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36
XP652 MANUAL Airplane
CHAPTER 6
:
FUNCTIONS
•
Airplane
continued
Programmable exponential adjustments are offered
on the aileron and elevator channels of your XP652
system. Exponential is a function that allows you to
tailor the response rate of the controls as compared
to the stick inputs. The purpose of exponential is to
reduce the sensitivity in the middle portion of stick
movement, while still allowing full travel at the end of
the stick movement. In other words, the end result
(travel) remains the same, although exponential
changes the rate at which it achieves this travel.
The adjustable range of the Exponential Function is
from 0–100%. Zero percent (0%) is linear stick control
which means that the response rate is equal
throughout the stick control. One hundred percent
(100%) is full exponential. The larger the exponential
value, the less servo action, or sensitivity, you will
notice around the neutral setting.
Note:
The Exponential Function operates in
conjunction with the Dual Rate Function. It is
imperative to understand the Dual Rate Function prior
to adjusting the exponential values.
Exponential may be selected independently for either
the high or low rate (position 0 or 1), or both.
EXPONENTIAL
•
Function Mode
7.3
Accessing the Exponential Function
1. Turn on the transmitter.
2. Press the MODE and CHANNEL buttons
simultaneously to enter the Function Mode.
3. Press the MODE button until EXP appears at the
left side of the screen.
4. Press the CHANNEL button until the desired
channel appears on the screen (AI or EL).
5. Using the appropriate dual rate switch, select the
correct position to be adjusted (0 or 1).
6. Press the + or - buttons to increase/decrease the
exponential value.
7. Press the MODE button to access the sub-trim
Function.
8. To exit, press the MODE and CHANNEL buttons
simultaneously.
MODE
ENTER
CHANNEL
SWITCH POSITION
AI = AILERON
EL = ELEVATOR
EXPONENTIAL VALUE
0
%
AIO
Press the + and - buttons to
increase/decrease the
exponential valve (0 - 100%)
Press the MODE
button until EXP
appears on the left
side of the screen
Note: The dual rate switch position is
changed/accessed by setting the appropriate
dual rate switch to the 0 or 1 positions.
Press the CHANNEL
button to select either
aileron or elevator
exponential
INCREASE
CLEAR
EXP
+
–
DECREASE
A GOOD STARTING
POINT FOR
EXPONENTIAL VALUE
IS APPROXIMATELY
20% – 30%.