Garmin GNC 420AW Manual

400W / 500W Series
Garmin Optional Displays
Pilot’s Guide Addendum For:
• GDL 69/69A XM Satellite Datalink
• GTX 330/330D TIS
• Garmin TAWS (GPS 500W & GNS 530W)
• Garmin HTAWS (Helicopter Installations)
• Terrain Proximity (Helicopter Installations)
• Garmin GTS 8XX Series TAS

Foreward
This Pilot’s Guide Addendum is written for:
• Garmin GPS 400W, GNC 420W/420AW, and GNS 430W/430AW Main System Software Version 2.00, 3.00, 3.30, 4.00, or later
• Garmin GPS 500W & GNS 530W/530AW Main System Software Version 2.00, 3.00, 3.30, 4.00, or later
• GTX 330/330D Main Software Version 4.05
• GDL 69/69A Main Software Version 3.02 or later
Some differences in operation may be observed when comparing the information in this manual to earlier or later software versions.
© 2010 Garmin Ltd. or its subsidiaries. All Rights Reserved.
Garmin International, Inc., 1200 East 151st Street, Olathe, KS 66062, U.S.A.
Tel. [phone] or 800/800.1020 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]
Except as expressly provided herein, no part of this addendum may be reproduced, copied, transmitted, disseminated, downloaded,
or stored in any storage medium, for any purpose without the express prior written consent of Garmin. Garmin hereby grants permis-
sion 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 and to print one copy of this manual or of any revision hereto, 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 its products and to make changes in the content without obligation to notify any person or orga-
nization of such changes or improvements.
Garmin®is a registered trademark, and GTX™ and GDL™ are trademarks of Garmin Ltd. or its subsidiaries and may
not be used without the express permission of Garmin Ltd. or its subsidiaries.
July 2010 190-00356-30 Revision H
190-00356-30 Rev H
The screen display examples shown in this
addendum are taken from the GNS 430W
and GNS 530W. TIS and Weather Data Link
Display Interface functionality is the same
for the 400W and 500W Series Units. TIS
Traffic Display and Weather Data Link are
available only when the 400W/500W units
are configured with the GTX 330 Mode S
Transponder and GDL 69/69A Data Link
Transceiver, respectively.

i
Introduction
Warnings and Cautions
WARNING: Terrain data are obtained from third party sources. Garmin is not able to independently verify the accuracy of this
data which should be used only as an aid for situational awareness. Terrain data must not be used as the sole basis for deci-
sions or maneuvers to avoid terrain or obstacles. Terrain data must not be used for navigation.
CAUTION: Use the 400W/500W Series Units at your own risk. To reduce the risk of unsafe operation, carefully review and
understand all aspects of the Owner’s Manual and the Flight Manual Supplement, and thoroughly practice basic operation
prior to actual use.
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 Garmin 400W/500W Series Units are precision electronic NAVigation AIDS (NAVAID), any NAVAID can be
misused or misinterpreted and therefore become unsafe.
CAUTION: Use the Weather Data Link Interface, TIS, TAWS, HTAWS, and TERRAIN at your own risk. To reduce the risk of unsafe
operation, thoroughly practice basic operation prior to actual use. When in actual use, carefully compare indications from the
Garmin unit to all available navigation sources, including the information from other NAVAIDS, visual sightings, charts, etc.
For safety, always resolve any discrepancies before continuing navigation. The GPS altitude format calculated by the Garmin
400W/500W Series units is geometric height above mean sea level and could vary significantly from altitude displayed by pres-
sure altimeters in aircraft. Never use GPS altitude to determine aircraft altitude.
CAUTION: The Jeppesen database incorporated in the Garmin 400W/500W Series Units 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
Garmin 400W/500W Series Unit package. Pilots using an out-of-date database do so entirely at their own risk.
CAUTION: The Weather Data Link, TIS, TAWS, HTAWS, and TERRAIN information contained in this Pilot’s Guide Addendum is
not intended to replace the documentation that is supplied with the applicable Garmin 400W/500W Series Unit and the GTX
330 Transponder. The user must know how to operate the 400W/500W Series Unit and be knowledgeable of the information in
the 400W/500W Pilot’s Guide.
TIS CAUTION: TIS is NOT intended to be used as a collision avoidance system and does not relieve pilot responsibility to “see
and avoid” other aircraft. TIS should not be used for avoidance maneuvers during IMC or other times when there is no visual
contact with the intruder aircraft. TIS is intended only to assist in visual acquisition of other aircraft in VMC. Avoidance maneu-
vers are not recommended, nor authorized, as a direct result of a TIS intruder display or TIS alert.
