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  • kvmkvarma@gmail.com February 27, 2017 at 10:16pm

    hi,

    i'm working on APM2.8,but i felt it difficult while doing compass calibration using USB. So, I bought a telemetry radio but the air radio isn't blinking when socketed to APM.Just to check whether the radio is working or not I tried it on the GPS port and then it started to blink.

    so,what should it be,

    is the APM faulty or should i powerup the APM directly

    Pls help me out

  • Liakopoulos Vasilis November 28, 2014 at 3:22am

    Hello everybody,

    i have similar issues like i read in this thread.

    I have both firmware in radios, the status led is solid green, i power up the ardupilot 2.6 with power module, i select the correct baud rate and com port (57600) but i cannot connecting via mission planner. Some times and i mean "some"  connected but  the communication is lost after few seconds. here is the print screen of misssion planner..

    printscreen.bmp

    • Liakopoulos Vasilis > Liakopoulos Vasilis November 30, 2014 at 7:24am
      i check again the wire it seems ok. also check it to connect the apm direct with 5 volt battery with and without jumper but i take the same results..
    • Liakopoulos Vasilis > Liakopoulos Vasilis November 28, 2014 at 3:52am
      the air radio is connecting on the ap2,6 with cable that it comes from 3dr. it needs extra power via usb port?
    • Marcin Krawczyk > Liakopoulos Vasilis November 28, 2014 at 3:27am

      Are you sure you have proper electrical connection between APM and AIR radio?

      • Hasan Fayyaz > Marcin Krawczyk November 28, 2014 at 3:46am

        the problem was in the wire connecting the apm with the radio, i figured that our and now its working ok.... thanks for your useful suggestions and help

  • Steve Hurley November 23, 2014 at 7:01am
    Did you select the right port and port speed? 56000
    That's all I ever see issues with.
    • Marcin Krawczyk > Steve Hurley November 23, 2014 at 9:36am

      Have you EVER connect to AIR module from "electrical" side? Maybe there's problem in electrical connection between modem and APM?

      • Stone1295 > Marcin Krawczyk November 25, 2014 at 11:02am

        Why do the downgrade to 1.7 instead of upgrading to 1.9?

        -Mike

        • David Boulanger > Stone1295 November 25, 2014 at 3:52pm

          The baud rate needs to be 57000.  Screen shots show 115000

          Regards,

          David R. Boulanger

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