Which of the following best describes the GPS satellite signals transmitted?
The L2 carrier at 1650.5 MHz carries the navigation message and the L1 carrier at 1575.42 MHz is used to measure the ionospheric delay.
The two carriers are combined in a mixer circuit to develop an intermediate signal which is transmitted.
The main carrier of 1650.5 MHz and a sub-carrier of 1575.24 MHz containing the SPS code signals.
Correct Answer
The L1 carrier of 1575.42 MHz carries the navigation message and the SPS code signals and the L2 carrier 1227.60 MHz which is used to measure the ionospheric delay.