Garmin GNS 430W, GPS 400W Pilot’s Guide & Reference

400W Series

Pilot’s Guide
& Reference

Foreword

Foreword

Garmin International, Inc., 1200 East 151st Street, Olathe, Kansas 66062, U.S.A.
Tel: [phone] Fax: [phone]

Garmin AT, Inc., 2345 Turner Rd., S.E., Salem, Oregon 97302, U.S.A.
Tel: [phone] Fax: [phone]

Garmin (Europe) Ltd.
Liberty House, Bulls Copse Road, Hounsdown Business Park, Southhampton, SO40 9RB, U.K.
Tel. [phone] Fax [phone]

Garmin Corporation, No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan
Tel: [phone] Fax: [phone]

Web Site Address: www.garmin.com

This manual reflects the operation of Main System Software versions, 2.00, 3.00, or later. Some differences in opera­tion may be observed when comparing the information in this manual to earlier or later software versions.

© 2008 Garmin Ltd. or its subsidiaries. All rights reserved. Except as expressly provided herein, no part of this
manual may be reproduced, copied, transmitted, disseminated, downloaded or stored in any storage medium,
for any purpose without the express written permission of Garmin. Garmin hereby grants permission to down­load a single copy of this manual and of any revision to this manual onto a hard drive or other electronic storage
medium to be viewed for personal use, provided that such electronic or printed copy of this manual or revision
must contain the complete text of this copyright notice and provided further that any unauthorized commercial
distribution of this manual or any revision hereto is strictly prohibited.

Information in this document is subject to change without notice. Garmin reserves the right to change or improve
their products and to make changes in the content of this material without obligation to notify any person or
organization of such changes or improvements.

January 2009 190-00356-00 Rev. D

Cautions

Introduction

CAUTION: The Global Positioning System is operated

by the United States government, which is solely re­sponsible for its accuracy and maintenance. The system
is subject to changes which could affect the accuracy
and performance of all GPS equipment. Although the
Garmin 400W-series are precision electronic NAViga­tion AIDs (NAVAID), any NAVAID can be misused or
misinterpreted and therefore become unsafe.

CAUTION: Use the
reduce the risk of unsafe operation, carefully review
and understand all aspects of this Owner’s Manual and
the Flight Manual Supplement, and thoroughly practice
basic operation prior to actual use. When in actual use,
carefully compare indications from the
all available navigation sources, including the informa­tion from other NAVAIDS, visual sightings, charts, etc. For
safety, always resolve any discrepancies before continu­ing navigation.

WARNING: The altitude calculated by the 400W-series
is geometric height above mean sea level and could
vary significantly from altitude displayed by pressure
altimeters in aircraft.

WARNING: The Jeppesen database incorporated in
the 400W-series must be updated regularly in order
to ensure that its information is current. Updates are
released every 28 days. A database information packet
is included in your 400W-series package. Pilots using
an out-of-date database do so entirely at their own
risk!

CAUTION: GPS receivers operate by receiving and
decoding very low power radio signals broadcast by
satellites. It is possible that in some situations other
radio equipment or electronic equipment used in close
proximity to a GPS receiver may create electromagnetic
interference (EMI) which may affect the ability of the
GPS receiver to receive and decode the satellite signals.
In such event, the interference may be reduced or
eliminated by switching off the source of interference
or moving the GPS receiver away from it.

WARNING: VNAV is to be used for advisory purposes
only. VNAV messages or vertical speed required should
not be used to maintain terrain or ATC clearances. Ter­rain and ATC clearances are the sole responsibility of
the pilot.

400W-series

at your own risk. To

400W-series

to

INTRODUCTION

Cautions

CAUTION: The electronic chart is an aid to naviga­tion and is designed to facilitate the use of authorized
government charts, not replace them. Land and water
data is provided only as a general reference to your
surroundings. The positional accuracy of the land and
water data is not of a precision suitable for use in
navigation and it should not be used for navigation.
Only official government charts and notices contain
all information needed for safe navigation – and, as
always, the user is responsible for their prudent use.

CAUTION: The Terrain feature is for supplemental
awareness only. The pilot/crew is responsible for all
terrain and obstacle avoidance using information not
provided by the 400W-series Terrain feature.

CAUTION: The Garmin 400W-series does not contain
any user-serviceable parts. Repairs should only
be made by an authorized Garmin service center.
Unauthorized repairs or modifications could void your
warranty and authority to operate this device under
FCC Part 15 regulations.

NOTE: The GNS 400W-series units use a different
database than in the legacy units. The databases are in­compatible between units. The GNS 400W-series units
must use a WAAS enabled database.

NOTE: This product, its packaging, and its components
contain chemicals known to the State of California to
cause cancer, birth defects, or reproductive harm. This
notice is being provided in accordance with California’s
Proposition 65. If you have any questions or would like
additional information, please refer to our website at
www.garmin.com/prop65.

NOTE: It is the pilot’s responsibility for initial missed
approach guidance in accordance with published pro­cedure. The unit may not provide correct guidance until
established on a defined leg.

NOTE: GPS level of service annunciations (LPV, ENR,
etc. as shown on page 83) are not applicable to the
external CDI (or HSI) when VLOC is active.

190-00356-00 Rev D

i

INTRODUCTION

Cautions

NOTE: This device complies with Part 15 of the FCC limits for

Class B digital devices. This equipment generates, uses, and
can radiate radio frequency energy and, if not installed and

used in accordance with the instructions, may cause harmful

interference to radio communications. Furthermore, there is
no guarantee that interference will not occur in a particular

installation.

If this equipment does cause harmful interference, the user is

encouraged to try to correct the interference by relocating the

equipment or connecting the equipment to a different circuit
than the affected equipment. Consult an authorized dealer or

other qualified avionics technician for additional help if these

remedies do not correct the problem.

Operation of this device is subject to the following conditions:

(1) This device may not cause harmful interference, and (2)

this device must accept any interference received, including

interference that may cause undesired operation.

Garmin is fully committed to your

satisfaction as a customer. If you

have any questions regarding the

400W-series, please contact our

customer service department at:

To obtain accessories for your 400W-series, please contact

Help us better support you by completing our on-line registra­tion form today! Registration ensures that you will be notified
of product updates and new products and provides lost or sto-

len unit tracking. Please, have the serial number of your unit

handy, connect to our web site (www.garmin.com) and look for

The 400W-series display lenses are coated with a special anti-

reflective coating which is very sensitive to skin oils, waxes
and abrasive cleaners. It is very important to clean the lens
using an eyeglass lens cleaner which is specified as safe for

your Garmin dealer.

our Product Registration link on the home page.

anti-reflective coatings and a clean, lint-free cloth.

