Here is a new case:
A friend is flying my own design ultimate with 70" wingspan and a DA 50cc.
The engines is great, the radio equipent is located away of the ignition and engine components. During the first flight we noticed that when any stick is moved in the Tx the response will delay as long as 1 second or more when the engine was running. The first flight becomes a nightmare...you will imagine..
But once on the ground we checked the radio and everything was OK. We went up to 6 volts. and the problems persist...

So there is no a problem of power from the servos, ( 2.400 Mha) , is a interference problem that occurs when the engine is running. The notorious thing here is that there are no glitches or strange movements, only a loooong delay in the rx to do what you mean with the Tx.

So much, that finally you moved the sticks and the servos almost do not move, but once the engine was switched off, the movements becomes as natural as ever.


After 2 days of inspection I passed by the workshop of my friend and discover he used a loooong wire from the servo to the throttle, thinking that the little plastic link at the end will seal the interference.

is this so???
I don`t think so, so now we are changin to a complete plastic pushrod. besides that there is no other thing that could affect the reception in the plane, there are no pull pull, no long wires along the fuselage, no wing wires, etc.

The strange thing is that I never saw that kind of behavior in a plane because of interference.

What do you think??

Tatolazo