if i turn the sreering slowlly its ok but fast the reciever shuts off and it cycles the servo on and off. battery charged. rs pro lights stay on and my transponder ligh stays on. motor stops at same time

You need to add a glitch buster style cap or run an external bec

The servo is loading up your internal bec and causing the receiver to brownout (lose connectivity)

Common problem

Cheers

Just curious, but what servo do you have? Model number.

buy this plug it in to a open spot in your rx and your done

http://spektrumrc.com/Products/Defau...ProdID=SPM1600

got it did it done. thanks