Garmin International, Inc.

1200 East 151st Street

Olathe, KS 66062-3426 U.S.A.

Phone: [phone]

Fax: [phone]

ii

190-00356-00 Rev D

INTRODUCTION

Accessories and Packing List

Accessories and Packing List

Congratulations on choosing the world’s finest
panel-mounted IFR navigation/communication system!
The 400W-series represents Garmin’s continued com­mitment to providing you with the most advanced
technology available today — in an accurate, easy-to­use design suitable for all of your flying needs.

Unless otherwise specified within this manual,
the term "
GNC 420W, GNC 420AW, GNS 430W, and GNS
430AW models. Please note that the difference
between these models is indicated in the Specifi­cations section of this manual (see Appendix B).

400W-series

" applies to the GPS 400W,

Before installing and getting started with your new
system, please ensure that your package includes the
following items. If any parts are missing or are dam­aged, please contact your Garmin dealer.

Standard Package:

• Garmin400W-seriesUnit

• NavData® Card

• TerrainCard

• GPSAntenna

• InstallationRack&Connectors

• Pilot’sGuide

and configuration of your new 400W-series unit. After
installation, the NavData
into the correct slot on the front of the unit (see
Appendix A). The 400W-series will be secured in the
installation rack with the proper wiring connections.
Have your dealer answer any questions you may have
about the installation — such as location of antennas
or any connections to other equipment in the panel.

• QuickReference

• 400W/500WSeriesDisplayInterfaces

Addendum

• 400W/500WSeriesGarminOptionalDisplay
Interfaces Addendum

• GNS400W/500W-series Simulator Training
CD-ROM

• Database Subscription Packet

• WarrantyRegistrationCard

Upgrade Package:

• Garmin400W-seriesUnit

• NavData

®

Card

• TerrainCard(optional)

• GPSAntenna

• Pilot’sGuide&Reference

• QuickReference

• 400W/500WSeriesDisplayInterfaces

Addendum

• 400W/500WSeriesGarminOptionalDisplay
Interfaces Addendum

• GNS400W/500W-series Simulator Training
CD-ROM

• DatabaseSubscriptionPacket

• WarrantyRegistrationCard

Your Garmin dealer will perform the installation

®

card will already be installed

190-00356-00 Rev D

iii

INTRODUCTION

Warranty

Limited Warranty

This Garmin product is warranted to be free from defects in materials or workmanship for two years from the
date of purchase. Within this period, Garmin will, at its sole option, repair or replace any components that fail in
normal use. Such repairs or replacement will be made at no charge to the customer for parts and labor, provided
that the customer shall be responsible for any transportation cost. This warranty does not cover failures due to
abuse, misuse, accident, or unauthorized alterations or repairs.

THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL
OTHER WARRANTIES EXPRESS OR IMPLIED OR STATUTORY, INCLUDING ANY LIABILITY ARISING UNDER
ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, STATUTORY OR
OTHERWISE. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, WHICH MAY VARY FROM STATE TO
STATE.

IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT OR CONSE-

QUENTIALDAMAGES,WHETHERRESULTINGFROMTHEUSE,MISUSE,ORINABILITYTOUSETHIS

PRODUCT OR FROM DEFECTS IN THE PRODUCT. Some states do not allow the exclusion of incidental or
consequential damages, so the above limitations may not apply to you.

Garmin retains the exclusive right to repair or replace the unit or software, or to offer a full refund of the pur­chase price, at its sole discretion. SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY
BREACH OF WARRANTY.

To obtain warranty service, contact your local Garmin Authorized Service Center. For assistance in locating
a Service Center near you, visit the Garmin Web site at “http://www.garmin.com” or contact Garmin Customer
Service at 800-800-1020.

iv

190-00356-00 Rev D

INTRODUCTION

Table of Contents

Contents

Introduction .................................................................................................i

Cautions ..............................................................................................i

Accessories and Packing List .......................................................... iii

Limited Warranty .............................................................................iv

Model Descriptions ..........................................................................1

GPS 400W ................................................................................1

GNC 420W/420AW ..................................................................1

GNS 430W/430AW ...................................................................1

Takeoff Tour ................................................................................................1

Key and Knob Functions ..................................................................2

Left-hand Keys and Knobs .........................................................2

Right-hand Keys and Knobs.......................................................3

Bottom Row Keys ......................................................................4

Power On ...........................................................................................5

Powering up the 400W-Series Unit.................................................5

Instrument Panel Self-Test ...............................................................6

Fuel On Board and Checklists .........................................................7

Acquiring Satellites/Messages ........................................................8

Selecting COM and VLOC Frequencies ...........................................9

Page Groups ....................................................................................10

Nav Pages ........................................................................................12

Default Nav Page ............................................................................13

Map Page .........................................................................................14

NavCom Page ..................................................................................15

Direct-To Navigation ......................................................................16

IFR Procedures ................................................................................17

Nearest (NRST) Pages .....................................................................18

Nearest Airport .......................................................................19

Nearest Airspace Page ...................................................................20

Flight Plans ......................................................................................21

Section 1 - COM - Communicating Using the GNC 420W/AW and

GNS 430W/AW ...........................................................................................23

Volume .............................................................................................23

Squelch .............................................................................................23

COM Window and Tuning ...............................................................24

Auto-Tuning .....................................................................................25

Emergency Channel ........................................................................27

Stuck Microphone ...........................................................................27

Remote Frequency Selection Control ...........................................28

Section 2 NAV Pages ..............................................................................29

Main Page Groups ..........................................................................29

NAV Page Group .............................................................................29

Default NAV Page ...........................................................................30

Selecting Desired On-Screen Data............................................31

Restoring Factory Settings .......................................................32

Dual Unit Considerations ........................................................32

Map Page .........................................................................................32

190-00356-00 Rev D

Map Symbols ..........................................................................33

Map Range .............................................................................33

Map Page Auto Zoom .............................................................34

Map Panning ..........................................................................35

Map Direct-To .........................................................................36

Airspace Information on the Map ............................................36

Map Page Options ..........................................................................37

Map Setup ..............................................................................37

Data Fields on the Map ...........................................................40

Selecting Desired On-Screen Data............................................40

Restoring Factory Settings .......................................................41

Terrain Operation ............................................................................41

Operating Criteria ...................................................................41

Terrain Limitations ..................................................................41

TERRAIN Alerting ....................................................................42

Baro-Corrected Altitude ..........................................................42

Terrain Page ...........................................................................42

