Completely isolating a mobile phone

[Michael A. Terrell]

Jeff Liebermann wrote:

On Wed, 17 Aug 2011 19:49:29 +0800, Man-wai Chang
toylet.toylet@gmail.com> wrote:

Because aluminum is known to block the government mind control rays
that are forcing you to post such drivel. With an aluminum foil hat,
you will be safe from cell phone radiation and mind control rays.

Could I use the bags for potato chips?

Yes, but only if I get all the potato chips. I prefer the overpriced
non-greasy rice based salt and pepper kettle fried variety. Send to
address below.

How many?

One bag holds about 240g of chips.

Some of the companies I previously listed sell a fancy aluminum and
plastic bag, with a wire mesh view port, and built in foil gloves. It
is possible to tune a radio or pager in such a bag, but it's probably
awkward. Sorry, but I don't recall the company and didn't find
anything with Google.

Ramsey used to sell that equipment.


--
Subject: Spelling Lesson

The last four letters in American.........I Can
The last four letters in Republican.......I Can
The last four letters in Democrats.........Rats

End of lesson. Test to follow in November, 2012

Remember, November is to be set aside as rodent extermination month.

 

[Sylvia Else]

On 17/08/2011 11:01 PM, Ian Field wrote:

"Sylvia Else"<sylvia@not.here.invalid> wrote in message
news:9b12qpFjj0U1@mid.individual.net...
On 17/08/2011 4:46 AM, Ian Field wrote:
"Jeff Liebermann"<jeffl@cruzio.com> wrote in message
news:908l479mk7jl7im259mubjltgl8vcd50g8@4ax.com...
On Tue, 16 Aug 2011 21:01:07 +0800, Man-wai Chang
toylet.toylet@gmail.com> wrote:

I threw it into a tin can then invert it. It still rang when I dialed
its number.

Did you put anything over the open end of the tin can?

Must I use aluminium foil? Why does Al make a difference?

Because aluminum is known to block the government mind control rays
that are forcing you to post such drivel. With an aluminum foil hat,
you will be safe from cell phone radiation and mind control rays.


Putting head in microwave oven is more permanent cure for mind control
rays.


He'll need to overcome the safety cut-out that the government requires to
be installed to prevent people escaping mind-control rays that way.

Sylvia.


Some TV drama showed someone jamming plastic forks in the interlock catch
slots so it worked with the door open

Sheesh - talk about irresponsible broadcasting.

Sylvia.

 

[Sylvia Else]

On 17/08/2011 2:19 PM, TonyS wrote:

On 16/08/2011 9:01 PM, Man-wai Chang wrote:

I threw it into a tin can then invert it. It still rang when I dialed
its number.

Must I use aluminium foil? Why does Al make a difference?


Had to test it
In a tin can (tea can 2x2x3") fully closed: no reception
Overlapping lid only 2 mm open: reception
Microwave: no reception

Tony

How did you check that you can hear the phone ring inside the completely
closed can?

Sylvia.

 

[Jeff Liebermann]

On Wed, 17 Aug 2011 19:08:05 -0400, "Michael A. Terrell"
<mike.terrell@earthlink.net> wrote:

Some of the companies I previously listed sell a fancy aluminum and
plastic bag, with a wire mesh view port, and built in foil gloves. It
is possible to tune a radio or pager in such a bag, but it's probably
awkward. Sorry, but I don't recall the company and didn't find
anything with Google.

Ramsey used to sell that equipment.

Yep. They did, but I don't see it on their web pile:
<http://www.ramseytest.com>
Probably discontinued due to the low demand for RF proofing potato
chips.

I actually used one of those bags for tuning pagers in about 1972. It
sorta worked, but wasn't any fun. Try tuning something small while
wearing welding gloves for a fair simulation. We later switched a
home made RF shielded box, with aluminum on mylar foil gloves built
in. After I left, they bought an aluminum semi-truck trailer, fitted
the doors with copper fingers, installed HVAC, filtered the entry
wires, and build a somewhat mobile screen room.

RF shielded "tent"
<http://www.shieldextrading.net/tents.html>
Sigh... I was hoping for a pyramid power tent.

--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558
# http://802.11junk.com jeffl@cruzio.com
# http://www.LearnByDestroying.com AE6KS

 

[TonyS]

On 18/08/2011 9:14 AM, Sylvia Else wrote:

On 17/08/2011 2:19 PM, TonyS wrote:
On 16/08/2011 9:01 PM, Man-wai Chang wrote:

I threw it into a tin can then invert it. It still rang when I dialed
its number.

Must I use aluminium foil? Why does Al make a difference?


Had to test it
In a tin can (tea can 2x2x3") fully closed: no reception
Overlapping lid only 2 mm open: reception
Microwave: no reception

Tony

How did you check that you can hear the phone ring inside the completely
closed can?

Sylvia.

I thought it should be obvious. The can rattles like hell when the
vibrator goes off

Tony

 

[Sylvia Else]

On 18/08/2011 3:29 PM, TonyS wrote:

On 18/08/2011 9:14 AM, Sylvia Else wrote:
On 17/08/2011 2:19 PM, TonyS wrote:
On 16/08/2011 9:01 PM, Man-wai Chang wrote:

I threw it into a tin can then invert it. It still rang when I dialed
its number.

