在MANUAL模式下，不需要设置遥控器的混控，APM会帮你完成这个功能，原文如下：
MANUAL
Regular RC control, no stabilization. All RC inputs are passed through to the outputs. The only ways in which the RC output may be different from inputs are as follows:
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if the VTAIL_OUTPUT option is enabled, then a software VTAIL mixer is applied on the output
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