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Completly block signal.

 
 
John Larsen
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      07-20-2004, 07:57 PM
Any suggestions on how to completly block a signal. I have a device
that I wish to use its ethernet and turn off its wireless (leaving it
on leaves security problems) but there is no option in its
configuration to do this. I've removed the antenta and tried covering
the hole with aluminum wrap, but still got a signal from a good
distance. I need to have no signal from any distance (or atleast no
signal from 10 feet away seriously).

Any suggestions.
 
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Bill
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      07-20-2004, 09:11 PM
if its a laptop, take the wireless card out... or go into the hardware tap
and disable the wireless card.. when you want to use wireless again, go
back and enable the card
"John Larsen" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) om...
> Any suggestions on how to completly block a signal. I have a device
> that I wish to use its ethernet and turn off its wireless (leaving it
> on leaves security problems) but there is no option in its
> configuration to do this. I've removed the antenta and tried covering
> the hole with aluminum wrap, but still got a signal from a good
> distance. I need to have no signal from any distance (or atleast no
> signal from 10 feet away seriously).
>
> Any suggestions.



 
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Walter Roberson
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      07-20-2004, 09:13 PM
In article <(E-Mail Removed) >,
John Larsen <(E-Mail Removed)> wrote:
:Any suggestions on how to completly block a signal. I have a device
:that I wish to use its ethernet and turn off its wireless (leaving it
n leaves security problems) but there is no option in its
:configuration to do this. I've removed the antenta and tried covering
:the hole with aluminum wrap, but still got a signal from a good
:distance. I need to have no signal from any distance (or atleast no
:signal from 10 feet away seriously).

You want Tempest class shielding. Except that you won't be able to
buy it under that name or even find out what it's specifications are
unless you are in the military and have a Need To Know.

What you -can- buy is a Faraday Cage. That'll certainly -reduce- the
signal; I don't know if you'd be able to get it down to "no signal"
at 10 feet.

Our heavy duty shielding here is aimed more at magnetic fields than
electric. It's made out of a steel and nickel alloy or something like
that, and it is *very* expensive.

I don't have even close to a high enough security clearance to know what
our our government agents use for signal shielding; the closest I get to
that is that I know one fellow who will say only that "Yes, I used to work
for them, and I can't tell you anything about what I did."
--
What is "The Ultimate Meme"? Would it, like Monty Python's
"The World's Funniest Joke", lead to the deaths of everyone who
encountered it? Ideas *have* lead to the destruction of entire cultures.
-- A Child's Garden Of Memes
 
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AG
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      07-20-2004, 09:53 PM

"John Larsen" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) om...
> Any suggestions on how to completly block a signal. I have a device
> that I wish to use its ethernet and turn off its wireless (leaving it
> on leaves security problems) but there is no option in its
> configuration to do this. I've removed the antenta and tried covering
> the hole with aluminum wrap, but still got a signal from a good
> distance. I need to have no signal from any distance (or atleast no
> signal from 10 feet away seriously).
>
> Any suggestions.


Maybe a large iron/steel box like they use for electrical panels would work.
It might be easier and cheaper in the long run to get a small router and
just use that instead of the wireless one.
Here's an idea. Sell the wireless router on Ebay and use the money to buy a
wired one.
:-)
AG


 
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Adam Steiner
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      07-20-2004, 09:58 PM

"John Larsen" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) om...
> Any suggestions on how to completly block a signal. I have a device
> that I wish to use its ethernet and turn off its wireless (leaving it
> on leaves security problems) but there is no option in its
> configuration to do this. I've removed the antenta and tried covering
> the hole with aluminum wrap, but still got a signal from a good
> distance. I need to have no signal from any distance (or atleast no
> signal from 10 feet away seriously).
>
> Any suggestions.


Which router are you using? Some (like Linksys) have third party firmware
which will allow you to do this.


 
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Rens Kempen
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      07-21-2004, 01:32 AM
> :Any suggestions on how to completly block a signal. I have a device

Lol Others would give alot to have a stronger signal and you want to
competely block it... Buying an UTP router would do I guess.

> Our heavy duty shielding here is aimed more at magnetic fields than
> electric. It's made out of a steel and nickel alloy or something like
> that, and it is *very* expensive.


I've read about wallpaper that stops radio signals from getting out. It's
made from the same material as Stealth bombers and is claimed not to be too
expensive.


Rens


 
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Michael Erskine
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      07-21-2004, 04:02 AM
(E-Mail Removed) (John Larsen) wrote in message news:<(E-Mail Removed). com>...
> Any suggestions on how to completly block a signal. I have a device
> that I wish to use its ethernet and turn off its wireless (leaving it
> on leaves security problems) but there is no option in its
> configuration to do this. I've removed the antenta and tried covering
> the hole with aluminum wrap, but still got a signal from a good
> distance. I need to have no signal from any distance (or atleast no
> signal from 10 feet away seriously).
>
> Any suggestions.


Yep, dummy loads. Get a of 50 ohm carbon resistors and remove the
antenna and replace it with the 50 ohm resistor. Mind you ten feet is
just this side of, how dumb is this desire?
 
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Michael Erskine
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      07-21-2004, 04:02 AM
(E-Mail Removed) (John Larsen) wrote in message news:<(E-Mail Removed). com>...
> Any suggestions on how to completly block a signal. I have a device
> that I wish to use its ethernet and turn off its wireless (leaving it
> on leaves security problems) but there is no option in its
> configuration to do this. I've removed the antenta and tried covering
> the hole with aluminum wrap, but still got a signal from a good
> distance. I need to have no signal from any distance (or atleast no
> signal from 10 feet away seriously).
>
> Any suggestions.


Yep, dummy loads. Get a of 50 ohm carbon resistors and remove the
antenna and replace it with the 50 ohm resistor. Mind you ten feet is
just this side of, how dumb is this desire?
 
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Michael Erskine
Guest
Posts: n/a

 
      07-21-2004, 04:02 AM
(E-Mail Removed) (John Larsen) wrote in message news:<(E-Mail Removed). com>...
> Any suggestions on how to completly block a signal. I have a device
> that I wish to use its ethernet and turn off its wireless (leaving it
> on leaves security problems) but there is no option in its
> configuration to do this. I've removed the antenta and tried covering
> the hole with aluminum wrap, but still got a signal from a good
> distance. I need to have no signal from any distance (or atleast no
> signal from 10 feet away seriously).
>
> Any suggestions.


Yep, dummy loads. Get a of 50 ohm carbon resistors and remove the
antenna and replace it with the 50 ohm resistor. Mind you ten feet is
just this side of, how dumb is this desire?
 
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Michael Erskine
Guest
Posts: n/a

 
      07-21-2004, 04:02 AM
(E-Mail Removed) (John Larsen) wrote in message news:<(E-Mail Removed). com>...
> Any suggestions on how to completly block a signal. I have a device
> that I wish to use its ethernet and turn off its wireless (leaving it
> on leaves security problems) but there is no option in its
> configuration to do this. I've removed the antenta and tried covering
> the hole with aluminum wrap, but still got a signal from a good
> distance. I need to have no signal from any distance (or atleast no
> signal from 10 feet away seriously).
>
> Any suggestions.


Yep, dummy loads. Get a of 50 ohm carbon resistors and remove the
antenna and replace it with the 50 ohm resistor. Mind you ten feet is
just this side of, how dumb is this desire?
 
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