FUTABA 8UHPS Instruction Manual page 34

Exponential settings may be used to change the response curve of the servos to make
flying more pleasant. You can make the servo movement less or more sensitive around
neutral for aileron, elevator, throttle, and rudder. It can also be set for each side of the dual
rate switches. Negative exponential (–) makes the servo movement around the stick neutral
less sensitive and positive (+) makes the servo movement more sensitive.
For throttle, exponential is applied from the end of travel rather than for neutral like the
other controls. When the "–" side is increased, the idle sensitivity decreases and the high
t hrottle sensitivity increases. This is best understood by experimenting with a servo.
Setting Exponential Values
AI = Aileron,
Channel display:
EL =Elevator,
TH = Throttle,
RU = Rudder
(The value of the stick adjusted
by stick operation blinks.)
Range: -100% to +100%.
Initial value=0%
Indicates top or bottom D/R
switch position (bottom shown)
1. Aileron EXP adjustment: place the
aileron D/R switch and stick in the
direction you want to adjust and set
the EXP value with the (+)/(-) keys.
2. Elevator: place the EL D/R switch
and stick in the desired direction
and adjust EXP with the (+)/(-) keys.
3. Repeat above procedure with
Throttle and Rudder.
• If you're unhappy with your set
value, you may reset to 0% by
pressing the (+) and (-) keys
simultaneously.
31
These keys are used to
To F/S
move through the items
function
in this menu.
To D/R function
Data input keys
*The blinking item is what is
being set.