Calibrate The Internal Sensor - TracVision M9 Installation Manual

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Calibrate the Internal Sensor

The antenna's internal compass sensor is
calibrated at the factory for a perfect-world
environment. However, hard and soft iron effects
on your vessel can distort the magnetic field
around the antenna, causing errors in the
sensor's reported heading. To compensate for
these magnetic distortions, follow these steps to
calibrate the internal sensor.
Turn On Autocalibration
Follow these steps to turn on the system's
Autocalibration function. The Autocalibration
function will allow the sensor to calibrate itself
automatically.
a. Press the center MENU button on the MCU to
access the onscreen menu (see
b. At "Install Satellite?", press NEXT until the
display shows "Operations Mode?" Then
press YES.
c. At "Get Antenna Status?", press NEXT until
the display shows "Control Compass?" Then
press YES.
d. At "Set Autocal on/off?", press YES.
e. At "Autocal is: OFF", press ON.
f. At "Autocal is: ON", press RETURN.
Run the Autocalibration Function
Follow these steps to steer the vessel through a
complete circle to ensure the Autocalibration
function effectively calibrates the sensor.
NOTE: If the antenna is installed on a large vessel,
such as a tanker or cargo ship, you may omit this step.
Simply leave the Autocalibration function set to ON.
a. Select a calm day and navigate the vessel to a
clear area. Excessive pitching and rolling can
distort calibration data.
b. Apply power to the TracVision system.
c. Just before you begin, note the vessel's
heading.
Figure 29 Turning On Autocalibration at the MCU
Yes
Yes
Yes
Figure 29).
Yes
Yes
On
T r a c k i n g S a t e l l i t e A
S a t B M e n u S a t C
Install Satellite?
Next Return
Select NEXT until
"Operations Mode?"
is displayed.
Operations Mode?
Next Return
Get Antenna Status?
Next Return
Select NEXT until
"Control Compass?"
is displayed.
Control Compass?
Next Return
Set Autocal On/Off?
Next Return
Autocal is: On
Return Off
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