Article View: sci.electronics
Article #19535Re: 9600 baud modems
From: Henry Spencer
Date: Fri, 29 Jul 1988 19:48
Date: Fri, 29 Jul 1988 19:48
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In article <1047@unccvax.UUCP> dya@unccvax.UUCP (York David Anthony) writes: > Unless and until Telebit Trailblazer, or any other of these >"tier-two" high speed modems can demonstrate a throughput of >14,400 bits/sec using random synchronous data, these modems >will be rightfully considered to be "second class"... My recollection is that the link-level bit rate of the Trailblazer on a good phone line (it adapts much more gracefully to poor ones than the V.xx modems) is 18k, and the delivered error-free rate is 14k. This is raw random-data rate, mind you, WITHOUT DATA COMPRESSION. > Having transmitted medical images (essentially random >data) through every kind of modem known to God, I can with >certainty state that the Telebit Trailblazer does not even achive >achieve 9600 bits/sec on random data. You're transmitting with uucp, I assume? Have you forgotten protocol overhead? (For that matter, have you considered the possibility that the CPU is the bottleneck?) -- MSDOS is not dead, it just | Henry Spencer at U of Toronto Zoology smells that way. | uunet!mnetor!utzoo!henry henry@zoo.toronto.edu
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Newsgroups: sci.electronics Path: arc1-ca.pugleaf.net!utzoo!henry From: henry@utzoo.uucp (Henry Spencer) Subject: Re: 9600 baud modems Message-ID: <1988Jul29.194813.27599@utzoo.uucp> Organization: U of Toronto Zoology References: <1127@nunki.usc.edu> <478@ns.UUCP> <1044@unccvax.UUCP> <506@ns.UUCP> <1988Jul23.203605.20716@utzoo.uucp> <1047@unccvax.UUCP> Date: Fri, 29 Jul 88 19:48:13 GMT