TruTrak Digiflight II Operating Manual - Manual (Page 14)

13
To configure the pitch portion
of the autopilot push and hold
the ALT button for 3 seconds.
The first setup screen allows the
pitch axis to be turned on or off.
(NOT USED IN DII) The
default of on will always be
selected after a power cycle.
To turn the pitch axis off,
select off, and click the knob to
exit. To advance to the next
setup screen, press and release
the ALT button, the next setup
screen is shown below:
Turn the encoder knob to
set the activity level to the
desired value for the particular
aircraft. Any value between 0
and 24 may be chosen. In this
example, the value of 3 will be
selected.
Once activity is set to the
desired value, press and release
the ALT button to advance to
the next setup screen:
In a manner similar to
activity, use the encoder knob to
select the desired value of pitch
servo torque. This value should
be between 7 and 12. A default
value is set at the factory but
may need to be modified to suit
a particular aircraft. The value
chosen should be sufficient to
fly the aircraft, but not so much
that it is difficult to override the
autopilot if necessary.
Having selected the desired
torque level, again press and
release the ALT button to
advance to the next setup
screen. The next screen will
show:
Use the encoder knob to
select the minimum airspeed at
which the autopilot will fly the
aircraft. This speed should be a
safe margin above a stall. Press
the ALT button to advance to
the next setup screen. The next
screen will show:
The maximum
airspeed value is the fastest
indicated airspeed the autopilot
will fly, independent of what it
is commanded to do. Rotate the
knob to adjust this airspeed to a
value safely below the red line
airspeed, but above the normal
cruise speed. Select the desired
value, and then press the ALT
button to advance to the next
setup screen.