Inhibit Mode ...........................................................................43

Terrain Symbols .......................................................................44

General Database Information .................................................45

Database Versions ...................................................................45

Database Updates ..................................................................45

Terrain/Obstacle Database Areas of Coverage ..........................46

Navigation Database ..............................................................46

TERRAIN Alerts ................................................................................46

Pop-up Alerts ..........................................................................46

Forward Looking Terrain Avoidance .........................................47

Premature Descent Alerting (PDA) ...........................................48

TERRAIN Failure Alert ..............................................................48

“TERRAIN Not Available” Alert ................................................49

NAVCOM Page .................................................................................51

Position Page ...................................................................................52

Restoring Factory Settings ............................................................54

Satellite Status Page ......................................................................55

Vertical Navigation Page ...............................................................56

Dead Reckoning ..............................................................................59

Section 3 Direct-To Navigation ...........................................................61

Selecting a Direct-To Waypoint by Facility Name or City ..........62

Selecting a Direct-To Waypoint from the Active Flight Plan .....63

Selecting the Nearest Airport as a Direct-To Waypoint .............63

Shortcuts ..........................................................................................64

Cancelling Direct-To Navigation ...................................................65

Specifying a Course to a Waypoint ...............................................65

Selecting Direct-To a Holding Pattern ..........................................66

Section 4 Flight Plans .............................................................................67

Flight Plan Catalog .........................................................................67

Flight Plan Catalog Editing ............................................................67

Flight Plan Catalog Options ..........................................................68

v

INTRODUCTION

Activating Flight Plans .............................................................68

Inverting Flight Plans ..............................................................69

Create a new flight plan ..........................................................69

Crossfill ..................................................................................70

Copying Flight Plans ...............................................................70

Deleting Flight Plans ...............................................................70

Deleting All Flight Plans ..........................................................71

Sort List By Number?/Sort List by Comment? ..........................71

Active Flight Plan Page ..................................................................72

Active Flight Plan Options .............................................................72

Activate Leg ............................................................................72

Crossfill ..................................................................................73

Copy Flight Plan......................................................................73

Invert Flight Plan .....................................................................73

Delete Flight Plan....................................................................73

Select Approach ......................................................................73

Select Arrival ...........................................................................74

Select Departure .....................................................................75

Remove Approach, Arrival, or Departure ..................................75

Closest Point of FPL ................................................................75

Parallel Track ...........................................................................76

Change Fields .........................................................................77

Restore Defaults .....................................................................77

Shortcuts ..........................................................................................78

Flight Plan Transfer Feature (optional with software V 3.20 or

later) ................................................................................................80

Section 5 - Procedures - Approaches, Departures, & Arrivals .......83

Basic Approach Operations ...........................................................85

Approaches with Procedure Turns ................................................86

Flying the Procedure Turn ..............................................................87

Flying the Missed Approach ..........................................................90

Flying an Approach with a Hold ....................................................91

Flying a DME Arc Approach ...........................................................94

Vectors to Final ...............................................................................97

Flying the Vectors Approach ..........................................................98

Course From Fix Flight Plan Legs ................................................100

ILS Approaches ..............................................................................104

Selecting an ILS Approach .....................................................105

Flying the ILS Approach .........................................................106

Selecting an LPV Approach ..........................................................109

Flying the LPV Approach .......................................................110

RNAV Approach Procedures.........................................................112

Points to Remember for All Approaches ....................................112

Points to Remember for Localizer or VOR-based Approaches 113

Enabling Autopilot Outputs for the King KAP140/KFC225 ......114

Section 6 WPT Pages ............................................................................115

WPT Page Group ...........................................................................115

Duplicate Waypoints.....................................................................117

Airport Runway Page ...................................................................119

Airport Frequency Page ...............................................................120

Airport Approach Page .................................................................122

Airport Arrival Page ......................................................................124

Airport Departure Page................................................................125

Intersection Page ..........................................................................127

NDB Page .......................................................................................127

VOR Page .......................................................................................128

User Waypoint Page ......................................................................129

Creating User Waypoints .............................................................129

Creating User Waypoints from the Map Page ...........................131

Modifying User Waypoints...........................................................131

User Waypoint Page Options .......................................................132

User Waypoint List ........................................................................133

Section 7 NRST Pages ..........................................................................135

NRST Page Group ..........................................................................135

Navigating to a Nearby Waypoint ..............................................137

Nearest Airport Page ....................................................................137

Nearest Intersection Page ...........................................................139

Nearest NDB Page ........................................................................139

Nearest VOR Page .........................................................................139

Nearest User Waypoint Page .......................................................140

Nearest Center (ARTCC) Page ......................................................140

Nearest Flight Service Station (FSS) Page .................................141

Nearest Airspace Page .................................................................142

Section 8 VLOC (VOR/Localizer/Glideslope) Receiver Operations ...

...........................................................................................................147

Ident Audio and Volume ...............................................................147

VLOC Window and Tuning ............................................................147

CDI Key ...........................................................................................150

Section 9 AUX Pages ............................................................................151

AUX Page Group............................................................................151

Flight Planning Page .....................................................................152

Fuel Planning ........................................................................153

Trip Planning.........................................................................155

Density Alt / TAS / Winds .......................................................156

Crossfill Operation ................................................................157

Scheduler .............................................................................159

Utility Page ....................................................................................160

Checklists

.............................................................................162

Flight Timers .........................................................................163

Trip Statistics ........................................................................164

RAIM Prediction ....................................................................165

Sunrise / Sunset ....................................................................166

Software / Database Versions ................................................166

Setup 1 Page .................................................................................167

Airspace Alarms ....................................................................169

CDI Scale / Alarms.................................................................170

vi

190-00356-00 Rev D

Units / Mag Var .....................................................................171

Position Format .....................................................................172

Map Datum .........................................................................172

Date / Time ...........................................................................172

Restoring Factory Settings .....................................................173

Setup 2 Page .................................................................................173

Display .................................................................................175

Nearest Airport Criteria .........................................................176

SBAS Selection ......................................................................176

Restoring Factory Settings .....................................................177

Section 10 Fault Detection & Exclusion ...........................................178

Detection and Exclusion ..............................................................178

Section 11 Messages, Abbreviations, and Navigation Terminology

...........................................................................................................179

Messages .......................................................................................179

Turn Advisory and Arrival Annunciations ...................................185

Flight Plan Transfer Messages .....................................................186

Abbreviations ................................................................................187

Navigation Terms ..........................................................................191

Appendix A NavData Card Use ..........................................................193

Appendix B Specifications ..................................................................194

Appendix C Troubleshooting Q&A ....................................................195

Index .........................................................................................................201

INTRODUCTION

190-00356-00 Rev D

vii

INTRODUCTION

Blank Page

viii

190-00356-00 Rev D

INTRODUCTION

Model Descriptions

Model Descriptions

This guide covers the operation of the GPS 400W,
GNC 420W, GNC 420AW, GNS 430W, GNS 430AW.
In general, all models will be referred to as the 400W-
series, except where there are physical or operational
differences. The 400W-series units are 6.25” wide and

2.66” high. The display is a 240 by 128 pixel color LCD.
The units include two removable data cards, one with
a Jeppesen database (inserted in the left-most card slot)
and the second being a Terrain database (inserted in the
right-most card slot).

