COMNAV GNSS G2 & G2B

The range of professional smart antenna GNSS RTK solutions compute precise positions up to 1 cm accuracy coupled with precision headings within 0.01 degrees to a range of commercial solutions with precise positions up to 2.5 meters with headings within 0.5 degrees. The range of smart antenna features allow the user to self-configure either as base station or rover for a wide range of industry applications. ComNav’s GNSS Position & Heading products are compatible with built-in industry standard interfaces including UHF SATEL radios, Cel modems, Wi-Fi, Bluetooth, NMEA 2000, NMEA 0183, Ethernet, CAN and in some models, the products are IMO compliant and Wheelmark certified.

•  New: Supports both GPS and GLONASS satellites for complete redundancy
•  New: Heading accuracy < 0.25° rms
•  New: Position accuracy < 0.3m 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: IMO Compliant 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 (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

Overview

 

Specification

 
 
SPECIFICATIONS
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:      
< 0.3 m 95% confidence (DGPS)*
< 2.5 m 95% confidence (autonomous, no SA)**
Heading Accuracy:        
< 0.25º rms
Pitch / Roll Accuracy:    
< 1º 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
Timing Output:              
1PPS, 50 ns accuracy, CMOS
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 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
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 cable
AIDING DEVICES
Gyro:                           
Provides smooth heading, fast heading reacquisition
                                    
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
ADDITIONAL OPTIONS
• 30m NMEA 0183 Serial Data Cable
• 6m NMEA 2000® Cable (not IMO compliant)
• Color LCD Sunlight G3 Instrument Display
DIMENSIONS
669.8mm x 122mm x 212.7mm / 26.37” x 4.80” x 8.37“ L x H x W
WEIGHT
G2: 2.2 kg (4.8 lb) / G2B: 2.7 kg (5.9 lb)
* 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.

   

 

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