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Well, the single cable coming into your house has the capability of carrying many signals of variuos frequencies.
That means the electronic equipment on that cable can understand and interpret signals on the frequency they are tuned to.
As far as the cable being there, well, the waves are out there for anything, if you have the right equipment to understand and interpret such.
XM is out there, but my Alpine wants a reciever.
She wants this, I want that, the reciever is the key. Otherwise I don't know what the hell she wants even though the signal was recieved, I need help intertrpreting the signal.
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