JAVAD GNSS Customers Now Track GPS L5 Signal

The first GPS satellite with L5 signal(IIR(M)-20) was successfully launched on March 24, 2009 and its L5 payload activated on April 10, 2009. This is a significant milestone in the GPS modernization efforts.

JAVAD GNSS is proud to announce that its customers with JAVAD GNSS "triple-frequency" type OEM boards(TR-G2T, TR-G3T, TRE-G2T, TRE-G3T, TRE-G3TAJ) and receivers (TRIUMPH-1, Alpha TR-G2T/TR-G3T, DeltaS TRE-G2T/TRE-G3T/TRE-G3TAJ, SigmaS TRE-G2T/TRE-G3T/TRE-G3TAJ) can now track this signal.

The signal characteristics clearly indicate that JAVAD GNSS receivers allow high quality code and carrier phase measurements of the L5 signal. The signal-to-noise ratio typically varies from about 30 dB*Hz at low elevations up to 57 dB*Hz at zenith (see figures below, top is SNR for L5, bottom is SNR for GPS PRN 1). 

The white-noise, multipath, etc tracking errors are comparable to what is normally seen for the L1 and L2 signals.

Those interested in sample raw data with the "triple-frequency"(L1-L2-L5) code and carrier phase measurements from IIR(M)-20, can download sample data from "GNSS Almanac Archive" (see the ADVANCED section on Note that these sample raw data are available in the JAVAD GNSS proprietary binary format as well as Rinex 3.0.