Setting the Sine/Cosine Data Output
The sine/cosine setup is done in three stages: first the magnetic
or true heading option is selected, then the reference voltage is
set, and finally the swing voltage is set. The valid range for
reference and swing voltages is between 0 and 6.5 volts. The
default value for reference voltage is 2.5 volts. The default value
for swing voltage is
±1.67 volts. Refer to your autopilot manual
for correct voltage requirements.
Using the ADCU Interface
54-0161
71
If the system is NOT connected to
a GPS or a ship’s gyro, only
magnetic heading data will be
available and the following variation
on the magnetic/true selection
screen will be displayed:
The system will then proceed to the
“Set Ref” screen.
current selection. Pushing
selections.
Figure 3-11
Setting Sine/Cosine Data Output
If the GyroTrac is receiving data
from a ship’s gyro, all compass
outputs are automatically
configured as True North and
cannot be set to Magnetic. If this is
the case, the following variation on
the magnetic/true selection screen
will be displayed: