Humminbird MEGA Live, Manual

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56 Control Head Setup
7. Confirm the Humminbird GPS Heading Sensor Operation
(Optional)
It is important to confirm that the optional Humminbird GPS Heading Sensor is
installed correctly by reviewing the heading digital readout (for Minn Kota Heading
Sensor instructions, see your
i-Pilot Link Owner’s Manual ).
NOTE: This procedure should be performed at slow speeds, in calm, open water, in
a large area that is far from shallow water, boats, or other obstacles.
APEX/SOLIX Series
1. Press the HOME key.
2. Select Settings > General > Units > Compass > Magnetic North.
3. With a Chart View displayed on-screen, navigate the boat in a straight line,
in calm, open water at 4.5 mph. Compare the Heading digital readout on the
screen with the Course (COG) digital readout. The readouts should be within
approximately 5° of each other.
Adjust: To adjust the zero point of the GPS Heading Sensor, select Settings >
Network NMEA 0183 > Data Offsets. Select Heading Adjustment. Tap the on/
off button, or press the ENTER key, to turn it on. Press and hold the slider, or
press and hold the ENTER key, to adjust the setting.
If the procedure failed: If the Heading digital readout is significantly different
than the COG, the GPS Heading Sensor might be installed in a location with
too much magnetic interference. Check the installation location and possible
magnetic disturbances in the area.