Advanced Tuning - Horizon Hobby Spektrum AR637T Manual

Advanced Tuning

Basic gain tuning can be as simple as using a slider, but to fi ne tune the AS3X
system there are many setup and tuning options.
AS3X Gain tuning options
1.
In your transmitter's menu select
Forward Programming -> Gyro Settings -> AS3X Settings
• AS3X Gains can be changed for each axis, you can increase the gain values
for roll, pitch and yaw separately to maximize the performance without
oscillation. We recommend making small changes on one axis at a time.
• Priority tells the receiver how much to reduce gain when you move the
control stick away from center. If the Priority is set high (200) the receiver
will lower gain to zero with any movement on the control stick. Low
priority values will dampen more throughout the control input range. The
default value of 160 provides a well balanced feel for most pilots.
• If your aircraft is over or under sensitive to the range of gain available,
adjust the Gain Sensitivity. Agile aircraft with extreme control surface
defl ections or high speed aircraft should use 1X. Moderate sport airplanes
should use 2X. Slow and inherently stable aircraft with mild performance
should use 4X.
2.
Test fl y your airplane to verify the confi guration, land, and make adjustments
as necessary.
Flight Mode tuning options within Forward Programming
(in the receiver)
1.
Flight Modes in Forward Programming are set up in the receiver and are
separate from Flight Modes set up outside of Forward Programming. You can set
base gain values, and enable or inhibit AS3X and SAFE for each Flight Mode.
Select Forward Programming -> Gyro Settings -> F-Mode Setup
1. Select FM Channel, assign a channel and switch to use for Flight Modes.
Select any channel that is not a control surface, throttle or gain.
TIP: If you have completed the First Time SAFE Setup, your Flight Modes will
already be assigned to a switch.
2. Each Flight Mode within Forward Programming can have AS3X and SAFE
enabled or disabled. For all fl ight modes with SAFE enabled, AS3X should
be enabled as well. Take into account your fl ight mode switch position,
then set the AS3X and SAFE Modes as desired for that switch position.
TIP: If you have not completed the First Time SAFE Setup, you will not see any
SAFE related options on the F-Mode Setup Screens.
3. SAFE Flight Modes have an AS3X gain and a SAFE gain for pitch and roll axis.
Both of these values are used for SAFE and may be tuned independently.
4. Enable the Panic function if you want to be able to trigger Panic (bailout)
from that fl ight mode. This setting only defi nes if Panic is accessible from
the selected Flight Mode. Complete Panic Mode Setup under
Forward Programming -> System Setup -> SAFE/Panic Mode Setup
5. For Modes with SAFE self leveling/angle demand, you can choose to
enable High Thr to Pitch and/or Low Thr to Pitch or not.
6. Move the Flight Mode switch to the other positions; a setup screen will
appear for each mode. If Panic is not enabled on a selected mode, you
will not be able to trigger Panic when you are in that Flight Mode. Set the
SAFE Mode and Angle Limits as desired for every mode.
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