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  GM900
Industrial GPS USB Half Mini PCI-E Card

    General Description:


The GM900 is built on the robust u blox M9 GNSS chip, which provides exceptional sensitivity and acquisition ti mes for all L1 GNSS systems. The u blox M9 standard precision GNSS platform, which delivers meter level accuracy.
GM900 supports concurrent reception of four GNSS. The high number of visible satellites enables the receiver to select the best signals. This maxi mizes the position accuracy, in particular under challenging conditions such as in deep urban canyons.

Product Name Industrial GPS USB Half Mini PCI-E Card
Model Name

GM900

Version Mini PCI-E (USB)
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    Features

  • 92-channel u-blox M9 engine
    GPS L1 C/A,
    QZSS L1 C/A/S
    GLONASS L10F,
    BeiDou B1I,, Galileo E1B/C
    SBAS L1 C/A : WAAS,EGNOS,MSAS,GAGAN
  • Supports u-blox’ AssistNow Online / AssistNow Offline /AssistNow Autonomous A-GPS
    services and is OMA SUPL / 3GPP compliant.
  • Open sky cold start 24 second / Aided starts 2 second
  • Accuracy 1.5m CEP
  • RoHS compliance.
  • 1 USB 2.0
  • PCI-Express Mini or Half Mini Card form factor

 

   Block Diagram

 

    Performance

  • All value are defined at 25±15°C ,65±20 % RH.
  • Patch characteristics are measured with 70x70 mm ground plane in an anechoic chamber.
  • All satellites at -130 dBm,except Galileo at -127dBm.
  • Dependent on aiding data connection speed and latency.
  • Demonstrated with a good external LNA.
  • CEP, 50%, 24 hours static, -130 dBm, > 6 SVs.
  • 50% @ 30 m/s.
  • Assuming Airborne < 4 g platform.

 

    Active antenna

The recommended maximum antenna supply current for active antennas is 30 mA.

 


    GPS Module

  Characteristics Specification
Receiver Type 92 Channels
GPS L1 C/A, QZSS L1 C/A/S, GLONASS L10F
BeiDou B1I, Galileo E1B/C
SBAS L1 C/A: WAAS, EGNOS, MSAS, GAGAN
Time-To-First-Fix   GPS+ GLO+GAL+BDS
Cold Start(Autonomous): 24s
Hot Start(Autonomous): 2s
Aiding Start: 2s
   
Sensitivity Tracking & Navigation: -167dBm
Reacquisition: -160dBm
Cold Start(autonomous): -148dBm
   
Position accuracy PVT 2.0m CEP
Accuracy of Timepulse signal RMS 30ns
99% 60ns
TimePulse: (Configurable) f=0.25Hz…10MH
   
Velocity accuracy 0.05m/s
Heading accuracy 0.3 degrees
Dynamics ≤4g
Operational limits Altitude 80000m
Velocity 500m/s

   DC Characteristics

  Parameter Min Typ Max Unit
Operating Current (Power Consumption) - - 50 mA
VBAT 1.65 - 3.6 V
VCC 2.7 3.0 3.6 V

  

  Parameter Conditions GPS+GLO+GAL+BDS GPS+GLO GPS Unit
VCC current Acquisition 50 42 37 mA
Tracking
(Continuous mode)
36 31 27 mA
Tracking
(Power save mode)
20 20 19 mA

   Environmental

  Item GM900
Operating Temperature -40 to +85℃
Storage Temperature -40 to +85℃

   Absolute Maximum Ratings

  Parameter Min Max Units
Power Supply Voltage (VCC) -0.5 3.6 V
Input Pin Voltage -0.5 Vcc V

   Evaluation software

The u-center software installation package for the GM900 can be downloaded from the Web:
www.u-blox.com/en/evaluation-software-and-tools.

Once the zip file is downloaded and unzipped, unzip the file in Tools folder and double-click the extracted exe file. The software components will be installed on your system and placed under the “u-blox” folder in the “Start Programs” menu.
u-center is an interactive tool for configuration, testing, visualization and data analysis of GNSS receivers. It provides useful assistance during all phases of a system integration project.

   Package Diagram (Unit: mm )

PCBA

 

 





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