G - C O M B O
I N S T R U C T I O N M A N UA L
PA G E 4 3
• The chartplotter can receive and display depth, paddlewheel
boat speed and water temperature from an optional
compatible instrument.
• The chartplotter can receive data from an optional
compatible GPS or GPS/DGPS source.
• The chartplotter can send GPS position and other navigation
data to an autopilot or other instrument. An autopilot
requires APB, APA and VTG sentences.
For information on sending NMEA data to the instrument,
contact GME.
During setup to send NMEA data to other instruments, set
NMEA out and specify the NMEA data to send.
5-7 NMEA 2000
NMEA 2000 interface standard was introduced for
communications network to interconnect marine electronic
equipment such as navigation chartplotters, engines, tank level
sensors and others on vessels. The standard is regulated by The
National Marine Electronics Association in the USA.
The chartplotter can be connected to external devices with
NMEA2000 and display information such as following.
• Engines have fuel flow sensors, therefore fuel sensors are
not required.
• The chartplotter can receive and display wind speed and
direction from an optional compatible wind instrument.
• The chartplotter can receive and display depth from an
optional depth instruments.
• The chartplotter can receive and display boat speed and
water temperature from a paddlewheel sensor on a optional
speed instrument.
If connected to a display unit, use a cable compatible with the
NMEA 2000 standard.
5-8 Sonar Transducers
The transducer is a sensor that transmits and receives sound
waves into the water.
• Fit the sonar transducer supplied, following the instructions
in the
Transducer Installation Manual
supplied with
the chartplotter.
• In case of installation of 50/200 kHz transducer, water
speed sensor and water temperature sensor, an optional
through hull dual frequency sonar transducer and through
hull speed/temperature transducer provide a more enhanced
performance. Contact GME for more information.
• Connect the transducer to the chartplotter.
• At the system configuration window, set Sonar and set up
the sonar options.
If you use Y-Cable, the chartplotter can display water
temperature and water speed from the compatible devices and
receive and display the depth from the transducer.
To connect these instruments, please connect the cable to the
unit as the picture below.
5-9 Setup and test
1 Put a blanking cap on any unused connector on the back of
the display unit. Ensure all connectors are plugged in and
the display unit is in place.
2 If the display unit is bracket mounted, adjust tilt and
rotation for best viewing and hand tighten the knob.
3 Insert any required C-MAP chart card.
4 Enter setup data to set up the chartplotter to your
requirements and to set up any optional sensors
or instruments.
5 At the satellite display, check that it picks up GPS satellites.
Wait for the GPS receiver to start up and the GPS satellite to
change to ‘Used in fix’.
