I don't think that LEO is a good solution, may be you can try to use HAPS
(High Altitude Platform System) that now being explored by many countries.
-dani-
-----Original Message-----
From: [email protected] <[email protected]>
To: [email protected] <[email protected]>
Date: 03 Oktober 2000 2:50
Subject: Moving Targets
>Hi,
>
>I'm doing a research project about providing Internet access to moving
>targets on the eastern seabord of Australia. In this case, the moving
>targets are trains.
>
>We really need to provide around 1MB or so downstream, maybe 56k or so
>uplink. I've been doing a lot of searching but facts seem to be hard
>to come by.
>
>By my reckoning something like a link to an LEO constellation is
>needed to make this work because:
> - GEO satellites can't easily provide this type of bandwidth
> - GEO satellites require reasonably large dishes and need to
>fairly precisely targetted at the sat
> - Line of sight is needed for GEO links to work
>
>Basically, I'm hoping that with LEO links a dish won't even be
>required, some sort of antenna? Do any of the currently existing LEO
>constellations provide this sort of service? Future ones?
>
>Am I completely barking up the wrong tree here? Is there a better way
>of providing reasonably high speed internet access to moving vehicles
>without cabling etc.
>
>Thanks in advance,
>Shaun
>
This archive was generated by hypermail 2b29 : Mon Oct 02 2000 - 20:54:57 EDT