Garmin GNS 480 pilot’s guide
GNS 480
color GPS/WAAS/NAV/COM
pilot’s guide
DRAFT
TM
© 2006-2008 Garmin Ltd. or its subsidiaries
Garmin International, Inc. Garmin AT
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manual 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 its products and to make changes in the content without obligation to notify any person or organization of such changes or improvements. Visit the Garmin Web site (www.garmin.com) for current updates and supplemental
information concerning the use and operation of this and other Garmin products.
Garmin®, GPSMAP®, AutoLocate®, TracBack®, Apollo, and MapSource® are registered trademarks of Garmin Ltd. or its subsidiaries and may not be used without the
express permission of Garmin.
July 2008 Garmin AT Part Number 560-0984-01 Rev. D (Garmin P/N 190-00502-00 Rev B) Printed in the USA
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 GNS
480 is a precision electronic NAVigation AID (NAVAID), any NAVAID can be misused or misinterpreted and therefore become unsafe.
CAUTION: Use the GNS 480 at your own risk. To 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 GNS 480 to 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 GNS 480 is geometric height above mean sea level
and could vary significantly from altitude displayed by pressure altimeters in aircraft. GPS accuracy may be degraded by the U.S. Department of Defense-imposed Selective Availability (SA)
programs.
WARNING: The Jeppesen database incorporated in the GNS 480 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 GNS 480 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.
Introduction
Cautions
NOTE: This device complies with Part 15 of 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.
i
Introduction
Accessories and Packing List
CAUTION: The Garmin GNS 480 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.
To obtain accessories for your GNS 480 please
contact your Garmin dealer.
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 stolen unit tracking. Please, have
the serial number of your GNS 480 handy, connect to
our web site (www.garmin.com) and look for our
Product Registration link on the home page.
The GNS 480 display lens is 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 cleaner
that is specified as safe for anti-reflective coatings
(one suitable product is Wal-Mart Lens Cleaner) and
a clean, lint-free cloth.
ii
Congratulations on choosing the world’s finest panel-mounted GPS IFR navigation/communication system
certified for primary navigation! The GNS 480 represents Garmin’s continued commitment to providing you
with the most advanced technology available today — in an accurate, easy-to-use design suitable for all your
flying needs.
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:
Your Garmin dealer will perform the installation and configuration of your new GNS 480. After installation,
the NavData card will already be installed into the unit. The GNS 480 will be secured in the mounting tube
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.
CAUTION: The electronic chart is an aid to navigation and is designed to facilitate the use of
authorized government charts, not replace them. Only official government charts and notices
to mariners contain all information needed for save navigation – and, as always, the user is
responsible for their prudent use.
• GNS480UnitandNavDataCard
• MountingTubeandInstallationKit
• Pilot’sGuideandQuickReferenceGuide
• GNS480InteractiveTrainingCD
• DatabaseSubscriptionPacket
• WarrantyRegistrationCard
• *GPS Antenna kit is available as a separate option selected at the time of order
Preface
Thank you for choosing the Garmin GNS 480. The GNS 480 utilizes the proven performance of Garmin GPS
and full-featured mapping to create an unsurpassed aviation navigation system. Please take a moment now to
compare the contents of this package with the packing list on the outside of the box. If any pieces are missing,
please contact your Garmin dealer immediately.
About This Manual
To get the most out of your new navigation system, take time to read this manual and learn the operating
procedures for your unit in detail. This manual is organized into the following chapters.
The Introduction chapter contains the Table of Contents.
The Getting Started chapter provides information such as an overview of unit features and how to turn the
unit on and adjust the backlight. The GNS 480 also contains a simulator mode to help you get acquainted
with its functions and features.
The Basic Operation chapter provides you with information about basic features such as using the Moving
Map, Com and Nav radios, navigating a route, and using waypoints. There are also step-by-step directions to
assist you in these operations.
The Appendix contains information such as specifications, optional accessories, and maintenance information.
You can also find warranty, safety, and FCC information in the Appendix.
An Index is provided at the end of the manual for reference. Simply look up the topic you wish to learn about
and read the page or pages listed.
The GNS 480 uses GPS technology in order to find your precise
location. GPS stands for Global Positioning System, a group
of 24 satellites, circling the earth twice a day at an altitude of
about 12,000 miles. The satellites transmit very low power
radio signals containing position and time information, allowing
anyone with a GPS receiver to determine their location on
the Earth within 100 meters or better. For more detailed
information regarding GPS, Garmin has prepared a booklet
titled “GPS Guide for Beginners” available from our Web site at
Introduction
Welcome
www.garmin.com.