While TIS is a useful aid to visual traffic avoidance, it has some system limitations that must be fully understood to ensure
proper use. Many of these limitations are inherent in secondary radar surveillance. In other words, the information provided by
TIS will be no better than that provided to ATC.
CAUTION: Garmin would like to remind pilots flying with GDL 69/69A-equipped aircraft that TFRs are only advisory and
are not a replacement for a thorough preflight briefing on TFR times and locations. Always confirm TFR data through official
sources and contact your Flight Service Station for interpretation of TFR data.
NOTE: For software version 4.00 and later: when configured for helicopters (the helicopter icon will be displayed), black, circu-
lar or oblong “cutouts” will be displayed on the Terrain Page around airports and heliports, to enhance viewing of the informa-
tion displayed for those locations. The Terrain legend (shown in the lower right of the display on the Terrain Page) defines the
color black as -500 ft. However, this does not apply to the black cutouts surrounding the airports and heliports. The cutouts are
for display purposes only and do not affect the performance of HTAWS.
190-00356-30 Rev H

ii
Introduction
Table of Contents
Table of Contents
Part One: Traffic Information Service (TIS) Interface 1
Section 1: TIS Operation and Symbology....................1
TIS Operation............................................................................1
How TIS differs from TCAS.........................................................2
TIS Limitations ..........................................................................2
Improving TIS............................................................................3
TIS Symbology ..........................................................................3
Section 2: Control and Display.....................................5
TIS Traffic Display Status and Pilot Response..............................5
Traffic Page...............................................................................6
Traffic Page Display Range ........................................................6
Map Page.................................................................................7
Configuring TIS Traffic Data on the Map Page.......................7
Highlighting TIS Traffic Using Map Page Panning........................8
Section 3: TIS Operational Procedures........................9
Introduction..............................................................................9
Power-Up Test...........................................................................9
Manual Override.....................................................................10
Flight Procedures ....................................................................10
After Landing..........................................................................10
Part Two: XM Radio Interface ....................................11
Section 1: Introduction ...............................................11
Overview ................................................................................11
XM Radio Pages .....................................................................11
XM NAV Pages..................................................................11
XM WPT Pages..................................................................12
XM AUX Pages ..................................................................12
Section 2: XM Weather ................................................12
Weather Product Age..............................................................13
XM NEXRAD Weather .............................................................13
NEXRAD U.S. and Canadian Coverage ...............................14
NEXRAD Intensity..............................................................15
NEXRAD Abnormalities......................................................15
NEXRAD Limitations..........................................................16
XM Weather METARs..............................................................16
Textual METAR Page..........................................................18
Textual METAR/TAF Code ..................................................19
TAF Page...........................................................................19
TFR Information.................................................................19
Lightning (LTNG).....................................................................20
Cell Movement (CELL MOVE) ..................................................21
Winds Aloft.............................................................................22
Winds Aloft Altitude ..........................................................23
Section 3: XM AUX Pages.............................................23
XM Information Page .............................................................23
XM WX Timestamps ................................................................24
Section 4: XM Audio.....................................................25
XM Audio Menu .....................................................................27
Add to Presets List..................................................................27
Enter Channel Number............................................................28
Display Channel In List............................................................28
Display Artist In List ................................................................29
Display Title In List ..................................................................29
Enable/Mute Audio Output......................................................30
Change Volume ......................................................................30
Part Three: TAWS Interface.........................................31
Section 1: Introduction ...............................................31
Overview ................................................................................31
Operating Criteria ...................................................................31
Limitations..............................................................................31
Section 2: TAWS Operation.........................................32
TAWS Alerting.........................................................................32
Baro-Corrected Altitude ..........................................................32
Power Up ...............................................................................32
TAWS Page.............................................................................32
Inhibit Mode...........................................................................34
External TAWS Inhibit Control............................................34
TAWS Manual Test ..................................................................34
TAWS Symbols........................................................................35
General Database Information.................................................36
Database Versions...................................................................36
Database Updates ..................................................................37
Terrain/Obstacle Database Areas of Coverage..........................37
Section 3: TAWS Alerts ................................................ 38
Forward Looking Terrain Avoidance .........................................38
Premature Descent Alerting (PDA) ...........................................39
Excessive Descent Rate Alert (EDR)..........................................40
Negative Climb Rate After Takeoff Alert (NCR) .........................40
