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Lowrance LCX-20C User Manual

Lowrance LCX-20C
200 pages
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Pub. 988-0151-261
www.lowrance.com
LCX-20C
Fish-finding Sonar & Mapping GPS
Operation Instructions

Table of Contents

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Lowrance LCX-20C Specifications

General IconGeneral
Display TypeColor TFT
Resolution480 x 480 pixels
GPSYes
Power Supply10-17 VDC
Display Size7 inches
Sonar Frequency200 kHz
SonarDual-frequency
Depth Capability2500 feet
MappingBuilt-in mapping
MemoryExpandable via MMC/SD card

Summary

Read Me First

Installation & Accessories

Transducer Installation

Provides instructions for installing the Skimmer transducer on a transom or hull.

GPS Antenna/Receiver Module

Explains the installation and connection of the LGC-2000 GPS antenna/receiver module.

Power Connections

Covers connecting the unit to power, including NMEA 2000 and direct battery connections.

Mounting the Unit: Bracket or In-Dash

Describes methods for mounting the sonar/GPS unit using a gimbal bracket or in-dash.

Basic Sonar Operation

Sonar Page

Explains the Sonar Page display, its features, and menu access.

Sonar Options & Other Features

ASP (Advanced Signal Processing)

Explains the ASP feature for noise rejection and display optimization.

Alarms

Details the types of sonar alarms (Fish, Zone, Depth) and how to configure them.

Sonar Troubleshooting

Unit won't turn on

Provides steps to diagnose and resolve issues when the unit fails to power on.

Unit freezes, locks up, or operates erratically

Offers solutions for unit malfunctions like freezing or erratic behavior.

Weak bottom echo, digital readings erratic, or no fish signals

Addresses problems with bottom echo, erratic readings, or lack of fish signals.

NOISE

Explains electrical noise as a cause of sonar display problems and how to minimize it.

Basic GPS Operations

Power/lights on and off

Instructions on how to turn the unit on, off, and control the backlight.

Navigation Page

Shows compass rose, direction of travel, and bearing to waypoints.

Map Page

Displays course, track, and location on a moving map.

Advanced GPS Operations

Routes

Covers creating, saving, and navigating predefined routes between waypoints.

System & GPS Setup Options

Alarms

Explains GPS alarms like Arrival, Off Course, and Anchor alarms.

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