iii
Introduction
Table of Contents
Introduction ........................................... i
Cautions .................................................................i
Accessories and Packing List ......................... ii
Welcome ............................................................... iii
Preface................................................................ iii
About This Manual ............................................. iii
Getting Started .................................... 1
Controls .............................................................. 2
Datacard .............................................................. 4
Display ................................................................ 5
Using the Moving Map ........................................ 6
Annunciations ............................................. 11
Starting Up ........................................................ 13
Set Fuel Full and Reserve .................................. 13
Self-Tests ........................................................... 13
Database Check ................................................. 13
View Checklists ................................................. 14
View Messages ................................................... 14
Set Com and Nav Frequencies ........................... 14
Using the Remote Transponder .......................... 15
Change the Transponder (Squawk Code) -
Two Methods ......................................... 15
Transponder Options .................................. 15
Nav Terms Diagram ..................................... 16
Flight Plan Terms Diagram .......................... 16
CreateaNewFlightPlan(QuickMethod) ......... 17
Select a Direct-To a Waypoint in Your Flightplan 1 7
iv
Select a Direct To Waypoint Not in Your Flightplan
................................................................... 17
Find a Nearest Waypoint ................................... 18
Find a Nearest Waypoint Frequency .................. 18
Inserting Terminal Procedures and Approaches . 19
Perform a RAIM Prediction ................................ 19
Moving Map Mode (MAP) ...................................20
True North ........................................................ 20
Moving Map Mode Menu Items ......................... 21
GNS 480 Map Mode Nav Data Options ............. 22
Basic Operation .................................. 24
Nav/HSI Display (NAV) ......................................... 31
Panning (PAN) ...................................................... 33
Range ................................................................ 33
Create a New User waypoint ............................. 33
Direct-To .............................................................. 34
ActFP ................................................................ 34
DB ................................................................... 34
Direct ................................................................ 34
Inserting a Hold at a Waypoint in the Active Flight
Plan ............................................................. 35
Destination (Dest) ............................................. 35
Course-To (CrsTo) ............................................. 36
Course From (CrsFr) ......................................... 36
OBS ................................................................... 37
OBS to a Waypoint in Your Flight Plan .............. 37
OBS to a Waypoint Not in Your Flight Plan ....... 38
FlyLeg ............................................................... 38
Nearest (NRST) Search ......................................... 39
Search Around a Reference Point (SRCH) .......... 39
Nearest Frequency ............................................. 39
FSS and ARTCC Frequencies ............................. 40
Info on Nearest Waypoint .................................. 40
Fly Direct-To a Nearest Waypoint ...................... 40
Using the NRST Function to Change Your
Destination to a Nearest Airport .................. 41
Information on Waypoints (INFO) ........................42
Airport Information ........................................... 42
Airport Frequency Information ................... 43
VOR Information............................................... 44
NDB Information .............................................. 44
Airway Intersection Information ........................ 44
RAIM Prediction ................................................ 45
Com Radio (COM) ................................................ 46
Squelch(SQ) ..................................................... 46
Tx/Rx ................................................................ 46
Monitor (MON)................................................. 46
Recall (RCL) ...................................................... 46
Recent ............................................................... 46
User .................................................................. 47
Emergency ........................................................ 47
Flip/Flop ........................................................... 47
Signal ................................................................ 47
Weather ............................................................. 47
Audio ................................................................ 48
Save Channel..................................................... 48
Nav Radio (VOR) .................................................. 49
DME Distance ................................................... 49
ID ................................................................... 49
Monitor (MON)................................................. 49
Introduction
Recall (RCL) ...................................................... 50
Flip/Flop ........................................................... 50
ID/To/Fr ............................................................ 50
Back Course ...................................................... 50
Audio ................................................................ 50
User .................................................................. 50
Save Channel..................................................... 50
Test Log ............................................................. 51
Transponder Control (XPDR) ................................ 52
Ident ................................................................. 52
Standby ............................................................. 52
ON ................................................................... 52
ALT ................................................................... 52
Transponder Line Selection Keys ....................... 52
Emergency .................................................. 52
VFR ............................................................. 53
TrgrSpd ....................................................... 53
Auto ............................................................ 53
Flight ID ..................................................... 53
Ground ....................................................... 54
Manually Select a Squawk Code ........................ 54
Flight Planning (FPL) ............................................ 55
Active Flight Plan ........................................ 55
Modified Flight Plan .................................... 55
Remote Flight Plan ...................................... 55
Library Flight Plan ...................................... 56
Flight Plan Functions ........................................ 56
View ............................................................ 56
Back ............................................................ 56
Edit ............................................................. 56
Expand (XPND) ......................................... 56
Cross Link (X-Link) ................................... 57
Remote Flight Plans ..................................... 57
Reverse (Rvrse) ........................................... 57
Save............................................................. 57
Edit ............................................................. 58
Execute (Exec) ........................................... 58
Comment (Cmnt) ....................................... 58
Copy .......................................................... 58
Discontinuity ..................................................... 59
Pilot Nav Legs ................................................... 59
Searching for Waypoints to Insert into a Flight Plan
