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Salt Water Communications

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  • #16
    Originally posted by redboat219 View Post
    Funny this is the exact study I referenced in the first post :)

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    • #17
      Apparently the Arduino doesn't have the power for an acoustic system.

      http://my.fit.edu/~swood/John%20Clau...al%20Paper.pdf


      If you look to OTS solutions, acoustic modems looks like the way to go. With two of these and some programming on your part, you can probably come up with a workable acoustic control system.

      https://bluerobotics.com/store/comm-...ms/wl-11003-1/

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      • #18
        Well I just got back some quotes for acoustic transmitters and now I know why they are not used in RC hobbies. Transmitters run in the $7000 range :(

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        • #19
          Originally posted by SteveT44 View Post
          Apparently the Arduino doesn't have the power for an acoustic system.

          http://my.fit.edu/~swood/John%20Clau...al%20Paper.pdf


          If you look to OTS solutions, acoustic modems looks like the way to go. With two of these and some programming on your part, you can probably come up with a workable acoustic control system.

          https://bluerobotics.com/store/comm-...ms/wl-11003-1/
          Great link, $1400x2 is getting closer to doable.

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          • #20
            Originally posted by coryhenry View Post
            I live in San Diego and fortunately or unfortunately (depending on how you see it) I am surrounded by salt water. This includes our local RC pond. I just received the Kilo kit from Bob Martin (thank you very much Bob) and wanted to explore ways to communicate in salt water. I came upon this research paper that describes how they developed an acoustic system for RC vehicles that is simple and intuitive using acoustics. IT looks like the form factor could be implemented in RC Submarines and I wanted to get the opinions from the experts on here. In the meantime I plan to run the antenna up through the a snorkel so I can run at periscope depth in the local pond. I have about six months left in my Middle East deployment so have time to work out the problem set :)

            Here is the link to the paper
            http://robert.katzschmann.eu/wp-cont...015compact.pdf

            Thoughts?
            Cory
            Even the tried and true 75 MHz radios don’t like salt water. Real subs use VLF, Very Long Frequency, to communicate with a base. These receiver antennas are massive. Besides, running in salt water is not advised. Corrosion being the factor. Try these guys. https://sandiegoargonauts.com
            Last edited by Das Boot; 07-22-2020, 02:15 PM.

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            • #21
              Most of the fully submersible sub models run in clear swimming pools (my observation) and unfortunately the growing trend is to convert the fresh pool water to salt water to enable electric chlorine manufacture on site-The operational environment is growing even smaller!

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