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Microcap & Penny Stocks : Globalstar Telecommunications Limited GSAT -- Ignore unavailable to you. Want to Upgrade?

To: limtex who wrote (6900)	8/26/1999 8:39:00 PM
From: Rocket Scientist	Read Replies (2) \| Respond to of 29987

It may help to consider the geometry. Draw a circle 4inches in diameter and call it the earth (2000 miles to the inch) Draw another circle 5 1/2 inches in diameter with the same center point. That's a G* satellites orbit, near enough. Now consider a gateway located somewhere on the smaller circle and mark off 1500 miles (3/4 inch) on each side of it. That's the GW's coverage area. Any G* satellite call has a GW at one end of the satellite link, a user on the other. If it was only a question of connecting the dots geometrically, then a GW could cover a wider area, maybe 3000 mile radius, before the earths curvature would make a connection impossible. But as the user gets farther from the GW the path of the call gets longer and the view angle the satellite is required to encompass gets bigger. The 1500 miles, if that's still the correct figure, represents the compromise the system designers made between minimizing the number of GWs versus keeping the satellite constellation size, mass, power, etc reasonable. Remember, power required varies with the square of the distance travelled. Hope that helps, RS