Macosxhints.com provided a very cool tutorial today on how to prevent electromagnetic interference with your iPhone. If your constantly hearing annoying noises when your near speakers with your iPhone, this will stop it.

1. All you have to do it cut out 2 inch x 3 inch piece of aluminum foil
2. Fold the longer side in half to make it 2 inch x 1.5 inch.
3. Tape the foil to the bottom right corner with electric tape like the picture above (longer side horizontal to the bottom).

It might be a little eye sore, but if you have it in a case, you won’t see it.

The Testing for Signal Differences

I have gone over 4 hours so far with no problems. I even tested this on an hour car drive from work with no issues.

I went to the store and bought more foil for pictured results, to compare two iPhones side by side.

Pictured Results

Here’s with double the foil recommended & bigger (on the right) and an iPhone with no foil (to the left)

Both phones have the same signal for 3 mins (kinda blurry sorry)

Then I tried with massive foil and bigger (guessing about 12+ layers)

Here it is on the phone, notice it takes up half of the back.

Same signal (full strength)

I covered most of the phone except for the top with about 10 layers of foil and lost 2 bars

Decided to cover the whole phone with foil to see the results

All Covered results - Same as mostly covered (pic 1 of 2)

All clovered pic 2 of 2

Well the results are pretty clear, it does not effect signal strength if you go by the directions.

This entry was posted on Monday, January 7th, 2008 at 3:47 pm and is filed under Apple, Apple Hardware, Tips, iPhone. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.