[plug] wanted: 56k modem
Kai Jones
Kaij at kamsc.org.au
Wed Jun 14 11:58:41 WST 2006
Go for your life, if you want to make a small loop as close as possible
to your modem and another as close as possible to your wall socket that
will also help...having a loop in the middle will have very little
effect since either side of the loop your phone line acts as an antenna
for RFI and negate the purpose of the loop (filter). If you want, maybe
try an ADSL filter on that line, even if you don't have ADSL there are
usually two small wound toroids in that plastic box which might help.
Michael, in regard to your comments about PC's not handling the load,
from my understanding it's not about load but that external modems are
built for one purpose and internal's don't have the same in-built
dedicated functionality therefor don't usually perform as well.
I'm happy to be corrected if anyone has more accurate info.
-----Original Message-----
From: plug-bounces at plug.org.au [mailto:plug-bounces at plug.org.au] On
Behalf Of Jason Posavec
Sent: Wednesday, 14 June 2006 11:17 AM
To: plug at plug.org.au
Subject: Re: [plug] wanted: 56k modem
That does explain why my tv manual had me wrap the speaker wires around
metal plugs!
Will of course now be conducting experiments to see if looping my phone
cable has any affect on my connection speeds :D
Jason
Kai Jones wrote:
> Noise := electronic noise.
>
> Any wire wound into a coil is effectively a transformer with an air
core
> (instead of having an iron core as you see in most transformers), the
> transformers core will modify inductance/capacitance/resistance of the
> loop, depending on the size of the loop and how many loops it should
act
> like a filter for electronic noise which is in the frequency range for
> whatever size you've made your loop.
>
> Looping around ferret bead(s) as well as using normal air core loops,
> can also have a good effect on supressing electronic noise.
> Make sense ?
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