I am getting a pretty darn bad jitter, looks like a signal pulse in my Gimbal making it almost better not to use it.
It was my last flight, Im not sure if its actually getting an actual signal thats telling it to do that or not but I know its not the Gimbal itself as with my "other product" its not happening (same craft/gimbal)
I am not using power from the APM, I have a separate source as Randy and the Docs suggested.
Is there a way to tell if a signal is causing this jitter?
Also, when its level on my table doing nothing I can see it "jitter" a click about every second.
Replies
If you have the 3dr 915Mhz telemetry radio connected to your APM - unplug it and see if the jitter goes away. I found this radio caused jitter. I had to add small capacitors to the servos I was using to correct the problem. I did find that some servos were not affected by this problem.
An Interference test:
Wrap your on craft radios, not the antenna, in plastic wrap to protect from a short. Then, wrap them in a layer or two of household aluminum foil. If the jitter stops you found your interference. It worked in my case. My telemetry radio interfered with the APM.
I am assuming you are using servo's on the gimbal (as opposed to brushless) and there is currently a discussion on the dev site about load on the APM under some situations.
Are you running simple mode?
do you have Mount enabled ?
How much logging have you turned on?
Try unloading the processor as much as possible by turning as much off as you can and see if it persists.
If you have one that does and one that doesn't (assuming identical servos) look closely at all the APM settings to see what is different. Don't forget to compare the level of logging as well.
What gimbal what board? Brush-less? Servo?