Reception - SIM Card Connection

I have been following the banter for a few days and looking for a reason why my reception isn't as good as I expected it to be.
While I am not an engineer or electronics expert, I did conclude that the only part of the iPhone 4 that wasn't completely designed and manufactured with Apple's strict quality control, R&D, testing and trials was the AT&T produced mini-sim card. A small production error of even .5-1 mm of the border puts one of the contacts of the SIM card in contact with the stainless steel SIM card holder. I used regular electrical tape making sure not to cover where the contacts of the phone touched the SIM card and have seen over the past 1 and a half days much better, faster and clearer reception. From my experiment I find it plausible that the SIM card-SIM card tray contact produces an unfavorable condition for reception. I used dry erase marker to see if there was contact between the two metal surfaces and found there was. I marked the card and found marker on the tray. Not very scientific but effective none the less.
Curious if anyone else is able to duplicate my results....
I must say, it is an awesome device.

I had a no sim card issue every two hours it was saying there was no sim card got tried of messing with the phone because of the ant. problem and the no sim card I returned my phone i'm a every technical guy man this would make a lot of sense if the sim card is shorting out with 3g ant then you grab the phone causing to short out with the wi/fi / bluetooth side i,m going to try this experiment with my employe Iphone 4 will get back with you tomorrow or you can contact me at [email protected]

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