Cannon DIGI-TROLL 10 Owner's Manual - page 18
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Digi-Troll Transducer
By purchasing the optional Digi-Troll transducer accessory (1491072), the Digi-Troll 10 is able to display water depth
and independently bottom track.
Installing the Optional Transducer
Proper transducer installation is critical to the performance of your Digi-Troll’s depth tracking features. For best re-
sults, follow all mounting instructions carefully.
Where to Mount the Transducer
Any location along the bottom edge of the transom is acceptable. The preferred mounting position is within the center
1/3 of the transom excluding the area directly in line with the boat’s propeller. The transducer must be mounted where
the water is smooth and free of bubbles. It may be helpful to drive your boat at a variety of speeds and observe where
the water fl ows most smoothly off the transom before deciding on a mounting location. The sonar signals cannot
travel through either open air or turbulent water, therefore, you must make sure that the transducer is in contact with
undisturbed water at all times.
If you have an aluminum boat, avoid placing the transducer behind a row of rivets. The rivets will cause turbulence
and air bubbles. Water turbulence is minimized when the transducer face is mounted below the bottom of your boat.
In certain applications for non-metallic hulled boats, the transducer can be positioned in the bilge with the bottom sur-
face of the transducer as level as possible. Make sure that the transducer is submerged at least 2 inches at all times.
How to Mount the Transducer
To mount the transducer, you will need:
A slotted screwdriver
A phillips screwdriver
Drill with a No. 28 or 9/64” bit
3/8” wrench
Silicone caulk
Follow the mounting instructions supplied with your transducer mounting hardware. Attach the transducer to the
brackets and tighten the bolts just enough to hold it in place. Using the brackets as a guide, mark and drill the four
mounting screw holes 1/2” to 5/8” deep, using the No. 28 or 9/64” drill.
Loosely attach the transducer to the transom of your boat with the four #8 self tapping screws supplied. Adjust the
brackets until the desired height is achieved and snug up the screws.
The fl at surface on the transducer should be as parallel with the water surface as possible, but tipped forward just
enough to keep water pressure on the fl at surface when the boat is moving and should be 1/16” to 1/8” below the hull
of the boat. Tighten up the bolts.
Remove the #8 self tapping screws one at a time and fi ll the hole with silicone caulk. Failure to do so may seriously
damage your boat! Reinsert each screw and tighten.
NOTE: On aluminum boats it may be necessary to use a wooden backing plate between the transom and the brack-
ets. Attach a 7” piece of 1 x 6 hardwood fl ush with the bottom of the hull, and attach the transducer per the above
instructions. Be sure to varnish the wood and silicone the screw holes thoroughly to prevent leakage and damage to
your boat.
Installation