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ComNav G2 & G2B Installation & Operation 

Document PN 29010093 V1.5 

- 1 - 

16 December 2016 

 
 
 

Welcome 

Congratulations on your purchase of a ComNav Marine G2/G2B Satellite Compass!  At 
ComNav, we are dedicated to reliability & quality in all our products, these products are a 
good example of that.  We promise to do our best to ensure your satisfaction with your new 
G2/G2B Satellite Compass. 
 

Warranty Notice 

Prior to the installation and/or operation of the equipment, ensure that you read, understand, 
and accept the conditions of the warranties as detailed in the 

Warranty Information 

 section of  

this manual. 
 
 

General Notice 

This document, ComNav part number 29010093 Version 1 Revision 5, is the approved 
Installation and Operation Manual for use with G2 & G2B Satellite Compasses.  Where 
versions of this manual exist in other languages, the English version shall be considered 
authoritative. 
 

Special note 

The beacon configuration information in Appendix 3 and Appendix 4 applies ONLY to G2B 
with a firmware version 1.2.17 or later.  

 

 

Summary of Contents for Vector G2

Page 1: ...Installation Operation Manual G2 G2B Satellite Compasses T Th hi ir rd d G Ge en ne er ra at ti io on n PN 29010093 V1 5 COMPLIES WITH CE REGULATIONS...

Page 2: ......

Page 3: ...installation and or operation of the equipment ensure that you read understand and accept the conditions of the warranties as detailed in the Warranty Information section of this manual General Notice...

Page 4: ...n configuration Add information for using Vector G2 cable 1R4 26 November 2016 Revise mounting instruction Revise system overview Revise description about GPS and GLONASS Revise instructions for chang...

Page 5: ...ted installation details Those sections apply only to the G2B Manual Format This manual has been formatted to be printed on both sides of the pages of the manual and on standard Letter sized paper 8 5...

Page 6: ...ComNav G2 G2B Installation Operation Document PN 29010093 V1 5 4 16 December 2016...

Page 7: ...ception Considerations 20 Radiobeacon Reception Considerations 21 Location Orientation 23 Mounting 25 Alignment 28 Wiring for NMEA 0183 system 28 Cables Extensions 29 Cable Colour Codes 29 Power Input...

Page 8: ...Making Changes 52 Using a Terminal Program 52 Using a Navigator G2 53 Using a G3 Compass Display 53 Customising Fine tuning the Configuration 53 Smoothing Output Data with Time Constants 53 Changing...

Page 9: ...acon configuration example 70 Appendix 5 71 Retrofit G2 G2B to Vector G2 G2B 71 Wheelmark Compliance Certificate ____________________________________________________72 License Agreement ______________...

Page 10: ...Installation viewed from above Heading bias is 90 at this orientation 24 Figure 9 Surface mount bracket assembly 25 Figure 10 Surface mount hole measurements 26 Figure 11 Surface Mount bracket assembl...

Page 11: ...nstants 54 Table 12 Time Constant Formulae 55 Table 13 GNSS Receiver Specifications 60 Table 14 DGPS Beacon Receiver Specifications 61 Table 15 System Interface Specifications 61 Table 16 Power Specif...

Page 12: ...ComNav G2 G2B Installation Operation Document PN 29010093 V1 5 10 16 December 2016...

Page 13: ...ComNav G2 G2B Installation Operation Document PN 29010093 V1 5 11 16 December 2016 Introduction...

Page 14: ...ComNav G2 G2B Installation Operation Document PN 29010093 V1 5 12 16 December 2016...

Page 15: ...es fast start up and signal re acquisition times heading position updates at up to 20 times per second and can operate at sustained turn rates up to 90 per second The G2 is a complete Satellite Compas...

Page 16: ...ComNav G2 G2B Installation Operation Introduction Document PN 29010093 V1 5 14 16 December 2016 Figure 2 Typical NMEA 0183 G2 System setup...

Page 17: ...tenna When using DGPS corrections SBAS external or Radio beacon the G2 is capable of under one metre precision for position sensing The GPS antennas inside the G2 s enclosure are separated by approxim...

Page 18: ...ComNav G2 G2B Installation Operation Document PN 29010093 V1 5 16 16 December 2016 Installation...

Page 19: ...ComNav G2 G2B Installation Operation Document PN 29010093 V1 5 17 16 December 2016...

Page 20: ...If AC tools are used they must be plugged into a circuit that is adequately protected against Ground Faults and other safety hazards in accordance with local electrical codes Power Supply NMEA 2000 se...

Page 21: ...llation Operation Document PN 29010093 V1 5 19 16 December 2016 Mechanical on page 65 The G2 unit operates in an environment with up to 100 relative humidity The G2 unit and cable are waterproof but a...

