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Is a wireless office (2.4GHz) *completely* safe for our health?

 
 
Shiperton Henethe
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Posts: n/a

 
      09-18-2003, 08:54 AM


Hi

Help - my office is about to get zapped at 2.4GHz!
Is that actually safe?!

Apologies for the cross-posting but
I wanted to canvass some opinions on the health impact
of "wireless offices".

We are about to install a "wireless office".
I wanted get a balanced spread of opinions.

Apparently it transmits at a frequency of 2.4GHz (802.11b) .

I am concerned that if we sit all day in an
office flooded with (what is that frequency in layman's terms
- short wave radio or something??) EM waves
that it might not be very good for our health!

Clearly a high-enough power of EM waves will
eventually damage us... but does anyone know what
intensity of 2.4GHz is actually safe?

- Are there any scientific papers to prove it is safe?

- How safe is a "wireless office" likely to be compared
to say 20 minutes/day on a mobile phone?

- Has anyone scientifically measured the impact of
these type of frequencies on the human aura
(which I gather does have atleast *some* basis
in science)

We dont really *need* a wireless office. It's basically
just showing off (and saving a little on wiring costs)...!

==> Any views?


Ship

P.S. I also us a "stylus" mouse replacement pointer for
my PC - which I assume works on some kind of EM radiation,
because it knows where you are pointing without actually
touching. Is that safe? Will that be *completely* safe
combined with the "wireless office" - or could we get
standing waves etc building up...?

P.P.S
FWIW, here's what we are about to buy from www.dlink.com:

>>>>

1 * DWL-1700AP (Out door access point for main house range 600m) @ £899.00
1 * DWL-900AP+ Repeater stables @ £106.24
X * PCMCIA Wireless cards for laptops @ £47.49
X * PCI cards for PC systems @ £54.99
(X) reflects the number of computers or laptops you have that will require
wireless access.
>>>>


P.P.S. Do these wireless offices and mobile phones
interfere with each other?





 
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Selar Rao
Guest
Posts: n/a

 
      09-18-2003, 11:17 AM
2.4GHz is the frequency your microwave oven operates at.

Exposure to microwave radiation cooks things. The part of the human body
that is most susceptible to being cooked is the brain. However, in your
case, you need fear no consequences, as yours already appears to be fried.

"Shiperton Henethe" <(E-Mail Removed)> wrote in message
news:3f697200$0$24105$(E-Mail Removed). ..
>
>
> Hi
>
> Help - my office is about to get zapped at 2.4GHz!
> Is that actually safe?!
>
> Apologies for the cross-posting but
> I wanted to canvass some opinions on the health impact
> of "wireless offices".
>
> We are about to install a "wireless office".
> I wanted get a balanced spread of opinions.
>
> Apparently it transmits at a frequency of 2.4GHz (802.11b) .
>
> I am concerned that if we sit all day in an
> office flooded with (what is that frequency in layman's terms
> - short wave radio or something??) EM waves
> that it might not be very good for our health!
>
> Clearly a high-enough power of EM waves will
> eventually damage us... but does anyone know what
> intensity of 2.4GHz is actually safe?
>
> - Are there any scientific papers to prove it is safe?
>
> - How safe is a "wireless office" likely to be compared
> to say 20 minutes/day on a mobile phone?
>
> - Has anyone scientifically measured the impact of
> these type of frequencies on the human aura
> (which I gather does have atleast *some* basis
> in science)
>
> We dont really *need* a wireless office. It's basically
> just showing off (and saving a little on wiring costs)...!
>
> ==> Any views?
>
>
> Ship
>
> P.S. I also us a "stylus" mouse replacement pointer for
> my PC - which I assume works on some kind of EM radiation,
> because it knows where you are pointing without actually
> touching. Is that safe? Will that be *completely* safe
> combined with the "wireless office" - or could we get
> standing waves etc building up...?
>
> P.P.S
> FWIW, here's what we are about to buy from www.dlink.com:
>
> >>>>