“Five-Hundred” Aural Alert .....................................................42
TAWS Not Available Alert........................................................42
TAWS Failure Alert ..................................................................42
TAWS Alert Summary ..............................................................42
Pilot Actions ...........................................................................44
Airport Terrain “Cutouts”........................................................44
190-00356-30 Rev H

iii
Introduction
Table of Contents
Part Four: HTAWS Interface ........................................45
Section 1: Introduction ...............................................45
Overview ................................................................................45
Operating Criteria ...................................................................45
Limitations..............................................................................45
Section 2: HTAWS Operation ......................................46
HTAWS Alerting ......................................................................46
Baro-Corrected Altitude ..........................................................46
Power Up ...............................................................................46
HTAWS Page...........................................................................46
Page Menu........................................................................47
Inhibit Mode...........................................................................48
External HTAWS Inhibit Control..........................................48
Reduced Protection Mode .......................................................48
Mute Active Caution ...............................................................49
HTAWS Manual Test................................................................50
HTAWS Legend.......................................................................50
HTAWS Symbols......................................................................51
General Database Information.................................................52
Database Versions...................................................................52
Database Updates ..................................................................53
Terrain Database Areas of Coverage ........................................53
Obstacle Database Areas of Coverage .....................................54
Section 3: HTAWS Alerts .............................................54
Forward Looking Terrain Avoidance .........................................55
Voice Call Out Aural Alert........................................................55
HTAWS Not Available Alert......................................................56
HTAWS Failure Alert................................................................56
HTAWS Alert Summary............................................................56
Pilot Actions ...........................................................................57
Voice Call Out Selection.....................................................58
Part Five: Terrain Proximity Interface .......................59
Introduction............................................................................59
Displaying Terrain Proximity.....................................................59
Terrain Proximity 120° Arc or 360° Rings.................................60
Terrain Proximity Aviation Data................................................60
Terrain Proximity Legend .........................................................61
Terrain Proximity Limitations....................................................62
System Status .........................................................................62
Part Six: Garmin GTS 8XX Series Interface ...............63
Introduction............................................................................63
GTS 8XX Series Description .....................................................63
Power-up Self-Test ..................................................................63
User-initiated Test ...................................................................64
Voice Announcements.............................................................64
Switching Between Standby and Operating Modes ..................64
Altitude Display Mode.............................................................65
Traffic Page.............................................................................65
Traffic Warning Window ..........................................................66
Traffic Page Display Range ......................................................66
Configuring Traffic Data on the Map Page................................66
Highlighting Traffic Data Using Map Panning ...........................67
Monitoring Traffic....................................................................68
Failure Response.....................................................................68
Description of Traffic Advisory Criteria......................................68
190-00356-30 Rev H

iv
Introduction
Table of Contents
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190-00356-30 Rev H

1
Part One: Section 1
Part One:
Traffic Information Service
(TIS) Interface
Section 1: TIS Operation and
Symbology
TIS Operation
NOTE: Part One of this Addendum assumes the user
has experience operating the 400W/500W Series units
and the Garmin GTX 330 Transponder.
The Traffic Information Service (TIS) provides
a graphic display of traffic advisory information in
the cockpit for non-TCAS (Trafc alert and Collision
Avoidance System) equipped aircraft. TIS is a ground-
based service providing relative location of all ATCRBS
(Air Trafc Control Radar Beacon System) Mode A
and Mode C transponder-equipped aircraft within a
specified service volume. The TIS ground sensor uses
real-time track reports to generate trafc notication.
TIS Traffic display is available to aircraft equipped
with a Mode S Data Link such as the Garmin GTX 330
Transponder. TIS Trafc from a GTX 330 Transpon-
der can then be displayed on a Garmin 400W/500W
Series unit. Surveillance data includes all transponder-
equipped aircraft within the coverage volume. Aircraft
without an operating transponder are invisible to TIS.
TIS displays up to eight traffic targets within seven
nautical miles horizontally from 3000 feet below to
3500 feet above the requesting aircraft.
The TIS is a ground-based service that displays
nearby aircraft on your 400W/500W-series display.
For the TIS feature to inform you of a nearby aircraft’s
presence, several conditions must be met:
• Your aircraft must be equipped with a Mode S
data link transponder, such as the GTX 330.
• You must be within range of a Mode S radar
that provides the TIS service. Not all Mode S
ground radars provide TIS service.
• The “intruder” aircraft must be equipped with
a transponder, and that transponder must be
turned on. Aircraft that are not equipped with
operating transponders will not be visible to the
Mode S surveillance radar.
• The “intruder” aircraft must be within the TIS
coverage volume for your aircraft. TIS displays
up to eight traffic targets within seven nautical
miles horizontally from the requesting aircraft,
and from 3,000 feet below to 3,500 feet above
the requesting aircraft.
• Both your aircraft and the intruder aircraft must
be visible to the Mode S surveillance radar on
the ground.
Always remember that TIS cannot alert you to
the presence of aircraft that are not equipped with
transponders, nor can it alert you to aircraft that may
be nearby, but obscured from the ground surveillance
radar by intervening terrain.
