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Re: Nigel's gratuitous troll
- To: ukha_d@xxxxxxx
- Subject: Re: Nigel's gratuitous troll
- From: Nigel Orr <nigel.orr@xxxxxxx>
- Date: Thu, 02 Sep 1999 11:23:12 +0100
- Delivered-to: listsaver-egroups-ukha_d@xxxxxxx
- Mailing-list: contact ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
At 10:01 02/09/99 +0100, you wrote:
>I still don't see the problem with comms down a power line...
It needn't be problematic, but will _always_ be harder than comms down a
dedicate line.
>but surely the solution is X10+
It could work as a local thing, between wall socket and appliance, but if
everything else is working towards making the power line cleaner, then it's
fighting a losing battle.
>Does mains have a bandwith
>issue
Yes, 50Hz, +/- about 1% ;-)
>Can't you just put an X10 filter on the main
>powerline into the house to deal with interference from other houses.
Filters are never perfect, but yes basically. You still get interference
from your own house and suppression soaking up the signals. Your filter
will probably soak up some of their signals as well, which isn't very
nice...
>Besides, isn't it NORWEB who are considering running a full blown
>internet/telephone service over powerlines to your house
They have proposed it, but are being restrained by the IEE among others,
who point out that the cables used for carrying mains electricity are not
suitable for data- with leaks at every cable join and radiated energy along
the route... I hope they succeed in keeping the system as a prototype until
something improves drastically.
>do something with the cables running inside your house?
It is- you can run mains on them... I just had a funny thought after my
last posting- if people aren't happy having 2 plugs for things, how come so
many have portable phones 8-) - they're supposed to make for less cables,
but they need 2 (mains and phone) to plug in!
Nigel
--
Nigel Orr Research Associate O ______
Underwater Acoustics Group, o / o \_/(
Dept of Electrical and Electronic Engineering (_ < _ (
University of Newcastle Upon Tyne \______/ \(
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