The motor test was refused: the radio is not calibrated
What ArduPilot says:
- …: RC not calibrated
A motor test that takes its throttle as a percentage or from the stick (and Turtle mode) first runs the radio calibration checks used for arming: roll, pitch, throttle and yaw must each have a calibrated minimum of 1300 µs or lower and a maximum of 1700 µs or higher, with the trim between them. One failed, and a “PreArm:” line sent just before this one says which. A test given as a raw PWM value skips this check.
What to do, most likely first
The radio calibration has not been done yet.
Check
RC1_MINtoRC4_MAXstill hold their defaults, 1100 and 1900.FixCalibrate the radio, moving every stick to both ends, then run the motor test again (props off).
The parameters were reset, or loaded from another aircraft, and the calibration went with them.
FixCalibrate the radio again on this aircraft.
Parameters to look at
| Parameter | What it is |
|---|---|
RC1_MIN | RC min PWM |
RC1_MAX | RC max PWM |
RC3_MIN | RC min PWM |
RC3_MAX | RC max PWM |
Where to do it:Setup & Tuning GuideSetup & Tuning Guide
The code that sends it
…: RC not calibrated
ArduCopter/motor_test.cpp Copter::mavlink_motor_control_check() · Open in ArduPilot Copter-4.7.1