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On Tue, 19 May 2009, Tom Potts wrote: > On Tuesday 19 May 2009 13:55, Mick Vaites wrote: > ... >>>> I have used Devolo in a number of situations and have had no problems >>>> with them at all. Contrary to what Martin says I have found that as >>>> long as they are on the same meter they will work across floors and >>>> whole buildings. I have a client who has an office at the end of his >>>> garden with a separate fuse board but all on the same meter. His >>>> devolo system works fine. >> From my faded memory of old style meters (no idea what they do today) you'd be > lucky to push anything over a few hundred hertz through them. They would > effectively be a very effective filter of all ethernetty stuff. If you owned > 'the other side of the meter' - ie in a case of submetering off one that was > connected to the grid then it should be possible to put some high-pass > filters around the internal meters to allow networking over them. I was involved briefly with some ether over power stuff some time back - back when it was all quite new, so... And yes, we found meters effectively blocked the signals - but this was old style meters with coils and wheels, so maybe new meters are different. Those filtered mains extension sockets were good blockers too. So we went with wi-fi bridges for this application in the end (it was bedsits with individual meters)... And a Wi-Fi bridge is what I'd still recomend for Kevins application. Much less faffing about with plugs, sockets, ethernet cables and so-on. Gordon -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html