JAVAD GNSS has announced that, with modified firmware, all of the company’s receivers can now track the Chinese Compass B1 signal. The company states that Compass is the sixth GNSS system that its receivers can track, joining GPS, GLONASS, Galileo (the two GIOVE in-orbit validation experimental satellites), SBAS (the European Geostationary Navigation Overlay Service or EGNOS), and Japan’s Quasi-Zenith Satellite System (QZSS).

JAVAD GNSS made available a log file, collected on TR_G3TH board in Moscow during weekend, reporting up to 26 satellites from the various systems, locked simultaneously. Also provided below are several other plots showing the new capability.

The company further stated that it will add Compass tracking to almost all receivers in near future, as a firmware upgrade.

The Compass system consists of six satellites, four of them are visible in Moscow. Their day track is shown below.

Below are Doppler, SNR and "code-minus-phase" graphs for all these satellites (g3=211, igso1=212, igso2=213, m1=214), collected during their pass:

Source: http://www.gpsworld.com/