What to expect...conversion cost Type VIIc sub

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  • davietait
    Junior Member
    • Jul 2006
    • 135

    #16
    That sounds ok , I

    That sounds ok , I cannot see me needing more than 4 channels just now but i'll keep that set in mind for the future.

    Davie

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    • Guest

      #17
      Although we may have to

      Although we may have to pay more for just about everything here in the UK, one thing I have noticed is that we have a much wider selection of RC equipment here than across the pond, and pricewise things are about the same.

      The Multiplex 4000 is a force to be reckoned with if you want the ultimate in programmability.

      Not cheap though...........

      Andy

      Comment

      • JWLaRue
        Managing Editor, SubCommittee Report
        • Aug 1994
        • 4281

        #18
        I'm actually seriously considering one

        I'm actually seriously considering one of the Multiplex Evo's....

        Looks like a good unit.

        -Jeff
        Rohr 1.....Los!

        Comment

        • bigdave
          Junior Member
          • Feb 2003
          • 3596

          #19
          Come on Jeff! Take the

          Come on Jeff! Take the plunge
          Best R/C system made in my book!!

          I have two of them!
          You are right about the 4000 Andy. That is the best but you have to be a software engineer to program it, and it takes two men and a boy to lift it. But it is the best. BD
          sigpic"Eat your pudding Mr Land"
          "I ain't sure it's pudden" 20K

          Comment

          • JWLaRue
            Managing Editor, SubCommittee Report
            • Aug 1994
            • 4281

            #20
            Hey BD!

            ....yea, but actually finding

            Hey BD!

            ....yea, but actually finding any here in the U.S. is another thing entirely. I can't use a synth'd version, I need the type that uses crystals so that I can get it converted to 75MHz.

            -Jeff
            Rohr 1.....Los!

            Comment

            • davietait
              Junior Member
              • Jul 2006
              • 135

              #21
              Jeff wouldn't a synth'd one

              Jeff wouldn't a synth'd one be easier to convert??

              With a fully synthisied TX setup its the PLL synth chip that determins the operating frequency so it could be very simple to change the PLL chip. I don't know how the motherboard of that Tx is laid out but i'm willing to bet the PLL chip is in an easily accessable place for maintenance and repair. Be worth asking an electronics engineer to see how feasible it would be.

              Just an idea Jeff thats all.

              Davie

              Comment

              • JWLaRue
                Managing Editor, SubCommittee Report
                • Aug 1994
                • 4281

                #22
                Hi Davie,

                That's what I thought

                Hi Davie,

                That's what I thought (or was hoping) would be the case. But when I e-mailed the MultiplexUSA rep about 75MHz conversions, he said that the synth'd versions cannot be done.

                -Jeff
                Rohr 1.....Los!

                Comment

                • davietait
                  Junior Member
                  • Jul 2006
                  • 135

                  #23
                  Hmmmmmm i'm willing to bet

                  Hmmmmmm i'm willing to bet that a qualified Electronics Engineer would have that set converted in 3hrs tops. They'll never admit to it being convertable as it would mean them loosing sales of their USA spec Tx's to sets imported from Europe.

                  I'd say that getting in touch with someone that can repair them will find out one way or the other as they'll have access to the Tx motherboard schematic's and spec's.

                  Davie

                  Comment

                  • bigdave
                    Junior Member
                    • Feb 2003
                    • 3596

                    #24
                    Hi Davie,
                    The guy Jeff

                    Hi Davie,
                    The guy Jeff is referring to is the repair tech for the Multiplex radios in the USA. I talked to Jeff the other night about this. He is not a sales rep. I have talked with this man before. It would be nice if he could do it, but he says no. Could be the company just will not let him. Super radio either way!! BD. Hopefully you can find one Jeff.
                    sigpic"Eat your pudding Mr Land"
                    "I ain't sure it's pudden" 20K

                    Comment

                    • JWLaRue
                      Managing Editor, SubCommittee Report
                      • Aug 1994
                      • 4281

                      #25
                      Yup, BD is right. I

                      Yup, BD is right. I also suspect it has something to do with FCC certifications......

                      -Jeff
                      Rohr 1.....Los!

                      Comment

                      • dietzer
                        Junior Member
                        • Feb 2003
                        • 255

                        #26
                        It is the FCC regulations.

                        It is the FCC regulations. It is illegal to modify an R/C transmitter.

                        The transmitter can be tuned to a different frequency by a certified repairman, but this basicly means all you are doing is swapping crystals and adjusting some variable capacitors, not unsoldering and replacing ICs. That's why swappable frequency modules are allowed, as they can be used without modifying the existing circuitry of the transmitter.

                        Sorry!

                        Carl

                        Comment

                        • bigdave
                          Junior Member
                          • Feb 2003
                          • 3596

                          #27
                          Hi Carl,
                          Thanks for the info.


                          Hi Carl,
                          Thanks for the info.
                          I know when I talked to the Multiplex sales rep years ago about having my first radio converted to 75MHZ he told me what they had to go through to get a radio USA certified. It was easier for them to build them all in 72 MHZ and have them sent back for conversion than to build them in 75 MHZ. BD.
                          sigpic"Eat your pudding Mr Land"
                          "I ain't sure it's pudden" 20K

                          Comment

                          • herrmill
                            Junior Member
                            • Jun 2006
                            • 97

                            #28
                            I've got $350 invested in

                            I've got $350 invested in mine at this point including my WTC & will be using one of my Futuba radio set ups from a tank gathering dust on the shelf. Figure another $100 if I want to get fancy & upgrade with wood decks & PE.

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