Date: Wed, 24 May 2006 11:41:43 +0800 From: Erich Dollansky <oceanare@pacific.net.sg> To: Mark Jayson Alvarez <jay2xra@yahoo.com> Cc: freebsd-net@freebsd.org Subject: Re: Anyone heard about Broadband over power lines??? Message-ID: <4473D5F7.7080204@pacific.net.sg> In-Reply-To: <20060524031429.86826.qmail@web51605.mail.yahoo.com> References: <20060524031429.86826.qmail@web51605.mail.yahoo.com>
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Hi, Mark Jayson Alvarez wrote: > Hi, > > A while ago, a group of individuals have demonstrated > us with devices that can be used to extend your yes, it works wonderful. But there is a huge but. It works wonderful as long as the data volume is low. The problem is that the powerlines are not shielded. Every bit of data going through a powerline transmit a signal in the radio frequency range. The frequency depends on many factors. The main problem is that it will interrupt the usage of those frequencies by their legal owners. The moment you hit the frequencies used by the military they will find the source and stop it. > long time ago and some Electric companies in other They use this also in many countries to read their own meters. But the large scale usage was or is blocked by the owners of the affeced frequencies. > know any ongoing opensource initiative regarding this > technologies?? You do not need much software to do it as the hardware speaks already TCP/IP. Erich
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