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GNS - GPS/GLONASS receiver

Numéro de référence GNS702
Description GPS/GLONASS receiver
Fabricant GNS 
Logo GNS 





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GNS702 fiche technique
GPS/GLONASS receiver
GNS702
Datasheet V1.2
preliminary specification
1 INTRODUCTION
GNS702 is a small autonomous GPS/GLONASS receiver, based upon the MediaTek MT3333 single
chip, available with a finely tuned, high-sensitivity ceramic chip antenna. The receiver supports GPS
and GLONASS simultaneously.
The navigation performance and accuracy is further improved by using correction data from SBAS
(WAAS, EGNOS, GAGAN, MSAS), QZSS.
First Fixes after just a few seconds are achieved with the help of A-GPS using EPOTM ( Extended
Prediction Orbit) and the EASYTM “self generated orbit prediction” algorithm. EASYTM (Embedded
Assist System) does not require any resources or assist data from the host.
The excellent low power design makes it easy to implement this receiver in power sensitive, battery
supplied applications. The new AlwaysLocateTM power management feature will improve this
behaviour additionally. It adaptively adjusts power consumption depending on the environment and
motion conditions, in order to achive a balance between fix rate, power consumption and position
accuracy.
Very low power requirements (typ 93mW@ 3.3V, tracking for GPS+GLONASS) and internal voltage
regulator makes it easy to run the receiver with various power supplies and allows direct connection
to LiIon batteries.
GNS702 offers the industry’s highest level of navigation sensitivity up to -165dBm1. It has superior
dynamic performance at high velocity and provides effective protection against interference signals
using MTAICTM ( Multi-tone active interference canceller). Up to 12 independent channel
interference continious wave jammers <-80dBm can be eliminated or reduced.
The embedded logger function LOCUS with a 16-hrs on chip memory makes this GPS module a
complete track logger for many applications. With AlwaysLocateTM data logging can be achieved up
to 32-hrs under standard conditions.
In professional timing applications the outstanding high accuracy PPS (pulse per second) hardware
pin is used for synchronization to GPS second. Typical accuracy is 10ns.
1 Note: Based on chip specifications
© GNS-GmbH 2013
V 1.2, Apr 5th 2013
1

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