................................................................... 60
Activate a Flight Plan ......................................... 61
Delete the Active Flight Plan.............................. 61
Edit a Flight Plan ............................................... 61
Changing Origin, Destination, & Alternate
Waypoints ............................................. 61
Inserting a Waypoint or Airway in Your Flight
Plan ....................................................... 61
Deleting a Waypoint or Airway in Your Flight
Plan ....................................................... 62
Steps for Setting Up a Simple Flight Plan........... 62
Steps for Setting Up a Flight Plan Using Terminal
Procedures and Airways .............................. 62
A. Set Origin, Destination, and Alternate
Waypoints ............................................ 63
B. Add a Standard Instrument Departure (SID)
Procedure .............................................. 63
C. Insert En Route Flight Plan Airways and/or
Waypoints ............................................. 64
D. Modifying a Flight Plan While In Flight . . 64
E. Add Arrival Procedures (STARS) ............. 65
F. Add Approach Procedures........................ 65
LEG TYPES ...................................................... 66
Turn Short Path Calculation ........................ 66
Procedures ........................................................... 75
Selecting Procedures .......................................... 75
Activating an Approach ..................................... 75
Steps for approach operations ..................... 76
Basic Approach Operations Examples ................ 76
Approaches with Procedure Turns ..................... 77
Flying the Procedure Turn ................................. 78
Flying the Missed Approach .............................. 80
Flying an Approach with a Hold ........................ 81
Flying a DME Arc Approach .............................. 84
Vectors To Final ................................................. 87
Flying a Vectored Approach ............................... 88
ILS Approaches ................................................. 90
Selecting an ILS Approach ........................... 91
Flying the ILS Approach .............................. 92
Selecting an LPV Approach................................ 96
Flying the LPV Approach ............................ 96
Flying the LP Approach ..................................... 97
LPV, LNAV/VNAV, LNAV+V, and LNAV Approaches
with Advisory Vertical Guidance ................. 99
Timers (TMR) .....................................................102
Timer 1 and Timer 2 ....................................... 102
Trip Time and Distance ................................... 102
Flight Time and Distance ................................. 103
Trigger Speed .................................................. 103
Checklist (CHK) .................................................. 104
v
Introduction
Creating a New or Editing an Existing Checklist 1 0 4
Using Your Checklist ....................................... 104
Move a Checklist ............................................. 105
User Waypoints (USER) ...................................... 108
Creating or Editing a User Waypoint ............... 108
Searching for a User Waypoint ........................ 108
System Mode (SYS) ............................................ 109
GPS Status ....................................................... 109
Software Versions ............................................ 109
Configuration .................................................. 110
Barometric Correction ............................... 110
Barometric Pressure Units ......................... 110
Magnetic Variation Selection ...................... 111
Magnetic Variation Degree Value ............... 111
CDI Scale .................................................. 111
ILS CDI ..................................................... 112
Distance Units ........................................... 112
Altitude Units ............................................ 112
Fuel Type................................................... 113
Fuel Units ................................................. 113
Fuel Full Amount ...................................... 113
Fuel Low Message ..................................... 114
Display Brightness Selection ...................... 114
Minimum Brightness Value ........................ 115
Message Tone ............................................ 115
Airspace Alerts .......................................... 115
Owner Information ................................... 116
Aircraft Icon .............................................. 116
VFR Squawk ............................................. 116
Enable SBAS Providers ............................. 117
Parallel Track (PTK) ............................................118
Simulator Mode ................................................. 120
Automatic Track (ATK) .................................... 120
Manual Track .................................................. 120
Present Position (PPOS) .................................. 121
Airspeed .......................................................... 121
Messages (MSG) ................................................ 122
Text Messages .................................................. 122
Audio Messages .............................................. 126
Setting Message Audio Level...................... 127
Traffic (TFC) ........................................................ 128
Traffic Display Range Ring ............................... 128
Traffic Symbols ................................................ 128
Traffic Pop-Up ................................................. 129
No-Bearing Traffic Advisories (Skywatch Only) 129
Vertical Display Modes .................................... 130
Operate/Standby ............................................. 130
Test ................................................................. 130
Traffic in Map Mode ........................................ 131
Traffic Annunciations ...................................... 131
Specifications .................................................... 132
Physical Specifications ..................................... 132
Power .............................................................. 132
Environmental ................................................. 132
GPS Performance............................................. 132
VHF Comm Performance ................................ 132
VOR Performance ............................................ 132
Localizer Performance ..................................... 132
Glideslope Performance ................................... 132
Care Information .............................................. 133
Cleaning the Unit ............................................ 133
Battery Replacement ........................................ 133
Display Backlight............................................. 133
Appendix ..........................................133
Garmin Data Cards ............................................ 134
Installing and Removing Data Cards ................ 134
Glossary ............................................................. 136
WAAS ................................................................. 143
Safety Information ............................................ 143
What is WAAS? ............................................... 143
Safety Information ........................................... 143
Compliance, License, and Warranty Information 1 4 4
FCC Compliance ............................................. 144
Software License Agreement ............................ 145
Product Registration and Support .................... 145
Limited Warranty ............................................ 146
Index ................................................. 148
vi
This guide describes the operation of the GNS 480 (CNX80) Color GPS/WAAS NavCom. The GNS 480
(CNX80) provides a new, higher level of accuracy, integrity, integration, flight planning capability, and convenience for the pilot. The GNS 480 (CNX80) combines a large number of easily accessible controls to use the
high-resolution color multi-function display, Nav and Com transceivers, GPS/WAAS navigator, and transponder controller all in a single unit. The GNS 480 (CNX80) with the GPS/WAAS navigator is certified for use as
primary navigation equipment for both VFR and IFR operations.
