🚀 go-pugleaf

In article <19960605.124615.46@xargle.demon.co.uk>
          thowat@xargle.demon.co.uk (Tony Howat) wrote:

> In message <4p1r5o$huv@news.ox.ac.uk> Thomas Down wrote:
> 
> > Tony Pay (Tony@stsm.demon.co.uk) wrote:
> > : Can anyone help me with this?
> > 
> > : I can't get past login on Demon, using Termite or ANT Suite, while set
> > : faster than 38400.  I believe the II Dual card is supposed to let me do
> > : this even with my antiquated machine.  I have A420/1, 4Mb RAM, ARM3,
> > : RISCOS 3.1, USR Courier.  I'm using a PC style cable with the software
> > : configured appropriately. 
> > 
> > : Perhaps this is overly optimistic, but TCPIP is set at 115200 seemingly
> > : without problem.  Obviously I would benefit most from the higher speed
> > : while using the web browser - i.e. with the other two pieces of
> > : software.
> > 
> > Umm... Modems don't run faster than 28800 baud. This is supposedly more
> > or less the theoretical limit of what can be achieved over normal analog
> > 'phone lines. To go any faster, you'll need ISDN, or something similar.
> > Unless I'm missing the point completely...
> 
> I think he's talking serial speed which is really a case of the faster the
> better if your machine can cope with it, especially if you are using
> compression. Some modems do go faster than 28800 baud (34k ish), but not
> with demon.

The fastest available modem to date is the USR Courier V34+ which does
33600 bps. Note that it is "bps" instead of "baud". V32bis for example
is based on 2400 baud and transmits/receives 14400 bps. IIRC V34 uses
up to 3200 baud, which is really very close to the physical limit of
a (good) phone line.

I don't know much about modulation techniques, but I don't think that
33600 bps is the highest possible speed we will ever see...remember the
old days when they told us that we will never get any higher than 2400 bps.

So long, Steffen

-- 
Steffen Huber           LambdaComm System - Welcome to Trollinger Country
hubersn@lcs.wn.bawue.de                       acorn2@ftp.uni-stuttgart.de
... Strebe nie nach solchen Dingen die auch Duemmeren gelingen.