Must I use aluminium foil? Why does Al make a difference?


Had to test it
In a tin can (tea can 2x2x3") fully closed: no reception
Overlapping lid only 2 mm open: reception
Microwave: no reception

Tony

How did you check that you can hear the phone ring inside the completely
closed can?

Sylvia.

I thought it should be obvious. The can rattles like hell when the
vibrator goes off

Tony

Hmm... OK, I'll give you that one. I don't use mobile phones much -
perhaps it shows.

Sylvia.

 

[TonyS]

On 18/08/2011 1:33 PM, Sylvia Else wrote:

On 18/08/2011 3:29 PM, TonyS wrote:
On 18/08/2011 9:14 AM, Sylvia Else wrote:
On 17/08/2011 2:19 PM, TonyS wrote:
On 16/08/2011 9:01 PM, Man-wai Chang wrote:

I threw it into a tin can then invert it. It still rang when I dialed
its number.

Must I use aluminium foil? Why does Al make a difference?


Had to test it
In a tin can (tea can 2x2x3") fully closed: no reception
Overlapping lid only 2 mm open: reception
Microwave: no reception

Tony

How did you check that you can hear the phone ring inside the completely
closed can?

Sylvia.

I thought it should be obvious. The can rattles like hell when the
vibrator goes off

Tony


Hmm... OK, I'll give you that one. I don't use mobile phones much -
perhaps it shows.

Sylvia.

Don't worry Sylvia, I still consider yours one of the best brains on
usenet

Tony

 

[Jeff Urban]

What you need is a bucket of water.

J

 

[Man-wai Chang]

On 18/08/11 1:16 PM, Jeff Urban wrote:

What you need is a bucket of water.

I wanna shield it from RF, not destroying it.


--
@~@ You have the right to remain silent.
/ v \ Simplicity is Beauty!
/( _ )\ May the Force and farces be with you!
^ ^ (x86_64 Ubuntu 9.10) Linux 2.6.39.3
不借貸! 不詐騙! 不援交! 不打交! 不打劫! 不自殺! 請考慮綜援 (CSSA):
http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa

 

[Michael A. Terrell]

Jeff Liebermann wrote:

On Wed, 17 Aug 2011 19:08:05 -0400, "Michael A. Terrell"
mike.terrell@earthlink.net> wrote:

Some of the companies I previously listed sell a fancy aluminum and
plastic bag, with a wire mesh view port, and built in foil gloves. It
is possible to tune a radio or pager in such a bag, but it's probably
awkward. Sorry, but I don't recall the company and didn't find
anything with Google.

Ramsey used to sell that equipment.

Yep. They did, but I don't see it on their web pile:
http://www.ramseytest.com
Probably discontinued due to the low demand for RF proofing potato
chips.

I think they dropped the line about five years ago, but some of it
shows up on Ebay.

I actually used one of those bags for tuning pagers in about 1972. It
sorta worked, but wasn't any fun. Try tuning something small while
wearing welding gloves for a fair simulation. We later switched a
home made RF shielded box, with aluminum on mylar foil gloves built
in. After I left, they bought an aluminum semi-truck trailer, fitted
the doors with copper fingers, installed HVAC, filtered the entry
wires, and build a somewhat mobile screen room.

I've worked in real screened rooms, without air conditioning at the
old Cincinatti Electronics plant (Glenndale-Milford Road)in the mid
'70s.


--
Subject: Spelling Lesson

The last four letters in American.........I Can
The last four letters in Republican.......I Can
The last four letters in Democrats.........Rats

End of lesson. Test to follow in November, 2012

Remember, November is to be set aside as rodent extermination month.

 

[Jeff Liebermann]

On Thu, 18 Aug 2011 09:57:51 -0400, "Michael A. Terrell"
<mike.terrell@earthlink.net> wrote:

I've worked in real screened rooms, without air conditioning at the
old Cincinatti Electronics plant (Glenndale-Milford Road)in the mid
'70s.

Ditto. At Granger Assoc, we needed to build a temporary screen room
in order to accurately tune and measure some radios. Instead of
buying a proper Lindgren screen room, we built our own with lumber and
brass screening material, which was much cheaper and easier to move if
necessary. No finger stock on the door, but some foam behind the
brass screening provided adequate spring action. The isolation wasn't
perfect, but it worked. The screening gave the room access to the
building air conditioner, so there was no overheating. Unfortunately,
it became my office for a short while, resulting some rather bad
jokes.

At Intech Inc, we had a shield transmitter burnin room. At the time,
copper was relatively cheap, so the room was clad in copper sheet
metal with no screening. I would hate to think what that would cost
today. Heat buildup was substantial, so we used the thermal
conductivity of the copper to move away much of the heat. The door
leaked somewhat, so we contrived an arrangement that made it look (and
weigh) like a bank vault door. That worked.