This Pilot’s Guide covers the details, so you can get the most out of your GNS 480 (CNX80), quickly. For more
details and examples, refer to the GNS 480 (CNX80) Computer-Based Training (CBT) compact disc and in-
ightdemoDVDwhichareprovidedforyourconvenience.ThesedocumentsandtheQuickReferenceGuide,
when used with the simulator for practice, will prepare you to get the most out your equipment.
Getting Started
1
Getting Started
Push the PWR/VOL knob in to turn the unit on. Press
the COM, VOR, XPDR keys to activate that mode. Press
CDI to select the CDI source. Press SUSP to suspend
waypoint sequencing.
Press the “smart” key below the function label to activate the named function. Pressing FN scrolls available
functions.
2
Controls
Power/Volume
The knob at the top left corner of the GNS 480 controls power on/off and the radio volume. Push the
PWR/VOL knob in to turn power on. Pull the knob out to turn power off. When the power knob is
pulled out, a time-out message and counter will appear for five seconds. Turning the knob will control the volume of the COM radio, unless the NAV radio is active then the NAV volume is controlled.
A white border surrounding the Com, VOR, and XPDR information will flash and the values you can
change will be highlighted when each mode is activated.
FN and Function Smart Keys
Press the FN key to page through the available group of Functions that appear at the bottom of the
display. The “Smart” function keys located below each label will activate that function.
COM
Select Com radio mode. Press COM. The function and menu item smart keys access more features.
VOR
Select Nav radio mode. Press VOR. The function and menu item smart keys access more features.
XPDR
Select the External Transponder mode, if installed. Press XPDR. The function and menu item smart
keys access more features.
CDI
Toggles the main CDI output between GPS and internal VOR/LOC radio sources.
SUSP
Manually suspends or resumes flight plan waypoint sequencing. When waypoint sequencing is
suspended, the SUSP annunciator will be displayed in the bottom left corner of the display. The GNS
480 will auto-suspend when required for certain procedures, such as Vectors-To-Final (VTF) mode. In
VTF mode, if you are within 45° of the inbound course and you are on the TO side, the “SUSP” mode
will turn off and return to normal sequencing. See page 99 for more details.
MAP
Selects the moving Map mode. Press MAP twice to view Map page 1. Turn the Large knob to view all
four MAP pages. The function and menu item smart keys access more features.
Direct-To
Selects the Direct-To page. Menu options allow setting up Direct-To (D->), setting a customized
holding pattern around a waypoint (Hold), Course To (CrsTo) a waypoint, Course From (CrsFr) a
waypoint, OBS mode uses input from your CDI Course Selector, and activating a given leg of your
active flight plan (FlyLeg). The function and menu item smart keys access more features.
NRST
Activates Nearest Search. You can search through the closest 20 of airports, NDBs, VORs, intersections, airspaces, user-created waypoints, Flight Service Station (FSS) with frequency data, and Air
Route Traffic Control Center (ARTCC) with frequency data. The function and menu item smart keys
access more features.
INFO
Activates Info mode for the highlighted waypoint or the active flight plan (ActFP) waypoint. Information about the selected waypoint such as location, name, a map, frequencies, and more depending on
the waypoint type is provided. When frequencies are provided and highlighted, pressing the <-SBY
Press MAP to view the moving map. Press D-> to go
direct-to a selection. Press NRST to search for the
Nearest . Press INFO to view information about a
selected waypoint. Press CLR to clear information or
ignore a choice.
or <-A-> keys will insert the selected frequency into the appropriate radio. The function and menu
item smart keys access more features.
CLR
Clears text when editing or deletes the highlighted item.
Getting Started
3
Getting Started
MENU/ENTER and Menu Item Keys
When editing information, or a response is required, pressing the Menu/Enter key accepts the value
or confirms the response. In COM, VOR, XPDR, and MAP modes, pressing this key will bring up a
list of menu items on the right side of the display allowing the pilot to select. The menu items are
then selected by pressing the key to the right of it. Pressing the Menu/Enter key while the menu
items are shown will remove them from view.
Large/Small Knobs
You can move the cursor or highlight information by turning the Large knob. Turn the Small knob
to change information.
CRSR
Press the Small knob in to activate the cursor (CRSR). The area on the display that you can now edit
will be highlighted. Now you can change information with the Small knob and move the cursor
to the next area to edit with the Large knob. If you are in Map mode, pressing the CRSR activates
PAN mode. In Transponder mode, it allows editing squawk codes. In Direct-To and Flight Plan (FPL)
modes, activating the CRSR control will help narrow a waypoint search.
Datacard
The Map database and other information is stored on a data card. The use of a data card allows you to easily
update information.
NOTE: Only change the data card when the power is turned off or you may damage your unit.
