Telebee Gyro 701 / 703

In your transmitter, zero out any sub trim, tail rotor compensation, or any other tail rotor mixes. Check to see that the tail rotor pitch does not change in any flight mode, unless a tail rotor command is given. Do this by moving the cyclic and collective throughout their range, being careful not to move the rudder stick to the side. Turn the radio off.

Switch on the transmitter then the receiver. Be careful not to move the model. Watch the rudder servo. After a few seconds it will twitch. That means the gyro has initialized. Now move the rudder stick to one side and let go. If the arm returns to center and stops, you are in normal mode. If it drifts slowly to the other end of its range, or stays put, it's in heading hold. If it's not in heading hold, put it in heading hold mode using the gear switch. If it drifts away from where you put it, use sub trim (or trim tabs, if you don't have sub trim) to stop the drift. When you're finished, the rudder servo should stay pretty much where you put it. In higher end radios that have trim rates, you should be able to get it very still.

Now check to make sure the gyro is operating in the right direction. On the bench, move the model so the nose swings to the left. The control rod should move forward, toward the front of the model. Once again this is assuming a clockwise rotation of the main rotors while looking at it from above. If not, switch the "reverse" switch on the gyro sensor.

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