The satellite navigation system NAVSTAR GPS uses two navigation frequencies, L1 and L2.
Choose the correct statement:
SPS: standard positioning service
PPS: precise positioning service

Question

Answer

Only the L1 frequency is used for PPS.

Answer

The L1 frequency is used for PPS and the 12 frequency is used for SPS.

Answer

Only the L2 frequency is used for PPS.

Answer

Both L1 and L2 frequencies are used for PPS.

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The satellite navigation system NAVSTAR GPS uses two navigation frequencies, L1 ...

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