Handle your data card carefully. Do not touch the connector edge of the data card. To eject the card, press the
data card ejector. Gently pull the card straight out of the slot. Insert a data card by pushing the card straight into
the slot. When fully inserted, the data card and eject button will be flush and slightly recessed into the bezel.
When contacting your dealer or the Garmin customer service staff, eject the data card and write down the
information shown on the label.
NOTE: Never insert or eject the data card with the power on.
4
Display
The GNS 480 uses a high-resolution color display to provide information about the different functions. Information and “smart keys” unique for each mode of operation are displayed. Sample displays with a description
of common elements are shown below.
When you press the COM, VOR, or XPDR keys on the left side of the
display, the window for that function will be outlined and the information
active for editing will be highlighted.
The labels for the bottom row of Function smart keys will change for each
function selected. Press Menu/Enter to display Menu Item smart keys. The
Menu Item smart keys will adjust to the options for each function.
Getting Started
5
Getting Started
Using the Moving Map
The Map mode provides a moving map for a graphic display of your flight including the surrounding area,
as well as navigation information to aid your situational awareness. You can customize each of the four Map
pages for the Map range and the information displayed, such as Airports, VORs, NDBs, Intersections, User
Waypoints, Airspace, Traffic from TIS or Skywatch, Hi and Lo Airways, Flight Plan course line, or Nav information items. When decluttering is selected, the map is automatically decluttered to remove map detail for
clarity as you increase the map range.
1. Press MAP to reach Map mode. Radio, Nav, Transponder, CDI, Annunciator, or pilot-customized
information is shown on the left side of the display and the map display is shown on the right side.
2. There are four Map pages that you select by turning the Large knob.
3. Turn the Small knob to change the Map range. Map pages 2-4 allow you to customize the Nav display
items on the left side of the display and map display detail.
4. Press Menu/Enter to view the Menu items for the choices to customize your display.
5. Press the key next to the Menu item to change the item values.
6. Press the More key to go to the next page of Menu items.
6
The following symbols are used on the map display to depict active legs of flight, waypoint types, and your aircraft.
Getting Started
Turn Left for next flight
plan leg
Turn Right for next
flight plan leg
No course change VORTAC Ownship - Jet
Left Procedure Turn
Outbound
Arc to the Left NDB Flight Plan
Arc to the Right User Waypoint Intersection
Left Procedure Turn
Inbound
Entering Procedure Turn
Right
Right Hand Holding
Pattern Outbound
Airport Ownship - Single
VOR Ownship - Twin
VOR-DME Ownship -
Helicopter
Waypoint
Entering Procedure
Turn Left
Direct-To Left Hand Holding
Right Hand Holding
Pattern Inbound
Left Hand Holding
Pattern Inbound
Pattern Outbound
7
Getting Started
8
Getting Started
9
Getting Started
10
Annunciations
The following annunciations appear on the appropriate displays to provide status or information. All annunciations
are available on the moving map display. Annunciations may be output to external annunciators.
Annunciation Description
GPS Indicates GPS is being used as the navigation source. Appears in lower left corner of the display.
VOR/ILS/LOC Indicates VOR/ILS/LOC is being used as the navigation source. Appears in lower left
corner of the display.
ENR Appears to the right of the “GPS” annunciator when in En Route mode. When > 30 nm
from departure or destination and not on departure or arrival procedure. CDI resolution
is ± 2 nm.
TERM Appears to the right of the “GPS” annunciator when performing approach navigation
within 30 nm of departure or arrival airport. CDI resolution is ± 1 nm.
APPR Appears to the right of the “GPS” annunciator when GPS approach is active, and on Final
Approach course (i.e. VTF or FAF, MAP, or the first Missed Approach waypoint is active. CDI
resolution is variable for all approaches and becomes more sensitive as you near the runway.
LOI “LOI” (Loss of Integrity) appears on the left side of the map display when WAAS/GPS is
unable to calculate the integrity of the position or calculated integrity is insufficient to
support the current phase of flight.
BC The Back Course annunciation appears to the right of “LOC” when the Back Course
Localizer mode is enabled.
DR The Dead Reckoning annunciator appears on the left side of the map display when GPS
position is unavailable and the GNS 480 is in Dead Reckoning mode. Dead Reckoning
mode will continue until GPS position is restored or the first Pilot Nav leg is reached.
PTK The Parallel Track annunciator appears in the lower left corner of the display when paral-
lel track is active.
SUSP Suspend annunciation appears in the lower left corner of the display when automatic
sequencing of waypoints in the active flight plan is suspended.
Getting Started
11
Getting Started
M Message annunciation appears in the lower left corner of the display when a message is
VTF Vector To Final annunciation appears in the lower left corner of the display when “Vector
ALT Appears for Lnav/Vnav or LPV approaches when the aircraft’s estimated height is lower
CDI Window Shows course deviation, heading, or PILOT NAV.