Page 22: ...id blocking of satellites signals Figure 3 Choose a mounting location If G2 cannot be mounted above all objects mount it where it has a clear view of the sky 85 from zenith Figure 4 Clear view require...

Page 23: ...ensors can determine the attitude of the mounted unit Compensation for any horizontal offset bias can be configured if necessary see PBIAS on page 66 table 19 The G2 computes its position as the geogr...

Page 24: ...nstallation Operation Document PN 29010093 V1 5 22 16 December 2016 have all equipment accessories that you intend to use during normal operation turned on to observe the full effect of other electron...

Page 25: ...ientations for the G2 Normally the G2 will be mounted so that the longitudinal axis is aligned with vessel s fore aft centreline or is parallel to that centreline In this orientation the G2 can output...

Page 26: ...ne In this orientation the G2 can output both the Heading and the Roll of the vessel Figure 8 Heading Roll Installation viewed from above Heading bias is 90 at this orientation The heading from a GPS...

Page 27: ...need to set the heading bias to 90 Mounting The G2 allows for Surface mounting options Surface mount for mounting the G2 on a flat surface such as a cabin s roof a mounting plate on the mast and so on...

Page 28: ...holes to surface mount the antenna 2 Push the flying lead end of the cable through the center opening of the mounting gasket Figure 6 3 Align the connector key tab to the slot of the receptacle mount...

Page 29: ...ghten all 8 bolts 6 Once all the M8 bolts are placed tighten the bolts with a ratchet to fully secure the unit to the surface Take care to avoid over tightening Figure 12 Assembled Deck Mount bracket...

Page 30: ...ignment accuracy when using the Long sight method is approximately 1 using the Short sight method alignment is accurate to approximately 2 5 Figure 13 Long sight Alignment If another accurate source o...

Page 31: ...terminal strips or use soldered or crimped marine grade and standards wire to wire connection techniques If you are using the G2 unit with a Navigator G2 GPS Compass Display the Navigator G2 s Distri...

Page 32: ...also a separate Alarm signal from the G2 using the contacts of a relay In an IMO system you must connect an audible alarm device to the G2 Signal Grounds Whether or not to connect the G2 s Signal Grou...

Page 33: ...of the connector s label is shown to the left of the table Note 1 The signal polarities on P2 P3 SPUs are labeled based NMEA 0183 protocol with an A for negative and B for positive The signal polariti...

Page 34: ...put signals if you need those see page 5 6 in the 5001 manual Other ComNav Autopilot Systems All other ComNav autopilots require the use of an optional Sine Cosine Interface Box ComNav PN 21010004 wit...

Page 35: ...ComNav G2 G2B Installation Operation Document PN 29010093 V1 5 33 16 December 2016 Figure 14 Typical Wiring Diagram of a G2 System with Autopilot and Compass Display...

Page 36: ...have a real COM port Instead they only have one or more USB ports and use driver software to allow application programs to access the USB ports as virtual COM ports If the PC only has USB ports an ex...

Page 37: ...Table 3 PC COM Port DE9 to G2 s RS 232 Port A DB25 Connectors If the PC has a DB25 COM port connector connect the wires from the G2 to a DB25 female connector aka DB25 S as follows DB25 Pin Wire Color...

Page 38: ...alues Figure 16 Typical wiring with a PC for G2 Control Display The PC would typically be running a dumb terminal program e g the Hyperterminal program that comes with Windows on PCs Using a G2 with a...

Page 39: ...ComNav G2 G2B Installation Operation Document PN 29010093 V1 5 37 16 December 2016 Figure 17 Typical wiring with a PC based Navigation Program...

Page 40: ...on the Admiral P3 at any rate But it depends largely on the electrical drive capabilities of the PC s COM port circuits As well in a technical sense it violates the rules of the NMEA 0183 Standard si...

Page 41: ...not sure about your G2 Figure 18 shows how a G2 works with a G3 Display or multiple G3 Displays Please be aware that this installation is not NMEA 2000 compliant and should not be connected to an NME...

Page 42: ...Pink Black stripe NET_C Black NET_C Connect to G2 power or a separate power negative Blue CAN_L Blue CAN_L White CAN_H White CAN_H Bare Drain Clear Shield If a separate power NMEA 2000 power is used D...

Page 43: ...ComNav G2 G2B Installation Operation Document PN 29010093 V1 5 41 16 December 2016 Operation...

Page 44: ...ComNav G2 G2B Installation Operation Document PN 29010093 V1 5 42 16 December 2016...

Page 45: ...2 is to turn it on Power should always be applied to the G2 by means of a power switch in series with a suitable fuse or circuit breaker see page 29 Automatic Continuous Operation When first powered u...