GPS 400W

The GPS 400W has a WAAS GPS engine and is TSO

GDL 69/69A datalink receiver.

GNC 420W/420AW

The GNS 430W/AW includes all of the features of
the GPS 400W, and also includes TSO’d airborne VHF
communications transceiver. This multipurpose unit is
available with either a 10-watt (GNS 420W) or 16-watt
28 V dc (GNS 420AW) COM.

GNS 430W/430AW

The GNS 430W/AW includes all of the features of the
GPS 420W/420AW, and also includes
VOR/Localizer and Glideslope receivers. This multipur­pose unit is available with either a 10-watt (GNS 430W)
or 16-watt 28 V dc (GNS 430AW) COM.

C146a certified for primary domestic, oceanic, and
remote navigation including en route, terminal, and
non-precision approaches, and approaches with vertical
guidance, such as LPV and LNAV/VNAV. The GPS 400W
can simultaneously give aviators vital approach infor­mation and weather and traffic data in relation to their
position on a color moving map display. Thanks to a
high-contrast color display, the information can be easily
read from wide viewing angles even in direct sunlight. Its
color moving map features a built-in database that shows
cities, highways, railroads, rivers, lakes, coastlines, and a
complete Jeppesen database. The huge Jeppesen database
(that can be updated with a front-loading data card)
contains all airports, VORs, NDBs, Intersections, FSS,
Approach, DPs/STARs, and SUA information.

Pilots will enjoy the GPS 400W as an MFD, especially
when it is coupled with traffic, lightning detection, and
weather interfaces like Ryan TCAD, TIS from the Garmin
GTX 330 Mode S transponder, or L3 SKYWATCH™, or
STORMSCOPE

®

WX 500. With the PC-based FDE pre­diction program, the GPS 400W may be used for oceanic
or remote operations. For the latest in graphical and
textual weather information, the GPS 400W can connect
to XM Satellite Radio’s XM WX Weather Service via the

This Takeoff Tour is intended to provide a brief
introduction of the 400W-series major features. The
rest of this manual describes these features, and others,
in additional detail. Use this guide, as needed, to learn
or review the details regarding a particular feature. The
Index may be used to quickly locate the information
you want. Before flying with your 400W-series unit, take
the time to review the information in the manuals and
practice with the trainer.

After you’re familiar with the basics, some suggested
reading within the Reference section includes:

•Flightplanfeatures-Section4

•Waypointinformationpages(databaseinformation)

- Section 6

•IFRprocedures-Section5

•Unitsettings(conguringtheunittoyourprefer-

ences) - Section 9

If you’re unable to locate the information you need,
we’re here to help! Garmin’s Customer Service staff is
available during normal business hours (U.S. Central
time zone) at the phone and fax numbers listed on page
ii. You can also reach us by mail (see page ii) or at our
web site address: www.garmin.com.

Takeoff Tour

TSO’

d airborne

190-00356-00 Rev D

1

TAKEOFF TOUR

Key and Knob Functions

Key and Knob Functions

The 400W-series unit is designed to make operation
as simple as possible. The key and knob descriptions on
the next three pages provide a general overview of the
primary function(s) for each key and knob. This Takeoff
Tour section is intended to provide a brief overview of
the primary functions of your 400W-series unit. Experi­ment with the unit and refer to the Reference sections
for more information.

Left-hand Keys and Knobs

GPS 400W

GNC 420W/AW GNS 430W/AW

Left-hand Keys and Knobs

The small left knob (COM/VLOC)

f

W

V

(420W/430W only) is used to tune the kilo­hertz (kHz) value

of the standby frequency for the com-

point)
munications transceiver (COM) or the VLOC
receiver, whichever is currently selected by the
tuning cursor. Press this knob momentarily
to toggle the tuning cursor between the COM
and VLOC frequency fields.

The COM flip-flop key (420W/430W only)

is used to swap the active and standby COM
frequencies. Press and hold to select emer­gency channel (121.500 MHz).

The VLOC flip-flop key (430W only) is

used to swap the active and standby VLOC
frequencies (i.e., make the selected standby
frequency active).

(to the right of the decimal

The COM power/volume knob (420W/430W

k

j

h

2

only) controls unit power and communications
radio volume. Press momentarily to disable
automatic squelch control. In the GPS 400W,
this control is used only for power.

The VLOC volume knob (430W only)

controls audio volume for the selected VOR/
Localizer frequency. Press momentarily to
enable/disable the ident tone.

The large left knob (COM/VLOC)

(420W/430W only) is used to tune the mega­hertz (MHz) value (to the left of the decimal
point) of the standby frequency for the com­munications transceiver (COM) or the VLOC
receiver, whichever is currently selected by
the tuning cursor.

190-00356-00 Rev D

TAKEOFF TOUR

Key and Knob Functions

Right-hand Keys and Knobs

Right-hand Keys and Knobs

R

D

The range key (RNG) allows you to select

the desired map scale. Use the up arrow side
of the key to zoom out to a larger area, or
the down arrow side to zoom in to a smaller
area.

The direct-to key provides access to the

direct-to function, which allows you to enter
a destination waypoint and establishes a
direct course to the selected destination. See
Section 3.

The enter key (ENT) is used to approve an

E

d

a

operation or complete data entry. It is also
used to confirm information, such as during
power on.

The large right knob is used to select

between the various page groups: NAV, WPT,
AUX or NRST. With the on-screen cursor
enabled, the large right knob allows you to
move the cursor about the page.

The small right knob (CRSR) is used to

select between the various pages within one
of the groups listed above. Press this knob
momentarily to display the on-screen cursor.
The cursor allows you to enter data and/or
make a selection from a list of options.

The MENU key displays a context-sensitive

m

c

list of options. This options list allows you
to access additional features or make settings
changes which relate to the currently dis­played page.

