osition, elocity and ime, meaning that the navigation solution computes the current position, velocity and time clock bias of the receiver. P(Y) The Precise code is a long binary code that would repeat only every 38 weeks. Despite the code being shortened to a one week repeatability, because each satellite transmits a different weekly section of the code, there is still no ambiguity between the satellite and receiver. Under presence of A-S (Anti-Spoofing), the P-code is encrypted with the Y-code.