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  1. #1
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    Dec 2008
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    Default Apple launch the "smartphone antenna performance" page

    Every smartphone has a cellular antenna. And nearly every smartphone can lose signal strength if you hold it in a certain way. To demonstrate this, Apple has tested iPhone 4 alongside other smartphones.
    <blockquote>The opposite of amplification, attenuation happens whenever a signal is obstructed. All antennas — including television, radio, GPS, and cellular antennas — can experience attenuation. And with most antennas, the density and composition of the human hand can cause attenuation to a greater degree than some other materials. On a mobile phone, signal loss typically occurs when your hand attenuates the most sensitive part of the antenna. In the photos and videos below, we demonstrate how different grips cause attenuation on many popular smartphones — including iPhone 4 and iPhone 3GS.1</blockquote>Read more
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  2. #2
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    Mar 2009
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    Default Re: Apple launch the \

    No Nokia phone. Wonder why.


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