> 1 * DWL-1700AP (Out door access point for main house range 600m) @ £899.00
> 1 * DWL-900AP+ Repeater stables @ £106.24
> X * PCMCIA Wireless cards for laptops @ £47.49
> X * PCI cards for PC systems @ £54.99
> (X) reflects the number of computers or laptops you have that will require
> wireless access.
> >>>>

>
> P.P.S. Do these wireless offices and mobile phones
> interfere with each other?
>
>
>
>
>



 
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j j
Guest
Posts: n/a

 
      09-18-2003, 12:55 PM

"Shiperton Henethe" <(E-Mail Removed)> wrote in message
news:3f697200$0$24105$(E-Mail Removed). ..
>
>
> Hi
>
> Help - my office is about to get zapped at 2.4GHz!
> Is that actually safe?!


well, if you haven't had kids yet I suggest saving some sperm in the freezer
because your balls won't appreciate being put in the microwave...



 
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Martin²
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      09-18-2003, 03:21 PM
>However, in your case, you need fear no consequences, as yours already
appears to be fried

>well, if you haven't had kids yet I suggest saving some sperm in the

freezer
>because your balls won't appreciate being put in the microwave...


How nice to have helpful people on this group !

The WiFi operates at higher frequency then mobile phones and should not
interfere with each other.
Yes, it's microwave radiation much like the mobile phone network, not
considered dangerous at the low power used, but as for long term effects -
nobody knows for sure.
Regards,
Martin


 
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Rick Russell
Guest
Posts: n/a

 
      09-18-2003, 03:31 PM
In article <3f697200$0$24105$(E-Mail Removed)>,
Shiperton Henethe <(E-Mail Removed)> wrote:
> Apparently it transmits at a frequency of 2.4GHz (802.11b) .
> I am concerned that if we sit all day in an
> office flooded with (what is that frequency in layman's terms
> - short wave radio or something??) EM waves
> that it might not be very good for our health!


It's the microwave range.

> Clearly a high-enough power of EM waves will
> eventually damage us... but does anyone know what
> intensity of 2.4GHz is actually safe?


The maximum transmit power allowed is 1 watt, but most home/office
802.11b/g devices operate in the sub-100 milliwatt range.

Of course, the actual transmitted power depends on the antenna. A
well-designed dipole antenna might boost the transmitted power from an
802.11b/g device to slightly more than 100 milliwatts.

> - Are there any scientific papers to prove it is safe?


You can't really prove that something is safe. At best, you can only
note the lack of observable effects.

> - How safe is a "wireless office" likely to be compared
> to say 20 minutes/day on a mobile phone?


It's unclear, since studies on the safety of mobile phones have yet to
demonstrate any significant and reproducible health effects.

From a strict exposure standpoint, mobile phones are much more
powerful, and operate closer to the human body.

> - Has anyone scientifically measured the impact of
> these type of frequencies on the human aura
> (which I gather does have atleast *some* basis
> in science)


I'm going to guess "no".

> P.P.S. Do these wireless offices and mobile phones
> interfere with each other?


I don't think any of the mobile phones are using 2.4 Ghz yet, but I
could be wrong. Typical frequencies for mobile phones are 900Mhz and
1.8Ghz.

Rick R.
 
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Paul Landregan
Guest
Posts: n/a

 
      09-18-2003, 04:25 PM
>
> I don't think any of the mobile phones are using 2.4 Ghz yet, but I
> could be wrong. Typical frequencies for mobile phones are 900Mhz and
> 1.8Ghz.
>
> Rick R.


Is 3G around the 2.2GHz mark?

Bluetooth is 2.4GHz


 
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Robert McCarty
Guest
Posts: n/a

 
      09-18-2003, 06:40 PM
see below

Shiperton Henethe wrote:

> Hi
>
> Help - my office is about to get zapped at 2.4GHz!
> Is that actually safe?!
>
> Apologies for the cross-posting but
> I wanted to canvass some opinions on the health impact
> of "wireless offices".
>
> We are about to install a "wireless office".
> I wanted get a balanced spread of opinions.
>
> Apparently it transmits at a frequency of 2.4GHz (802.11b) .
>
> I am concerned that if we sit all day in an
> office flooded with (what is that frequency in layman's terms
> - short wave radio or something??) EM waves
> that it might not be very good for our health!
>
> Clearly a high-enough power of EM waves will
> eventually damage us... but does anyone know what
> intensity of 2.4GHz is actually safe?
>
> - Are there any scientific papers to prove it is safe?
>
> - How safe is a "wireless office" likely to be compared
> to say 20 minutes/day on a mobile phone?
>
> - Has anyone scientifically measured the impact of
> these type of frequencies on the human aura
> (which I gather does have atleast *some* basis
> in science)
>
> We dont really *need* a wireless office. It's basically
> just showing off (and saving a little on wiring costs)...!
>
> ==> Any views?
>
> Ship
>
> P.S. I also us a "stylus" mouse replacement pointer for
> my PC - which I assume works on some kind of EM radiation,
> because it knows where you are pointing without actually
> touching. Is that safe? Will that be *completely* safe
> combined with the "wireless office" - or could we get
> standing waves etc building up...?
>
> P.P.S
> FWIW, here's what we are about to buy from www.dlink.com:
>
> >>>>

> 1 * DWL-1700AP (Out door access point for main house range 600m) @ £899.00
> 1 * DWL-900AP+ Repeater stables @ £106.24
> X * PCMCIA Wireless cards for laptops @ £47.49
> X * PCI cards for PC systems @ £54.99
> (X) reflects the number of computers or laptops you have that will require
> wireless access.
> >>>>

>
> P.P.S. Do these wireless offices and mobile phones
> interfere with each other?


OK..some common sense finally being injected! YES you DO have a
legitimate complaint. I. amoung other expertises, am primarily an R_F
engineer. ( changed to health after retirement)

If one is sitting with a saturated field of RF..( as in using a closely
held
cell phone) the effect on the brain can indeed be deleterious. One MUST
be outside the one meter zone ("near field") to be evn remotely safe!
I shudder every time I see someone using a portable cellular phone that
has
no reflector as does Motorola and a very few others who KNOW the problem.

Motorola was challenged with this problem in the very beginning ans makes
one
of the very FEW SAFE phones. I noted another Japanese model recently.

To use a cellular phone safely, it MUST be at least one meter ( about 37
inches)
away from the user. SOME folks actually have the "Extended ear piece"
and are
relatively safe as a result. ( a microphone is built-into the ear piece
as well because
one may actually talk via the ear canal as far as close proximity is
concerned.)

The old "disease" known as HODGKINS is quite alive and well with
cellular users.
Be advised and pass this on..tyoo FEW even relaize it! It MAY get ALL
of the
phone maufacturerss to ntice that the public is NOT to be ignored for
the sake of
profit!
Dr. B-0b1 ph.D

 
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John Antypas
Guest
Posts: n/a

 
      09-18-2003, 06:46 PM
Now people, let's be nice. An honest question was asked, and if you watch
TV alot, hysteria does sell. Not everyone has a background in this stuff.

That said, in theory, microwave radiation isn't good for cellular tissues,
however, neither is ultraviolet or X-ray radiation. And, you are getting
stronger of doses of both from the sunlight outside the office and your
monitor.

In addition, all energy is slowed when it hits things, like bone and by
distance (power = inverse sqaure.) I can't swear to the figures, but as I
recall, a cell is either 600 mw or 60 mw (correct me folks). Your average
PC at your desk maybe puts out 50mw TOPS. Move a couple of meters and the
power is far less (1/d^2). The AP nearby, by the time it gets to you, puts
out even less power. Now add bone, and what gets to your brain is almost
unmeasurable.

As a neurophysiologist, I do know something about this, and no, I don't work
for cellular companies, or wireless gear companies. However, given relative
differences between the various type of RF energy you're exposed to
everyday, this risk is VERY low. You have a far greater chance of getting
radiation exposure waiting in line at the Starbuck's coffee cart outside or
by standing in front of the company microwave oven.

Put another way, of all the things that can kill me, hurt me, etc. I have a
MUCH greater chance of being hit by an SF MUNI bus than by this.