--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

 

[Jeff Liebermann]

On Thu, 18 Aug 2011 19:45:11 +0800, Man-wai Chang
<toylet.toylet@gmail.com> wrote:

On 18/08/11 1:16 PM, Jeff Urban wrote:
What you need is a bucket of water.

I wanna shield it from RF, not destroying it.

Destroy the phone or the RF? If the RF, you can neutralize the
deterimental effects of RF using Orgonite stones.
<http://www.orgone.net/05_orgone_energy_and_dor.html>
<http://cellularpcs.com/2011/04/03/orgonite-the-cure-for-cell-towers/>
When placed near a source of RF, they are known to aborb the harmful
radiation, leaving only natural radio waves, which can then safely and
easily be shielded with tin foil or absorbed in a carbon foam sponge.

Also see "gifting" with Orgonite:
<http://www.youtube.com/user/ctbusters>
<www.youtube.com/watch?v=xZMlbRBRuSo>

--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

 

[Michael A. Terrell]

Jeff Liebermann wrote:

On Thu, 18 Aug 2011 09:57:51 -0400, "Michael A. Terrell"
mike.terrell@earthlink.net> wrote:

I've worked in real screened rooms, without air conditioning at the
old Cincinatti Electronics plant (Glenndale-Milford Road)in the mid
'70s.

Ditto. At Granger Assoc, we needed to build a temporary screen room
in order to accurately tune and measure some radios.

These were in what had been a Crosley machine shop during W.W.-II,
and the test equipment ran so hot that it was over 100F some nights. I
worked second shift, so it was already geting hot from the day shift. I
was doing QA work on the PRC-77 manpack radio. I prefered running the
SATE, in it's aluminum computer booth, with the AC set at 68 F. The
SATE system was controlled by a four bit Data General mini-computer.

Instead of
buying a proper Lindgren screen room, we built our own with lumber and
brass screening material, which was much cheaper and easier to move if
necessary. No finger stock on the door, but some foam behind the
brass screening provided adequate spring action. The isolation wasn't
perfect, but it worked.

I had enough new brass screening to build a proper shieleded room but
it was lost in a rental warehouse when I got sick, 10 years ago. I am
thinking about using two layers of foil back foam insulation to build
one for my home shop. I had a box of phosper bronze finger stock that
should be enough to seal the door, if it survived the last huricane.

The screening gave the room access to the
building air conditioner, so there was no overheating. Unfortunately,
it became my office for a short while, resulting some rather bad
jokes.

At least you didn't have to wear your foil beanie at work. ;-)

At Intech Inc, we had a shield transmitter burnin room. At the time,
copper was relatively cheap, so the room was clad in copper sheet
metal with no screening. I would hate to think what that would cost
today. Heat buildup was substantial, so we used the thermal
conductivity of the copper to move away much of the heat. The door
leaked somewhat, so we contrived an arrangement that made it look (and
weigh) like a bank vault door. That worked.

 

[Paul Hovnanian P.E.]

Ian Field wrote:

"Jeff Liebermann" <jeffl@cruzio.com> wrote in message
news:908l479mk7jl7im259mubjltgl8vcd50g8@4ax.com...
On Tue, 16 Aug 2011 21:01:07 +0800, Man-wai Chang
toylet.toylet@gmail.com> wrote:

I threw it into a tin can then invert it. It still rang when I dialed
its number.

Did you put anything over the open end of the tin can?

Must I use aluminium foil? Why does Al make a difference?

Because aluminum is known to block the government mind control rays
that are forcing you to post such drivel. With an aluminum foil hat,
you will be safe from cell phone radiation and mind control rays.


Putting head in microwave oven is more permanent cure for mind control
rays.

You can't just stick your head in and microwave it. There's a door
interlock to deal with.

The head must be severed to put it in with the door closed. Then, the whole
microwaving thing becomes moot.

--
Paul Hovnanian mailtoaul@Hovnanian.com
------------------------------------------------------------------
Porsche 928: 0 to c in 2.125 years, 2.435 light-years per mile^3 of gas

 

[Ian Field]

"Paul Hovnanian P.E." <paul@hovnanian.com> wrote in message
news:AfWdndUx98bq98jTnZ2dnUVZ_gWdnZ2d@posted.isomediainc...

Ian Field wrote:


"Jeff Liebermann" <jeffl@cruzio.com> wrote in message
news:908l479mk7jl7im259mubjltgl8vcd50g8@4ax.com...
On Tue, 16 Aug 2011 21:01:07 +0800, Man-wai Chang
toylet.toylet@gmail.com> wrote:

I threw it into a tin can then invert it. It still rang when I dialed
its number.

Did you put anything over the open end of the tin can?

Must I use aluminium foil? Why does Al make a difference?

Because aluminum is known to block the government mind control rays
that are forcing you to post such drivel. With an aluminum foil hat,
you will be safe from cell phone radiation and mind control rays.


Putting head in microwave oven is more permanent cure for mind control
rays.

You can't just stick your head in and microwave it. There's a door
interlock to deal with.

Undo half dozen screws - lift off cover - solder mains lead to transformer
tags - insert head and hit wall socket switch.

Or just jam a couple of plastic forks in the door catch slots.