The clear key (CLR) is used to erase infor-

mation or cancel an entry. Press and hold
this key to immediately display the Default
Navigation Page, regardless of which page is
currently displayed.

190-00356-00 Rev D

3

TAKEOFF TOUR

Key and Knob Functions

Bottom Row Keys

N

The nearest (NRST) key (400W/420W
only) displays the nearest airports page.
Then, turning the small right knob steps
through the NRST pages.

GPS 400W / GNC 420W

C

O

M

F

The CDI key (430W only) is used to toggle
which navigation source (GPS or VLOC) pro­vides output to an external HSI or CDI.

The OBS key is used to select manual or
automatic sequencing of waypoints. Pressing
the OBS key selects OBS mode, which will
retain the current “active to” waypoint as
your navigation reference even after pass­ing the waypoint (i.e., prevents sequencing
to the next waypoint). Pressing the OBS
key again will return to normal operation,
with automatic sequencing of waypoints.
Whenever OBS mode is selected, you may set
the desired course to/from a waypoint using
the OBS Page, or an external OBS selector on
your HSI or CDI.

The message key (MSG) is used to view
system messages and important warnings and
requirements. See Sections 11 and 9 for more
information on messages and unit settings.

The flight plan key (FPL) allows you to
create, edit, activate and invert flight plans,
as well as access approaches, departures and
arrivals. A closest point to flight plan feature
is also available from the flight plan key. See
Section 4 for more information on flight
plans.

GNS 430W

Whenever the 400W-series unit is dis­playing a list of information that is too
long for the display screen, a scroll bar

will appear along the right-hand side

of the display. The scroll bar graphically

indicates the number of additional items

available within the selected category.

Simply press the small right knob to

activate the cursor and turn the large

right knob to scroll through the list.

The procedures key (PROC) allows you to

P

select and remove approaches, departures
and arrivals from your flight plan. When
using a flight plan, available procedures for
your departure and/or arrival airport are
offered automatically. Otherwise, you may
select the desired airport, then the desired
procedure.

scroll bar

}

4

190-00356-00 Rev D

TAKEOFF TOUR

Power On

Power On

Powering up the 400W-Series Unit

The Garmin 400W-series provides you accurate
navigational data and some models also have com­munication capability, along with non-precision and
precision approach certification in the IFR environ­ment. The Takeoff Tour is designed to familiarize you
with the operation of the 400W-series — including
powering up the unit, changing frequencies, entering
data, performing a simple direct-to, selecting IFR pro­cedures and provides a limited introduction to using
flight plans. In addition, this section briefly covers the
default navigation, map and frequency pages available
as part of the NAV page group. These pages will be
used for most of your in-flight navigation.

The Takeoff Tour assumes that the unit and anten­nas have been properly installed and you have not

are controlled using the power/volume knob at the
top left corner of the unit. The 400W power knob
is located at the top left corner of the unit. Turning
it clockwise will turn unit power on and increase
the COM radio volume. After turning the unit on, a
welcome page will be displayed while the unit performs
a self test, followed by the database confirmation pages
which show the current database information on the
NavData card (with the valid operating dates, cycle
number and database type indicated). The database
is updated every 28 days, and must be current for
approved instrument approach operations. Informa­tion on database subscriptions is available inside your

400W-series package.
changed any of the 400W-series unit default settings.
If you have changed any of the factory default settings
(position format, units of measure, selectable fields,
etc.), the pictures shown here may not exactly match
what you see on your 400W-series unit. Prior to using
your unit for the first time, we recommend that you
taxi to a location that is well away from buildings
and other aircraft so the unit can collect satellite data
without interruption.

The 420W and

To acknowledge the database information, press
ENT.

430W

power and COM volume

Power-up Sequence

190-00356-00 Rev D

5

TAKEOFF TOUR

Instrument Panel Self-Test

Check CDI/HSI,

RMI and other

instruments

to verify these

indications

Instrument Panel Self-Test

Once the database has been acknowledged, the
instrument panel self-test page will appear. To ensure
that your 400W-series unit and any connected instru­ments are working properly, check for the following
indications on your CDI/HSI, RMI, external annuncia­tors and other connected instruments:

•Coursedeviation

•Glideslope

•TO/FROMag

•Timetodestination

•Bearingtodestination

•Desiredtrack

•Distancetodest.

•Groundspeed

•Allexternalannunciators(ifinstalled)

{

Should match current

OBS course selection

Fuel Figures: May be

entered manually if no

}

Select to display

Checklists Page

To enter fuel capacity, fuel on board or fuel flow
figures (if not provided by sensors):

1. Turn the large right knob to select the “CAP”,

“FOB” or “FF” field.

2. Turn the small and large right knobs to enter
the desired figure, then press ENT.

sensor present

Select to Set Fuel Level

to Full Capacity

The instrument panel self-test page indicates the cur­rently selected OBS course, fuel capacity (CAP), fuel
on board (FOB) and fuel flow (FF). The fuel capacity,
fuel on board and fuel flow may be manually entered
if your installation does not include connection to sen­sors which automatically provide these figures.

6

190-00356-00 Rev D

Enter the fuel capacity, fuel on board or fuel

flow figures directly onto the appropriate

field of the instrument panel self-test page.

These figures will automatically be provided

if your installation includes connection to

external sensors.

TAKEOFF TOUR

Fuel On Board & Checklists

Fuel On Board and Checklists

The instrument panel self-test page includes selec­tions to set fuel on board (FOB) to full capacity and
access the checklists page. This allows you to quickly
set fuel to full limits and display any checklists you’ve
entered, such as start up or takeoff checklists.

To set fuel on board to full (if not provided by
sensor):

1. Turn the large right knob to highlight “Set

Full Fuel?”.

Select “Set Full Fuel?” to set fuel on board

(FOB) to full capacity.

2. Press ENT and verify that fuel on board

(“FOB”) now matches the fuel capacity (CAP)
figure. Fuel on board will now be reduced, over
time, based on the fuel flow (FF) figure.

To view the checklists page:

1. Turn the large right knob to highlight “Go To
Chklist?” and press ENT.

Select “Go To Chklist?” to display the check-

list page and any available checklists. The

400W-series unit can hold up to nine check-

lists with up to 30 entries in each checklist.

2. Turn the large right knob to select the desired
checklist, then follow the steps in Section 9

- Aux Pages - Utility Page to execute each
step in the selected checklist.

3. Once you complete the desired checklist(s),
press the small right knob to return to the
checklists page. Press the small right knob
again to return to normal operation on the
satellite status or map pages.

