ComNav | G1 GNSS Satellite Compass - NMEA 2000 | with 6m Cable
ComNav | G1 GNSS Satellite Compass - NMEA 2000 | with 6m Cable
The ComNav G1 GNSS Satellite Compass (NMEA 2000) delivers precise heading and positioning through dual-antenna GNSS technology. Designed for high-performance marine navigation, it offers fast start-up, superior signal stability, and accurate data output even in challenging sea conditions. This model includes a 6-meter cable for flexible installation, ensuring seamless integration with NMEA 2000 networks for professional and commercial vessels.
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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