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RE: New South African Satellite

--- Mark Saurman <vo1one@gmail.com> wrote:
>What about a Molniya orbit?  Some passes high altitude with a large
>footprint but weaker signals requiring more elaborate equipment to
>work, and some passes low altitude with strong signals workable by HT
>with a quarter wave duck.

The emphasis would be on coverage of the continent of Africa esp South 
Africa. With a 63 degree Molniya orbit SA would always get poor coverage.

There is little doubt that a 1450 km orbit such as Oscar-7's would be a good 
choice as that provides a reasonable coverage area and a pass time of up to 
20 minutes. A 4500 km high orbit would also be interesting but the drawback 
to both of them is finding a launcher to get to those orbits. Sure you could 
in theory put a motor on the satellite and get to the orbit you want but 
it's non-trivial and very few Amateur satellites have done this.

73 Trevor M5AKA
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