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» 915mhz / 868mhz as a viable frequency for submarines.
Underwater navigation using UHF ? EmptyYesterday at 11:23 pm by tsenecal

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Underwater navigation using UHF ? EmptyYesterday at 11:02 pm by tsenecal

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Underwater navigation using UHF ? EmptySun Dec 11, 2022 5:57 am by lenD

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Underwater navigation using UHF ? EmptyFri Dec 09, 2022 9:50 am by david f

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Underwater navigation using UHF ? EmptyFri Dec 02, 2022 2:59 pm by david f

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2 posters

    Underwater navigation using UHF ?

    david f
    david f
    david f
    AMS Treasurer


    Posts : 2292
    Join date : 2010-11-10
    Age : 72
    Location : Cumbria
    • Post n°1

    Underwater navigation using UHF ? Empty Underwater navigation using UHF ?

    Post  david f Fri Jun 18, 2021 9:37 am


    When Jonathan introduced the topic of SDR (Software Defined Radio ) in the UHF radio control thread - he said "just remember that you will kiss good bye to a few hours of your life if you read any further :)"

    Well!

    Have a look at this link and click the video.

    https://www.rtl-sdr.com/category/kerberossdr/

    Substitute the boat for a sub and the TX for one on 433/458 and you may have it?

    David
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    SimonH
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    SimonH


    Posts : 60
    Join date : 2020-09-29
    Location : Nottingham, UK
    • Post n°2

    Underwater navigation using UHF ? Empty Re: Underwater navigation using UHF ?

    Post  SimonH Fri Jun 25, 2021 5:46 pm

    multiple antennas on a sub could be a challenge, anybody tried GPS underwater?
    It works to a degree, as I did once work on a system whose GPS Rx was aslo used by divers. As a result we had to copy the warnings about disconnected antennas underwater leading to disorentation & death into the manaul for a 6 wheel truck based system! OTT or what.
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