Some purchasers of the latest Apple iPhone have been experiencing reception problems. Apparently, the band around the phone is the phone’s antenna, and when held in a certain way, the antenna doesn’t function as well as it should.
Well, doh! Any amateur radio operator could tell you that you probably don’t want to touch your antenna while you’re transmitting and probably not while you’re trying to receive, either. I guess there aren’t many hams on Apple’s engineering staff.
For more technical information, listen to this IEEE podcast with antenna engineer Spencer Webb.