1) Signal detection better than -167dBm
2) Cold start < 30 seconds at –147dBm
3) Hot start < 1sec. under open sky.
4) 2.5m CEP accuracy.
5) Signal reacquisition 1 sec.
6) Acquire and track 72 satellites simultaneously
7) USB Version 1.1/2.0, 4dBm output level Up to 10m of operation
GPS/GLONASS/QZSS/BeiDou USB Dongle receiver X 1
USB Adapter X 1(Option)
CD manual & driver X1
Q: What is GNSS.
A: Global Navigation Satellite System (GNSS), which including the GPS, GLONASS, Galileo , Beidou, QZSS system.
The Global Positioning System (GPS) is a GNSS operated by the US department of defense. Its purpose is to
provide position, velocity and time for civilian and defense users on a global basis. The system currently consists of 32 medium
earth orbit satellites and several ground control stations.
GLONASS is a GNSS operated by Russian Federation department of defense. Its purpose is to provide position,
velocity and time for civilian and defense users on a global basis. The system consists of 24 medium earth orbit
satellites and ground control stations.
Galileo is Europe’s own global navigation satellite system, providing a highly accurate, guaranteed global positioning service under
civilian control. It is interoperable with GPS and Glonass, the US and Russian global satellite navigation systems. By offering dual
frequencies as standard, Galileo is set to deliver real-time positioning accuracy down to the metre range.
Initial services will be made available by the end of 2016. Then as the constellation is built-up beyond that, new services will be
tested and made available, with system completion scheduled for 2020.
BeiDou is a GNSS operated by China. Its purpose is to initially provide navigation in Asia. In a later stage when
the system is fully deployed it will have worldwide coverage. The full system will consist of five geostationary,
five inclined geosynchronous and 27 medium earth orbit satellites, as well as control, upload and monitoring
The Quasi Zenith Satellite System (QZSS) is a regional satellite augmentation system operated by Japan
Aerospace Exploration Agency (JAXA). It is intended as an enhancement to GPS, to increase availability and
positional accuracy. The QZSS system achieves this by transmitting GPS-compatible signals in the GPS bands.
NMEA messages will show the QZSS satellites only if configured to do so.