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Article #291

Re: Win modems slower ???

#291
From: John Barth
Date: Sun, 20 Jun 1999 00:00
36 lines
2920 bytes
Sounds as if you have different microcode in these two modems.  I tested modems for many
years and know that the microcode makes a lot of difference.  I have a V.34 which will
connect at 33.6 every time.  Only problem is that it runs a lot of errors (retransmits) and
performs better at 28.8. Thus the throughput is better at 28.8 than at 33.6.

JB

Thor wrote:

> What you need to realize is that connect rates can vary even among identical models of
> modems. I have 2 identical USR 33.6 modems, and one connects consistently at 28,800 and
> the other (in the same computer, on the same line) will connect consistently at 31,200.
> The speed difference between your two modems is neglibile, and I wouldn't be concerned
> about it. And, winmodems aren't inherently any slower in their connection speeds than
> hardware modems. I have seen quite a few that connected at higher speeds than good
> hardware modems did. There are so many variables involved, such as the clarity of the
> phone line at the moment of connection, the modems you are dialing into, path through
> telco switching stations, etc. In fact, you can even get better performance in some cases
> from a lower connect speed. If the initial connect speed is too high for the quality of
> the signal, then more retransmits will occur, and this will slow your throughput, while a
> slower initial connection speed can result in fewer retransmits, providing a better
> quality connection. I know it sounds odd, but sometimes this is the case.
>
> ..
> G.F. <g.fortin@sympatico.ca> wrote in message
> news:lJ7b3.16549$5a.21559@news20.bellglobal.com...
> > I have tried a PCI Zoom modem and could not
> > connect above 44000 against usual 48000 - probably poor line - with
> > my Supra.
> >
> > Are there any PCI Windows modems that will
> > connect at a better rate.
> >
> >
> >
> >
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From: John Barth <j_barth@bellsouth.net>
Subject: Re: Win modems slower ???
Date: 1999/06/20
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