7R-30E3 B
 Which of the following statements concerning COSPAS-SARSAT is false?
A. 406 MHz EPIRBs are units that are used as alerting devices.
B. Doppler frequency measurements provide more precise locations than GPIRB signals.
C. The Doppler frequency measurement concept is used to determine the EPIRB's location.
D. Satellites in a low-earth polar orbit detect EPIRB beacons on 406 MHz and relay the information to a Local User Terminal (LUT).