Once you’ve verified instrument operation with
the instrument panel self-test page displayed,
press the ENT key.

The satellite status page will appear as the 400W­series unit begins to collect satellite information. An
“Acquiring” status will be displayed on the satellite
status page, and the signal strength of any satellites
received will appear as “bar graph” readings. This is
a good indication that you are receiving signals and a
position fix will be determined. Following the first­time use of your 400W-series unit, the time required
for a position fix will vary—within two minutes.

190-00356-00 Rev D

7

TAKEOFF TOUR

Acquiring Satellites / Messages

Acquiring Satellites/Messages

If the 400W-series unit has not been operated for a
period of six months or more, it may have to “Search
the Sky” to collect new data. This means the unit is
acquiring satellite data to establish almanac and satel­lite orbit information, which can take 5 to 10 minutes.
The Satellite Status Page displays a “Searching Sky”
status, and the message annunciator (MSG) above the
MSG key also flashes to alert you of a system message,
“Searching the Sky”.

The satellite status page shows the ID num­bers for the satellites and the relative signal
strength of each satellite received (as a “bar

graph” reading.

The Time and other data may not be displayed

until the unit has acquired enough satellites for a fix.

To view a system message, press the MSG key.

Message Page

The message page will appear and display the status
or warning information applicable to the receiver’s cur­rent operating condition.

To return to the previous page after viewing a
message, press the MSG key again.

“Searching Sky” indicates that satellite almanac
data is not available. The data is recollected from the
first available satellite.

“Acquiring” indicates that satellites have been
located and information is being acquired, but the
receiver does not have enough satellites for a 3-dimen­sional position.

“3D NAV” indicates that a 3-dimensional position
is available.

“3D DIFF NAV” indicates when a 3-dimensional
position is available and differential corrections are
being used.

The “INTEG” annunciator (bottom left corner of
the screen) indicates that satellite coverage is insuffi­cient to pass built-in integrity monitoring tests.

8

190-00356-00 Rev D

TAKEOFF TOUR

420W / 430W Only

Selecting COM and VLOC Frequencies

While the 400W-series unit is acquiring a position,
let’s take a minute to dial in the active and standby
frequencies you’ll be using for the first phase of your
flight. The

400W-series

display is divided into separate

“windows” (or screen areas), including a COM window,

repeat steps 1 through 3, above, to enter the standby
frequency. After both communication frequencies have
been entered, you may elect to keep the COM window
‘hot’ by leaving the cursor on the standby frequency, or
move the cursor to the VLOC window by pressing the
small left knob.

VLOC window, and the GPS window.

COM Window:

Active Frequency

VLOC Window:

Active Frequency

COM Window:

Standby Frequency

with tuning cursor

repeat steps 1 to 3, above, to enter the standby fre­quency. After both communication frequencies have
been entered, you may elect to keep the COM window
“hot” by leaving the cursor on the standby frequency,
or move the cursor to the VLOC window by pressing

Pushing the small left knob activates the tuning

the small left knob.
cursor in the desired frequency window. To select the
active frequency, you must first enter the frequency
in the standby field, and use the COM flip-flop (or
VLOC flip-flop) key to move it to the active field.

To change the standby communication (COM) or
VLOC frequency:

1. If the tuning cursor is not currently in the
desired window (COM or VLOC), press the
small left knob momentarily to switch the
highlight between the COM and VLOC win-

units.

dows. Adjusting the frequencies with the large
and small left knobs will affect the standby
frequency.

2. Turn the large left knob to select the desired
megahertz (MHz) value. For example, the
“135” portion of the frequency “135.325”.

3. Turn the small left knob to select the desired
kilohertz (kHz) value. For example, the “.325”
portion of the frequency “135.325”.

Selecting COM and VLOC Frequencies

Once you’ve entered the active frequency, simply

Once you’ve entered the active frequency, simply

NOTE: When selecting VLOC frequencies, the
tuning cursor automatically returns to the COM
window after 30 seconds of inactivity.

NOTE: GPS level of service annunciations (LPV,
ENR, etc. as shown on page 83) are not appli­cable to the external CDI (or HSI) when VLOC is
active.

These features are only available in the 420W/430W

4. To activate the selected frequency, press the
appropriate flip-flop key—COM for commu­nication frequencies or VLOC for VOR/Localizer
frequencies.

190-00356-00 Rev D

9

TAKEOFF TOUR

Page Groups

Page Groups

(Large right knob to change page groups)

d

a

(Small right knob to select pages within the group)

NAV Group

Default NAV

Map

Terrain

NAVCOM

Arpt Location

Arpt Runway

Arpt Frequency

Arpt Approach

WPT Group

Arpt Departure

Intersection

NDB

VOR

Position

Arpt Arrival

Satellite Status

VNAV

Selection of any main page is performed using the large and small right knobs. The large right knob selects the page group: NAV, WPT, AUX or

NRST. The small right knob selects the desired page within a group. To quickly select the default NAV page, press and hold the CLR key.

10

190-00356-00 Rev D

User Waypoint

TAKEOFF TOUR

Page Groups

a

(Large right knob to select pages with the group)

AUX Group

Flight Planning

Utility

Setup 1

Setup 2

(Large right knob to change page groups)

d

Nrst Airport

Nrst Intersection

Nrst NDB

Nearest VOR

NRST Group

Nrst User Waypnt

Nrst Center

Nrst Flight Service

Nrst Airspace

FPL Group

Flight plan pages are selected by pressing the
FPL key and using the small right knob to
select the desired page.

Active Flight Plan Flight Plan Catalog

The Procedures pages are selected by pressing the
PROC key and using the small or large right knobs
to select a procedure.

190-00356-00 Rev D

PROC Group

Procedure

11

TAKEOFF TOUR

Nav Pages

Nav Pages

The map page is one of seven, or more, pages avail-

able under the NAV group*:

•DefaultNAVpage •Mappage

•Terrainpage •NAVCOMpage

•Positionpage •Satellitestatuspage

•Verticalnavigationpage

To select the desired NAV page, turn the small
right knob until the desired page is displayed.

If you are currently viewing a page that is not part
of the NAV group, you can quickly return to the NAV
group using the CLR key.

To select the NAV group and display the default
NAV page, press and hold CLR.

NAV

7+ available pages*

(see list above)

AUX

4 available pages

(see Section 9)

MAIN PAGE GROUPS

WPT

10 available pages

(see Section 6)

NRST

8 available pages

(see Section 7)

In addition to the NAV group of pages, additional
groups of pages are available for waypoint information
(WPT), auxiliary (AUX) functions such as flight plan­ning or unit settings, and listings for nearest (NRST)
airports or other facilities.

