Mounting The Transducer - Garmin Fishfinder 250 Owner's Manual

Installing the Transducer
Proper transducer installation is key to getting the best performance from your new unit. If the trans-
ducer lead is too short, extension cables are available from your Garmin dealer. Coil and secure any excess
cable. DO NOT cut the transducer lead or any part of the transducer cable, as this will void your warranty.
The cable cannot be spliced and connected to any existing (Garmin or non-Garmin) transducer cables.
Following are some tips and basic installation instructions for some popular transducers. Detailed
installation instructions are provided in the transducer kits. Some transducers may need to be
installed by a professional marine installer.
Transom Mount Installation
Transom Mount Transducer
(depth/temp)
Apply marine sealant to all
screw threads to prevent water
from seeping into the transom.
OK
Mount the transducer parallel with the bottom.
DO NOT mount the transducer behind strakes,
USS Jayhawk
struts, fi ttings, water intake or discharge ports,
or anything that creates air bubbles or causes the
water to become turbulent. It is important that the
transducer be in clean (non-turbulent) water for
optimal performance.
Mount the transducer cable cover
well above the waterline.
Transducer should extend 1/8" (3mm) below
fiberglass hull or 3/8" (10mm) below aluminum hull
Make sure that the transducer is
below water level when the boat
is on plane at high speed
Do not mount transducer directly in the
path of the prop. The transducer can cause
cavitation that may degrade the boat's performance
and damage the prop.
Installation

Mounting the Transducer

To Unit
Speed Temp Transducer
Connecting a Transducer to Multiple Sensors
7