KVH Industries KVHTRACVISION G4 Technical Manual page 80

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.
Setup data outputs?
Yes Next
ALERT SCREENS
Set sine-cos levels?
Yes Next
Sine Cosine is: Mag
Mag ENTER
Set Ref:
- Enter
Set Swing: +/- 1.67 V
- Enter
54-0147
Return
Proceed to Section 3.5,
"Set Configuration Mode"
Return
Proceed to "Setting the
Serial Outputs"
Setting will blink "Mag" or
"True" based on the
True
current selection. Pushing
the MAG or TRUE buttons
will toggle between
selections.
2.50 V
+
+
Using the ADCU Interface
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:
only True available
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:
Only Mag available
The system will then proceed to the
"Set Ref" screen.
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