RadioLink AT9S Pro Instruction Manual page 25

• The glider programming offers you the choice of
Condition. This option allows you to have a separate
rate for each of condition. (GLID)
• Stick position (ACRO GLID). (Ex: On rudder you
normally use only the center 3/4 of the stick movement
except for extreme maneuvers such as
snaps/spins/stalls. As long as your RUDDER STICK
does not exceed 90% (ie. stall turn), the rudder goes
to high rate's 90%, which is a MUCH higher amount of
travel than your low rate at 89%)
Adjustability:
• Range: 0 - 140% (0 setting would deactivate the control
completely.) Initial value=100%
• Adjustable for each direction (ACRO/ GLID)
(i.e. Up/down, left/right) (Ex: Most models fly upright
without any elevator trim, but require some down
elevator when inverted just to maintain level flight. By
increasing the down travel by the amount required to hold the model inverted, the model now has equal travel
available from level upright or level inverted.
Only if any stick is chosen by the item of "SW1", a switch can also be chosen by the item of "SW2." When
operated simultaneously, the switch operation has priority over the stick operation. (ACRO)
Exponential:
Change the response curve of the servos relative to the stick position to make fly more pleasant. You can
make the servo movement less or more sensitive around neutral for rudder, aileron, elevator, and throttle
(except HELI type use THROTTLE CURVE instead). (ACRO type throttle EXP and THROTTLE CURVE can
not be activated simultaneously). Many models require a large amount of travel to perform their best tricks.
However, without exponential, they are touchy around neutral, making them unpleasant to fly and making
small corrections very difficult. Additionally, by setting different exponentials for each rate, you can make the
effectiveness of small corrections similar in each rate, as in our example below:
The best way to understand exponential is to try it:
• Having made no changes yet in the D/R, EXP screen, move SWITCH D to DOWN (toward the AILERON
STICK).
• Move SWITCH D up. Hold the AILERON STICK at 1/4 sticks and moves SWITCH D down.
• Notice how much less travel there is.
• Go to 3/4 stick and repeat. Notice how the travel is much closer, if not identical.
Adjustability:
• More sensitive around neutral. (Positive exponential)
• Less sensitive around neutral. (Negative exponential)
• Adjustable for each direction. (ACRO/GLID)
For throttle, exponential is applied at the low end to help nitro and gasoline engines have a linear throttle
response, so that each 1/4 stick increases engine RPM 25% of the available range. (In most engines this
ranges from 5-60%)
Special note for helicopters: Helicopter model types have just a single rate for each switch position rather
than a rate for each side of the servo's travel per switch position. Additionally, setting the D/R, EXP for each
switch position requires cursor back to the No. setting and changing the switch position here. Just flipping the
switch does not affect the screen setting, allowing dual rates to be assigned with idle-up and other features on
certain switches, and does not require putting the model in that condition to make modifications.
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