Is it Safe to Use a Made-in-China 3G Tablet That Causes Too Much Interference?

Look at the input power or the tablet.
It should give it's input voltage and power.
It can't radiate more power than it takes in.

I don't know what 3g means... if it is wireless, then you can expect nothing but trouble. IMO wireless anything is a recipe for problems. My wireless router was useless, I hard wired it and all the probles vanished.
It is extremely unlikely that it radiates significant power at all. The interference with other devices is probably conducted down the cables (if it has any) and is probably just spikes.
It can easilly meet all relevant standards and still interfere with other devices which are not suitably protected against such interferrence. The EMC (electromagnetic compatibiliy) standards are pretty nonsensical. So it may not even be the tablet that is the problem!

Many wireless problems will be caused by firmware/software conflicts etc too.
Conside the signals flying about through the atmosphere. If you wired something on the same principal, e.g all signals from everyone within a hundred yard radius plus all the commercial stuff in one cable you wouldn't expect it to work would you?
Del

https://en.wikipedia.org/wiki/3G Here Dell, stop using the telegraph and use some new technology! .

Well maybe it was cheaply made and it has no emi schielding and no choke coils.

It is not a health issue but more an issue of interference, the poorly shielded tablet could disrupt other devices that uses wiFi or 3G communication.

Thanks Ekpe. Do you mean that exposure to too much EM radiation has no health implication?

I know this Q wasn't directed at me...
BUT. It's a wireless device ..it's radiating power anyway!
If it radiates spikes which interfere with other equipment, there is no reason to believe this radiation is any more powerful or harmfull that the stuff which it is meant to radiate. We live in a sea of EM radiation, there is no reason to suppose that a TV soap opera radiating through the environment is less harmful than some some random spikes.
Del

No long term effects as we know of, maybe in 30 years we start glowing in the dark, or we start to hear voices in our heads.

The content on those EM waves causes much more damage than the EM fields ever will. Can you imagine how much better off society would be if we didn't keep up with the Kardashians?

Thanks Del. 3g means 3rd generation of mobile telecomm. tech. which implies a higher data transfer rate via the network sim. I agree with you that it can meet all the relevant standards n still cause interference. what I don't know is if the problem is from the tablet itself or the devices not being suitably protected.

Haven't you answered your own question?

"it causes too much interference"

There are laws preventing people from using equipment that generate too much interferences as it can cause problems to others.

It may not be serious if it only disturb your own WIFI but what if it affects your neighbor's pacemaker when he is nearby?

In general, the effects of interferences are mild but do you want to take this risk?

That is why, one should always make sure that the bargains he gets from another country still meets the FCC (US) and other local regulator's limits.

I would trash it. The risk is not worth the savings especially that you have identified that it does have an emission problem. You get what you paid for.

You are making the huge assumption that it is the tablet that is the problem and not immunity problems, incorrect installation, poor earth connections, hardware/firmware incompatibility or simply power supply noise which is the problem.

An item may easilly meet all relevant spec's yet still cause interferrence in some other equipment.
Del

My question is how you got the device. Was it sold in US or did you order it direct? Was there any warranty? If you can possibly do it return it on their nickel and get a replacement. Most of the Chinese companies will do that. If you bought it through some third party direct from China, it was possibly a reject, sold for scrap because it tested bad, and now you see why. It was sold for scrap at first, now you bought it, but it is still scrap. I have purchased a lot of good equipment from China, but have seen a lot of bargins, too good to be true, and they were because I had friends who purchased them and got stuck with worthless items. Before I purchase I check out return and warranty policy unless the item is less than $10. I am not surprised when many of their manufacturers now have US based return facilities for electronic equipment or free return shipping. The cheap items do not, but anything of any quality does. A little research goes a long way. Nothing is cheap if it doesn't work correctly. All the items I have purchased have met emmision standards and performed properly, but by checking first, I know I can return them if they do not. I would throw the item away if they won't honor a warranty and get a good replacement, if it has emmisions, then there is probably other problems that will haunt you later, plus why would you want a portable device that you could only use in your own home. If you take it other places it will bother others.

Thanks all for the good comments. I think I agree with Del that it might just be caused by spikes due to network fluctuations. As I live far from the nearest network mast, I experience a lot of those all day.

If you worry about the danger, just wear a tin foil cap

The radiated RF power is self regulated. On hard to reach areas (rf-wise), the transmitter power increases automatically and vice-versa. This applies to all wireless equipment nowdays, from DECT phones to WI-FI, Bluetooth, cell phone network including 3G and 4G, so "made-in-China" is probably not to blame. Now for the absolute biological effects of RF radiation you will hear many conflicting views. I can't be of much help here, my experience of heating chicken nuggets on the microwave is useless, since the chicken is already dead. S.M.

Thanks, S.M. I absolutely agree wit u.