Humminbird LCR 4x6 Operation Manual page 7

TRANSDUCER MOUNTING OPTIONS
A. Transom Mount- The Humminbird high speed transducer allows the transducer element to be
mounted below the bottom of the boat hull keeping the transducer out of turbulent water and
insuring good high speed operation. The transducer will absorb the blow of any obstruction
by rotating up out of the metal spring bracket without harming the transducer, or your boat.
The transducer can be re-engaged by simply rotating the transducer down and snapping it
back in place. (See Figure A)