CDI Window:
Rwy Dist/Brg
CDI Window:
FLAGGED
CDI Window:
HDG xx°
CDI Window:
PILOT NAV
TFC, TFC Fail, TFC STBY,
TFC Test, TFC N/A
LPV, LP, Lnav/Vnav, Lnav,
Lnav+V
available for viewing. A blinking “M” indicates a new message.
To Final” approach mode is active, which may be activated manually or automatically.
than the Final Approach waypoint height by more than the current VPL plus 50 meters.
Shows distance To runway and a bearing direction indicator for LPV, LNAV, and Lnav/
Vnav approaches.
No active guidance is available for the selected Nav source (VHF Nav radio or GPS
receiver). For GPS, the usual causes are Loss of GPS position, Loss Of Integrity, or inadequate GPS HPL or VPL on the Final Approach leg.
Displayed when a PILOT NAV Heading Leg is the active flight plan leg. The current heading is shown. If heading information is not available, the field is dashed.
Guidance is not provided on this leg by the GNS 480. Use other flight instruments to fly
this leg.
Status of the external traffic source.
LPV is for GPS precision approaches. Amber indicates the current vertical (VPL) or
horizontal protection level (HPL) exceeds the alarm limit. Green indicates the VPL and
HPL are acceptable for LPV or Lnav/Vnav approaches (WAAS environment). LP indicates
Localizer Performance with no vertical guidance. LPV indicates Localizer Performance
with vertical guidance. Lnav/Vnav indicates an Lnav approach with vertical guidance.
Lnav indicates an Lnav only approach with no vertical guidance.
Note that some Lnav/Vnav approaches are not yet marked in the database as such and
will show up as Lnav+V. Non-precision GPS approach with advisory vertical guidance. If
the chart shows the approach as Lnav/Vnav, it can be flown to Lnav/Vnav minimums.
12
Starting Up
The GNS 480 performs internal checks and shows the status of the tests during start up. The startup screen,
owner name (if entered), testing, position, and database information shows on the screen for several seconds
and then shows the first Map page. It is not generally necessary to enter a GPS seed position unless the unit
has either been moved several hundred miles or been unused for six months or so with the power off. A seed
position should have been entered the first time the unit was turned on during installation.
Power Up
1. Push the PWR/VOL knob in to turn on power.
2. When the position display appears, you can press CHG to manually enter your present position or just
wait a few seconds for the GNS 480 to establish your position.
3. The GNS 480 performs a number of tests at startup to ensure proper operation. You may press SKIP to
bypass the startup tests, however, completing these tests is required for IFR flight. Any failures will be
noted by a message.
Set Fuel Full and Reserve
If a Fuel/Air Data Computer is installed, Fuel Full and Fuel Reserve amounts are entered manually in the Configuration page of System mode and are reflected in the start-up screens. On start-up, you will be prompted for
the Total Fuel on Board.
Press the Menu/Enter key to accept the displayed amount of fuel or change the displayed amount with the
Small knob and then press the Menu/Enter key.
Self-Tests
The GNS 480 performs internal checks and shows the status of the tests during start up. After these internal
checks, the GNS 480 is ready to navigate.
Getting Started
Start-Up Display
Database Check
The GNS 480 verifies the integrity and expiration date of the database. Up to two database cycles are supported. The GNS 480 will load the appropriate current database cycle and also let you know if a database is
not current (dates invalid).
Database Verification
13
Getting Started
The database information can be checked after start-up in the SW Version page of the System function. Press
the Menu/Enter key to continue after you have verified the dates. Valid databases are in green. The database
beingusedhasanasterisk(*)nexttoit,iftherearetwodatabases.Expireddatabasesareamber.
View Checklists
Use a checklist to review preparation for flight.
1. Press FN and then the CHK function smart key.
2. Turn the Large knob to select the desired list and press Menu/Enter.
3. Press CHCK or Menu/Enter as you check each item on the list. The next item in the list will then be
highlighted. Checking the last item will take you back to the main Checklist page.
View Messages
You can review system messages by pressing the MSG function smart key. Turn the Large knob to switch
between New and Old messages. Turn the Small knob to scroll through the available messages. The Message
annunciator (M) will flash until all unread messages have been read. While old messages exist and there are
no new messages, the Message annunciator will remain solid. The Message annunciator will not appear when
there are no messages.
Set Com and Nav Frequencies
You can set the Com and Nav frequencies manually
1. Press Com for VHF Com frequencies or press VOR for VOR/LOC/ILS frequencies.
2. Turn the Large knob to select MHz and turn the Small knob for kHz of the stand-by frequency.
3. Press the <—> key to flip-flop the active and stand-by frequencies.
4. Press MON to toggle monitoring of the stand-by frequency.
5. Turn the PWR/VOL knob to adjust the audio level.
14
Using the Remote Transponder
The Transponder Control Mode will allow you to control a compatible remotely mounted transponder from
the GNS 480 front panel.
Press XPDR to activate Transponder mode.
Change the Transponder (Squawk Code) - Two Methods
1. Turn the Large knob to highlight the Squawk Code.
2. Turn the Small knob to select a number and then turn the Large knob to move to the next character.
3. The Ident is automatically saved after selecting the fourth character.
OR
1. Press the Cursor (CRSR) knob in.
2. Press the function or menu item smart keys next to the numbers 0-9 shown on the bottom and right
side of the display in the order desired.
