ok next question is about servos buzzing
 

ok i got a ultra stick with
jr ns servos but they all make a buzzing sound ounce i turn on transmitter?

And i have double checked there is no binding and they are not digital servos?

What do you turn on first, the Transmitter, or the receiver ? The transmitter should be turned on first, and off, last.

Next, disconnect the linkages from all buzzing servos. If the buzzing stops, the problem lies in your linkage set up.

I agree with tom disconnect the linkage and see if the buzzing stops

Ok I am still new to this. I will try that when I get home. And it seems like every servo is doing it not just one. .

ok next question if they still buzz after I disco linkages ?

If what you have (you did not post the servo brand and model at least in this thread) are truly analog servos And they make a buzzing noise ar idle after you have completely disconnected the linkage by removing the output arm then you have something else going on, That is far from normal. What is very very common is to much drag in the linkage.

John

It seems that some older Transmitters AM and FM make the servos "nervouse" when the transmitter is close to the plane, if your radio is of an older generation, try moving it 10 or more feet away to see if this helps.

Calvi

The transmitter swamping issue will cause twitching, not buzzing.

You can get buzzing even from a linkage that is not straight. It may not be binding at all, but if it is making a twisting force on the servo arm you'll get a buzz. A quality analog servo hardly ever buzzes unless there is some strain on it. Digital ones are always making noise however.

Analog servos may buzz with some radios if the frame rate is too high. For instance, some radios allow the user to select a frame rate that is 22 mS long or 11 mS long. If the shorter period is selected, the pulse stretching circuit does not have time to completely discharge, and so the servo will just hum and buzz. The faster frame rate works great with Digital servos, but not with analog.

It would be more useful if all the information is provided, as to radio type and servo type as well as type and voltage of the airborne pack, because that too can cause problems with some servos.

Of course the suggestions to check the freedom of the linkages is valid too. But if all the servos buzz, then I would look in another area.

ok high planins i use a 2000 mah 6volt pack

a futaba 8fgh super radio 2.4

and the servos are jr nes 537 servos

OK, your Futaba radio has a High Speed (HS) mode that it can operate at for channels 1 through 6. Check the set-up of the programming which is done at the receiver. How to do it is on page 26 of the manual. You do not want it in the HS mode with analog servos.

Also what type of battery pack are you using? By this, I mean which chemistry.

nimh battery