[Off-topic] jago25_98:
You're probably not going to like this thread.

SAR levels... phone radiation, that kind of thing.

This isn't something I worry about that much but I've noticed some things since upgrading my phone over the years. Also, I've been in some areas with lots of radio waves and then in areas where there are very few radio waves and I have to say

If you think you don't believe in radio as pollution try standing in the middle of the rainforest where there is no power, no phone signal and you'll feel a sense of peace than cannot be compared to in an isolation tank in a city.

When you do this contrast a number of times I come back to the city and there's this sense of buzzing. Bear in mind this is from the ocean to a high rise apartment. I'm 100% sure I'm not imagining it, though I always accept the placebo effect where I could be imagining it, I've seen it so many times now and so clearly I'm adamant the human body's electrical nervous system can be effected by a lot/strong magnetic fields.

Basically I've noticed in years gone by that newer phones seem to feel like they're emitting more power than they did before when idle, but emitting less power when in use.

The reason I think this is because it used to take 20mins on the phone before getting a headache with a Phillips Savvy but that now takes now that takes 35-1hr on a Android gen of device.

However, if I use a modern phone and it's right in the centre of my chest I swear I can feel it. I wonder if there's been any double-blind tests on this. The thing is, I have WiFi on browsing like this and also 3G is at 2 bars but this feeling continues a little in 3G and a very tiny amount in airplane mode. This makes me think there's a magnet in there even during airplane mode. So, is the magnetometer always engaged like it seems to feel? Can we turn that off when not in use to save battery or is that proximity sensor always on?

As I say, I only don't like using the phone with it near my heart, I don't sense any problem anywhere else. Then again, more electrical signals come from the heart to the brain then the other way round so it could be a sensitive area.

Regards bluetooth. I checked out bluetooth headsets because they say the sweep spectrum should reduce area heating and so a SAR rating wouldn't even be possible. But that wasn't what it felt like. I still get headaches with bluetooth headsets, it's just greatly reduced. I figured it's pointless if it's not really working.

After a lot of research I found tube headphones and I use these just for longer calls.

The next thing I'm thinking is to optimise how the phone uses radio and sensors. This should be automated. I'd like to know how to turn off wifi when a connection drops rather than doing it by location in tasker for example. The same sort of thing should be done with GSM & 3G switching so what isn't needed is turned off. All of this meshes nicely with battery life - the 2 are synonymous. Why not enable call forwarding, carry a 2nd phone for GSM and only go out of offline mode for when you need to do something?

However, if my intuition is correct (this is one of the reasons I'm posting this thread), then SAR is just one of 3 radio signals coming out of the phone excluding electricity itself (EMF source).

So,

- so you get headaches during long phone call in the vicinity of the phone?

- do you find it easier to think clearly when on a wired connection compared to WiFi?

- have you thought about this much?

WiFi has been found to effect sperm mobility for definite but other than than it's all pretty unproven. WiFi seems to be lower power but somehow worse than GSM. Not sure about 3G.

However, phones are getting more and more powerful. 3G uses more battery than GSM and WiFi is an additional signal. Then we got 4G WiMax and all the rest on the way. Plus as I mentioned the seemingly minor development of the magnetometer. Is there any limit?

I never used to care that much until I experienced an electrically quiet place and then had to return to the drudgery of the city.

I still feel it's a subtle thing, but the effect for me can actually be very clear now, something that wasn't so for me in the days of GSM only, back then I didn't believe in all this at all.

Another thing I find is that typing on a computer without WiFi is somehow easier to think in a linear way without getting thoughts interrupted. I know, I know, this is a bit much now.

There is less energy coming off of your cell phone's radio transmitter than there is coming off of your computer screen that you interpret as visible light.. but the difference is that light bounces off mostly and if it doesn't it's burning your skin.

So, there's a load of info for you. Also some fixes too. Hopefully these things aren't a problem for you but also I hope to find people to discuss it with.

One thing I never understood was when training in the Air Corp we were taught to keep distance from UHF radios 25 years ago but then in the 90's and 00's phone radiation was not taken seriously at all and we still get people joking about it like it's taboo.

All this is very inconvenient for a tech addict. Obviously I've gone out on a limb with this thread. Be kind :D

Previous threads for reference:

http://xdaforums.com/showthread.php?t=826585

Some comments on previous discussions:

"Radio waves are not ionizing, and thus do not carry enough energy to pose any danger whatsoever"

^ I agree there is no immediate effect, but I disagree that a electromagnetic field from a mobile phone does not interfere with an electromagnetic field from the human nervous system

http://xdaforums.com/showthread.php?t=484313

^ background data. Good to disable to save battery... but does push email need that? If so then personally I might switch to a poll every 30mins and turning off and on data.