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I am an iPhone developer and I have to have the phone near my Mac.
My Mac headphone (mini-jack) output is connected to my TV audio in (mini-jack). I have this for years and I always worked near my old iPhone 3G without problems.
Since I bought an iPhone 4, now I listen an annoying interference, like white noise, on the tv speaker. I mute the TV and the problem vanishes. I remove the SIM card from iPhone 4 and the problem is solved, but I cannot disable the iPhone, as I use it to test and it have to stay near the computer/TV (the TV is my secondary display). No, the TV has no optical input, so I have to continue using this input. No for the second question you may ask too, that is, my mac has a mini-DVI video out that do not carries audio, so I cannot use mini-DVI to HDMI, because I will have no audio. So, I am stuck with mini-jack audio from Mac and on TV.
Is there something I can do to solve the problem? Some shielded cable or something, that can block the cellular signal from entering on the cable and being heard on the TV?
thanks.
Thanks! I found one here, installed and the problem reduced a little bit, but while I was installing it, I discover the problem was stranger than I thought. The interference makes speaker vibrate and that vibration makes the metal plate at the back of my Tv to vibrate too. That vibration is what I was hearing. I pressed the plate with my finger and the noise vanished. The problem is that this is a barely brand new TV, with less than 3 months. I tapped the plate with my finger and now the noise is gone. Thanks anyway. – SpaceDog – 2010-09-23T19:51:16.653