@wcfung1 wrote:
My Pixhawk -equipped quad has a PPM receiver which was binded at -135% throttle. After binding, the throttle was set back to 100%. The PWM was shown to be 915 at the radio calibration page, which was below the 975 PWM necessary to activate RTL. "Enable always RTL" is also selected under the "RADIO" box in "Failsafe" page. I then redo Radio Calibration.
To test RTL activation, 2 scenarios happened : --
1st scenario
After powering up Pixhawk on the bench using USB, I then arm the motors in Stabilize mode, with GPS 3D fix, then increase the throttle above minimum, then switch off the Tx, RTL is activated at this point. I then repeat this procedure for 3-4 times and everytime it works.2nd scenario
After 10-15 minutes, without changing any setting, I repeated the above procedure, RTL was not activated, instead, "Land" mode was activated after switching off Tx and shortly followed by motor disarm. Same Stabilize mode, GPS 3D fix, motor armed and then followed by increase throttle above minimum, but with different result.Appreciate any help.
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