17
Control Head Setup
4. Confirm the Heading Sensor Operation
It is important to confirm that the Heading Sensor is installed correctly by reviewing
the heading digital readout.
1. Main Menu: Press the MENU key twice.
2. Select the Chart tab > North Reference > Magnetic.
3. Press the EXIT key.
4. Select the Setup tab > Select Readouts (G3N models) or Edit Data Boxes (G4N
models).
NOTE:
If the Select Readouts or Edit Data Boxes menu option does not
appear under the Setup tab, change the User Mode to Custom. Select Main
Menu > Setup tab > User Mode > Custom.
5. Select a Readout position or Data Box position and use the RIGHT or LEFT
Cursor keys to select Vessel. Then select Heading. Select another Readout
position or Data Box and select Course Over Ground.
6. Press the EXIT key until the Main Menu is closed.
7. Press and hold the VIEW key. Select Chart > Chart View.
8. With a Chart View displayed on-screen, rotate your transducer assembly so
that it is pointing at a known object on the horizon (like land), and compare
the Heading digital readout against your chart.
Adjust (G3N):
To adjust the zero point of the Heading Sensor, select Main
Menu > Navigation tab > Heading Offset. Press the RIGHT or LEFT Cursor
keys to adjust the setting.
Adjust (G4N):
To adjust the zero point of the Heading Sensor, select Main
Menu > Data Sources tab > Data Offsets> Heading Adjustment. Press the
RIGHT or LEFT Cursor keys to adjust the setting.
If the procedure failed:
If the Heading digital readout is significantly off, you
may need to adjust the installation of the ice adapter base. Rotate the base
so that the Heading Sensor points in the same direction as the transducer.
The Heading Sensor might also be affected by magnetic interference. Check
for possible magnetic disturbances in the area.
3. Test MEGA 360 Imaging on the Control Head
It is important to confirm that the MEGA 360 Imaging transducer is providing sonar
returns to the display. The instructions in this section should be performed at trolling
speeds in calm, open water, in a large area that is far from shallow water, boats, or
other obstacles.
WARNING!
The pod should NOT be in the water during high speed travel. The pod
should only be deployed when the boat is traveling at trolling speeds.
1. Press and hold the VIEW key.
2. Select Sonar > 360 View.
3. The sonar returns from the MEGA 360 scan will begin to display on the
MEGA 360 View. Review the display for the following information and see the
illustration
Reviewing the 360 View
.
•
Bottom:
Confirm that the bottom is visible on-screen.
•
Blocked Beams:
If the beams hit a hard surface, it will appear as bright
white on the display. If the beams are blocked by any objects, move the
objects if possible. You can also adjust the 360 Range on the X-Press Menu
to see more or less detail on the display. In some cases, the trolling motor
will appear on the display as a shadow.
4.
Stop Pinging:
When you are finished reviewing the operation, press the
MENU key once. Select 360 Pinging, and press the LEFT Cursor key.
Reviewing the 360 View
trolling motor
shadow
bottom return
