Talk about a waste of resources...and stating the obvious!
Consumer Reports took three separate new iPhone 4s into the controlled environment of their radio frequency-insulated testing chamber. That room is insulated from all outside RF signals, so there’s nothing to interfer with the tests.
Once inside the chamber, the testers set each iPhone to connect with a base station emulator a piece of testing equipment that acts like one of AT&T’s cellphone towers. They then tested the iPhones’ ability to connect when held various ways.
“Our engineers found that when you place your finger on the gap between the two antennas on the lower left hand side of the iPhone 4, signal strength can drop by about 20 decibels — and that’s enough to drop a call,”