-> JK> I'm looking at ordering a SupraFAX modem for my BBS, but now
-> JK> 56K deal is coming along, should I wait on buying this modem?
->
-> No. The 56k stuff requires some sort of fancy hardware on the ISP's
-> side to work properly..
JK> I believe it just said the ISP needed a direct, digital connect,
JK> while the end user just needs a phone line (POTS).
It is a bit fuzzy with all the bits and pieces floating through!
JK> Back in the days of the 2400 bps modem, naysayers said a 9600 bps
JK> modem was "impossible", yet it happened, then 14,400 [etc]..
Naysayers should be taken for what they are, and nothing more.
There's a big difference between bps and band width. I believe what
knowledgeable technicians said was, the band width of current phone
lines was then limited to 2400 baud (by the technical definition of
band width signals). That's the size of the playing field, not what
players can do on it!
Confusion arose later when those who chose to equate their product
to baud rates arrived at the barrier for a single signal. People do
not always conform to a technical definition. Ad writers and sales
promoters, in fact, are prone to stretch things beyond truth with
little regard for accuracy. Only by their misnomer is modem baud
rate equivalent to band width. It isn't, so don't be misled.
The manner in which speeds were effectively increased was to utilize
multiple 2400 baud signals rather than one signal, which had been an
accepted practice, up to that time. Phone lines can carry numerous
signals simultaneously on voice without interfering with each other.
That was adapted to use in splitting modem signals and descrambling
them on reception, adding the data, to comprise greater volume as if
it were sent at a higher rate, which was in fact still at 2400 baud,
by signal width. That's all the phone company requires, so that's
all we get on common voice lines.
Granted, the above is a generalization subject to technical error by
over simplification, but should convey the idea.
In conversations, we all know what we mean by a modem rated at 2400
or 56K baud. That's fine, if we leave it at that.
JK> they said anything higher without a digital (ie. ISDN) line wasn't
JK> possible....and low & behold 28,800 bps....and then 33.6K....and
JK> then...
This disregards the "current technology" factor. All those things
were true limits, at the time. It's simply incorrect to think that
everyone considered them to be the ultimate possible. If that were
the case, computers would not have incorporated potential to go up
to 150K in days when most modems in the hands of individual owners
were 300 baud, or a really FAST 1200! Those who know what they are
talking about never said, much less believed, that development was
at it limits at any of those stages, Jim.
JK> Never say never with computer stuff, it changes too quickly.
JK> Where there's a will (to make money) there's a way. ;-)
You're on solid ground, there! It not only continues, it seems to
be developing more rapidly than before as time goes on, too.
JK> I'd like to hear a Supra Rep. (in one exists in this echo)
JK> to give their position on the 56K issue. Question is, will
JK> it be made available from Supra? And if so, will the current
JK> modems be upgradable via software or hardware upgrade or will
JK> it require a whole new modem? What is the Supra timetable on this?
Many of us share your curiosity, Jim. ;^)
I'm not a rep of any kind, so this is not to answer you, per se.
As discussion, I'd expect to see, respectively: Yes, Supra will be
in the market; not likely that software will outreach hardware; and
yes, more than likely Supra will offer upgrades if design expected
need, else a new model will be issued. Just guesses derived from
prior experience. It'll be interesting to see what the guru's say!
I wouldn't even stab at calendar dates. We know very little in the
industry stays a true secret for long, so they've probably been on
56K projects for some time already. The larger problem as I see it
would be compatibility. With about three supposed to be near market
what happens if they don't "talk" to each other at that rate?
... Objects under T-Shirt often smaller than they appear.
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