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<div class="moz-cite-prefix">On 09/10/19 22:42, Peter Neale via
Talk-GB wrote:<br>
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cite="mid:809916989.388434.1570621344292@mail.yahoo.com">
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... and if you had 2 devices, how would you know which is right?
You would need at least 3 devices, so that you could take a
majority vote.
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<div id="yMail_cursorElementTracker_1570621279289">Actually 5
would better....</div>
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6 is general taken as a minimum number to get a good student's T <br>
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And they should be independent as far as possible. <br>
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So chose times when there are different satellites in use.<br>
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And chose the different systems, GPS then GLONASS <br>
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cite="mid:809916989.388434.1570621344292@mail.yahoo.com">
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<div id="yMail_cursorElementTracker_1570621291494">Or 7, or 9....
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More is better - improves student's T but diminishing improvement. <br>
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