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Subject:
From:
Donald Rex Gaither <[log in to unmask]>
Reply To:
PCBUILD - Personal Computer Hardware discussion List <[log in to unmask]>
Date:
Tue, 2 Feb 1999 12:03:10 -0500
Content-Type:
text/plain
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>Are you telling me that even though I have a 56K modem, I could maybe set
it
>for 115,200, and I could get maybe, just maybe a faster speed?
>
>Susan Hays
>

Hi,
   Yes, it is possible to get a faster "speed" by setting the modem to
115,200.  Modems use compression to transmit data.  If you set the rate the
computer and the modem talk to each other to the same as the two modems
talk, you will get "bursts" as the modems have to stop talking from time to
time to allow the computer to catch up.  Now, if you set the speed between
the computer and modem to faster than the speed of the two modems, the data
(which is coming in faster than the rated speed because it is compressed)
will have a better chance of keeping up. (example:  If we assume a 50%
reduction in the size due to compression, for every two bits the modems
transmit to each other, the modem must transmit three bits to the computer,
hence the need to set the computer-modem speed higher than the modem-modem
speed).

Hope this helps and is understandable,
Donald Gaither

                         PCBUILD's List Owner's:
                      Bob Wright<[log in to unmask]>
                        Drew Dunn<[log in to unmask]>

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