Page 46: ...ors and satellite orbit perturbations are some examples But to improve the accuracy of position computations even more the G2 can also acquire and use Differential GPS DGPS correction data from one of...

Page 47: ...so important to mount the G2 as far away as possible from reflecting surfaces see page 20 Moving Base Station RTK The technique of computing the location of the Secondary GPS antenna with respect to...

Page 48: ...l heading output will return automatically once satellite signals are re acquired As well the gyro helps improve and smooth filter the heading and rate of turn data output by the G2 Operation in NMEA...

Page 49: ...eering parameters is being used by the autopilot Baud rate is always 4800 When used with other types of equipment e g a Chartplotter a Navigation program on a PC a Radar set typically there is other i...

Page 50: ...M Datum Reference X X X 1 GGA Global Positioning System Fix Data 1 X X 20 GLL Geographic Position Latitude Longitude 1 X X 20 GNS GNSS Fix Data X X X 20 GRS GNSS Range Residuals X X X 20 GSA GNSS DOP...

Page 51: ...rate must be 4800 For operation with other equipment other Baud rates may be allowable depending on the equipment Electrical Interface Another factor in using the G2 is what type of the electrical int...

Page 52: ...ble 8 Alert Condition Alert Id No position for more than 60 seconds 10001 No heading for more than 60 seconds 10002 Table 8 Alert conditions G2 broadcast ALC and ALR at a regular base When an alert co...

Page 53: ...ovides are listed in Table 10 PGN Description Max update rate Default update rate Hz 126992 System time 10 1 127250 Vessel heading 20 10 127251 Rate of turn 20 10 127257 Attitude 10 1 127258 Magnetic...

Page 54: ...Navigator G2 GPS Compass Display in the IMO model or in an NMEA 2000 installation a G3 Compass Display Using a Terminal Program If you have a terminal program already installed in your computer you ca...

Page 55: ...an IMO model or a G2 in a NMEA 2000 network For the full descriptions please refer to G3 Compass Display s user manual However G3 compass display cannot be used to configure NMEA 0183 ports or change...

Page 56: ...uld begin to be adversely affected For example an autopilot will begin to appear sluggish in its steering performance if the heading time constant is increased too far That s because the time lag on h...

Page 57: ...hange the enabled sentences and or update rates that the G2 is outputting on one or both ports you may need to change the Baud rate with the PCMNBAUD command The factory default Baud rate for all port...

Page 58: ...ComNav G2 G2B Installation Operation Document PN 29010093 V1 5 56 16 December 2016 Care Maintenance...

Page 59: ...ComNav G2 G2B Installation Operation Document PN 29010093 V1 5 57 16 December 2016...

Page 60: ...mechanical connections are secure An ANNUAL inspection should be undertaken thereafter General Precautions A few precautions will keep the unit in prime condition The G2 s enclosure does not require a...

Page 61: ...ComNav G2 G2B Installation Operation Appendices Document PN 29010093 V1 5 59 16 December 2016 Appendices...

Page 62: ...Roll accuracy 3 1 rms Rate of Turn 45 per second max Start Up time 60 seconds typical Heading Fix 10 seconds typical Satellite Reacquisition 1 second Compass Safe Distance 25cm Table 13 GNSS Receiver...

Page 63: ...ut Protocol NMEA 0183 proprietary ASCII see Table 7 NMEA 2000 Data Input Protocol NMEA 0183 proprietary NMEA 2000 Timing Output 1 1 PPS 50 ns accuracy CMOS level active Hi rising edge Optional Heading...

Page 64: ...rameter Specification Dimensions 67 cm x 21 3 cm x 12 2 cm 26 37 in x 8 37 in x 4 80 in not including mount Weight 2 2 Kg G2 2 7 Kg G2B Enclosure Rating IP 67 Operating Temperature 32 C to 74 C Storag...

Page 65: ...ComNav G2 G2B Installation Operation Appendices Document PN 29010093 V1 5 63 16 December 2016 Appendix 2 ComNav Proprietary NMEA 0183 sentences descriptions...

Page 66: ...where 0 disables output of the sentence and 1 enables it or the specific words e g NO YES to be used The units of the various value parameters depend on the affected function or setting in the G2 e g...

Page 67: ...10 or 20 1 2 3 PCMNASC GPROT rate port_id ROT 0 0 2 1 5 10 or 20 1 2 3 PCMNASC GPVTG rate port_id VTG 0 0 2 1 5 10 or 20 1 2 3 PCMNASC GPZDA rate port_id ZDA 0 0 2 1 5 10 or 20 1 2 3 Table 18 Commands...

Page 68: ...al separation between the antennae In the G2 G2B the physical antenna separation is fixed at 0 5 metres so this command should only be used to check that the MSEP value is set correctly to 0 5m PCMNAT...

