G1 GNSS Satellite Compass


Accurate Heading, Position

and Rate of Turn


GNSS Satellite Compass

New: Supports both GPS and GLONASS satellites for complete redundancy

New: Heading accuracy < 0.5° rms

New: Position accuracy < 1.0m 95% confidence (DGPS)

New: An integrated 9 Axis Inertial Measurement Core (IMC technology) provides enhanced roll, tilt and heading stability even during momentary loss of satellite signals

New: G3 color display system (optional)

New: Engineered enhancements to exceed sealed IP67 rating

New: Extended 2 year warranty

NMEA 0183 and NMEA 2000® interface

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 and pole mount

Pre-programmed default settings for Heading, Rate of Turn, Course over Ground, Lat/Long position, Time & Date

15 meter serial cable standard (30 meter optional)

6 meter NMEA 2000® Cable (Optional)

CE certified for EMI and RFI immunity

Worldwide service
















Receiver Type:

L1, C/A code, with carrier phase smoothing





Two x 32 parallel tracking GPS, GLONASS, SBAS




Update Rate:

Standard 10 Hz, Selectable up to 20 Hz







(position and heading)




Horizontal Accuracy:

< 0.5m 95% confidence (DGPS)*







< 2.5m 95% confidence (autonomous, no SA)**




Heading Accuracy:

< 0.50° rms




Pitch / Roll Accuracy:

< 1° rms




Heave Accuracy:

< 30 cm rms




Rate of Turn:

45º / sec max




Start-up Time:

< 60 sec typical




Heading Fix:

< 10 sec




Satellite Reacquisition:

< 1 sec









Serial Ports:

1 full duplex R2-232 and 1 full duplex RS-422




Baud Rates:

4800 - 115200




Correction I/O Protocol:





Data I/O Protocol:

NMEA 0183, NMEA 2000®, CAN




NMEA Heading Messages:
















10 - 36VDC







Operating Temperature:

-30ºC to +70ºC (-22ºF to + 158ºF)

Storage Temperature:

-40ºC to +85ºC (-40ºF to + 185ºF)


95% non-condensing


Input Voltage:

10 to 36 VDC

Power Consumption:

~ 2.8 W nominal

Current Consumption:

~ 240 mA @ 12 VDC

Power Isolation:

Power supply isolated from serial ports

Reverse Polarity Protection:


Power/Data Connection:

18-pin female circular, IP67 sealed 15m cable



Provides reliable < 1º Heading for up to 3


minutes when loss of GPS has occurred

Tilt Sensor:

Assists in fast start-up of heading solution

*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

DIMENSIONS: 435.8mm x 70.1mm x 174.4mm / 17.16”x 2.76”x 6.87“ LxHxW

WEIGHT: 1.1 kg (2.5 lb)


• 30m NMEA 0183 Serial Data Cable

• 6m NMEA 2000® Cable

• Color LCD Sunlight G3 Instrument Display

Represented by:

ComNav Marine Ltd.

#15-13511 Crestwood Place,

Richmond, British Columbia • Canada • V6V 2G1

Phone: 604-207-1600 • Fax: 604-207-8008

E-mail: sales@comnav.com


Worldwide Service

Printed in Canada

Specifications subject to change without notice

Rev: May 2015



Acrobat Document
– 0,000,235.7 KB