Re: TI-H: TI-Modem one big reply
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Re: TI-H: TI-Modem one big reply
>All of you are telling me that it's easier to put a 9600 modem on it. If
>it's eaiser than how do you slap 9/25 pins into 3, you do that and try
>to process all that and the 9600 would be slower. Second off you need
>power, and alot of it, the modem is plugged in to the calc and the world
>and a battery pack (can't plug it into the wall in a tent with only a
>cell phone,) the battery pack would die in an hour. Answer that.
>
The simple fact remains that the phone wires are analog and the TI
outputs digital signals. Hence the need for a modem =
"MODulator-DEModulator." It takes the serial pulse train of digital
signals and MODulates the signal into an analog one through various
methods (frequency shift keying or phase shift keying in 14.4+
modems). This is an extremely complex process, and there is zero
chance that this could be mimiced with the TI linkport alone. And the
electronics of building something that could emulate a Phase Shift
Keyed modem are way above even my head (not that I know a whole lot,
but more than most), so I'd say just forget about the idea :). It
simply cannot be done without a modem.
-Mel
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