Civil Engineering - Elements of Remote Sensing - Discussion

Discussion Forum : Elements of Remote Sensing - Section 3 (Q.No. 5)
Which one of the following statements is correct ?
Each satellite of the GPS system transmits two L band signals.
The two L band signals are modulated by the Pseudorandom binary codes (PN).
The GPS receiver reads the specific code of the satellite.
The PN code determines the time taken by the receiver to reach the receiver which is converted into distance
All of these
Answer: Option
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