Hey - did you know if you click on the title of a thread it will take you to the first unread post since you last visited that thread?
but were afraid to ask: 
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Pretty Please - add it to our Events forum(s) and add to the calendar! >> 
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How is this possible? How can so many signals be sent through just two wires at the same time? Is there magic going on? Where are the elves?
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TR3driver
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In what context? Are you talking about DSL?
GPS is even stranger; all 32 satellites (or so, don't recall exact current number offhand) broadcast on exactly the same frequency. The result at the receiver is indistinguishable from noise, and yet the receiver sorts it all out (using literally the same RF path for all).
"Any sufficiently advanced technology is indistinguishable from magic."
GPS is even stranger; all 32 satellites (or so, don't recall exact current number offhand) broadcast on exactly the same frequency. The result at the receiver is indistinguishable from noise, and yet the receiver sorts it all out (using literally the same RF path for all).
"Any sufficiently advanced technology is indistinguishable from magic."
OP
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Yeah, but what if a vampire makes a phone call...
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he doesn' get garlic on his pizza?
BustedKnuckles
Jedi Knight
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For phone lines it can be done by sending each signal out on a different radio frequency and then decoding each frequency into signals at their destination...just like sending all those same radio signals through the air except they're all going down a wire.