Re: Increasing the speed of dial-up to that of cable -- possible?

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Article #243

#243

From: Radium
Date: Mon, 13 Aug 2007 23:27

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On Aug 13, 4:21 pm, "Vanguard" <vangu...@mail.invalid> wrote:
> "Radium" <gluceg...@gmail.com> wrote in message
>
> news:1187045374.227004.161110@g12g2000prg.googlegroups.com...
>
>
>
> > Hi:
>
> > Quotes from
> >http://groups.google.com/group/sci.electronics.basics/msg/0c013cf5371...
> > :
>
> >>Multiple-level quadrature modulation,
> >>"constellation modulation",
> >>is most common for packing
> >>lots of bits per Hz of bandwidth.
> >>The more you pack,
> >>the better the s/n ratio has to be.
>
> >>http://en.wikipedia.org/wiki/Quadrature_amplitude_modulation
>
> >>http://en.wikipedia.org/wiki/Constellation_diagram
>
> > Does this mean that Quadrature Modulation and Constellation
> > Modulation
> > can be used -- at least in theory -- to give dial-up modem
> > connections
> > around the same fast speeds provided by Broadband cable modems?
>
> It's called aDSL.  Uses the same phone line as your analog modem.  Go
> search on Wikipedia or Google for info.

Does ADSL also make the sounds associated with the dial-up modem --
i.e. the sounds that result as a computer connects to the net via its
dial-up modem?

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From:  Radium <glucegen1@gmail.com>
Newsgroups: alt.comp.hardware,comp.dcom.modems,microsoft.public.windowsxp.network_web,24hoursupport.helpdesk,microsoft.public.win2000.networking
Subject: Re: Increasing the speed of dial-up to that of cable -- possible?
Date: Mon, 13 Aug 2007 23:27:54 -0000
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