Prepare The Mounting Location - Humminbird PiranhaMAX 165 Installation And Operation Manual

transducer out of the water at higher speeds. The transducer must
remain in the water for the control head to maintain the sonar signal
(Figure 10).
• If the transom is behind the propeller(s), it may be impossible to find an
area clear from turbulence, and a different mounting technique or
transducer type should be considered, such as an Inside the Hull
Transducer.
• If you plan to trailer your boat, do not mount the transducer too close
to trailer bunks or rollers to avoid moving or damaging the transducer
during loading and unloading of the boat.
• If high speed operation is critical, you may want to consider using an
In-Hull transducer instead of this Transom Mount transducer.
Find a turbulence-free location at least 15" from the propeller(s)
and not in line with trailer bunks or rollers. (Figure 11).
NOTE: The hydrodynamic shape of your transducer allows it to point straight down
without deadrise adjustment (Figure 12).
NOTE: If you cannot find a transom mount location that will work for your
high-speed application, please visit the FAQ (Frequently Asked Questions) section
of our Web site at humminbird.com or call our Customer Resource Center at
1-800-633-1468.

2. Prepare the Mounting Location

After determining the mounting location for the transducer, follow the steps
below to position and mount the transducer bracket.
Transom Transducer Installation
15"
Level
10
Deadrise Angle
Figure 12