Page 69: ...frequency in Hz SAVE Saves the channel map SCAN FREQ Sets gets the scanning mode 1 Full range scanning at 500 Hz steps 2 Channel map scanning Up to 32 channels are available in the channel map SIGTYPE...

Page 70: ...e port a PC COM port and through a general hyperterminal style program you can check the beacon receiver status and change its configuration easily Enter and exit the beacon configuration mode Before...

Page 71: ...any other number led by the beacon receiver is too busy to take the input In such case you should send the command again This applies all commands you send to the beacon Note response values without t...

Page 72: ...Note by always use the lowest channel numbers you are more likely to replace an existing channel thus to keep the number of total table items low If you have more than a couple of frequencies to ente...

Page 73: ...e access to the NMEA 2000 port when you use the Vector cable 3 The color code of the vector cable changes slightly after using this converter You have to rewire your devices based on Table 25 Vector B...

Page 74: ...ComNav G2 G2B Installation Operation CE Compliance Statement Document PN 29010093 V1 5 72 16 December 2016 Wheelmark Compliance Certificate...

Page 75: ...ComNav G2 G2B Installation Operation CE Compliance Statement Document PN 29010093 V1 5 73 16 December 2016...

Page 76: ...h the Navigation requirements of Marine Equipment Directive 96 98 EC and the last modification by Directive 2012 32 EU and therefore bears the CE marking It has been tested according to the applicable...

Page 77: ...ncorporate the Firmware in whole or in part in any other product or create derivative works based on the Firmware in whole or in part c Publish disclose copy reproduce or transmit the Firmware in whol...

Page 78: ...are ComNav may also issue a refund for the price paid by Licensee less an amount on account of amortization calculated on a straight line basis over a deemed useful life of three 3 years 12 LIMITATION...

Page 79: ...all related material and any magnetic or optical media provided to Licensee The provisions of Sections 4 5 6 7 12 17 21 and 23 herein shall survive the expiry or termination of this Agreement for any...

Page 80: ...the Equipment in violation of the instructions set forth in the Manual c Shipping alterations or incorrect and or unauthorized service d Accident exposure of the Equipment to excessive heat fire light...

Page 81: ...ent NOTICE OF DEFECT The Limited Warranty will not apply with respect to any defective Equipment unless written notice of such defect is given to ComNav by mail to the address for ComNav set forth bel...

Page 82: ...t below and within the time limits set out above for Notice of Defect ComNav Marine Ltd 13511 Crestwood Place Ste 15 Richmond BC V6V 2G1 WARNING The Equipment is an aid to navigation only It is not in...

Page 83: ...ComNav G3 G3B Installation Operation Document PN 29010093 V1 5 81 16 December 2016...

Page 84: ...ComNav G3 G3B Installation Operation Document PN 29010093 V1 5 82 16 December 2016 Index...

Page 85: ...ComNav G3 G3B Installation Operation Document PN 29010093 V1 5 83 16 December 2016...

Page 86: ...48 49 52 53 64 D DGPS 43 44 45 55 60 61 78 F Fuse Replacement 58 G G2B 1 3 15 44 55 58 60 66 68 89 Ground 30 35 38 40 48 54 65 H HyperTerminal 52 I Installation 1 31 32 38 53 N Navigator G2 31 32 52...

Page 87: ...ComNav G2 G2B Installation Operation Document PN 29010093 V1 5 85 16 December 2016...

Page 88: ...ComNav G2 G2B Installation Operation Document PN 29010093 V1 5 86 16 December 2016 User Notes...

Page 89: ...ComNav G2 G2B Installation Operation Document PN 29010093 V1 5 87 16 December 2016...

Page 90: ...0 0 GPGRS 0 0 2 1 5 10 or 20 0 0 0 GPGSA 0 0 2 1 0 2 0 0 GPGST 0 0 2 1 0 2 0 0 GPGSV 0 0 2 1 0 2 0 0 GPHDG 0 0 2 1 5 10 or 20 0 0 0 GPHDM 0 0 2 1 5 10 or 20 0 0 0 GPTHS 1 0 0 2 1 5 10 20 50 50 0 0 GP...

Page 91: ...re Aft or Athwart ships Fore Aft ROLL NO YES NO HBIAS 180 0 to 180 0 0 0 PBIAS 15 0 to 15 0 0 0 DIFF NONE WAAS EXTERNAL G2B also BEACON G2 NONE G2B BEACON NMEAHE 0 1 0 COGTAU 0 02 to 200 0 0 0 HTAU 0...

Page 92: ...ComNav G2 G2B Installation Operation User Notes Document PN 29010093 V1 5 90 16 December 2016 Notes...

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