3. The Ident is automatically saved after selecting the fourth character.
Transponder Options
Press Menu/Enter to view options. Controls and features may vary depending on the transponder.
• PresstheEmrgncy menu item key and then Menu/Enter to insert the 7700 squawk code.
• PresstheVFR menu item key to insert the 1200 squawk code.
• PresstheTrgrSpd menu item key to select the speed that will “trigger” the automatic activation of the
transponder (SL70 only) when in Auto mode.
1. Turn the Large and Small knobs to select the trigger speed.
2. Press Menu/Enter to save the trigger speed.
• PressAuto to toggle the Auto Activate mode. The transponder (SL70 only) automatically goes from
standby to active when accelerating past the Trigger Speed and goes from active to standby when
decelerating below the Trigger Speed.
• PressIDNT to activate Ident mode.
• PressSTBY to place the transponder in Standby.
• PressON to enable Mode A operation (sends a squawk code).
• PressALT to enable Mode C/S operation (sends a squawk code and altitude data).
Getting Started
Changing the transponder squawk code
Transponder details
15
Getting Started
Nav Terms Diagram
Flight Plan Terms Diagram
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Create a New Flight Plan (Quick Method)
The Flight Planning function lets you set up and store flight plans where you can name the flight plan, insert a
series of waypoints, and then add comments. The Active flight plan is the flight plan that the GNS 480 is currently
using for navigation guidance. The Modified flight plan is a temporary copy of the active flight plan that you can
edit prior to executing or saving the changes. The active plan won’t be affected until you execute the modified plan.
A remote flight plan is one that has been received from another connected GNS 480, but while the units are not
setup for Cross-Link (X-Link) mode. The Library flight plans are stored flight plans for future use. This is a quick
start overview of flight planning. See the Flight Planning section for more detail.
1. Press FN and then the FPL function smart key.
2. Press New.
3. Use the Large and Small knobs to select the Origin waypoint and then press Menu/Enter.
4. Use the Large and Small knobs to select the Destination waypoint and then press Menu/Enter. This
allows you to select the appropriate terminal procedures from the database. The active flight plan is
deleted and is replaced with the new Direct-To flight plan.
5. Highlight the departure waypoint and insert a waypoint or airway. Continue inserting waypoints or
airways until the route is complete.
6. The flight plan is automatically saved into the Library and named by the Origin and Destination
waypoints.
7. Press the Exec key to execute the flight plan and make it the active flight plan.
Select a Direct-To a Waypoint in Your Flightplan
1. Press the D-> key.
2. Turn the Large knob to highlight a waypoint.
3. Press the Direct menu selection key.
Select a Direct To Waypoint Not in Your Flightplan
1. Press the D-> key and then the DB function smart key.
2. Select a waypoint using the Small knob to select a character and the Large knob to move to another
character.
3. Press the Direct menu item key.
Getting Started
Flying Direct-To a new destination
(Direct-To - DEST)
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Getting Started
Nearest waypoint search - Airport
(TWR/CTAF - Frequencies)
Nearest airport frequencies
Find a Nearest Waypoint
The Nearest (NRST) Waypoint Search function allows you to search for the 20 waypoints nearest to your present position in each of eight waypoints types: Airport, VOR, NDB, INT, User, FSS (Flight Service Station), Airspace, and Air Route Traffic Control Center (ARTCC). You can also set Limits to select a range of airport types
to show up for the Nearest Airport type. You can then look up information about a waypoint or fly direct to it
1. Press NRST. The default waypoint type is Airport.
2. Press the menu item key for the desired waypoint type. Press the More menu item key to display more
types.
3. Turn the Large knob to scroll through the list.
4. Press the Standby (<-SBY) or Active (<-A->) smart keys to insert the frequency into the Com radio.
5. Press D-> to fly direct to the highlighted waypoint or press INFO to display information about that
waypoint.
6. Press the RAIM function key to perform a RAIM prediction.
Find a Nearest Waypoint Frequency
1. Press NRST and then press the menu item key for the desired waypoint type. Turn the Large knob to
highlight the desired waypoint.
2. If the desired frequency is shown in the Nearest list, press the Standby (<-SBY) or Active (<-A->) smart
keys to insert the frequency into the Com or Nav radios.
3. If you need another frequency for an airport, press INFO and then the Freqs menu item key.
4. Turn the Large knob to highlight the desired frequency.
5. If the frequency has an asterisk, press the Freq* menu item key to display more narrative information
about that frequency. Turn the Large knob to scroll through the narrative information of the other
frequencies.
6. Press <SBY to insert the selected frequency into the Standby position or press <A> to insert it into the
Active position in the Com or Nav radio.
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Inserting Terminal Procedures and Approaches
After creating your flight plan, you can select an approach, departure, or arrival procedure so the GNS 480 can
guide you through the flight plan. You may also make adjustments in Flight Edit mode.
