TIP: Click on subject to list as thread! ANSI
echo: hs_modems
to: ROBERT OSBORNE
from: HERBERT GRAF
date: 1997-06-26 19:46:00
subject: Re: Modem Selection? 1/

-=> Quoting Robert Osborne to Dan Bridges <=-
 RO> Hi Dan,
 RO> Thanks for the reply, lets continue: You wrote,
 
 DB>First off, I started out with a 2,400bps no-name modem without
 DB>compression and error correction.  A modem with a DTE rate of 2,400bps
 DB>is commonly referred to as a "2400 baud" modem but it is actually
 DB>running at 600 baud since, with modern modems, each symbol encodes
 DB>multiple bits - in this case 4 bits/baud).
 RO> You lost me here.  I thought 2400 baud was the same as 2400 bits per
 RO> sec.?  I also thought that we were dealing with characters that were
 RO> defined by an 8 bit byte?  I can see the 600 baud X 4 bits/baud = 2400
 RO> bps.  I guess you lost me on the definition of what a symbol is and
 RO> that it encodes multiple bits?
        No, baud and bps are two seperate things. For example, a 14.4 modem
uses a baud of I beleive 1400 and encodes 10 bits per baud, giving the
14.4 kbps. More modern modems start to go away from baud and instead use
symbol rates, which are a bit more complicated. TTYL
___ Blue Wave/386 v2.30 [NR]
--- PCBoard (R) v15.4/M 5 Beta
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* Origin: (1:250/350)

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