From owner-freebsd-net@FreeBSD.ORG Wed May 24 03:42:01 2006 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 90E0216A800 for ; Wed, 24 May 2006 03:42:01 +0000 (UTC) (envelope-from oceanare@pacific.net.sg) Received: from smtpgate2.pacific.net.sg (smtpgate2.pacific.net.sg [203.120.90.32]) by mx1.FreeBSD.org (Postfix) with SMTP id A159B43D45 for ; Wed, 24 May 2006 03:42:00 +0000 (GMT) (envelope-from oceanare@pacific.net.sg) Received: (qmail 26049 invoked from network); 24 May 2006 03:41:57 -0000 Received: from maxwell2.pacific.net.sg (203.120.90.192) by smtpgate2.pacific.net.sg with SMTP; 24 May 2006 03:41:57 -0000 Received: from [192.168.0.107] ([210.24.123.195]) by maxwell2.pacific.net.sg with ESMTP id <20060524034156.EFBZ28656.maxwell2.pacific.net.sg@[192.168.0.107]>; Wed, 24 May 2006 11:41:56 +0800 Message-ID: <4473D5F7.7080204@pacific.net.sg> Date: Wed, 24 May 2006 11:41:43 +0800 From: Erich Dollansky Organization: oceanare pte ltd User-Agent: Thunderbird 1.5.0.2 (X11/20060501) MIME-Version: 1.0 To: Mark Jayson Alvarez References: <20060524031429.86826.qmail@web51605.mail.yahoo.com> In-Reply-To: <20060524031429.86826.qmail@web51605.mail.yahoo.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-net@freebsd.org Subject: Re: Anyone heard about Broadband over power lines??? X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 24 May 2006 03:42:05 -0000 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