2.4GHz to 75MHz transmitter

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  • cheapsub
    Lieutenant Commander
    • Dec 2019
    • 187

    2.4GHz to 75MHz transmitter

    Just a joke.

    May be not.
  • cheapsub
    Lieutenant Commander
    • Dec 2019
    • 187

    #2
    And

    This dumb dumb did the monkey see monkey do.

    Attached Files
     

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    • Kim Sleep
      Commander
      • Nov 2013
      • 329

      #3
      Why,? there are so many 75mhz, and other frequencies that are available on EBay Euro that this is unnecessary
      A man of true Frankenstinean proportions!!

      Comment

      • cheapsub
        Lieutenant Commander
        • Dec 2019
        • 187

        #4
        Just like stuff a V8 in to a subcompact.
        I am a one sick poppy.

        Comment

        • cheapsub
          Lieutenant Commander
          • Dec 2019
          • 187

          #5
          Little up date, now works with futaba module. Just make a adopter board. no 6V regulators needed.

          Attached Files

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          • cheapsub
            Lieutenant Commander
            • Dec 2019
            • 187

            #6
            Does this count?
            is synthesized!
            Attached Files

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            • Kim Sleep
              Commander
              • Nov 2013
              • 329

              #7
              We just need a step by step conversion details
              A man of true Frankenstinean proportions!!

              Comment

              • cheapsub
                Lieutenant Commander
                • Dec 2019
                • 187

                #8
                It works with futaba too, at the banch. Need more testing. Opentx stuff.
                will try it with a hitec transmitter.

                Here we go.
                Find a working JR XS3 synthesized transmitter, not XR3!
                $25 plus shipping. At evil bay.
                gutting the transmitter, remove the bits not longer need.
                fing pin 8 from RF board (small one) , cut it . Connect it to the flysky th9x's PPM signals and power to the main board.
                still need the main board, to change the channel.
                stuff all the board in to a box. Done.

                Any questions?
                Attached Files
                Last edited by cheapsub; 06-29-2020, 12:36 PM.

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                • cheapsub
                  Lieutenant Commander
                  • Dec 2019
                  • 187

                  #9
                  More pictures

                  50/50 you may get a JR XS3.

                  https://www.ebay.com/itm/324150651009

                  https://www.ebay.com/itm/173956096224
                  This is Evil Bay after all.
                  Attached Files
                  Last edited by cheapsub; 06-29-2020, 12:48 PM.

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                  • cheapsub
                    Lieutenant Commander
                    • Dec 2019
                    • 187

                    #10
                    Nice Gadget to have for group run.

                    Attached Files

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                    • cheapsub
                      Lieutenant Commander
                      • Dec 2019
                      • 187

                      #11
                      Find one, but is not 75 MHz, batter then nothing.
                      the clean look that counts.
                      have to build a box for the other one.
                      It works with hitec optic 6 too [different pin in], that can change between (+) and (-) shift. Still in reverse shift. Well it works.

                      The end.
                      Attached Files

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                      • cheapsub
                        Lieutenant Commander
                        • Dec 2019
                        • 187

                        #12
                        Synthesized the dead. Click image for larger version

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                        • Kim Sleep
                          Commander
                          • Nov 2013
                          • 329

                          #13
                          Originally posted by cheapsub
                          Synthesized the dead. Click image for larger version  Name:	20201127_012545_1024x1125.jpg Views:	24 Size:	57.2 KB ID:	145343
                          See now thats smart...there are a million 75Mhz modules out there, for Pistol grip transmitters....someone should be working on how to make those work with full size transmitters
                          A man of true Frankenstinean proportions!!

                          Comment

                          • He Who Shall Not Be Named
                            Moderator
                            • Aug 2008
                            • 12255

                            #14
                            Originally posted by Kim Sleep

                            See now thats smart...there are a million 75Mhz modules out there, for Pistol grip transmitters....someone should be working on how to make those work with full size transmitters
                            I completely agree!!!!! I would pay serious money for such a module equipped with an interface jack. This could be a gold-mine for some smart cookie out there in tinker-land.
                            Who is John Galt?

                            Comment

                            • cheapsub
                              Lieutenant Commander
                              • Dec 2019
                              • 187

                              #15
                              Still a mystery on pin input. Airtronics doesn't make it easy.
                              Testing with futaba, hitec should be ok too.
                              9x on er9x more flexible.
                              will post if things go ok.

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