Spirent STR4760 Currently Testing Navigator Space Qualified Receiver Used on Hubble Space Mission

By Spirent On June 1, 2011
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We very rarely talk about specific products in this Blog, we prefer to discuss applications and trends within the GNSS community but for this particular entry we thought we’d make an exception.

The Navigator is a space-qualified GPS receiver, being developed by a team led by Dr. Carl Adams at the NASA Goddard Space Flight Center (GSFC), designed to highly elliptical and geosynchronous orbits. It has flown as part of a Remote Navigation Sensor experiment on the Hubble Space Telescope Servicing Mission-4 (HST SM-4), and is being used for benchmark performance testing for the geosynchronous GOES-R mission.

Navigator is undergoing testing for the MMS mission via a Spirent STR4760 GPS simulator available in the Flying Formation Test Bed at GSFC.

The STR4760 was launched by Spirent in 1997 as the first GPS simulator to offer more than 24 satellite channels (32) in a single chassis. Since then the STR4760 has been superseded, firstly by the GSS7700 and currently by the GSS8000 Multi-GNSS Constellation Simulator which offers test capability for GPS, GLONASS, Galileo and QZSS systems and applications.

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