Apple has posted a new webpage to demonstrate how different grips cause attenuation on many popular smartphones.
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
BlackBerry Bold 9700
In our tests, the BlackBerry Bold 9700 dropped from 5 bars to 1 bar when held in a way that attenuated the signal.
HTC Droid Eris
In our tests, the HTC Droid Eris dropped from 4 bars to 0 bars when held in a way that attenuated the signal.
Samsung Omnia II
In our tests, the Samsung Omnia II dropped from 4 bars to 1 bar when held in a way that attenuated the signal.
Read More
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
BlackBerry Bold 9700
In our tests, the BlackBerry Bold 9700 dropped from 5 bars to 1 bar when held in a way that attenuated the signal.
HTC Droid Eris
In our tests, the HTC Droid Eris dropped from 4 bars to 0 bars when held in a way that attenuated the signal.
Samsung Omnia II
In our tests, the Samsung Omnia II dropped from 4 bars to 1 bar when held in a way that attenuated the signal.
Read More