End Point Of Servo Travel Adjustment (End Point, Also Called Epa) - RadioLink AT9 Instruction Manual

As shown below, home screen will display plane type and throttle pitch:
ILLUST: displays the illustration of helicopter in the home screen. (Default)
THR/PIT: displays the current throttle and pitch position in the home screen.
Step to change plane type image to thr/pit: under model type helicopter, enter basic menu, choose
MODEL TYPE, and enter HOME DISP, press PUSH, then DIAL to THR/PIT, then press PUSH.

2.3.3 End Point of servo travel adjustment (END POINT, also called EPA)

The most flexible version of travel adjustment is available. It independently adjusts each end of each
individual servo's travel, rather than one setting for the servo affecting both directions. Again, for CCPM
helicopters, be sure to see SWASH AFR prior to adjusting end points.
djustability:
A
• Can set each direction independently.
• Ranges from 0% (no servo movement at all) to 140%. At a 100% setting, the
Throw of the servo is approximately 40°for channels 1-4 and approximately 55°for channels 5-8.
• Reducing the percentage settings reduces the total servo throw in that direction.
Examples:
• Adjust the throttle high end to avoid binding at the carburetor, and low end to allow for proper carburetor
closure.
• END POINT may be adjusted to 0 to keep a servo from moving one direction, such as flaps not intended to
also operate as spoilers.
• Retract servos are not proportional. Changing END POINT will not adjust the servo.
END POINT adjusts only the individual servo. It will have no effect on any other servo that is operated in
conjunction with this servo via mix or preset programming such as FLAPERON, AILEVATOR, etc. This is so
that each individual servo can be carefully fine-turn to avoid binding and other conflicts. To adjust the total
travel of a function such as FLAPERON, make the adjustments in that function's controls. For CCPM
helicopters, adjust the total travel of the function, such as collective pitch, in SWASH AFR. Adjust the linkage
or the END POINT? It is nearly always best to adjust your linkages to get as close as possible prior to utilizing
END POINT. The higher the END POINT setting, the better position accuracy and the more servo power
available at nearly any position (except if using digital servos). Higher END POINT values also mean longer
travel time to reach the desired position, as you are utilizing more of the servo's total travel. (For example,
using 50% END POINT would give you only half the steps of servo travel, meaning every click of trim has
twice the effect and the servo gets there in half the time). end point (and moving the linkage) = torque,
accuracy, but transit time to get there.
• END POINT (instead of adjusting linkages) = travel time, but torque, accuracy.
Engine idle management: IDLE-DOWN and THR-CUT: functions which work with the digital THROTTLE
TRIM to provide a simple, consistent means of engine operation. No more fussing with getting trim in just the
right spot for landings or take offs! For additional engine adjustments, see THROTTLE-NEEDLE and
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