ComNav | G1 GNSS Satellite Compass System with G3 Color Display - NMEA2000 | incl (G1 Compass w/G3 Display)
ComNav | G1 GNSS Satellite Compass System with G3 Color Display - NMEA 2000 | incl (G1 Compass w/ G3 Display)
The ComNav G1 GNSS Satellite Compass System with G3 Color Display combines advanced dual-antenna GNSS technology with an intuitive full-color marine display for precise heading and navigation data. Designed for professional and commercial vessels, it provides accurate heading, position, pitch, and roll information through NMEA 2000 connectivity. The G3 Color Display enhances usability with real-time visual data and intuitive control, making it a reliable solution for modern marine navigation systems.
KEY FEATURES
- New: Supports both GPS and GLONASS satellites for complete redundancy
- New: Heading accuracy < 0.5° rms
- New: Position accuracy < 1.0 m (95% confidence, DGPS)
- New: 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 outputs
- Heading updates from 1 to 20 Hz
- BAUD rate selectable: 4800, 9600, 19200, 38400, 115200
- Fully compatible with onboard NMEA 0183 and NMEA 2000® RADAR, ECDIS, AIS, cameras, SONAR, PC, and autopilots
- Compact integrated surface and pole mounting options
- Pre-programmed default settings for Heading, Rate of Turn, Course Over Ground, Latitude/Longitude position, Time, and Date
- 15-meter serial cable standard (30-meter optional)
- 6-meter NMEA 2000® cable (optional)
- CE certified for EMI and RFI immunity
- Worldwide service
Specifications
| Category | Details |
|---|---|
| Receiver Type | L1, C/A code, with carrier phase smoothing |
| Channels | Two x 32 parallel tracking GPS, GLONASS, SBAS |
| Update Rate | Standard 10 Hz, selectable up to 20 Hz (position and heading) |
| Horizontal Accuracy | < 0.5 m (95% confidence, DGPS)* < 2.5 m (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 |
Communications
| Parameter | Details |
|---|---|
| Serial Ports | 1 full duplex RS-232 and 1 full duplex RS-422 |
| Baud Rates | 4800 – 115200 |
| Correction I/O Protocol | RTCM SC-104 |
| Data I/O Protocol | NMEA 0183, NMEA 2000®, CAN |
| NMEA Heading Messages | $GPHDT, $HEHDT, $HEHDM, $GPROT, $GHEROT, $GPGGA, $GPGSV, $GPVTG, $GPRMC, $GPZDA, $PASHR |
Environmental
| Parameter | Details |
|---|---|
| Operating Temperature | -30ºC to +70ºC (-22ºF to +158ºF) |
| Storage Temperature | -40ºC to +85ºC (-40ºF to +185ºF) |
| Humidity | 95% non-condensing |
Power
| Parameter | Details |
|---|---|
| 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 | Yes |
| Power/Data Connection | 18-pin female circular, IP67 sealed 15m cable |
Aiding Devices
| Device | Function |
|---|---|
| Gyro | Provides reliable < 1° heading for up to 3 minutes when GPS signal is lost |
| Tilt Sensor | Assists in fast start-up of heading solution |
Physical
| Parameter | Details |
|---|---|
| Dimensions (L × H × W) | 435.8 mm × 70.1 mm × 174.4 mm (17.16” × 2.76” × 6.87”) |
| Weight | 1.1 kg (2.5 lb) |
Notes
* Accuracy depends on multipath environment, number of satellites in view, satellite geometry, baseline length (for local services), and ionospheric activity.
** Accuracy depends on multipath environment, number of satellites in view, and satellite geometry.
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