TIS Coverage Volume (not to scale)
7.0 nm 3,500 ft
3,000 ft
TIS Operation and Symbology
190-00356-30 Rev H

2
TIS Operation and Symbology
Part One: Section 1
How TIS differs from TCAS
The main difference between TIS and TCAS is the
source of surveillance data. TCAS uses an airborne
interrogator with a one-second update rate, while TIS
uses the terminal Mode S ground interrogator and its
Data Link to provide about a ve-second update rate.
The range accuracy of TIS and TCAS is similar.
TIS Limitations
NOTE: This section on TIS Limitations is not compre-
hensive. Garmin recommends the user review the TIS
Limitations section of the Aeronautical Information
Manual, Section 1-3-5.
TIS is NOT intended to be used as a collision
avoidance system and does not relieve the pilot of
responsibility to “see and avoid” other aircraft. TIS
should not be used for avoidance maneuvers during
IMC or other times when there is no visual contact
with the intruder aircraft. TIS is intended only to assist
in visual acquisition of other aircraft in VMC. No rec-
ommended avoidance maneuvers are provided for, nor
authorized, as a direct result of a TIS intruder display
or TIS advisory.
While TIS is a useful aid to visual traffic avoid-
ance, it has some system limitations that must be fully
understood to ensure proper use. Many of these limi-
tations are inherent in secondary radar surveillance.
In other words, the information provided by TIS will
be no better than that provided to ATC. TIS will only
display aircraft with operating transponders installed.
TIS relies on surveillance of the Mode S radar,
which is a “secondary surveillance” radar similar to the
ATCRBS. TIS operation may be intermittent during
turns or other maneuvering. TIS is dependent on
two-way, “line-of-sight” communication between the
aircraft and the Mode S radar. Whenever the structure
of the client aircraft comes between the transponder
antenna (usually located on the underside of the air-
craft) and the ground-based radar antenna, the signal
may be temporarily interrupted. Other limitations and
anomalies associated with TIS are described in the
AIM, Section 1-3-5.
Garmin is not responsible for Mode S geo-
graphical coverage. Operation of the ground
stations is the responsibility of the FAA. Refer
to the Aeronautical Information Manual for a
Terminal Mode S Radar Site Map covering the
U.S.
NOTE: TIS will be unavailable at low altitudes in many
areas of the U.S., particularly in mountainous regions.
Also, when flying near the “floor” of radar coverage
in a particular area, intruders below the client aircraft
may not be detected by TIS.
TIS information is collected one radar scan prior to
the scan during which the uplink occurs. Therefore,
the surveillance information is approximately ve
seconds old. In order to present the intruders in a “real
time” position, the TIS ground station uses a “predic-
tive algorithm” in its tracking software. This algorithm
uses track history data to extrapolate intruders to
their expected positions consistent with the time of
display in the cockpit. Occasionally, aircraft maneuver-
ing will cause this algorithm to induce errors in the
400W/500W display. These errors primarily affect rela-
tive bearing information and trafc target track vector
(it will lag); intruder distance and altitude will remain
relatively accurate and may be used to assist in “see
190-00356-30 Rev H

3
TIS Operation and Symbology
Part One: Section 1
and avoid.” Some of the more common examples of
these errors follow:
• When client or intruder aircraft maneuvers
excessively or abruptly, the tracking algorithm
may report incorrect horizontal position until
the maneuvering aircraft stabilizes.
• When a rapidly closing intruder is on a course
that crosses the client aircraft course at a shal-
low angle (either overtaking or head on) and
either aircraft abruptly changes course within
¼ NM, TIS may display the intruder on the
opposite side of the client than it actually is.
These are relatively rare occurrences and will
be corrected in a few radar scans once the course
has stabilized.
Improving TIS
Users of TIS can render valuable assistance in
the correction of malfunctions by reporting their
observations of undesirable performance. Reporters
should identify the time of observation, location, type
and identity of aircraft, and describe the condition
observed; the type of transponder processor and soft-
ware in use can also be useful information. Since TIS
performance is monitored by maintenance personnel
other than ATC, it is suggested that malfunctions be
reported in the following ways:
• By telephone to the nearest Flight Service Sta-
tion (FSS) facility.
• By FAA Form 8000-7, Safety Improvement
Report, a postage-paid card designed for this
purpose. These cards may be obtained at FAA
FSSs, General Aviation District Ofces, Flight
Standards District Ofces, and General Avia-
tion Fixed Based Operations.
TIS Symbology
TIS trafc is displayed on the 400W/500W Series
unit according to TCAS symbology, graphically dis-
played on a dedicated graphical page (Traffic Page;
see below), and on the moving Map Page. A Traffic
Advisory (TA) symbol appears as a solid yellow circle
(or half circle on the outer range ring if the traffic is
outside the range of the dedicated Trafc Page). Prox-
imity Advisories (PA) are displayed as a solid diamond,
and other traffic is displayed as an open diamond. PA
and other traffic is normally displayed in white, or it
may be alternatively configured for display in cyan.
