On Feb 3, 2006, at 12:26 AM, Chris Hastie wrote:
Thanks for that. Another question to show my ignorance of GPS. You said elsewhere that a view of 4 satellites was needed. I've often wondered why so for time keeping? I can see why for positioning, but I can't help thinking with a static unit surely it should be able to work out the time from one providing you accurately tell it where it is?
You need to know where you are to know how long it took the GPS signal (with the time stamp) to reach you.
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