The RF noise generated by these technologies is quite bad, it's in a band where noise can propogate worldwide via the ionosphere. It can prevent receivers locking to, or demodulating a signal.
http://downloads.bbc.co.uk/rd/pubs/whp/whp-pdf-files/WHP116.pdf

Also, it's very easy to demodulate the Ethernet traffic radiated from your house wiring from one of these systems - it's not very secure!


Simon

PS Single wire telephone extensions?


Alan Pope wrote:
2009/12/14 Brian Butterworth <[email protected]>:
As someone who has been responsible for installation of enough cat5 to ....
Why would you want to use a HomePlug?

Because it's easier than flood wiring the whole house.

 People used to have landline phones
upstairs, and everyone was happy with wires for that.

Usually one wire, singular. With HomePlug I can have ethernet wherever
there is a power point, and I do move them around now and then.

 HomePlug is not just
pointless, it is expensive and is to radio hams as light pollution is to
astronomers.

I must say I'd never heard of the radio interference at all.

Cheers,
Al.

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