how to reduce / shield phone radiation...?

[jprint714]

I’ve notice that the Blackberry’s seem to have rather high Specific Absorption Rate (or SAR) for many of their phones. I’m considering getting a 8220 flip and was wondering if there were any ideas about how to shield or reduce the radiation. For example, does anyone know about the airtube headsets or the SAR shields or any else at all? Thanks very much!

[apoc90]

Jawbone bluetooth.


Seriously, it's the best accessory I've ever had. I use it every day. It works better than anything you can imagine.

[Pete6]

If this is an issue for you and you are one of the approximately 1 in 1000 people who are mildly electro-sensitive then I would choose another phone with a lower SAR number.

It is extremely difficult to shield electromagnetic radiation AND keep the phone connected to the network.

Acoustic coupling headsets help as you rightly say. However the phone is still happily radiating away in your pocket or purse. Even bluetooth headsets radiate somewhat even though it is a tiny amount.

Very little can be done to reduce this.

Te best way to reduce this radiation is to use the phone less and stay away from towers completely. Remember the inverse square law of doubling the distance to quarter the power.

[tmv112]

Originally Posted by jprint714

I’ve notice that the Blackberry’s seem to have rather high Specific Absorption Rate (or SAR) for many of their phones. I’m considering getting a 8220 flip and was wondering if there were any ideas about how to shield or reduce the radiation. For example, does anyone know about the airtube headsets or the SAR shields or any else at all? Thanks very much!

you could always put aluminum foil on your ears while talking---it may absorb some of the radio frequency transmissions--

[Mamaluka]

I put my phone in an empty can of Kram Mars appetizer. It's the perfect size for a 8330.
Serve with pride
Eat and enjoy

Posted from my CrackBerry at wapforums.crackberry.com

[jprint714]

Thanks very much for the bluetooth suggestion. Others have made similar recommendations.

I'm not mildly electro-sensitive, but want to be mindful of mitigating a phone's radiation, whenever possible. Just check out RIM's SAR levels on CNET or elsewhere -- they're comparatively higher than many other cell phones. Again, shielding such radiation might not be possible but reducing it seems tenable. Any other thoughts? Thanks again...

[Pete6]

1). If you are really worried about this then it would perhaps be better to choose a different phone.

2). Using the phone less keeps exposure to a minimum.

3). SWitching it off when not in use clearly elimintates exposure whilst off.

4). staying clear of the phone whilst it is switching on will help too.

5). Using the phone in a high signal area whilst stationary (not in a moving vehicle) helps.

6). Avoid use in heavily built up areas so as to reduce multi-pathing.

7). Whilst not in use but switched on, increased distance between you and the phone (inverse square law) will further reduce exposure.

[jprint714]

Thanks. Anyone else have other ideas on some of the devices out there that mitigate EMF/radiation? Thank you...

[branta]

Pete6 is correct. The only way to reduce exposure is to apply the inverse square law. Create more distance between you and the source. You can do this by using bluetooth, or speakerphone.

Gadgets don't work unless they get hot in use or have a grounding path, the RF energy they might absorb has to go somewhere. This is basic Physics 101, you can't destroy energy, only convert it to a different form.

[xxxxpradaxxxx]

Isn't it just as bad as useing a Bluetooth?

I see people wearing them all day, as if it were jewelry.

That has to be emitting some form of energy.

The Phone is Receiving a Signal, then Sending that Signal To the Bluetooth...

Right?

I'm not to sure how Bluetooth works, I am very interested in finding out!

Also, wouldn't WiFi also be similar?

Walking through a Constant "Net" of Signals?

Also, Haven't VZW BlackBerry's been shown to give off more SAR???

[xxxxpradaxxxx]

LOL

This Thread Makes Me Crave a Nice Thick Lead Box.

If it could shield Superman from Kryptonite Radiation-

It Shouldn't have any issues with Cellular Signals.

[branta]

Bluetooth is very low power level. Maximum working range for Class 1 is 100m, and for Class2 about 10m. I don't have the permitted RF power outputs to hand, but I expect much less than 1 milliWatt compared with up to 2 Watts for the phone on max power.

[senectus]

Many years ago when bluetooth first came out I forked out nearly $500 for the first unit to hit the shelves.

Iwas an ericsson unit that had a warning in the booklet that said "Extended use of bluetooth microphone may result in the drying out of the eyeball"


I'm not convinced that Mobile Phones are a big risk, but neither do I think that having a bluetooth unit strapped to your head all day every day is a great idea either :-P

Originally Posted by Pete6

Te best way to reduce this radiation is to use the phone less and stay away from towers completely. Remember the inverse square law of doubling the distance to quarter the power.

AHHH i feel like im in my principles of radiography 2 class again!!! The inverse square law is different for my use, we need 4x more mAs to penetrate when we are doubling the distance!(which in essance is saying the same thing, we need more KV and more mAs to adequately penetrate the part - the farther away the SID the less power behind the radiation).

I hate the laws of radiation....too much to remember You should be more worried about how many CT scans and xrays you have. One abd/pelvis CT is comparable to over 400 xrays!

Anyways, i'm out of school for the day so no more radiation thinking from me

[BBartist]

actually the radition emmited from the phone will eventually cause a benign bluetooth tumor to grow right on the inside of your ear!

honestly never thought about something like this...then again now that you think about it my head does hurt when I sit realllllly close to the microwave!

-just messin