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- Path: castle.nando.net!news
- From: infobear@infobear.com (Jim Fowler)
- Newsgroups: comp.dcom.modems,misc.forsale.computers.modems
- Subject: Re: Sportster si ???
- Date: Wed, 14 Feb 1996 23:22:10 -0500
- Organization: News & Observer Public Access
- Message-ID: <yTrIxgxtE2zc089yn@infobear.com>
- References: <DM9wto.Cz5@lafcol.lafayette.edu>
- <Pine.BSD/.3.91.960213152637.9045A-100000@optim.ism.net>
- <g5john.824263975@cdf.toronto.edu>
- Reply-To: infobear@infobear.com
- NNTP-Posting-Host: grail803.nando.net
-
- In article <g5john.824263975@cdf.toronto.edu>,
- g5john@cdf.toronto.edu (John Orcheson) wrote:
- :Chad Payne <chad@split.com> writes:
- :
- :>> How is the USR Sportster Si. different from the Vi ? If it is primarily
- :>> going to be used for fax , is there going to be a marked change in
- :>> performance ? It will be installed on a Pentium system....
- :
- :>A Sporster SI is an RPI based modem. RPI based modems do not have built
- :>in error correction and are essentially junk. They are bought up by
- :>neofites who don't know any better, and simply buy them because they are
- :>cheap. I plead and beg with everyone, DON'T BUY RPI MODEMS. Because people
- :>are buying them the manufacturers keep making more. The more they make the
- :>more headaches the whole industry has. It is a big mess. Vote with your
- :>$$ and buy real modems.
- :
- :>Enuf Said?
- :
- :I feel that you are completely misinformed about what an RPI modem is.
-
- No, he's entirely well informed about what an RPI modem is.
-
- :An RPI modem includes a chipset which, in conjunction with special software
- :drivers, simulates the same error control and data compression of the latest
- :modems which do error control and compression in their hardware.
-
- True enough, are these special software drivers available for all the
- environments I may want to operate in ? DOS, Windows, Window NT,
- Windows 95, Linux, OS/2. Nope. I just let a modem limit my choices of
- operating system.
-
- :Therefore if you use the software package that comes with the RPI
- :modem there will be no noticable performance difference between an
- :RPI modem and a regular modem.
-
- If you manage to establish and keep a stable connection which is a
- problem frequently reported by many users of RPI modems you may
- achieve throughput comparable to that achieved by a real modem with
- hardware based compression. But at what expense ? You're making your
- comparatively expensive CPU do all the work that your modem should be
- doing.
-
- When I'm doing large downloads of news, software, binaries, etc. I
- don't just sit there twiddling my thumbs. I'm a multitasking kind
- of guy. I'm reading news or writing code or looking at another online
- service with my second modem. I can do all this with very good
- responsiveness and without risk of interrupting or corrupting my
- download. How ? Easy, my modem is doing most of the work. My CPU is
- not bogged down doing on the fly data compression that a few bucks
- worth of hardware in my modem is doing.
-
- :The only difference is that you have a lot more money in your
- :bank account because of the very low cost of RPI modems.
-
- Bullshit. Let me summarize the differences:
- 1) Requires additional software that:
- a) restricts the number of operating environments in which
- you can use this modem
- b) introduces another software component into your communications
- set. A component with a history of causing comm
- connection and stability problems.
-
- 2) Puts an unnecessary burden on your CPU by forcing it to do the
- modem's work.
-
- :My RPI modem costed about 35% less than the regular version.
-
- They do sell for substantially less because as more users become
- educated and realize what a bad idea these thing are, it becomes
- increasingly difficult to sell them at any price short of a
- giveaway. You're getting no more than what you paid for, a sad
- imitation of a modem.
-
- You're paying a premium for the USR name and quality and with most
- of their modems it's worth it. In the case of an Si, you'd be better
- off buying a lesser known brand with real hardware data compression
- for about the same money. Many fewer headaches in the longrun for no
- more expense.
-
- :I have a Sporster 14.4 Si and I would reccomend it to anyone who needs a
- :modem and already uses Microsoft Windows.
-
- You're doling out bad advice that will cause grief for many if they
- choose to follow it. The net is riddled with horror stories from
- people who made the mistake of buying an RPI modem.
-
- I had a look at the USR web site, and while it might be there
- somewhere, I could find no mention of RPI or Si modems though I know
- USR has sold them in the past. I used the USR site search engine and
- searched for both RPI, Rockwell and Si, but came up empty. I can only
- conclude that either USR has quit making these modems or is simply to
- embarassed to talk about these abominations on their web site. I hope
- it's the former.
-
- RPI = return product immediately
-
- Jim Fowler
- InfoBear@infobear.com
-
-