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← ScienceWhich measurement changes because gravitational time dilation influences GPS satellites?
A)Satellite orbital path calculations
B)Signal reception noise floor
C)Transmitter antenna power output
D)Onboard atomic clock frequency✓
💡 Explanation
The observed period of onboard atomic clocks experiencing less significant gravitational time dilation drifts relative to Earth-based clocks, thereby reducing navigational accuracy. Clocks run faster because spacetime curvature is weaker, therefore onboard frequency must be corrected, rather than affecting signals.
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