Lowrance HDS series Installation Manual page 20

Aligning and Attaching the Transducer
Adjust the transducer so that its "face" is parallel with the ground and its center line is even
with the bottom of the boat hull.
Transducer bracket
mounted too low.
Note:
When mounting the transducer to the transom, there are two extremes you should
avoid, first, do not let the edge of the mounting bracket extend below the bottom of the hull,
left image, above. Second, do not let the bottom of the transducer rise above the bottom of
the hull, right image, above.
The center line of the transducer
should be level with the bottom of
the boat hull and its "face" parallel
with the ground.
Transducer face
Do not over tighten
the transducer bracket
lock nut. If you do,
the transducer may not
"kick-up" if it strikes an
object in the water.
Transom
Bottom of hull.
19
Transducer bracket
mounted too high.
Transom
Bottom of hull.
For single frequency
transducers, with a
one-piece bracket,
assemble it with the
cable passing over the
bolt and through the
bracket, as shown here.
Transom
Bottom of hull.