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Cell Phone Technology
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Published: September 22, 2006
They can keep you closer to loved ones, closer to hated ones, take a picture, connect to the Internet, allow you to e-mail, do your taxes and double as a Chinese star. (Is there anything these things can't do?)
Let's face it; without our cell phones, most people's worlds would crumble. Take a look around any public setting and you will see cell phones seemingly growing out of everyone's ear.
Yet, for all its omnipresence, very few people know how cell phone technology works.
Excuse me while I get all technical on you and stuff:
Comparatively, radio technology and cell phone technology are connected. (Yeah, I said connected. ) CB radios and walkie-talkies are called "half-duplex devices." They use only one line, or channel, of communication; so, only one user can talk at a time over a limited distance.
On the other hand, cell phone technology works much with same principle, but it's a little more sophisticatedly than CB radios or walkie-talkies.
Cell phone technology works as a full-duplex device mode. This means cell phones use multiple frequencies (around 800) and two channels for speaking – one for transmission and one for receiving. This means cell phone users can talk at the same time on both ends.
The technology behind the network itself has a honeycomb shape. A hexagonal grid gives cell phone users wider transmission range. Each site has a base station responsible for transmitting and receiving cell phone calls and neighboring sites for about 10 miles. Cell phones can switch from site to site as the caller moves.
Over the past several years, cell phone network technology has revolutionized. Earlier model phones and sites operated on analog technology, which is a lower end technology often called 1G, or first generation.
Second generation, 2G or digital technology, is more prolific and now provides cell phone sites with faster transmission and greater call storage capacity. It can handle dozens more calls than analog sites. We have been accustomed to digital technology for a while now; it isn't leaving any time soon.
The craft of cell phones is sort of revolutionary, too. The cell phone is 23 years old this year (Happy Birthday to it...). Once upon a time, these mammoth devices were as big as that brontosaurus rib on The Flintstones, but now cell phones are lean, mean yakking machines.
Digital cell phones use technology similar to computer technology. They sport flash memory, a central processor chip and data bus circuitry aiding the internal transmission and processing. That's pretty sophisticated for something smaller than a mouse.
One recent "revolution" in cell phone technology is the new LG Chocolate model. It dons 128 MB of memory, holds mp3's, has VCAST Video, a mere 1.3 megapixel camera, Bluetooth capability, expanded memory slot for SanDisk 2 GB cards, VZ Navigator and a corkscrew all in a neat and delicious little package.
However, I would be more impressed if, after talking on it, you could eat the cell phone. For what it's worth (approximately $99.99), that would be literally putting your money where your mouth is.
Sources:
HowStuffWorks. 22 September 2006. .
Mobiledia. 22 September 2006. .
Popular Mechanics. 22 September 2006.
Let's face it; without our cell phones, most people's worlds would crumble. Take a look around any public setting and you will see cell phones seemingly growing out of everyone's ear.
Yet, for all its omnipresence, very few people know how cell phone technology works.
Excuse me while I get all technical on you and stuff:
Comparatively, radio technology and cell phone technology are connected. (Yeah, I said connected. ) CB radios and walkie-talkies are called "half-duplex devices." They use only one line, or channel, of communication; so, only one user can talk at a time over a limited distance.
On the other hand, cell phone technology works much with same principle, but it's a little more sophisticatedly than CB radios or walkie-talkies.
Cell phone technology works as a full-duplex device mode. This means cell phones use multiple frequencies (around 800) and two channels for speaking – one for transmission and one for receiving. This means cell phone users can talk at the same time on both ends.
The technology behind the network itself has a honeycomb shape. A hexagonal grid gives cell phone users wider transmission range. Each site has a base station responsible for transmitting and receiving cell phone calls and neighboring sites for about 10 miles. Cell phones can switch from site to site as the caller moves.
Over the past several years, cell phone network technology has revolutionized. Earlier model phones and sites operated on analog technology, which is a lower end technology often called 1G, or first generation.
Second generation, 2G or digital technology, is more prolific and now provides cell phone sites with faster transmission and greater call storage capacity. It can handle dozens more calls than analog sites. We have been accustomed to digital technology for a while now; it isn't leaving any time soon.
The craft of cell phones is sort of revolutionary, too. The cell phone is 23 years old this year (Happy Birthday to it...). Once upon a time, these mammoth devices were as big as that brontosaurus rib on The Flintstones, but now cell phones are lean, mean yakking machines.
Digital cell phones use technology similar to computer technology. They sport flash memory, a central processor chip and data bus circuitry aiding the internal transmission and processing. That's pretty sophisticated for something smaller than a mouse.
One recent "revolution" in cell phone technology is the new LG Chocolate model. It dons 128 MB of memory, holds mp3's, has VCAST Video, a mere 1.3 megapixel camera, Bluetooth capability, expanded memory slot for SanDisk 2 GB cards, VZ Navigator and a corkscrew all in a neat and delicious little package.
However, I would be more impressed if, after talking on it, you could eat the cell phone. For what it's worth (approximately $99.99), that would be literally putting your money where your mouth is.
Sources:
HowStuffWorks. 22 September 2006. .
Mobiledia. 22 September 2006. .
Popular Mechanics. 22 September 2006.
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