When configured for cyan, the traffic page range rings
and markings are displayed in white. Altitude devia-
tion from own aircraft altitude is displayed above the
target symbol if traffic is above own aircraft altitude,
and below the symbol if they are below own aircraft
altitude. Altitude trend is displayed as an up arrow
(> +500 ft/min), down arrow (< -500 ft/min), or no
symbol if less than 500 ft/min rate in either direction.
• Trafc Advisories (TA)—Yellow
• Proximity Advisories (PA)—White
(may be configured as Cyan)
• Other—White (may be congured as Cyan)
190-00356-30 Rev H

4
TIS Operation and Symbology
Part One: Section 1
Own Aircraft
“Other” Traffic—This symbol represents
traffic detected within the selected display
range that does not generate a TA.
Traffic Advisory (TA)—This symbol is generated when traffic
meets the advisory criteria described in TIS Operational Proce-
dures.
Traffic Ground Track is indicated
on the 400W/500W display by a
“target track vector”, a short line
displayed in 45-degree increments.
This vector shows the flight direc-
tion of the traffic.
The TIS audio alert is generated from the
GTX 330 whenever the number of Traffic Ad-
visories on the 400W/500W display increases
from one scan to the next. Limiting Traffic
Advisories only reduces the “nuisance” alerting
due to proximate aircraft. For example, when
the first Traffic Advisories appears on the TIS
display, the user is alerted audibly. So long as
a single aircraft remains on the TIS display, no
further audio alert is generated. If a second (or
more) aircraft appears on the display, a new
audio alert is sounded.
If the number of Traffic Advisories on the TIS
display decreases and then increases, a new
audio alert is sounded. The TIS audio alert is
also generated whenever TIS service becomes
unavailable. The volume, pitch, and duration
of the audio alert (including the choice between
a male or female voice) is configured during
installation.
The following TIS audio alerts are available:
• “Traffic” —TIS traffic alert is received.
• “Traffic Not Available” — TIS service is not
available or out of range.
190-00356-30 Rev H

5
Part One: Section 2
TIS Controls and Display
Section 2: Control and Display
TIS Traffic Display Status and Pilot Response
• STBY — When the 400W/500W displays STBY
in the upper right hand corner of the display the
TIS system is in standby mode and cannot display
traffic data.
• OPER — When the 400W/500W displays OPER
in the upper right hand corner of the display the
TIS system is in operational mode and available
to display traffic on the Traffic or Map Page.
• AGE — If traffic data are not refreshed within
6 seconds, an age indicator (e.g., “AGE 00:06”)
is displayed in the lower right corner of the dis-
play (when displaying traffic). The pilot should
be aware that the quality of displayed traffic is
reduced in this condition.
• TRFC CST — If data are still not received between
six and twelve seconds, the “TRFC CST” (trafc
coasting) banner located above the AGE timer will
indicate that displayed traffic is held even though
the data are not current. The pilot should be aware
that the quality of displayed traffic is reduced in
this condition.
Traffic Age Indication showing “traffic coasting”.
• TRFC RMVD — If data are still not received after
twelve seconds, the “TRFC RMVD” banner will
indicate that traffic has been removed from the
display due to the age of the data being too old
to “coast” (for the time period after 12 seconds
from the last receipt of a TIS message). The pilot
should be aware that traffic may be present but
not shown.
Traffic Page displaying “TRFC RMVD”
banner.
• UNAVAIL — After a 60 second period elapses
with no data, TIS is considered to be unavailable.
This state is indicated by the text “UNAVAIL”.
The pilot should be aware that “UNAVAIL” could
indicate a TIS coverage limitation due to a line-
of-sight situation, a low altitude condition, no
TIS service, or a result of flying directly over the
radar site providing coverage (cone of silence).
• NO DATA — “NO DATA” is displayed when no
data are being received from the GTX 330. The
pilot should be aware that this status may be a
normal mode of operation in a dual transpon-
der installation where the GTX 330 with TIS is
not the selected transponder. The GTX 330 may
not be powered on.
• DATA FAIL — “DATA FAIL” is displayed when
data are being received from GTX 330, but there
was a failure detected in the data stream. The
pilot should see the dealer for corrective action.
• FAILED — “FAILED” is displayed when the
GTX 330 has indicated it has failed. The pilot
should see the dealer for corrective action.
190-00356-30 Rev H

6
Part One: Section 2
TIS Controls and Display
Traffic Ground Track
Trafc ground track is indicated in the
400W/500W display by a “target track vector”, a short
line displayed in 45° increments, extending in the
direction of target movement.
