Horizon Hobby JR DSM 12X, Instruction And Programming Manual

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The 12X features a Gyro Gain system that allows in-flight
selection of 3 gyro gain settings for up to two separate gyros
or up to five gyro gain settings assigned to flight modes. The
system provides for fixed gain values and has settings for
normal or tail lock gyros. Gyro gains can be assigned and
selected via a three-position switch or with Flight Modes.
Note : If one set of gains for a gyro is set to 0%, (in
normal gain mode)then the gyro can be switched off
during flight.
Note : In order for the GYRO System to appear in the
FUNC.LIST, the AUX2 and/or the AUX3 channels must be
set to GYRO in the Devic.SEL screen.
Note : This function is designed to be used only with gyros
that have in-flight proportional gain adjustment capability.
Single and dual rate gyros that use a potentiometer to
adjust the gain will not work with this function.
44: Gyro Sensor
Plug the gain connector of one gyro into the AUX2 port of the
receiver. Plug the gain connector of another gyro (if used) into
the AUX3 of the receiver. If only one gyro is to be used, connect
its gain to either AUX2 or AUX3.
1. Highlight and select GYRO SENS. in the FUNC.LIST.
2. Highlight MANUAL then decide which switch to use to
control gyro gain. Highlight and select AILE D/R, ELEV D/R,
FLAP SW, AUX@ or AUTO (for flight mode).
3. Two types of gyro adjustments are provided, Normal and
Tail Lock. Highlight and select the desired type of gyro
that will be used. If heading lock is selected, note that a T
or N is available for each gain setting. If T is selected, all
values will result in the gyro being in tail lock mode. If N is
selected, all values for that gain will be in normal mode.
Note : For most airplane applications normal mode is
recommended. Also note the Time Lag is available in Tail
lock mode. Time lag is available when switching from tail
lock to normal mode to prevent the servo attached to the
gyro from jumping abruptly when switching from tail lock
to normal mode.
4. Each gyro has 3 available gain settings (or up to five if extra
flight modes are selected). They are labeled Pos0, Pos1,
Pos2, Pos3 and Pos4 with a percentage next to each. They
correspond to the positions of a 3-position switch where
0 represents the switch being in the upper position; 1
represents the middle position; and 2 represents the lower
position.
5. Use the Selector to highlight and select the number 0
position for each gyro and set the percentage to the desired
gain value.
6. Select the number 1 gain for each gyro and set it to the
desired value.
7. Select the remaining gain values.
Gyro Connections
Note : The Devic.SEL function must be programmed to
GYR, GEAR, AUX2 and/or AUX3.
Gyro Gain
To Access the Gyro Sensor