Instruction Manual
49
SUB-TRIM
: makes small changes or corrections to the neutral position of each servo. Range is -120 to +120, with 0 setting, 
the default, being no 
SUB-TRIM
.
We recommend that you center the digital trims before making 
SUB-TRIM
changes, and that you try to keep all of the 
SUB-TRIM
 values as small as 
possible. Larger 
SUB-TRIM
 values affect the servo's range of travel is restricted 
on one side. 
The recommended procedure is as follows: 
• measure and record the desired surface position; 
• zero out both the trims (
TRIM RESET
 menu) and the 
SUB-TRIMs
(this menu); 
• mount servo arms and linkages so that the control surface’s neutral is as correct as possible; and 
• use a small amount of 
SUB-TRIM
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GOAL of EXAMPLE: STEPS: INPUTS:
Adjust the flap servo's 
SUB-TRIM
 until 
its center exactly matches the aileron 
servo's center, as they work together as 
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Open
BASIC
menu, then open 
SUB-TRIM
.
for 1 second.
 (If 
ADVANCE
, again.)
C
to
SUB-TRIM
.
Choose the channel to adjust, and adjust 
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C
to
FLAP
as needed.
C
to each channel, 
Repeat for other channels.
as needed.
Close.
Where next? Adjust trim steps: see p. 48.
Adjust
END POINTs
: see p. 39.
6HWXSGXDOWULSOHUDWHVDQGH[SRQHQWLDO
D/R
,
EXP
): see p. 42.
The servo submenu includes two features: 
• real-time bar-graph display to demonstrate exactly what commands the 
transmitter is sending to the servos. (This can be particularly handy in setting 
up models with complicated mixing functions, because the results of each 
stick, lever, knob, switch input and delay circuit may be immediately seen.) 
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(channels 1-8)
GOAL of EXAMPLE: STEPS: INPUTS:
View the result of reassigning channel 
6 from VR(A) knob to three-position 
SWITCH C.
Cycle the channel 6 servo.
Complete desired programming 
function. (Ex: in 
AUX-CH
, move ch. 6 to 
SWITCH C)
See
AUX-CH
 for details. (p. 39.)
Open the 
SERVO
 function.
for 1 second.
 (If 
ADVANCE
, again.)
C
to
SERVO
.
Move each control to see the operation. 
(Ex: SWITCH C in all positions)
C to center position.
Note change in position of ch. 6 servo.
Prepare all servos to be cycled and cycle.
Plug in servos. POWER ON.
End cycling and close.
Where next? 6HWXSGXDOWULSOHUDWHVDQGH[SRQHQWLDO
D/R
,
EXP
): see p. 42.
Set up desired programmable mixes: see p. 61.
Set up dual aileron servos: see p. 51.
Set up dual elevator servos: see p. 57.
SERVO
display and cycle submenu: displays radio's output to channels 1-10. 










