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Originally Posted by scastle
Actually, further to Ignition's post above, I thought that BB through powerlines was only able to sustain high speeds if you are a) close to the local substation (by close, I mean within a mile) and b) on a substation with few users.
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Actually the range to local 'substation' or wherever the signal is injected is a couple of hundred metres. Power lines are an appauling compromise. They are neither balanced, insulated, nor in any way remotely suited to carrying data. Compare this to hybrid fibre coax network for speed, and twisted pair for balanced signal.
With DSL and cable modem covering virtually 100% by end of next year there's absolutely no incentive for a power company to invest. Competition too strong, not enough areas to cover.