Futaba 8UHFS, 8UHPS - Manual (Page 31)

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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 throttle sensitivity increases. This is best understood by experimenting
with a servo.
Setting Exponential Values
Channel display:
To IDL-DN
function
To D/R function
Range: -100% to +100%.
Initial value=0%
Data input keys
These keys are used to
move through the items
in this menu.
1. Aileron EXP adjustment: place the
aileron D/R switch and stick in the
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.
Indicates top or bottom D/R
switch position (bottom shown) AI = Aileron,
EL =Elevator,
TH = Throttle,
RU = Rudder
*The blinking item is what is
being set.
(The value of the stick adjusted
by stick operation blinks.)
direction you want to adjust and set