Humminbird transducer Manual

High Speed Transducer
Thank You
Thank you for choosing Humminbird®, America's #1 name in fishfinders. Humminbird® has
built its reputation by manufacturing top-quality, thoroughly reliable marine equipment.
Genuine Humminbird® accessories offer the opportunity to upgrade and expand the
capabilities of your Humminbird® product.
NOTE: Your transducer may not look exactly like the transducer shown in the
illustrations, but it will mount in exactly the same way.
About Transom Mount Installation
There are a number of ways to install a transducer on your boat. The transom mount
installation provides the least loss of signal since the transducer is mounted outside the boat
hull. This installation also allows adjustment of both running angle and depth after the
transducer is mounted, which enables you to tune the installation for best results. Also, the
mounting hardware is designed to pivot the transducer body out of the way should the boat
strike debris in the water, or when trailering. All necessary hardware is included for this type
of installation.
Before You Start
Following are instructions for the installation of the High-Speed Transducer. We encourage
you to read these instructions carefully to get full benefit from your Humminbird® accessory.
If you find that any items are missing from your installation kit, contact our Humminbird®
Customer Resource Center at 1-800-633-1468 or visit our website at www.humminbird.com.
In addition to the hardware supplied with your transducer, you will need a powered hand drill
and various drill bits, Phillips and flat head screwdrivers, a ruler or measuring tape, pen or
pencil, and silicone sealant.
Locating the Transducer
As a boat moves through the water, turbulence is generated by the weight of the boat and
the thrust of the propeller(s). This turbulent water is normally confined to areas immediately
aft of ribs, strakes, or rows of rivets on the bottom of the boat, and in the immediate area of
the propeller(s). It is very important to locate the transducer in an area of relatively
turbulence-free water. If the propeller(s) are forward of the transom, it may be impossible to
find an area clear from turbulence, and a different mounting technique should be considered.
If possible, viewing the transom of the boat while the boat is moving will provide the best
means of locating clear water, and if maximum high-speed operation is a high priority, this is
the recommended method. If this is not possible, select an area on the transom where the
hull forward of this location is smooth and free of protrusions or ribs.
Another consideration is the angle of deadrise. The transducer, when mounted, should point
straight down. The design of the transducer will allow a deadrise of 15 degrees while
remaining pointed straight down. If the deadrise is greater than 15 degrees it will be
necessary to angle the transducer slightly. While this does not significantly degrade
performance, you must keep in mind that the area you are viewing on your fishfinder screen
may be somewhat to one side of the boat.
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