ComNav | G3 System with G2 Compass and G3 Display - NMEA 0183 *(IMO)
ComNav | G3 System with G2 Compass and G3 Display - NMEA 0183 (IMO)
The ComNav G3 System with G2 Compass and G3 Display (NMEA 0183 IMO) is a professional-grade satellite compass system designed to deliver exceptional accuracy and reliability for marine navigation. Combining the precision of the G2 GNSS Compass with the intuitive G3 Color Display, this IMO-approved solution ensures stable heading, positioning, and motion data even in challenging environments. Engineered for commercial and government vessels, the G3 System enhances autopilot performance and improves situational awareness with real-time data visualization.
KEY FEATURES
- Engineered enhancements to exceed sealed IP67 rating
- Heading updates 1 to 20 Hz
- BAUD Rate selectable: 4800, 9600, 19200, 38400,115200
- Pre-programmed default settings for Heading, Rate of Turn, Course over Ground, Lat/Long position, Time & Date
- CE certified for EMI and RFI immunity
- IMO compliant, Wheelmark certified
- Optional G3 color display system
- Extended 2 year warranty
- Heave, Pitch, Roll and Rate of Turn as standard output
- Operating temp -30°C to +70°C
- Power supply isolated from serial ports
- Tilt sensor assists in fast start-up of heading solution
Specifications
| Category | Detail |
|---|---|
| Receiver Type | L1, C/A code, with carrier phase smoothing |
| Channels | Two × 32 parallel tracking GPS, GLONASS, SBAS |
| Update Rate | Standard 10 Hz, selectable up to 20 Hz (position and heading) |
| Horizontal Accuracy | < 0.3 m (95% confidence, DGPS)* < 2.5 m (95% confidence, autonomous, no SA)** |
| Heading Accuracy | < 0.25° rms |
| Pitch / Roll Accuracy | < 1° rms |
| Heave Accuracy | < 30 cm rms |
| Rate of Turn | 45°/sec max |
| Start-up Time | < 60 sec typical |
| Heading Fix | < 10 sec |
| Satellite Reacquisition | < 1 sec |
| Timing Output | 1PPS, 50 ns accuracy, CMOS |
System Configuration & Options
| Parameter | Detail |
|---|---|
| Operating Voltage | 10–36 VDC |
| Additional Options | - 30 m NMEA 0183 Serial Data Cable - 6 m NMEA 2000® Cable (not IMO compliant) - Color LCD Sunlight G3 Instrument Display |
Beacon Receiver Details (G2B)
| Parameter | Details |
|---|---|
| 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
| Parameter | Details |
|---|---|
| Serial Ports | 1 full-duplex RS-232 and 1 full-duplex RS-422 |
| Baud Rates | Selectable 4800 – 115200 |
| Correction I/O Protocol | RTCM v2.3 (DGPS), RTCM SC-104 |
| Data I/O Protocol | NMEA 0183, NMEA 2000®, Proprietary ASCII |
| 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
| Parameter | Details |
|---|---|
| Operating Temperature | -32°C to +74°C (-25°F to +165°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Humidity | 0–99% non-condensing |
Power
| Parameter | Details |
|---|---|
| Input Voltage | 10–36 VDC |
| Power Consumption | ~3 W nominal |
| Current Consumption | ~250 mA @ 12 VDC |
| Isolation | Power supply isolated from serial ports |
| Reverse Polarity Protection | Yes |
Mechanical
| Parameter | Details |
|---|---|
| Weight | G2: 2.2 kg (4.8 lb) G2B: 2.7 kg (5.9 lb) |
| Power/Data Connection | 18-pin female circular, IP67 sealed cable |
Aiding Devices
| Device | Details |
|---|---|
| Gyro | Provides smooth heading, fast heading reacquisition, and reliable < 1° heading for up to 3 minutes during GPS loss (static conditions) |
| Tilt Sensor | Assists in fast start-up of heading solutions |
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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XYZ Battery | 48V 100AH (REFURBISHED)
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Frequently Asked Questions
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