Problem with DX9 + CUAV pixhack v3+ ArduCopter V3.6.2 and V3.6.3

Hopefully you guys can help me figure problem out.

Spectrum DX9 CUAV pixhack v3 ArduCopter V3.6.2 and V3.6.3
Spectrum Satellite receiver,and ORANGE R920 receiver with Satellite receiver

1,when i use the ppm rc in,that’s ok,every channel is right.
2,but when i use spectrum satellite receiver,the channel is wrong,and the pwm value that from1st to 9th channel will be bouncing,one channel by one channel,
3,ORANGE R920 receiver (with sbus), unusual condition same with use spectrum satellite receiver。

and I test my radio ,without pixhawk or pixhack, direct connect the receiver and Servo,that‘s ok。
so,I feel very confused。I don‘t know why and I don’t know how revise some parameters that will be fix this mistake。
maybe still have some bug with Spectrum .
could you give me some advice that way to fix this problem?
Thanks for the help