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Subject: Re: UKNM: ADSL and alternative technologies
From: Sean Phelan
Date: Fri, 26 Nov 1999 16:55:08 GMT

Hm; lots of people have tried this, mainly for remote locations.

If the satellites are geostationary then the latency is an absolute
killer - 2 second turnaround in each connection, etc. Also, the TCP/IP
gurus have to do their stuff right in tuning for satellite links, or
it all grinds to an ugly halt.

The little LEOs (LEO - low earth orbit) are a much better bet, but the
early ones optimised for voice. I reckon Teledesic will get it right,
but I don't think it is live yet.

Big, long file transers over satellite - great. Newsfeeds - great.
General surfing.... given the speed of light being what it is, and
TCP/IP being what it is, I'd be very surprised if it was worth it.


>While the ADSL debate is heating up, I thought it'd be worth throwing in
>something else. Has anyone seen or heard about a venture called
>acting as a satellite ISP and claiming speeds of 50Mbps? The web site
>is poor and responses to inquiries have been elusive, but if the product
>meets the hype and exceeds the web site it could change the competitive
>landscape. It is aimed at the consumer, SOHO and corporations.
>Roland Perry | Airtight
>Pacific House | 40-42 Scrutton Street | London EC2A 4QL
>T 0171 377 6711 | F 0171 377 6712 | M 07974 565 970
>E rolandatair-tight [dot] com | www.air-tight.com

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  UKNM: ADSL and alternative technologies, Roland

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