In article , John Rowland
writes
How do the receivers cope with dozens of satellites

31

all broadcasting on the
same frequencies? Time splicing?

As I understand it, the signals are not on a single frequency but rather
jump around a set of adjacent frequencies ("spread spectrum"). Each
satellite uses a different pattern of jumps repeating every millisecond,
so you can tell which satellite you're picking up by recognising the
pattern, and the different patterns mean that two satellites are never
(or hardly ever) on the same frequency at the same time.

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Clive D.W. Feather | Home:
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