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Datasheet

G2 & G2B GNSS Satellite Compass

Description

Features

  • Supports both GPS and GLONASS satellites for complete redundancy
  • Heading accuracy < 0.25° rms
  • Position accuracy < 0.3m 95% confidence (DGPS)
  • An integrated 9 Axis Inertial Measurement Core (IMC technology) provides enhanced roll, tilt and heading stability even during momentary loss of satellite signals
  • IMO Compliant G3 color display system (optional)
  • Engineered enhancements to exceed sealed IP67 rating
  • Extended 2 year warranty
  • NMEA 0183 and NMEA 2000® interface
  • Type approved as primary heading and positioning device
  • Heave, Pitch, Roll and Rate of Turn as standard output
  • Heading updates 1 to 20 Hz
  • BAUD Rate selectable: 4800, 9600, 19200, 38400,115200
  • Fully compatible with on board NMEA 0183 and NMEA 2000® RADAR, ECDIS, AIS, Cameras, SONAR, PC and Autopilots
  • Compact integrated surface mounting (pole mount optional)
  • IMO Compliant, Wheelmark and USCG approved
  • Pre-programmed default settings for Heading, Rate of Turn, Course over Ground, Lat/Long position, Time & Date
  • 1PPS output standard
  • 15 meter serial cable standard (30 meter optional)
  • 6 meter NMEA 2000® Cable (Optional)
  • CE certified for EMI and RFI immunity
  • Worldwide service

 

 

SPECIFICATIONS:
Receiver Type: L1, C/A code, with carrier phase smoothing
Channels: Two x 32 parallel tracking GPS, GLONASS, SBAS Update Rate: Standard 10Hz, Selectable up to 20 Hz (position and heading)
Horizontal Accuracy: < 0.3m 95% confidence (DGPS)* < 2.5m 95% confidence (autonomous, no SA)**
Heading Accuracy: < 0.25° rms
Pitch / Roll Accuracy: < 1° rms
Heave Accuracy: < 30 cm rms
Rate of Turn: 90º / sec max
Start-up Time: < 60 sec typical
Heading Fix: < 10 sec
Satellite Reacquisition: < 1 sec
BEACON RECEIVER SPECIFICATIONS (G2B)
Channels: 2-channel, parallel tracking
Frequency Range: 283.5 to 325 kHz
Operating Modes: Automatic (signal strength or range) and manual
Compliance: IEC 61108-4 Beacon Standard
 
COMMUNICATIONS
Serial Ports: 1 full duplex R2-232 and 1 full duplex RS-422
Baud Rates: Selectable4800 – 115200
Correction I/O Protocol: RTCM v2.3 (DGPS), RTCM SC-104
Data I/O Protocol: NMEA 0183, NMEA 2000®, Proprietary ASII
Heading Warning I/O: Open relay system indicates invalid heading
NMEA Heading Messages: $GPHDT, $GPROT, $PSAT, $GPHDM, $GPHDG
Timing Output: 1PPS CMOS, active low, 10KΩ,10pF load
ENVIRONMENTAL
Operating Temperature: -32ºC to +74ºC (-25ºF to + 165ºF)
Storage Temperature: -40ºC to +85ºC (-40ºF to + 185ºF)
Humidity: 0 – 99% non-condensing
POWER  
Input Voltage: 10 to 36 VDC
Power Consumption: ~ 3 W nominal
Current Consumption: ~ 250 mA @ 12 VDC
Isolation: Power supply isolated from serial ports
Reverse Polarity Protect: Yes
MECHANICAL
Weight: G2: 2.2 kg (4.8 lb) / G2B: 2.7 kg (5.9 lb)
Power/Data Connection: 18-pin female circular, IP67 sealed 15m cable
AIDING DEVICES
Gyro: Provides smooth heading, fast heading reacquision and reliable < 1º heading for periods up to 3 minutes when loss of GPS has occured (static conditions)
Tilt Sensor: Assists in fast start up of heading solutions
 * Depends on multipath environment, number of satellites in view, satellite geometry, baseline length (for local services), and Ionospheric activity.
 ** Depends on multipath environment, number of satellites in view, and satellite geometry