Figure 6: Modernization Milestone

FIGURE 6: The L2 spectrum of GPS SVN 49 satellite, captured at 4:31a.m. PDT on April 10, 2009, at Stanford, California. Satellite elevation was 51 degrees and azimuth was 313 degrees. The spectrum shows the 1.023 MHz L2C signal, the BOC(10, 5) M code signal, as well as the 10.23 MHz L2 P(Y) signal.