Technical article from Lowrance
Transducer Installation Guide
Gimbal Mount Unit
The unit can be installed
on the top of a dash or from an overhead. Mount the unit in any
convenient location, provided there is clearance, when it is
tilted for the best viewing angle. Holes in the bracket’s
base allow wood screw or through bolt mounting. It may be
necessary to place a piece of plywood on the back side of thin
panels to reinforce the panel. Make certain there is enough room
behind the unit to attach the power and transducer cables.
Drill a hole in the dash for the power and transducer cables. The
best location for this hole is immediately under the gimbal
bracket. This way, the bracket covers the hole. The smallest hole
the power/transducer cable connector can pass through is
Note: Install the transducer before wiring the power cable!
After installing the transducer and power cables, slide the
bracket over the hole, then route the transducer and power cables
out the slot in the back of the bracket. Finally, fasten the
bracket to the dash.
Attach the unit to the gimbal bracket using the
supplied gimbal knobs and washers as shown above.
Permanent Mount TransducerThe "kick-up" mounting bracket helps prevent damage if
the transducer strikes an object while the boat is moving. If the
transducer does "kick-up", the bracket can easily be pushed back
in place without tools.
mount transducer can be installed on any outboard or stern-drive
(inboard\outboard) powered boat.
Always read the transducer installation instructions that came
with your unit carefully before attempting the installation.
Determine which of the mounting positions is right for your boat.
Use extreme care when mounting the transducer, since the
transducer location is the most critical part of a sonar
installation. If it isn’t done properly, the sonar
can’t perform at it’s designed potential.
1. The transducer must be placed in a location that has a smooth
flow of water at all times. If the transducer is not placed in a
smooth flow of water, interference will show on the sonar’s
display in the form of random lines or dots whenever the boat is
2. The transducer should be installed with it’s face
pointing straight down, if possible.
3. Make certain the transducer's location doesn’t interfere
with the trailer or hauling of the boat. Also, don’t mount
it closer than approximately one foot from the engine’s
lower unit. This will prevent cavitation interference with the
propeller. Typically, the transducer should be mounted as deep in
the water as possible. This increases the chance that it will be
in the water in high speed and reduces the possibility of air
4. If possible, route the transducer cable away from other
wiring on the boat. Electrical noise from engine wiring, bilge
pumps, and aerators can be displayed on the sonar’s screen.
Use caution when routing the transducer cable around these
Original article from Lowrance