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  • Futaba 9C misbehaving

    Hi guys,

    Forgive me for writing in English, I'm suffering from tendinitis so I am using voice recognition to write this post. Feel free to reply in the region.

    I have a QAV500 that I control with a Futaba 9C modified with a spectrum module. I was just out flying when my quad suddenly dropped like a stone. From what I can tell this occurred when I used one of the switches in the upper right-hand corner of the radio to switch flight mode on the quad. This apparently caused the throttle output from the receiver to drop to 0 for a period. The radio also omitted a high-pitched tone for a few seconds when this happened.

    I have been able to reproduce this in my workshop by looking at the receiver output when switching modes on the transmitter.

    I've not been able to find any reference to this high-pitched tone in the manual, and there were no error messages on the display. Do you have any ideas of what this is? Should I replace my transmitter? I've experienced the same problem with two different receivers now.2

  • #2
    Hva skjer om du bytter funksjonen til en annen bryter da? Samme resultat?

    ... Å fly doninger rundt med radio du ikke stoler på .. Ikke noe for meg i alle fall.
    Du har herved en kjempegod grunn til å kjøpe 18Mz
    Tom I. Arntsen

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    • #3
      The channel is a mix between two switches, so I haven't tried changing this around yet. I will try to do so.

      I see you have already answered my follow-up question, which radio should I replace it with . Is there any specific reason you mention the 18Mz?

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      • #4
        18Mz er jo helt klart den råeste radioen ever.
        Koster en formue, men du får alt du trenger og masse du ikke trenger og du har radio i mange år.

        En 14SG er ikke noe dårlig valg det heller da, men ... vel..
        Tom I. Arntsen

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        • #5
          Do you think I would be happy with a DX9?

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          • #6
            Hei (regner med at du har norsk som morsmål), min vurdering er at det er en miks som er aktivert. 9C er en god radio. 18 mz er som Xillian sier den beste, men meningsløst dyr.
            Anders Eiebakke
            90078513

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            • #7
              Originally posted by xilian View Post
              Koster en formue, men du får alt du trenger og masse du ikke trenger og du har radio i mange år...
              ... I hvertfall til det kommer noe bedre. Radioer varer aldri mange år om en har litt innteresse av nye ting
              Rasmus Fauske
              TDR 2012, MD8 @ 14S, MD6 @ 7S, Pantera 50, KDS Chase 360, BigNasty
              http://www.easyisp.no http://www.rc-batteri.no

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              • #8
                2
                Originally posted by bjeff View Post
                Hei (regner med at du har norsk som morsmål), min vurdering er at det er en miks som er aktivert. 9C er en god radio. 18 mz er som Xillian sier den beste, men meningsløst dyr.
                If I was able to consistently repeat the glitch I would agree with you that it is a weird mix. However, I have only been able to repeat it on a few occasions, and when it occurs it resolves itself within 0.25 to a few seconds. Also, I have never had this problem before, and I have not altered the programming for the model in a very long time.

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                • #9
                  OK, da er radioen grounded. Med min 9C (som jeg fortsatt bruker til UHF) opplevde jeg for noen år siden at den ene stikka ikke funka, det viste seg at en kontakt til stikka hadde løsna.
                  Anders Eiebakke
                  90078513

                  Comment


                  • #10
                    • Bruker du denne radioen kun til en multirotor modell?
                    • Du sier at 9C'en har en Spektrum modul, har du prøvd radioen mot den originale Futaba modulen. Har du samme feil?
                    • Bruker du Spektrum sitt originale modul til Futaba eller er dette noe "hjemme laget"?

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