Traffic Target Track Vector.
Traffic Warning Window
When the unit is on any page (other than the
NAV Trafc Page or when a TAWS/Terrain, or Dead
Reckoning pop-up is displayed) and a trafc threat is
imminent, the Traffic Warning Window is displayed.
The Traffic Warning Window shows a small thumb-
nail map which can take the user to the Trafc Page
by pressing ENT, or go back to the previous page by
pressing CLR.
Traffic Warning Window
NOTE: The Traffic Warning Window is disabled when
the aircraft ground speed is less than 30 knots or when
an approach is active.
Traffic Page
TIS Trafc data are displayed on two 400W/500W
Series unit pages, the Traffic Page and the Map Page.
The 500W Series unit can also be congured to
display a trafc thumbnail window below the VLOC
frequency window. Unlike other forms of trafc, TIS
traffic does not require heading data to be valid on the
map. The only difference between TIS and other traffic
data occurs on the Traffic Page. If heading is available,
then the traffic data are compensated and displayed
as heading-up. If it’s not available, the Traffic Page is a
track-up display. It is labeled on the upper portion of
the Traffic Page.
Traffic Page Display Range
Various display ranges can be selected for optimal
display of TIS traffic information.
To change the display range on the Traffic Page:
Press RNG to zoom through the range selec-
tions which are: 12/6 NM, 6/2 NM, and
2 NM.
190-00356-30 Rev H

7
TIS Controls and Display
Part One: Section 2
Map Page
TIS traffic is displayed on the Map Page in addition
to the Traffic Page.
The Map Page displaying traffic.
Configuring TIS Traffic Data on the Map Page
To configure TIS traffic on the Map Page:
1. Turn the small right knob to select the Map
Page.
2. Press the MENU key.
Turn the small right knob to select “Setup
Map?”
3. The flashing cursor highlights the GROUP field.
Turn the small right knob to select “Traffic” and
press ENT.
4. Turn the large right knob to
select the desired Traffic Mode
option. Turn the small right knob
to select the desired option and
press ENT. Repeat the step for
Traffic Symbol and Traffic Label.
5. Press CLR to return the Map Page.
The traffic mode selection menu allows the user to
choose from the following:
• All trfc - All trafc is displayed on the Map Page.
• TA/PA - Only trafc advisories and proximity
advisories are displayed on the Map Page.
• TA only - Only trafc advisories are displayed on
the Map Page.
From the Map Page you can display trafc in
a thumbnail format in any of the top three (400W
Series) or four (500W Series) data elds on the right
side of the Map Page.
Thumbnail Traffic displayed on the
GNS 430W.
NOTE: The thumbnail will display traffic
coasting “TRFC CST” or traffic removed
“TRFC RMVD” in the lower right when TIS
messages have been missed.
To display Thumbnail Traffic on the Map Page:
1. Turn the small right knob to select the Map
Page.
2. Press the MENU key and display the Page Menu.
3. Turn the small right knob to select “Change
Fields?” and press ENT.
4. Select one of the top three (400W Series) or four
(500W Series) configurable fields. Select ‘TRFC’
from the Select Field Type List and press ENT. Note
that the thumbnail range defaults to 6 NM and
cannot be changed.
190-00356-30 Rev H

8
TIS Controls and Display
Part One: Section 2
Highlighting TIS Traffic Using Map Page Panning
Another Map Page feature is panning, which allows
you to move the map beyond its current limits without
adjusting the map scale. When you select the panning
function — by pressing the small right knob — a
target pointer will flash on the map display. A window
also appears at the top of the map display showing
the latitude/longitude position of the pointer, plus the
bearing and distance to the pointer from your present
position.
Displaying traffic range and altitude separa-
tion using the Map Panning feature.
To activate the panning feature and pan the map
display:
1. Press the small right knob to activate the panning
target pointer.
2. Turn the small right knob to move up (turn clock-
wise) or down (counterclockwise).
3. Turn the large right knob to move right (turn
clockwise) or left (counterclockwise).
4. To cancel the panning function and return to your
present position, press the small right knob.
When the target pointer is placed on traffic, the
traffic range and altitude separation are displayed.
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TIS Operational Procedures
Part One: Section 3
Section 3: TIS Operational Procedures
Introduction
TIS warns the user with voice and visual traffic
advisories whenever it predicts an intruder to be a
threat (see illustration). Voice and visual data are sent
from the GTX 330. The user should not start evasive
maneuvers using information from the 400W/500W
display or on a traffic advisory only. The display and
advisories are intended only for assistance in visually
locating the trafc, due to the lack in resolution and
coordination ability. The flight crew should attempt
to visually acquire the intruder aircraft and maintain
a safe separation in accordance with the regulatory
requirements and good operating practice. If the flight
crew cannot visually acquire the aircraft, they should
contact ATC to obtain any information that may assist
concerning the intruder aircraft. Based on the above
procedures, minor adjustment to the vertical ight
path consistent with air traffic requirements are not
considered evasive maneuvers.
