a good time to use it when you are actually moving away > from analog TV. > > The technology is named *Ngara*, and it allows up to 6 users to occupy the > equivalent spectrum space of one television channel (7 megahertz) and has a > spectral efficiency of *20 bits per second per hertz*. If these numbers > confuse you, here’s something more simplistic — Ngara can handle up to 3 > times that of similar technology and maintains a data rate more than 10 > times the industry minimum standard. > > Ngara is capable of delivering wireless data services<http://www.taranfx.com/tag/wireless>to houses within a 20 kilometer radius of a broadcast tower. > > What makes this recent development interesting is how the technology > coincides with the phasing out of analog TV by the Department of Broadband, > Communications and the Digital Economy. > > However, there are tradeoffs. The trouble with Broadband-over-analog is > that many of today’s existing analog terrestrial broadcast towers are not > being maintained in the conversion to digital. The question is whether those > broadcast towers will continue to transmit signals for wireless broadband, > if not this technology would fail before even it impresses us. > > Another point to consider is cost and practical bandwidth. If its not > better than satellite, then it’s unlikely to take the home market by big > margins. > > Ngara can achieve “ symmetrical 12Mbps per 1000 homes”, which is of course > nothing but a dialup connection. If Ngara can be made to scale like > commercial GSM and WiMax systems, we can hope to see its usage to start in > Australia, and spreading to the world. > > *} > Would it be legal and possible to use in MN? > > Sincerest apologies about not editing subject lines properly. > ,RJ > > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list > > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mailman.mn-linux.org/pipermail/tclug-list/attachments/20101222/13e5f245/attachment.htm