Interphase Advantage User Manual page 12

Attach Brackets to Transducer
Rear View
Side View
Bottom of Transducer 1/4" Below Bottom of
Hull
Boat's Hull
Attaching the Transducer to the Bracket
Assemble the mounting bracket to the transducer using the 4
screws, washers and lock nuts provided. The bracket arms
must be mounted outside the plastic mounting ears of the
transducer. Do not fully tighten the lock nuts at this time.
Mounting the Transducer to the Boat
1) Place transducer and bracket at the selected location
on the boat's transom. Align the bracket so that the bottom
surface of the transducer is about 1/4" below the underside of
the boat's hull. (See figure at bottom left). Good results can be
achieved on most boats when the bow of the transducer is
about 1/4" below the hull. It is not recommended to place the
transducer further down than necessary because it increases
drag and spray, reduces boat top speed and increases water
noise generated by the transducer.
2) Mark an outline of the slot locations on the hull.
Mark the screw locations in each slot outline as shown in the
sketch at the top left of the following page. Drill four holes,
each 1/2" to 5/8" deep using a 9/64" drill. (Masking tape
wrapped around the drill 5/8" back from the point is one
method to prevent drilling too deep.) Also, in fiberglass hulls,
chamfer the gelcoat to prevent surface cracks. Drilling first
with a 1/4" drill about 1/8" deep is an easy way to prevent
surface cracks.
3) Using the four panhead sheet metal screws provided,
attach and tighten the bracket to the hull so that the transducer
projects 1/4" below the underside of the hull. Align the fore/
aft angle of the transducer so that the rear is approx. 1/8" lower
than the forward point. (See figure at right on following page).
Tighten the four transducer bolts and the four sheet metal
screws.
Route the cable to the Advantage display being
4)
careful not to tear the cable jacket when passing through
bulkheads, etc. To reduce electrical interference, keep the
transducer cable separated from ignition, tachometer,
alternator or other electrical wiring. Secure the transducer
cable in place with "tie-wraps" or lacing twine.
5) Do not remove the connector or cut or splice the
cable to ease cable routing. Either cut holes large enough to
pass the connector or choose a different route to the display.
1/4"
Connector removal or cable splicing voids the transducer
warranty. Flake out any excess cable and secure in place.
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