Hope this was actually helpful.
"Shiperton Henethe" <(E-Mail Removed)> wrote in message
news:3f697200$0$24105$(E-Mail Removed). ..
>
>
> Hi
>
> Help - my office is about to get zapped at 2.4GHz!
> Is that actually safe?!
>
> Apologies for the cross-posting but
> I wanted to canvass some opinions on the health impact
> of "wireless offices".
>
> We are about to install a "wireless office".
> I wanted get a balanced spread of opinions.
>
> Apparently it transmits at a frequency of 2.4GHz (802.11b) .
>
> I am concerned that if we sit all day in an
> office flooded with (what is that frequency in layman's terms
> - short wave radio or something??) EM waves
> that it might not be very good for our health!
>
> Clearly a high-enough power of EM waves will
> eventually damage us... but does anyone know what
> intensity of 2.4GHz is actually safe?
>
> - Are there any scientific papers to prove it is safe?
>
> - How safe is a "wireless office" likely to be compared
> to say 20 minutes/day on a mobile phone?
>
> - Has anyone scientifically measured the impact of
> these type of frequencies on the human aura
> (which I gather does have atleast *some* basis
> in science)
>
> We dont really *need* a wireless office. It's basically
> just showing off (and saving a little on wiring costs)...!
>
> ==> Any views?
>
>
> Ship
>
> P.S. I also us a "stylus" mouse replacement pointer for
> my PC - which I assume works on some kind of EM radiation,
> because it knows where you are pointing without actually
> touching. Is that safe? Will that be *completely* safe
> combined with the "wireless office" - or could we get
> standing waves etc building up...?
>
> P.P.S
> FWIW, here's what we are about to buy from www.dlink.com:
>
> >>>>

> 1 * DWL-1700AP (Out door access point for main house range 600m) @ £899.00
> 1 * DWL-900AP+ Repeater stables @ £106.24
> X * PCMCIA Wireless cards for laptops @ £47.49
> X * PCI cards for PC systems @ £54.99
> (X) reflects the number of computers or laptops you have that will require
> wireless access.
> >>>>

>
> P.P.S. Do these wireless offices and mobile phones
> interfere with each other?
>
>
>
>
>



 
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Tim Tyler
Guest
Posts: n/a

 
      09-18-2003, 07:05 PM
In sci.life-extension Shiperton Henethe <(E-Mail Removed)> wrote:

: ==> Any views?

News stories on a related issue:

``Teenage rats should not use mobile phones''

- http://www.mobile.commerce.net/story...ry_id=2722&s=3


``Mobile phones make rats forget''

- http://www.abc.net.au/science/news/stories/s71123.htm


``Mobile Phones Kill Brain Cells in Rats

- http://www.prevent.se/english/newsle...ls_in_rats.asp


``Mobile phones 'may trigger Alzheimer's'''

- http://news.bbc.co.uk/1/hi/health/2728149.stm


``Mobile phones don’t cause cancer – in rats''

- http://www.electronicsnews.com.au/ar...e/0c00e99e.asp

Some abstracts on the subject:

- http://infoventures.com/emf/top/spec...iscussion.html
--
__________
|im |yler http://timtyler.org/ (E-Mail Removed)
 
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Rick Russell
Guest
Posts: n/a

 
      09-18-2003, 07:15 PM
In article <(E-Mail Removed)>,
Robert McCarty <(E-Mail Removed)> wrote:
> If one is sitting with a saturated field of RF..( as in using a
> closely held cell phone) the effect on the brain can indeed be
> deleterious. One MUST be outside the one meter zone ("near field")
> to be evn remotely safe!


As an RF engineer, you probably know that the transmitted power is
just as important as the range. "One meter" might be a reasonable
approximation for certain devices, but not others. It's certainly not
reasonable for 802.11b (~100 milliwatts transmit power).

Looking at power absorption numbers, the difference between the high
numbers and the low numbers is not very much -- 1.5 watts at the high
end, 0.8 or so at the low end. I'm not sure why I should be worried
about less than a watt. It's certainly not enough to ionize anything
at those frequencies.

Rick R.
 
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