23 (d) Explain why it is important that the Meteosat satellite has a circular orbit rather than an elliptical orbit. ................................................................................................................................................... ................................................................................................................................................... .............................................................................................................................................. [2] (e) TV satellites use microwaves for transmission. Explain how communications between TV satellites and Earth take place. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... .............................................................................................................................................. [2]
Š OCR 2015
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