KVH Industries KVHTRACVISION G4, Technical Manual

Page: 80 / 164

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
54-0147
69
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.
Proceed to Section 3.5,
"Set Configuration Mode"
Setup data outputs?
Yes Next Return
ALERT SCREENS
Set sine-cos levels?
Yes Next Return
Proceed to "Setting the
Serial Outputs"
Set Ref: 2.50 V
- Enter +
Set Swing: +/- 1.67 V
- Enter +
Sine Cosine is: Mag
Mag ENTER True
Setting will blink "Mag" or
"True" based on the
current selection. Pushing
the MAG or TRUE buttons
will toggle between
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:
only True available
Only Mag available