The KiwiSDR 2 online store is open for orders! Please visit

clock correction

How many tracked satellites needed for clock correction?

Best Regards


  • 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.

Sign In or Register to comment.