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Old 8th November 2008 | 21:26
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The Flying Pram
 
Joined: Oct 2007
Posts: 448
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From: Norfolk U.K.
In the order you posted them: 2D, 2D, Eurobird 1, 2A, 2D, 2A, 2D.
Even 80 miles apart will appear as the same point when you consider that they are all some 22,000 miles distant! The focus of a small dish like that isn't anywhere good enough to separate them out. That's the main reason for the very large dishes used at the uplink sites - to enable individual satellites to be selected, and accurately track their movements. None of them stay in exactly the same spot, they wander about and need regular corrections made. This is done by small thrusters, and the limited fuel for these is the main reason limiting a satellites life.

If you want to know more about all the satellites out there and what they carry "Lyngsat" is worth a visit. Select either "Europe" or "Atlantic" under "Frequencies" and chose a satellite. Then you can click on the relevant footprint map under "Beam" and see what's pointing where. These are only a guide, there can be variations from one transponder to another, but it is a very useful resource for explaining to other "enthusiasts" why they can't get a signal that someone else in another part of the country can.
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