As part of its iPhone 4 review, AnandTech took an in-depth look at the iPhone 4’s antenna and its signal issues, finding that “cupping the bottom left corner and making skin contact between the two antennas does result in a measurable difference in cellular reception,” but adding, “RF is a strange beast.” According to the review, standard signal strength for a UMTS 3G phone can range from -51 dBm—standing underneath…
