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Software release information
Configuration and Operation
Installation, Antennas and Interference
WSPR, wsprdaemon, kiwirecorder
Problems and Issues
Problems Now Fixed
How many tracked satellites needed for clock correction?
Hi Robert. That's a great question.
Short answer: Four, because that's the minimum number needed to generate a GPS fix.
With navigation timing and position accuracy are directly linked. The better position fix you have the more accurate the timing solution will be. And more satellites leads to a better position fix. But in practice it seems that even a single fix from just 4 sats is enough to eliminate the largest error in the ADC clock: the offset caused by crystal temperature.
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