The bottom right corner of the screen

indicates the page group currently being

displayed (e.g., NAV or NRST), the number

of screens available within that group

(indicated by square icons) and the place-

ment of the current screen within that group

(indicated by a highlighted square icon). To

select a different page within the group, turn

the small right knob.

* Seven, or more, NAV Pages are avail-

able when the 400W-series installation

includes connection to traffic, XM radio,

and/or weather information sources. See the

400W/500W Series Display Interfaces Pilot’s

Guide Addendum, part number

190-00356-31 and the 400W/500W Series

Garmin Optional Displays Pilot’s Guide Ad-

dendum, part number 190-00356-30.

To select the desired page group, turn the large
right knob until a page from the desired group is
displayed.

To select the desired page within the group, turn
the small right knob until the desired page is
displayed.

12

190-00356-00 Rev D

TAKEOFF TOUR

Default Nav Page

Default Nav Page

During most flights, the default NAV, map and
NAVCOM pages will be the primary pages used for

navigation. The default NAV page displays a graphic
course deviation indicator (CDI), the active leg of
your flight plan (as defined by the current “from” and
“to” waypoints), and six user-selectable data fields.
The default settings for these fields are distance to
waypoint (DIS), desired track (DTK), bearing to
waypoint (BRG), ground speed (GS), ground track
(TRK) and estimated time en route (ETE). See Sec­tion 11 for definitions of these navigation terms. The
default NAV page is selected by pressing and holding
the CLR key or turning the small right knob.

Active Leg of

Flight Plan

Course Deviation Indicator (CDI)

User-

selectable

Data Fields

To change the data fields in the corners of the
Default NAV Page:

1. Press MENU (with the Map Page displayed).

2. Turn the large right knob to highlight
“Change Fields?” and press ENT.

3. Turn the large right knob to highlight the
data field you wish to change.

4. Turn the small right knob to select the type
of data you want to appear on this field and
press ENT.

Default NAV Page

5. Press the small right knob to remove the

190-00356-00 Rev D

cursor.

13

TAKEOFF TOUR

Map Page

Map Page

The map page displays your present position (using
an airplane symbol) relative to nearby airports, VORs,
NDBs, intersections, user waypoints and airspace
boundaries—and your route displayed as a solid line.
Data fields for destination waypoint (WPT), distance
to waypoint (DIS), desired track (DTK) and ground
speed (GS) appear on the right hand side of the
display. These fields are user-selectable to allow you to
configure the unit to your own preferences. Available
settings include: altitude, bearing, en route safe alti­tude, estimated time of arrival, minimum safe altitude,
and ground track. See Section 11 for definitions of
these navigation terms.

Map Display

Data

Fields

The map page combines a moving map

display and navigation data for complete

situational awareness. Map setup pages
are provided to designate the maximum
scale at which each map feature will ap-

pear. These settings provide an automatic

decluttering of the map (based upon your

preferences) as you adjust the scale.

While viewing the map page, you can

quickly declutter and remove many of

the background map details by pressing

the CLR key (repeatedly) until the desired

detail is depicted.

Scale with

14

Map

declutter

value

Present

Position

Map Page

To change the map scale, press the  or 

sides of the RNG key.

Desired Track

190-00356-00 Rev D

TAKEOFF TOUR

NAVCOM Page

NavCom Page

From the default NAV page, simply turn the small
right knob to display the map page and again to dis-

play the NAVCOM page. The NAVCOM page displays
the available frequencies (communications and naviga­tion) for the departure airport, any en route airports
that are included in your flight plan, and the final
destination airport. When using the direct-to function,
frequencies will be listed for the airport nearest to your
starting position and the destination airport.

A frequency listed on the NAVCOM page can be
quickly transferred to the standby field of the COM
or VLOC windows. This time-saving process prevents
having to “re-key” a frequency already displayed else­where on the screen.

To display the frequency list for the active flight
plan or direct-to airport:

1. In the Nav function, turn the small right knob

to reach the NAVCOM page.

2. Push the small right knob to activate the

cursor on the airport identifier field (in the
GPS window). Turn the small right knob to
display the list of airports (departure, arrival
and en route) for your flight plan or direct-to.
Continue to turn the small right knob until
the desired airport is selected.

To select a communication or navigation fre­quency:

1. On the NAVCOM page, push the small right

knob to activate the cursor in the GPS win­dow.

2. Turn the large right knob to select the desired

frequency from the list.

Selecting a frequency on the NAVCOM page.

3. Press ENT to transfer the selected frequency to

the standby field in the COM or VLOC window.
COM frequencies will automatically go to the
standby field of the COM window and navigation
frequencies will automatically go to the standby
field of the VLOC window, regardless of which
window is currently highlighted by the cursor.

4. To activate the selected frequency, press the

COM flip-flop (or VLOC flip-flop) key.

3. Press ENT to display the frequency list for the

selected airport.

Press ENT to show the frequencies for the

selected airport.

190-00356-00 Rev D

Swap the standby COM frequency into the

active Com frequency location.

15

TAKEOFF TOUR

Direct-To Navigation

Direct-To Navigation

The

400W-series unit

can use direct point-to-point
navigation to guide you from takeoff to touchdown,
even in the IFR environment. Once a destination
is selected, the unit will provide speed, course and
distance data based upon a direct course from your
present position to your destination. A destination can
be selected from any page with the direct-to key.

Destination

Waypoint Identifier

Field

“Activate?”

Function Field

Select Direct-To Waypoint Page

To select a direct-to destination:

1. Press the direct-to key. The Select Direct-To

Waypoint page will appear with the destination
field highlighted. The direct-to waypoint may
also be selected by facility or city name. See
Section 3 for more information.

5. Press ENT to confirm the identifier. The “Acti-

vate?” function field will be highlighted.

Confirm the selected direct-to destination by

highlighting “Activate?” and pressing ENT.

6. Press ENT to activate a direct-to course to the

selected destination.

Once a direct-to destination is selected,

press and hold CLR to display the default

NAV page.

You can then press and hold the CLR key to

return to the default NAV page, as desired.

2. Turn the small right knob to enter the first

letter of the destination waypoint identifier. The
destination waypoint may be an airport, VOR,
NDB, intersection or user waypoint, as long as
it is in the database or stored in memory as a
user waypoint.

3. Turn the large right knob to the right to move

the cursor to the next character position.

