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Eagle FISHMARK 320 User Manual

Eagle FISHMARK 320
92 pages
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Pub. 988-0143-661
www.eaglesonar.com
FishMark 320 and
SeaFinder 320DF
Fish-finding & Depth Sounding Sonars
Installation and Operation
Instructions

Table of Contents

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Eagle FISHMARK 320 Specifications

General IconGeneral
Display Size3.5 inches
Sonar Frequency200 kHz
Depth Capability800 feet
Waterproof RatingIPX7
Display TypeLCD

Summary

Section 2: Installation & Accessories

Transducer Installation

Guides on mounting the sonar transducer on transom, trolling motor, or hull.

Selecting a Transducer Location

Provides guidance on choosing the optimal placement for the transducer on the boat.

Power Connections

Instructions for correctly connecting the sonar unit to a 12-volt power source.

Mounting the Unit

Covers bracket, in-dash, and portable mounting options for the sonar unit.

Section 3: Basic Sonar Operation

Quick Reference Guide

Provides a step-by-step guide for basic fishing operations and settings.

Section 5: Troubleshooting

Unit Won't Turn On

Steps to diagnose and fix issues when the sonar unit fails to power up.

Unit Freezes, Locks Up, or Operates Erratically

Solutions for common operational problems like freezing or erratic behavior.

Weak Bottom Echo, Erratic Readings, or No Fish Signals

Troubleshooting for poor sonar performance and signal issues.

Noise

Identifying and resolving electrical noise interference affecting the sonar display.

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