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SynopsisIt has been hypothesised that bridging two antennas on an iPhone 4 with a fingertip detunes them so that there is a noticeable loss in reception.
An experiment was set up to test the hypothesis, results were recorded and showed that no observable effect occurs to an iPhone 4 when the antennas are bridged with a fingertip.Hypothesis.
Touching a point on the lower left hand corner of an iPhone 4 so that the adjacent strips of metal which form the dual antennas separated by a narrow black band are bridged by a fingertip causes the iPhone 4 to lose signal and drop calls.
Experiment.
Three subjects were instructed to hold an iPhone 4 in one hand and apply a finger tip to the two piece antenna structure in the lower left corner in such a way that the black band separating the two antennas was bridged by the fingertip.
Two iPhone 4's were used in the experiment both newly activated, one on the Vodafone Australia network the other on Virgin Australia using the Optus network.
Results
Observation 1. Subject A using iPhone 4 A, Vodafone Australia SIM card 5 bars showing.
Touching the point resulted in 5 bars showing.
Observation 2. Subject B using iPhone 4 A, Vodafone Australia SIM card 5 bars showing.
Touching the point resulted in 5 bars showing.
Observation 3. Subject C using iPhone 4 A, Vodafone Australia SIM card 5 bars showing.
Touching the point resulted in 5 bars showing.
Observation 4. Subject A using iPhone 4 B, Virgin Australia SIM card on the Optus network 5 bars showing.
Touching the point resulted in 5 bars showing.
Observation 5. Subject B using iPhone 4 B, Virgin Australia SIM card on the Optus network 5 bars showing.
Touching the point resulted in 5 bars showing.
Observation 6. Subject A using iPhone 4 B, Virgin Australia SIM card on the Optus network 5 bars showing.
Touching the point resulted in 5 bars showing.
Conclusion
Touching the bottom left corner of an iPhone 4 in such a way that the two pieces of metal on either side of a black dividing strip are connected via a finger tip has no observable effect on the iPhone 4's reception.
Quote:
Originally Posted by
Firefly7475 
I know the concepts are hard to grasp but if you're ever going to have a chance at understanding them it is now, so (assuming you actually want to know) I'd suggest putting a bit of effort in.