how do i listen to dolphins ??

  1. 7,397 Posts.
    Have recently purchased a property on an estuary and seen lots of dolphin activity and wondering if I could eaves drop on them,

    So I am looking for some technical information as to how I can listen to the underwater sounds of dolphins,

    I believe a hydrophone is used and possibly feed into an amplifier similar to a conventional audio microphone ,

    Any help appreciated hopefully in the low budget area


    Thanks
 
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