Simrad Forwardscan User manual

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ForwardScan | User Guide

Installation

Connecting the transducer

The ForwardScan™ transducer can be connected to the

StructureScan port on the SonarHub or the NSS evo2, leaving the

sonar port open for a CHIRP transducer. Refer to the ForwardScan

installation manual for transducer installation instructions.

Sonar performance

The accuracy of the sonar depth display can be aected by many

factors, including the type and location of the transducer and

water conditions. Never use this equipment to gauge depth or

other conditions for swimming or diving.

The choice, location, and installation of transducers and other

components of the system are critical to the performance of the

system as intended. If in doubt, consult your dealer.

To reduce the risk of misusing this equipment, you must read and

understand all aspects of the supplied documentation.

Sharing ForwardScan data

ForwardScan data can be shared with NSO evo2, NSS evo2 or

Zeus2displays by connecting the forward-looking transducer to a

SonarHub on your Ethernet network.

You can also connect the transducer to a NSS evo2 to share

ForwardScan data with multi-function displays on your Ethernet

network.

¼Note: We do not recommend operating dierent brands of multi-

function displays on the same network.

Warning: Do not rely on this equipment as your principle

source of navigation or hazard detection.

ForwardScan™ Sonar

User guide

Warning: It is the owner’s sole responsibility to install and

use the equipment in a manner that will not cause accidents,

personal injury or property damage. The user of this product is

solely responsible for observing safe boating practices.

ForwardScan | User Guide

Operation

ForwardScan™ forward-looking sonar is a navigational aid that

helps you monitor the depth in front of your vessel.

ForwardScan features are available in the latest software update

for your multi-function display. Refer to your display’s brand

website to download the latest update.

¼Note: Screen captures in this document are from a NSS evo 2 unit.

The look of your unit may dier slightly, but it will operate in a

similar manner.

Key Description

1Transducer location shown as the origin on the screen

2Depth range scale/Boat position

3Point data

4Depth history

5Bottom

6Forward range scale

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ForwardScan | User Guide

Accessing ForwardScan

ForwardScan sonar can be displayed full screen or in a multi-

panel page. Refer to your operation manual for information

about setting up a multi-panel page.

ForwardScan setup

Critical forward range and Critical depth

Critical Forward Range and Critical Depth are user-selected

thresholds that dene a critical zone forward of your vessel.

If you travel into water shallow enough to cross into the critical

zone, the Critical Zone alarm is activated. You can display the

critical and warning zones by activating Show zones.

Warning Forward Range and Warning Depth values are based on

the selected Critical Forward Range and Critical Depth values.

¼Note: To receive Critical Zone alerts, enable ForwardScan alarm

on the Alarm settings tab. Refer to your unit’s operation manual

for information on enabling alarms.

Warning zone

Critical zone

ForwardScan display with Show zones active

ForwardScan | User Guide

Heading extension

You can use the heading extension to monitor ForwardScan

on the chart panel. Heading extension colors are based on

ForwardScan alarm values.

ForwardScan extension

Green Safe

Yellow Warning

Red Critical

Select ForwardScan in the Extension lines options dialog to view

ForwardScan heading extension on the chart panel.

Red/Critical

Yellow/Warning

Green/Safe

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ForwardScan | User Guide

Transducer angle

We recommend installing the transducer vertical to the waterline.

In cases where that is not possible, the Transducer Angle setting

helps oset the dierence between the transducer angle and the

waterline.

If the transducer is angled toward the front of the vessel, a

positive value (0 to +15°) is entered in the Transducer angle

dialog. If the transducer is angled toward the rear of the vessel,

a negative value (0 to -15°) is entered in the Transducer angle

dialog.

ForwardScan options and settings

Depth

Controls depth range. Depth range is set to auto mode by

default.

Forward range

Controls the forward looking range. Maximum Forward range is

300’ (91 m).

Noise Rejection

Filters out signal interference and reduces on-screen clutter.

Record

Used to record ForwardScan sonar logs.

Pause

Pauses ForwardScan sonar transmissions.

Warning: Adjustments to the transducer angle value should

be done with caution. Large variations in the transducer angle

value can distort depth data, increasing the risk of striking

underwater obstructions.

ForwardScan | User Guide

View

Palette

Several display palettes are available for a variety of water

conditions.

History ratio

Controls how much of the screen is used to show sonar history

on the ForwardScan image. The higher the ratio, the more history

will be shown.

Point data

By default, ForwardScan only shows the bottom. Access the Point

data menu to view all sonar data points, or only points (Objects)

in the water column.

Show zones

Displays warning zones (yellow) and critical zones (red) on the

screen.

Depth lines

Lines on the screen that make it easier to quickly estimate depth

and the underwater objects.

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