I was a bit off on my post yesterday, Mako79's response prompted me to go back and look at what I had followed.
Assuming ALL of the software is up to date...... on the computer and (firmware) on the phantom components. If you have an older version of software on the computer, uninstall, reboot, and then install the newer version(s). If any phantom firmware needs updating then do it, and reboot everything so the new firmware is read properly on the components that were updated.
This is the sticky post that I have followed and it works well to calibrate the wheel.
Scroll wheel on the new Remote Controller
If the controller that came with your phantom has the wheel, then you do not do step 2 of the sticky as the controller is already bound to the phantom.
If you purchased a controller with a wheel to replace an older one without a wheel, you will have to bind the new controller properly to the phantom. Read the manual for how to properly do this.
Read step 3 of the sticky closely. It is easy to forget and do it wrong.
Close the Rc Assistant when done and before connecting to the phantom assistant.
Be sure to follow the rest of the sticky and do the calibration again in the phantom assistant and reboot where noted.
If you still have issues, take the time to make sure everything was done correctly and with the correct software.
*******************************
I don't recall any channels jumping around when I was in the RC Assistant without any input. So I don't know if there may be some noise on your usb setup or if there is an issue with something else. Try following the sticky (or do it again) and see if that solves the issue.
Assuming ALL of the software is up to date...... on the computer and (firmware) on the phantom components. If you have an older version of software on the computer, uninstall, reboot, and then install the newer version(s). If any phantom firmware needs updating then do it, and reboot everything so the new firmware is read properly on the components that were updated.
This is the sticky post that I have followed and it works well to calibrate the wheel.
Scroll wheel on the new Remote Controller
If the controller that came with your phantom has the wheel, then you do not do step 2 of the sticky as the controller is already bound to the phantom.
If you purchased a controller with a wheel to replace an older one without a wheel, you will have to bind the new controller properly to the phantom. Read the manual for how to properly do this.
Read step 3 of the sticky closely. It is easy to forget and do it wrong.
Close the Rc Assistant when done and before connecting to the phantom assistant.
Be sure to follow the rest of the sticky and do the calibration again in the phantom assistant and reboot where noted.
If you still have issues, take the time to make sure everything was done correctly and with the correct software.
*******************************
I don't recall any channels jumping around when I was in the RC Assistant without any input. So I don't know if there may be some noise on your usb setup or if there is an issue with something else. Try following the sticky (or do it again) and see if that solves the issue.