Global Navigation Satellite System
The Global Navigation Satellite System (GNSS) are worldwide navigation infrastructures that
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provide multi-constellation support for receiving,
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offer advanced timing and location integrity features, and
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ensure compatibility with a wide range of satellite services through specific PRN ranges.
Supported GNSS constellations and PRN ranges
The Global Navigation Satellite System (GNSS) receiver is designed to operate on the GPS, Galileo, GLONASS, BeiDou and QZSS L1 frequencies 1551MHz to 1614MHz, standard position service, and Coarse Acquisition code.
When connected to an external GNSS antenna, the receiver contains all the circuitry necessary to automatically acquire GNSS satellite signals, track up to 32 GNSS satellites, and compute location, speed, heading, and time. It provides an accurate one pulse-per-second (PPS) and stable 10-MHz frequency output for internal system use.
It automatically initiates a self-survey upon acquisition of GNSS satellites. When the survey is completed, the receiver switches
into the Over-Determined timing mode. In this mode, the reference position from the self-survey is maintained in memory and the receiver solves only
for clock error and clock bias. The receiver provides for both Position and Time Receiver Autonomous Integrity Monitoring
(T-RAIM) which allows the receiver to self-determine position change or to remove a satellite providing incorrect information
to the timing solution.
 Note |
No signals are transmitted out of GNSS ports (Antenna port). |
The Global Navigation Satellite System (GNSS) supports various satellite constellations, each with specific Pseudo-Random Noise (PRN) numbers. The supported PRN ranges for different GNSS systems are:
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GPS – Supports PRN 1 through 32 only
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GLONASS – Supports PRN 65 through 96 only
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BeiDou – Supports PRN 201 through 237 only
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Galileo – Supports PRN 97 through 133 only
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QZSS – Supports PRN 193 through 195 only
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SBAS – Supports PRN 33 through 54 only
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