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From the Q&A session: >10:43AM Ryan from gdgt: You showed people almost covering the entire phone in their hand, but on the iPhone 4 it can happen with just a

From the Q&A session: >10:43AM Ryan from gdgt: You showed people almost covering the entire phone in their hand, but on the iPhone 4 it can happen with just a touch. Can you explain that difference? Bob: When you touch the phone, you put yourself between the signal and your phone, so when you touch that spot you can attenuate the signal, and if you grip it with your whole hand, you can attenuate it even more. We don't build phones with an antenna on top... >Hmm, that didn't really sound like an answer to us.

ZeroGravitas 16y ago
There's some Apple bloggers collecting evidence that this applies to all phones, with excerpts from manuals and such. http://dontholditwrong.tumblr.com/ http://dontholditwrong.tumblr.com/ Interestingly almost all of them say "don't touch the external anntenna" (as in the old-fashioned stick out the top kind) yet no-one has connected these statements with the revolutionary design decision of making the external antenna into the part of the phone you hold.