Function mode AIRPLANE
19
Function mode AIRPLANE
Dual Rates and Exponential; Servo Reversing
Dual Rates and Exponential
D/R POSITION
Channel
AILE: AILERON
ELEV: ELEVATOR
RUDD: RUDDER
Exponential Value
Dual Rate Value
Go to Reversing
SW menu
Go to Servo
Travel Screen
Select channel
EXP or D/R
Change channel
or value
Clear
(Lin or 100%)
Dual rates are available for the aileron, elevator and
rudder channels of yor R/C aircraft. The combined Dual
Rate Function is discussed at page XX. Dual rates may
be defined as the ability to vary the travel or throw rate
of a servo from a switch. Due to the differing travel ra-
tes, you will find that the sensitivity of the control either
increases or decreases accordingly. A higher rate, or
travel, yields a higher overall sensitivity. You may find it
easier to think of the Dual-Rate function as double-rates
or half-rates.
The amount of travel is adjustable from 0-125% in 1%
increments. The factory setting, or default value, for
both the 0 and 1 switch positions is 100%.
Exponential reduces the sensitivity in the middle portion
of stick movement, while still allowing full travel at the
end of the stick movement. The end result (travel)
remains the same, although exponential changes the
rate at which it achieves this travel. The adjustable
range is from 0-100%. Zero percent (0%) is linear stick
control, meaning the response rate is equal throughout
the stick control. 100% is full exponential. The larger the
exponential value, the less servo action or sensitivity
you will notice around the neutral setting.
Either switch position may be selected as the low or
high rate by placing the switch in the desired position
and adjusting the value accordingly.
Accessing the Dual-Rate and Exponential Function
1. Place the transmitter power switchin the ON positi-
on.
2. Access the Function mode by pressing the
Down
and
Select
keys simultaneously.
3. Press either the
Up
or
Down
key until
D/R EXP
appears in the upper left corner of the LCD.
4. Press the (+) ir (-) key until the desired channel
(aileron, elevator or rudder) appears.
5. Select the switch position for which you want to
adjust the rate. The number to the upper right of
the current rate value on the display indicates the
current position of the Dual-Rate switch for the
channel that you have selected. Either a 0 or a 1 will
be shown, corresponding to the position of the
switch. To select the opposite switch positio, move
the appropriate Dual Rate switch to the opposite
position. The number that appears above the current
rate value reflects the change.
6. Adjust the rate for the channel and the switch positi-
on just selected. To decrease the throw rate, move
the cursor to the D/R position using the
Select
key,
then press the (-) key. To increase the throw rate,
press the (+) key. As stated previously, the adjustab-
le rate is from 0-125% for each switch position and
channel.
7. Press the
Up
arrow key to access the
REVERSING
SW
menu.
8. Press the
Down
arrow key to access the
SERVO
TRAVEL SCREEN.
9. Press the
Down
arrow and
Select
keys simultane-
ously to exit the
DUAL RATE AND EXPONENTIAL
mode.
Servo Reversing
Channel being programmed
THR 1: THROTTLE
AIL
2: AILERON
ELE 3: ELEVATOR
RUD 4: RUDDER
GEA 5: GEAR
FLA 6: FLAP
The Reverse Switch function is an electronic means of
reversing the throw of a given channel (servo). All six
channels of the mx-12 offer reversible servo direction.
This will ease setup during the servo installation into
your aircraft.
Go to Sub Trim menu
Go to D/R & Exp menu
Select channel to reverse
Change servo direction
(N
R)
Reset direction to
normal (Adjust to N)
Accessing the Travel Adjust Function
1. Place the transmitter power switch in the ON positi-
on.
2. Access the Function mode by pressing the
Down
and
Select
keys simultaneously.
