Radio Cali issue

I tried to calibrate radio, but there’s a issue that green bars pops up arbitrarily.

For example, I didn’t touch anything on controller, but pitch value on Mission Planner moved 1700 and went back to 1500 immediately (neutral value).

Also, when I moved throttle lever, other unrelated values were changed too.

I tried to test after removed my wireless mouse and other wireless equipment that may affect on receiver but problem not solved

So, there are two categories of problem.

#1: value changes without input.

#2: unrelated value changes together.

I had this problem on a cheap reciever. Turned out to he a bad bind, after 3 of 4 tries i got a good bind between rx and tx