Getting desperate - Radio Calibration says "Bad channel 1 input, cancelling" - Iris+

Posted by Dale Greer on September 22, 2015 at 8:35pm

I'm still trying to find an answer to this after a couple of weeks of being down, 3DR support has been pretty slow on the uptake.

Basically, my Iris+ isn't getting commands from my radio controller, i.e. the box with the joysticks and the FrSky DJT. Mission Planner and APM think the controller isn't turned on, even though it's bound to the D4R-II receiver, and the controller is getting data like altitude, satellites, battery voltage, etc.

In both Mission Planner and APM, all the telemetry data is coming in just fine.

When I try to calibrate the radio with Mission Planner, I get no green in the UI, where it's supposed to have green bars that indicate the positions of the controls, and in the end I get this message "Bad channel 1 input, cancelling".

In APM, the error message is "Radio control is not active or turned on."

Can anyone shed some light on what needs to be replaced?

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Replies

  • Rayane Benyoucef July 17, 2017 at 6:31am

    Hey, I have the same issue please tell me how did you overcome that. Thanks



    Dale Greer said:

    Thanks for not suggesting it's not bound. It's definitely bound.

    I rechecked the wiring, and there was that one time when one of the wires came off of the the connector for the receiver, and I had to get another connector and splice things back. I could have sworn I had them all in the right places, but apparently not. I had the ground wire on the adjacent pin and had switched the Tx and Rx wires!

    Now I have them all in order, but still no workee. Now I'm not getting anything on the controller.

    Here are a couple of reference images I worked from.

    http://copter.ardupilot.com/wiki/common-frsky-telemetry/

    http://diydrones.com/forum/topics/telemetry-doesn-t-work-pixhawk-fr...

  • Steve Foster September 23, 2015 at 7:09am

    I agree with others. It could be a binding thing. Look at this 3DR page, and scroll down to the part about binding the radio.

    https://3drobotics.com/kb/troubleshooting/

  • Michael Burmeister September 23, 2015 at 4:05am

    It maybe that the radio is no longer bound to the transmitter or the receiver is not getting any power.

  • Developer
    Bill Bonney September 22, 2015 at 9:20pm
    It means that the RC Radio is not connected. Check the RC receiver is connected to the Pixhawk.
    • Dale Greer > Bill Bonney September 23, 2015 at 10:45pm

      Thanks for not suggesting it's not bound. It's definitely bound.

      I rechecked the wiring, and there was that one time when one of the wires came off of the the connector for the receiver, and I had to get another connector and splice things back. I could have sworn I had them all in the right places, but apparently not. I had the ground wire on the adjacent pin and had switched the Tx and Rx wires!

      Now I have them all in order, but still no workee. Now I'm not getting anything on the controller.

      Here are a couple of reference images I worked from.

      http://copter.ardupilot.com/wiki/common-frsky-telemetry/

      http://diydrones.com/forum/topics/telemetry-doesn-t-work-pixhawk-fr...

This reply was deleted.