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ComNav G2 and G2B GNSS Satellite Compass

ComNav G2 and G2B GNSS Satellite Compass

The ComNav G2 and G2B GNSS Satellite Compass provides true heading measurement with an accuracy of 0.25° RMS. The system uses differential GPS to measure heading and therefore is not subject to magnetic variation or deviation. Heading data is transmitted to an indicator or autopilot via a standard NMEA0183 or NMEA2000 data output. The system is IMO compliant and Wheelmark and USCG approved, and may be used as a primary heading source.

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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

 

Product

Ref

Price

Product Description

11220001

£2,232.96

ComNav G2 GNSS Satellite with Compass Differential GPS (DGPS) correction and 15m cable. Output: NMEA0183. Update rate: Heading & position updates at up to 20 times per second, and can operate at sustained turn rates up to 90° per second. Power Supply 10 to 36vDC (240mA @ 12vDC). The G2 contains a ComNav receiver module (containing two GNSS receivers, a 3-axis gyro, a 3-axis accelerometer and a 3-axis magnetometer), dual GNSS antennas and a power supply. Dimensions: 669.8 x 122 x 212.7mm, Weight 2.2Kg. CE certified for EMI and RFI immunity, Worldwide service.
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11220002

£2,320.76

ComNav G2 GNSS Satellite with Compass Differential GPS (DGPS) correction and 30m cable. Output: NMEA0183. Update rate: Heading & position updates at up to 20 times per second, and can operate at sustained turn rates up to 90° per second. Power Supply 10 to 36vDC (240mA @ 12vDC). The G2 contains a ComNav receiver module (containing two GNSS receivers, a 3-axis gyro, a 3-axis accelerometer and a 3-axis magnetometer), dual GNSS antennas and a power supply. Dimensions: 669.8 x 122 x 212.7mm, Weight 2.2Kg. CE certified for EMI and RFI immunity, Worldwide service.
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11220003

£3,119.39

ComNav G2B GNSS Satellite with Compass Differential GPS (DGPS) correction and 15m cable. Output: NMEA0183. Update rate: Heading & position updates at up to 20 times per second, and can operate at sustained turn rates up to 90° per second. Power Supply 10 to 36vDC (240mA @ 12vDC). The G2B contains a ComNav receiver module (containing two GNSS receivers, a 3-axis gyro, a 3-axis accelerometer and a 3-axis magnetometer), a DGPS Radio beacon receiver module, dual GNSS antennas, an H-field beacon signals antenna and a power supply. Dimensions: 669.8 x 122 x 212.7mm, Weight 2.7Kg. CE certified for EMI and RFI immunity, Worldwide service.
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11220004

£3,222.85

ComNav G2B GNSS Satellite with Compass Differential GPS (DGPS) correction and 30m cable. Output: NMEA0183. Update rate: Heading & position updates at up to 20 times per second, and can operate at sustained turn rates up to 90° per second. Power Supply 10 to 36vDC (240mA @ 12vDC). The G2B contains a ComNav receiver module (containing two GNSS receivers, a 3-axis gyro, a 3-axis accelerometer and a 3-axis magnetometer), a DGPS Radio beacon receiver module, dual GNSS antennas, an H-field beacon signals antenna and a power supply. Dimensions: 669.8 x 122 x 212.7mm, Weight 2.7Kg. CE certified for EMI and RFI immunity, Worldwide service.
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11220006

£2,232.96

ComNav G2 GNSS Satellite with Compass Differential GPS (DGPS) correction and 6m cable. Output: NMEA2000. Update rate: Heading & position updates at up to 20 times per second, and can operate at sustained turn rates up to 90° per second. Power Supply 10 to 36vDC (240mA @ 12vDC). The G2 contains a ComNav receiver module (containing two GNSS receivers, a 3-axis gyro, a 3-axis accelerometer and a 3-axis magnetometer), dual GNSS antennas and a power supply. Dimensions: 669.8 x 122 x 212.7mm, Weight 2.2Kg. CE certified for EMI and RFI immunity, Worldwide service.
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