4. Repeat steps 2 and 3 to spell out the rest of
the waypoint identifier.

16

190-00356-00 Rev D

TAKEOFF TOUR

IFR Procedures

IFR Procedures

Once the direct-to or flight plan is confirmed, the
whole range of instrument procedures is available to
you. Departures (SIDs), arrivals (STARs), non-preci­sion and precision approaches are stored within the
NavData card and available using the PROC (proce­dures) key.

To display the procedures page, press PROC.

The steps required to select and activate an
approach, departure or arrival are identical. In this
introductory section, we’ll show examples of the steps
required to select an approach, but keep in mind the
same process also applies to departures and arrivals.

To select an approach, departure, or arrival:

1. Turn the small right knob to select the desired

option (“Select Approach?”, “Select Arrival?”
or “Select Departure?”) from the procedures
page.

4. For approaches, a window appears to select the
desired initial approach fix (IAF) or provide a
“vectors” option to select just the final course
segment of the approach. Turn the small right
knob to select the desired option and press
ENT. Vectors guidance is relative to the final
inbound course. A line is drawn beyond the
final approach fix, allowing you to intercept
the final course segment beyond its normal
limits.

A window will appear to select the desired

procedure. Use the large right knob to make

your selection.

5. For departures and arrivals, a window appears
to select the desired transition. Turn the small
right knob to select the desired option and
press ENT.

Press the PROC key to display the procedures

page. Turn the large right knob to select the

desired option.

2. Press ENT to display a list of available proce-

dures for the arrival (when using approaches
or STARs) or departure (when using SIDs)
airport.

3. Turn the small right knob to select the desired
procedure and press ENT.

190-00356-00 Rev D

6. With “Load?” highlighted, press ENT to add

the procedure to the flight plan or direct-to.

In your flight plan or direct-to, the departure
or arrival airport is replaced with the sequence of
waypoints contained within the selected procedure.

17

TAKEOFF TOUR

Nearest Pages

Nearest (NRST) Pages

The NRST main page groups provides listings for
nearest airports or other facilities. The NRST group
provides detailed information on the 25 nearest
airports, VORs, NDBs, intersections and user-created
waypoints within 200 NM of your current position.
In addition, pages are also provided to display the five
nearest center (ARTCC/FIR) and Flight Service Station
(FSS) points of communication, plus alert you to any
special-use or controlled airspace you may be in or
near.

The nearest airport page is one of eight pages avail­able under the NRST group:

•Nearestairportpage

•Nearestintersectionpage

•NearestNDBpage

•NearestVORpage

•Nearestuserwaypointspage

To display the NRST pages:

1. If necessary, press the small right knob to

remove the cursor from the page.

2. Turn the large right knob to select the NRST

page group, as indicated by “NRST” appearing
in the lower right corner of the screen.

To display a list of nearby airports, turn the

large right knob to select the NRST page

group and (if needed) the small right knob to

select the nearest airport page.

3. Press and then turn the large right knob to

select the desired NRST page.

•NearestARTCCpage

•NearestFSSpage

•Nearestairspacepage

18

To scroll through the list, press the small right

knob, then turn the large right knob.

190-00356-00 Rev D

TAKEOFF TOUR

Nearest Airport

Nearest Airport

You may examine both the communication
frequencies and runway information directly from
the nearest airport page. As discussed earlier for the
NAVCOM page, you may also place any displayed
frequency into the standby COM or VLOC field by
highlighting the frequency with the cursor and press­ing ENT.

To view additional information for a nearby air­port from the Nearest Airport page:

1. Press the small right knob to activate the

cursor.

2. Turn the large right knob to select the desired

airport from the list.

3. Press ENT to display waypoint (WPT) informa-

tion pages for the selected airport.

The nearest airport page may be used in conjunc­tion with the direct-to key to quickly set a course to
a nearby facility in an in-flight emergency. Selecting a
nearby airport as a direct-to destination will override
your flight plan or cancel a previously selected direct­to destination. You’ll still have the option of returning
to your flight plan by cancelling the direct-to.

To select a nearby airport as a direct-to destina-

tion:

From the nearest airport page...

1. Press the small right knob to activate the

cursor.

2. Turn the large right knob to select the desired

airport from the list.

3. Press direct-to, ENT, and ENT (again) to

navigate to the nearby airport.

Additional information for a nearby airport
is available by highlighting an identifier on

the list and pressing ENT.

4. To display runway and frequency informa-

tion, press the small right knob to remove
the cursor and turn the small right knob to
display the desired information page.

190-00356-00 Rev D

To select a nearby airport as a new destina-

tion, highlight its identifier, press direct-to

ENT, and ENT

(again).

,

From an airport information page...

1. Press direct-to, ENT, and ENT (again) to

navigate to the nearby airport.

19

TAKEOFF TOUR

Nearest Airspace

Nearest Airspace Page

The last page in the NRST group, the nearest

airspace page, provides information for up to nine

controlled or special-use airspaces near or in your
flight path. Airspace information appears on this page
based upon the same criteria used for airspace alert
messages. Nearby airspace information and airspace
alert messages are provided according to the following
conditions:

•Ifyourprojectedcoursewilltakeyouinsidean

airspace within the next ten minutes, the mes­sage “Airspace ahead -- less than 10 minutes” will
appear.

•Ifyouarewithintwonauticalmilesofanairspace

and your current course will take you inside, the
message “Airspace near and ahead” will appear.

•Ifyouarewithintwonauticalmilesofanairspace

and your current course will not take you inside,
the message “Near airspace less than 2NM” will
appear.

To view an airspace alert message:

1. Press the MSG key. The message page appears

with the alert message.

When an airspace alert occurs, the message

(MSG) annunciator will flash. Press MSG to

view the alert message.

2. Press MSG again to return to the previous

display.

To view nearest airspace information:

1. Turn the large right knob to reach the NRST

function.

•Ifyouhaveenteredanairspace,themessage

“Inside Airspace” will appear.

By default, airspace alert messages are turned off.
When turned on, the message (MSG) annunciator
located directly above the

MSG

key will flash to alert

you to the airspace message. (See Section 9 Aux Pages

- Setup 1 for information on enabling airspace alert
messages.)

20

190-00356-00 Rev D

To view additional information about the

airspace, select the nearest airspace page.

Detailed information is available by high-

lighting the airspace name and pressing ENT.

2. Turn

the small right knob to reach the Nearest
Airspace page.

Note that the airspace alerts are based upon three­dimensional data (latitude, longitude and altitude) to
avoid nuisance alerts. The alert boundaries for con­trolled airspace are also sectorized to provide complete
information on any nearby airspace. Additional infor­mation about a nearby airspace—such as controlling
agency, frequency and floor/ceiling limits—is available