1. Press the PROC function smart key for Procedure Mode. The Origin and Destination waypoint of your
active flight plan are shown.
2. Press the Depart menu item smart key to select the Departure procedure. If available, select the
departure runway (with the Small knob or the menu item keys).
3. Turn the Large knob to highlight the transition and turn the Small knob to make the selection. Press
Menu/Enter to accept the selections.
4. Press the BACK function smart key to return to the Procedures mode. Depending on the procedure for
your destination, press the Destination Arrival or Appch menu item smart key.
5. Choose the transition and the runway by moving to a selection with the Large knob and listing the
choices with the Small knob. Press Menu/Enter to accept the procedure.
6. If desired, select an alternate airport by pressing the Alternate Select menu item key.
7. Press EXEC to activate the procedures for your flight plan.
Setup procedures and approaches for your
flightplan
Perform a RAIM Prediction
RAIM prediction predicts if GPS coverage is available for any waypoint. This is used when WAAS satellites or
corrections are not available. If WAAS corrections are not available, vertical guidance will not be available for
an approach.
1. Highlight a waypoint in the active flight plan or select a waypoint from the database. Press INFO and
then press the RAIM function smart key when it is shown.
2. Press the CRSR knob in. One of the fields will be highlighted. Change the values of the Arrival Date
and/or Arrival Time (in UTC time) with the Small knob while moving to a value with the Large knob.
The default calculation is the ETA to the last waypoint in the active flight plan. When selecting a
waypoint from the database other than one in the active flight plan, the default calculation is the ETA
from the present position to the waypoint.
3. After setting the values, press the Menu/Enter key to compute the RAIM prediction.
Getting Started
Compute RAIM for your destination
19
Basic Operation
Moving Map
Map Mode - Page 1
Moving Map Mode (MAP)
The Map mode provides a moving map for a graphic display of your flight including the surrounding area as
well as navigation information. Maps are generally drawn with Ground Track magnetic North at the top of the
display (Up). You can customize each of the four Map pages for the Map scale and the information displayed,
such as Airports, VORs, NDBs, Intersections, User Waypoints, Airspace, Traffic, Hi and Lo Airways, Flight Plan
course, or Nav items. Other information is available depending on equipment installation and services.
1. Press MAP to reach Map mode. Radio, Nav, Transponder, CDI, Annunciator, or pilot-customized
information is shown on the left side of the display and the map display is shown on the right side.
2. There are four Map pages that you select by turning the Large knob.
3. Turn the Small knob to change the Map scale. Map pages 2-4 allow you to customize the Nav display
items on the left side of the display and map display detail.
4. Press Menu/Enter to view the Menu items for the choices to customize your display.
5. Press the key next to the Menu item to control the display of information.
6. Press the More key to go to the next page of Menu items.
True North
The Map can be referenced to True North after setting the Magnetic Variation to 0° in the Configuration section
of System mode. When set to True North, the degree values on the map display will show a “T” along with
the degree symbol. Magnetic North is used for normal operation and is not indicated. In some situations, True
North may be used such as in northern Canada.
True North indication in Map Mode
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Moving Map Mode Menu Items
Menu Item Description
Airports, VORs, NDBs, Intersections, User Waypoints,
Lo and Hi Airways
Airspace Solid reversed means the airspace outline and sector
Traffic Toggles on/off the display of traffic when it is installed.
Flight Plan Map pages 2-4. Toggles display of route line on/off.
Declutter Auto-Declutter - Toggles decluttering of the display of
Nav Data/Sel Data Customize the Nav information on map pages 2-4.
Solid reversed label means identifier and location
symbol are displayed. A bold outline means only the
location symbol will be displayed. A thin outline means
this item will not be displayed on the map.
lines are displayed. A bold outline means that only the
outline of airspace is displayed. A thin outline means
that airspaces will not be displayed on the map.
labels and icons on/off at the higher zoom levels.
Press the Nav Data key and then the Sel Data key.
Then turn the Large knob to move the cursor to the
different fields in the Nav information part of the Map
display. Turn the Small knob to view the available
choices of information. Press Menu/Enter to confirm
and save your choices.
Basic Operation
Moving Map
21
Basic Operation
Moving Map
GNS 480 Map Mode Nav Data Options
The following table shows the choices of the options you can make for setting up the Map Mode display in
your GNS 480. You can customize the Nav information displayed on the left side of the display for Map Mode
pages 2, 3, and 4. You can select these options as described below.
1. Press MAP to reach Map mode.
2. Turn the Large knob to select pages 2-4. You can’t change the Nav information options for page 1.
3. Press the Menu/Enter key.
4. Press the More selection key until the Nav Data selection is available.
5. Press the Nav Data menu item key.
6. Press the Sel Data menu item key to activate selection of options of Nav Data information.
7. Turn the Large knob to highlight the desired Nav Data item. Turn the Small knob to change the
displayed option.
8. Press Menu/Enter when you have completed your selections.
9. If desired, turn the Large knob to another Map Mode page and customize that page.
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