[d_wheel]

In my experience, the difference lies with the servos and not the receiver. The receiver does not output a pulse at all when turned on, but waits until it connects with the transmitter. I always get a movement with analog servos, both Futaba and other brands, but never see it with digitals of any brand. I have also experienced this with XPS and Spektrum/JR. With Futaba and XPS the servos will stay off center until the receiver and transmitter make connection. With Spektrum/JR, you might not notice it as much because the receiver starts sending the bound servo positions as soon as it boots up. If the servo moves quite a bit when first turned on, you will see it jump and then almost immediately go back to the bound position. With retracts it can be just enough movement to unlock the mechanism and let the aircraft fall.


To avoid this, use all digital servos.

Later;

D.W.