Power-Up Test
The TIS interface performs an automatic test
during power-up.
• If the system passes the power-up test, the
Standby Screen appears on the Traffic Page.
• If the system passes the power-up test and the
aircraft is airborne (as determined by system
configuration at the time of installation, see
your installer for detailed criteria information),
traffic is displayable on the Traffic Page in oper-
ating mode.
• If the system fails the power-up test, the “NO
DATA”, “DATA FAIL”, or “FAILED” message
is displayed. See your installer for corrective
action if the “DATA FAIL”, or “FAILED” message
is displayed. The “FAILED” message indicates
the GTX 330 has failed. The “DATA FAIL” mes-
sage indicates data are being received from the
GTX 330 but a failure was detected in the data
stream. The “NO DATA” message indicates that
data are not being received from the GTX 330.
NOTE: “NO DATA” may be a normal mode of opera-
tion in a dual transponder installation where the GTX
330 with TIS is not the selected transponder.
• UNAVAIL — When a 60 second period
elapses with no data, TIS is considered to be
unavailable. This state is indicated by the text
“UNAVAILABLE” (500W Series) and “UNAVAIL”
(400W Series). The pilot should be aware
that “UNAVAIL” could indicate a TIS coverage
limitation due to a line-of-sight situation, a low
altitude condition, no TIS service, or a result
of flying directly over the radar site providing
coverage (cone of silence).
Conditions for Traffic Advisories
The following condition causes TIS to display a Traffic
Advisory (TA) on the 400W/500W Series unit:
• The intruder aircraft approaches your aircraft on
a course that will intercept (defined by a 0.5 NM
horizontal radius and a relative altitude of ± 500
feet) your course within 34 seconds.
0.5 nm
Intruder Aircraft
+ 500 ft
This area within 34 seconds - 500 ft
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TIS Operational Procedures
Part One: Section 3
Manual Override
The user can manually switch between standby
(STBY) and operating (OPER) mode of operation to
manually override automatic operation.
To place the display into operating mode from the
standby mode (to display TIS traffic):
1. Turn the cursor on and highlight “STBY”.
2. Turn the small right knob to select
“OPER?”.
3. Press ENT to confirm.
To place the display into standby mode from
operating mode (to stop displaying TIS traffic):
1. Turn the cursor on and highlight “OPER”.
2. Turn the small right knob to select “STBY?”
3. Press ENT to confirm.
“DATA FAIL” Message
The ‘NO DATA’ message indicates that data
are not being received from the GTX 330.
NOTE: This may be a normal mode of opera-
tion in a dual transponder installation where
the GTX 330 with TIS is not the selected
transponder.
Flight Procedures
Once the aircraft is airborne (determined by system
configuration at the time of installation) the system
switches from standby mode to operating mode. The
400W/500W Series unit displays OPER in the upper
right hand corner of the display and begins to display
traffic on the Traffic or Map Page.
The TIS Traffic Advisory (TA) should alert the crew
to use additional vigilance to identify the intruding
aircraft. Any time the traffic symbol becomes a yellow
circle or a voice warning is announced, conduct a
visual search for the intruder. If successful, maintain
visual contact to ensure safe operation. See Section 2:
Control and Display for a description of pilot responses
to TIS display messages.
After Landing
Once the aircraft is “ground-borne” (determined
by system configuration at the time of installation)
the system switches from operating mode to standby
mode. The 400W/500W Series unit displays “STBY”.
As described previously, both the standby and operat-
ing modes can be manually overridden by the display
controls.
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XM Radio Introduction
Part Two: Section 1
Part Two:
XM Radio Interface
Section 1: Introduction
Overview
The GDL 69is a remote sensor that receives
broadcast weather data from a data service of XM Sat-
ellite Radio, Inc. The GDL 69A is similar to the GDL
69, but also receives audio entertainment broadcasts
from another service of XM Satellite Radio. The 400W
and 500W series units serve as the display and control
head for your remotely mounted GDL 69/69A satellite
radio.
Before the GDL 69/69A can be used, the unit
must be activated by XM Satellite Radio with a service
subscription through XM Satellite Radio. Please note
that the GDL 69 is a weather data link. The GDL 69A
is a weather data link and audio receiver. The data link
service and the audio entertainment services must be
activated separately.
Your GDL 69 or GDL 69A is shipped with one
or two radio hardware identifications, respectively.
