Humminbird HDR 650 Fish Finder User Manual


 
6. Adjust the initial angle of the transducer from back to front by rotating the
transducer until the side seam on the transducer is almost parallel with the
bottom of the boat, one click at a time in either direction (see the
illustration Adjusting the Initial Transducer Angle).
7. Adjust the transducer assembly vertically, until the seam on the leading edge
of the transducer (the edge closest to the transom of the boat) is level and
just slightly below the hull (see the illustration Adjusting the Transducer
Mounting Position).
NOTE: The transducer has a natural downward slant of 4-5 degrees from leading
edge (closest to the boat transom) to trailing edge (farthest away from the boat).
Looking at the back of the transducer, the seam should be slightly below the
bottom of the hull.
8. Continue to adjust until the bracket is also level from port to starboard
(horizontally level as you look at the transducer from behind the boat (see
the illustration Leveling the Mounting Assembly Horizontally).
Adjusting the Initial Transducer Angle
One click too low
Trailing edge
Correctly aligned
(transducer side seam
aligned with boat bottom)
One click too high
Leading edge
17
Transom Mount Transducer Installation