[linux-dvb] Re: Sat-Internet Provider Choice

[<christoph.rieder@web.de>]

Matthias Weingart <matthias@pentax.boerde.de> schrieb am 23.01.02:
> On Wed, Jan 23, 2002 at 08:09:25PM +0200, Mihai Amariutei wrote:
> > The sad reality is that is no such thing as cheap fast Internet via
> > Satellite, simply because sats are much too expensive.
> > Do the math yourself:
> > 1 sat costs about 800 millions USD
> > It can be used for about 6 years
> > It carry a couple of dozens transponders, capable of say 40 Mbps each.
> > 
> > It works out for a bandwith price of about 3000 USD/Mbps/month, about ten
> 
> Hey, good guess :-)
> real life data: 5500USD for a  512kbit/s MPEG2 stream (www.planetc.com
> used this for a sat newsfeed, but they capitulate recently, because of
> the costs)

I thought that the idea behind internet via sat is to use the "excess" bandwith of DVB channels (somewhat same idea as videotext). This would limit the average bandwith to some hundered kbit/s (raw guess) but is essentially free.
An the other possibility is (and EON seems to concentrate on this) multicasting. So if somebody wants to download <popular software package> make her/him wait until some 100 others have registered for the same file and then multicast it to them. therefore they share the cost of a transponder.

BTW: is the linux version of EON's software (fazt?) out? somebody once sait that it exists.

Christoph
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