On Fri, 21 Jan 2000, MYQ Y. Q. LARSON wrote:
> Sounds like someone's doing the Appalatian Trail? I would think you could MAKE
> one kind of easily. After all, an acoustic coupler is just another headset
> basically. Just take apart a cheap phone and rip out the speakers and mic,
> fashion some way to connect it to the phone and keep out noise, and patch the
> cables into your modem.
>
> maybe that's too simple. What's wrong with this? I'm sure I'm missing
> something...
Efficient noise reduction? Remember that a high-speed (by this I mean
greater than 9600bps) modem is used to running on a relatively clean
copper wire. It can error-correct, but this only happens occasionally.
When someone accidentaly picks up the phone line while I'm using my modem,
it takes anywhere from 3-10 seconds for the connection to correct
itself... if this was happening almost constantly you wouldn't be able to
get any data through. So the physical design would have to fit TIGHTLY to
the phone reciever, and probably also use some noise-cancellation
circuitry.
-----Victor Rehorst - victor@eddie.cis.uoguelph.ca | victor@torque.net------
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