h a l f b a k e r yNaturally, seismology provides the answer.
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With privacy swiftly eroding, take some of it back by making calls which can't be physically located. Using a highly directional antenna, this cell phone makes contact with exactly one tower. With only one data point available to the authorities, triangulation and multilateration locating techniques
are thwarted.
As a bonus, phone efficiency increases because less power is wasted sending signals into space.
//Taken to it's logical conclusion//
South_20Facing_20Ear_20Trumpet
[mitxela, Jan 08 2015]
It works without the string also
http://fineartameri...zanne-schaefer.html
[normzone, Jan 08 2015]
[link]
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So, how does the phone find the tower, in the first place ? |
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Point the antenna around, until it receives a good signal. |
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Taken to it's logical conclusion, you would engage in line of sight communications with the other party. |
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// Point the antenna around, until it receives a good signal. |
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Wouldn't this sacrifice inbound calls? And you could only call other regular phones. |
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No, it would still work as normal. Cell phones are able to communicate just fine with a single tower. |
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Two cans connected by a string solves all of these issues. |
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[+] but I think that cell communication in cities rely on sometimes transient reflections. Your strongest signal, when the phone is looking for one, could be something bounced off a bus which isn't there a minute later. |
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[xenzag], it's possible to achieve that without the string also (link). |
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Once DNA sequencing becomes fast enough and cheap
enough, you'll be able to find out where anyone is at
any time. Unless they have the good sense not to
pee in a toilet. |
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Directional antennas aren't exactly small. You're going to
have a hard time lugging one around with you. And since
the primary lobe has to be pointed at a tower, you won't
get incoming calls unless you carry it around horizontally
pointing at a tower that is in range. |
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Of course directional antennas aren't that specific, so you
probably could still pick up random towers if they were
close enough, but it's not certain. |
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