TruTrak Pictorial Pilot - Manual (Page 12)

Definitions
ACTIVITY (Setting range 0 – 24) The velocity at which the servo moves the control surface. The higher the
number the more movement you will see in the control surface. With a standard servo (DSB-X,
DSP-X) you should start at 0 then work your way up in flight to set the level for your aircraft. The
High Torque Servo (DSB-HB, DSB-HC) has a different gear ratio, so an Activity setting of 12 will
be equal to about 0. With too low a setting the aircraft will hunt slowly and appear to be lazy. With
too high a setting the aircraft will hunt rapidly, and appear nervous and jittery.
TORQUE
(Setting range 0-12) The holding force that the servo has on the control surface. This setting should
not be too low; the reason is that the servo will not be able to fly the aircraft in turbulence. The
lower the setting the easier it is to override the servo if you need to. It is recommended that the
torque be set in moderate turbulence, so that one can be certain that the level is not set too low.
BAUD RATE (Setting Range 600-9600) This is the communication speed that must match your GPS serial output
setting. Most handhelds are 4800 and most panel mounts are 9600.
MICROACTIVITY
(Setting Range 0-32) This is used to remove the significant lost motion in the control system,
usually a cable control system. Most aircraft do not need this changed from 0. An example of when
one might need to adjust microactivity is: If flying in still air, there is a very slight wing rock that
can not be solved by adjusting the ACTIVITY setting.
Pictorial Pilot Settings
Engage the autopilot by pressing and releasing the lower right knob. Then press and hold the knob for approximately 5
seconds, until the first setup screen is displayed.
“1” LATERAL ACTIVITY
Rotate the lower right knob as necessary to adjust the lateral activity value to a value of 1 or 2. Press and release the lower
right knob to advance to next setup screen.
“2” LATERAL TORQUE
Rotate the lower right knob as necessary to adjust the torque value close to the maximum value of 12. Press and release the
lower right knob to advance to next setup screen.
“5” MICRO ACTIVITY
This setting should be left at zero unless advised by the factory. This setting is used to remove lost motion from the control
system. Press and release the lower right knob to advance to next setup screen.
“3” BAUD RATE
Select either 48 or 96. Where 48 is a baud rate of 4800 and 96 is a baud rate of 9600. Press and release the lower right knob to
advance to next setup screen.
“4” MAGNETIC CALIBRATION
This is the option for calibrating the internal backup magnetometer. To this question, leave the answer set to 0 (which means
“no”) at this time. This operation will be done at a later time during flight testing. Click the knob to leave the setup mode.
TruTrak Flight Systems Pictorial Pilot Installation & User Guide
December 2009 10 8300-011 Rev B