On 17 Jan 2007 05:34:23 -0800, "Terry" wrote:

|Andy Dingley wrote:
|
|
| 28.2?E is on a meridian somewhere towards the far end of the Med. I'm
| guessing an Arabic station? Obviously the satellites are all near the
| Equator in terms of lattitude.
|
|
|28.2?E is the position of the Astra 2A, 2B & 2D satellites used by
|Astra and the satellites have to be directly over the equator.
|
|If they were not, they would wander north and south of the equator over
|a 24 hour period and need a sophisticated steerable dish to track them.
|
|The dish needs to point to a spot in the sky which is 28.2?E of the
|Greenwich meridian and 35,786 kilometers (22,236 miles) above the
|equator - finding this point is the clever bit!

Quite easy really
http://www.satelliteforcaravans.co.uk/bearings.htm
when the complex maths has been done for you.
--
Dave Fawthrop dave hyphenologist co uk Google Groups is IME the *worst*
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