🚀 go-pugleaf

      Steve Shelley asked about an inside mounted transducer for a depth
sounder in a previous article:

     Steve, I have seen advertisements in several boating catalogs for a
small clear plastic dome with a lip around the edge which gets screwed
and/or glued down to the inside of your hull.  The dome is inverted.  The
transducer is placed inside the dome.  The dome is then filled with a fluid,
mineral oil I think.  This fluid couples the sound waves from the hull to
the transducer.  I do not know how well they work.  I believe you have to
use a different transducer than the type that gets mounted on the transom,
but maybe not.  You should consult a local marine electronics installation
person for more help.