[citation][nom]wotan31[/nom]a) All smart phone shave the same problem. Seem plausible to me, when this story first developed I googled the issue and found lots of stories, youtube videos, forum comments complaining about exactly the same problem on lots of other phones (ie when you hold the phone in a certain way, especially with weak reception, you get problems and dropped calls). I posted links to all those stories and videos in other comment threads on Daily Tech.b) No other handset maker has come up with a solution to this problem. I haven't found any after searching quite a bit. Anybody found any handset maker claiming to have a solution?c) The iPhone 4 seems to generally have better reception according to lots of bloggers, users and journalist testing/reviewing the iPhone 4, but is generating about 1% more complaints about dropped calls caused by the specific issue in questiond) Apple are offering a complete refund on demand, a free case (which should completely solve the problem) and a refund for anyone who has already bought a case.e) The iPhone has been for less than a month and Apple have offered a comprehensive account of the issue, taken a public Q&A session on it and offered complete refunds or a free case which should solve the problem. Given the time needed for the issue to be raised by users, picked up the media and examined by Apple engineers this seems pretty prompt to me.[/citation]
All phones have a problem when you block the antenna. What Apple was referring to was this fact. People are not realizing though, there is more to it than meets the eye. A typical smartphone with internal antenna will be vulnerable to the user placing their palm over the antenna while the phone is pressed against the ear. In this situation, you have a sandwich with the antenna surrounded by bags of water (your hand and your head), and you get massive attenuation of the cell signal. The iphone4 is less susceptible to this kind of interference because the antenna is spread out around the edge of the phone. Most likely, you will only block a few small areas where your fingers are holding the phone. So once you take care of the skin-touching-antenna issue by putting on a bumper, the iphone4 antenna is a pretty good design. In addition, Anandtech has tested the phone, and found that it has much better signal to noise ratio than other phones. So, as reported in other reviews, the iphone4 SHOULD have much better reception and sensitivity. Anand has found that it will work reliably down to a -113dBm signal level. That's way beyond the dropped-call threshold for other phones, such as the iphone3GS. Anand also vindicated Apple's claim about the signal display. He found that the bottom 4 bars of the display was squeezed into a tiny range of signal strength, approx. 10dBm wide, while the 5th bar covered approx. 40dBm of usable signal strength. So when you are in a weak signal location, you are down in the bottom 10dBm range, and a very small change in signal strength (such as when you death-grip the phone) will cause a dramatic change in the bar display. Apple is probably addressing this by spreading out the bars more evenly in their next ios4 software patch. I am surprised that in a technical website like this, nobody is actually looking at data and making an informed decision. Instead, everyone has joined this massive media witch hunt and helping to burn Apple at the stake.
/www.slashgear.com/iphone-4- [...] t-1594059/ Now i would call that a fix[/citation]
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