Garmin 02187 User Manual

GHC™ 20

Owner’s Manual

March 2013 190-01610-00_0A Printed in Taiwan

DRAFT

All rights reserved. Under the copyright laws, this manual may not be copied, in whole or in part, without the written consent of Garmin. Garmin reserves the right to change or improve its products and
to make changes in the content of this manual without obligation to notify any person or organization of such changes or improvements. Go to

www.garmin.com for current updates and supplemental

information concerning the use of this product.

Garmin® and the Garmin logo are trademarks of Garmin Ltd. or its subsidiaries, registered in the USA and other countries. GHC™ and Shadow Drive™ are trademarks of Garmin Ltd. or its subsidiaries.
These trademarks may not be used without the express permission of Garmin.

NMEA®, NMEA 2000, and the NMEA 2000 logo are registered trademarks of the National Marine Electronics Association.

DRAFT

Introduction

WARNING

See the Important Safety and Product Information guide in the product box for
product warnings and other important information.

You are responsible for the safe and prudent operation of your vessel. The
autopilot is a tool that will enhance your capability to operate your boat. It does
not relieve you from the responsibility of safely operating your boat. Avoid
navigational hazards and never leave the helm unattended.

Always be prepared to promptly regain manual control of your boat.
Learn to operate the autopilot on calm and hazard-free open water.
Use caution when operating the autopilot near hazards in the water, such as

docks, pilings, and other boats.

The autopilot system continuously adjusts the steering of your boat to maintain a
constant heading. In addition to the basic heading-hold functionality, the system
allows manual steering and several modes of automatic-steering functions and
patterns.

Operate the autopilot system using the helm control device. Using the helm
control, you engage and steer, set up, and customize the autopilot system.

To install the autopilot system, including the helm control, refer to the installation
instructions for each device.

Device Overview

À

Standby key

Á

Soft keys

Â

Power key

Tips and Shortcuts

•

Select STBY to place the autopilot in standby mode and return to the heading
screen.

• Select Menu from any main screen to access additional settings about that
screen.

• Select

to adjust the backlight.

• Hold to turn the chartplotter off.

Introduction 1

DRAFT

Heading Screen

The heading screen displays the status of the autopilot and the heading screen.

Standby Mode

CAUTION

The autopilot does not steer the boat in standby mode. You are responsible for
controlling the helm, when in standby mode.

In standby mode, you can engage the autopilot, adjust settings, or specify the
transmission direction (page 2) of your boat (forward or reverse) by using the
soft keys.

"Standby" appears in yellow and a yellow icon displays in the upper-right corner
of the screen when the device is in standby mode.

Powerboat Autopilot Operation

Heading Hold

You can engage the autopilot heading hold function to maintain your current
heading without steering the helm.

Engaging the Autopilot

When you engage the autopilot, the autopilot takes control of the helm and steers
the boat to maintain your heading.

From the heading screen, select Engage.
"Heading Hold" appears in green at the top of the heading screen. A green

icon appears in the upper-right corner of the screen when the device is in
heading hold. This icon helps you determine the status of the autopilot and
can be seen on every screen on the device. Your heading shows in the
center of the heading screen.

Heading Adjustment

When the autopilot is engaged, you can adjust the heading using the keys on the
helm control or using the helm if your autopilot is equipped with

Shadow Drive™

technology.

Adjusting the Heading with the Helm

NOTE: When you manually maintain a specific heading for a few seconds, the

autopilot resumes control of the new heading.

With the autopilot engaged, manually steer the boat.
A yellow marker and the numerical display on the center of the heading

screen indicate the intended heading.

Adjusting the Heading with the Keys

You can steer your boat using the keys at the bottom of the helm control.

With the autopilot engaged, select an option.

• Select 1°> 10°>> or <<10° <1° to use rudder steering mode. Rudder
steering mode turns the boat in 1° increments, and steers the boat when
you hold a key.

• Hold 1°> 10°>> or <<10° <1° to use step steering mode. Step steering
mode turns the boat in 10° increments.

Direction Control

When your boat is properly equipped, you can control the drive direction of the
boat (forward or reverse) using the helm control.

Enabling Direction Control

1

Select Menu > Setup > User Autopilot Setup > Direction Control.

2

Select Enabled.

Using Direction Control

Before you can use direction control, you must enable the direction control
functionality (page 2).

When traveling in standby mode, select Direction.

2 Heading Screen

DRAFT