These IDs serve as identication codes for your XM-
equipped GDL 69/69A and are needed in the activa-
tion process. The ID(s) is (are) attached to the Activa-
tion Instructions and printed on a label on the back of
the unit. The IDs can also be retrieved through your
unit in the XM Information page of the Aux function.
Contact your dealer or customer service if you are
unable to locate the radio hardware IDs.
Weather and/or audio data from your GDL 69/69A
are provided by XM Satellite Radio, a company
separate and independent from Garmin Corporation.
Have your radio hardware IDs ready before contact-
ing XM Satellite Radio. During the process, you can
select services for subscription. Keep in mind that the
GDL 69 has no audio capability, audio services will not
be available with the unit.
Follow the GDL 69/69A XM Satellite Radio Activa-
tion Instructions (190-00355-04) enclosed with your
GDL 69/69A unit to activate the XM products.
XM Radio Pages
To reach the XM pages:
1. From any page, press and hold CLR to select
the Default NAV Page. (You may skip this step
if you are already viewing any of the main
pages.)
2. Turn the large right knob to select the AUX
page group. “AUX” appears in the lower right
corner of the screen.
3. Turn the small right knob to select the XM
Audio, XM Information, or XMWX Timestamps
pages.
XM Weather page is displayed in the NAV page
group. The XM Audio function pages are displayed in
the AUX page group.
XM NAV Pages
When a GDL 69 or GDL 69A is installed, the fol-
lowing XM-related pages appear in the NAV group of
pages:
• Map Page. The Map page (the second page
in the NAV page group) becomes capable of
displaying weather data and the boundaries
of areas with Temporary Flight Restrictions
(TFRs).
• XM Weather Page. The XM Weather page is
inserted in the NAV page group, immediately
before the Terrain page. This page is like the map
page, but can show NEXRAD weather data, col-
ored ags showing which airports have METARs
(current weather observations—Meteorological
Aerodrome Reports), Lightning (LTNG) reports,
Cell Movement, or Winds Aloft.
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Part Two: Section 2
XM Weather
XM WPT Pages
When a GDL 69 or GDL 69A is installed, two XM-
related pages are added to “airport” pages in the WPT
page group:
• Textual METAR Page. The Textual METAR
page shows the text of the most recent METAR
(Meteorological Aerodrome Report) that has
been received for an airport.
• TAF Page. The TAF page shows the text of the
most recent TAF (Terminal Aerodrome Fore-
cast) that has been received for an airport.
XM AUX Pages
When a GDL 69 or GDL 69A is installed, the fol-
lowing XM pages appear in the AUX group of pages:
• XM Audio Page (GDL 69A only). See Section 4
below for a description of this page.
• XM Information Page. This page contains
information that you will use when activat-
ing your XM satellite radio subscription. It
also reports the GDL 69/69A’s software version
number.
• XM Weather Timestamp Pages. This page
show timestamp data for the most recently
received XM weather data.
Section 2: XM Weather
The XM Weather Function is capable of displaying
graphical weather information through the XM Satel-
lite Radio Service when activated in the optional instal-
lation of the GDL 69/69A. Next Generation Weather
Radar (NEXRAD), METARs symbols (METAR),
Lightning (LTNG), Cell Movement (CELL MOVE),
and Winds Aloft (WINDS) are displayed on the NAV
pages. The types of products available depend on the
subscription service with XM Satellite Radio.
Once you have activated an aviation weather ser-
vice from XM Satellite Radio, the 400W/500W series
unit can display the following aviation-related data:
• NEXRAD. An indication of the intensity
of weather radar echoes from the National
Weather Service’s network of NEXRAD (NEXt
generation RADar) sites can be shown on the
XM Weather Page and can optionally be over-
laid on the Map page. (Both these pages are in
the NAV page group.) Canadian Radar may also
be available.
• Radar Coverage. Whenever NEXRAD is
shown, a cross-hatch pattern indicates the limits
of NEXRAD radar coverage. The cross-hatched
area shows where NEXRAD information is
unavailable.
• Lightning (LTNG). When enabled, lightning
strikes and cells are shown as yellow “+”
signs. Lightning information indicates the
location of cloud-to-ground lightning strikes.
• Cell Movement (CELL MOVE). When
enabled, Cell Movement shows the storm
cells identified by the ground-based system.
The movement is depicted by an arrow. The
tip of the arrow represents where the cell is
expected to be in 10 minutes from the time
the cell location was determined.
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Part Two: Section 2
XM Weather
• Winds Aloft (WINDS). The Winds Aloft
selection provides the pilot with wind speed
and direction. The winds at a given altitude
are selected in the Winds Aloft Alt below the
WINDS selection. The selected altitude is
shown along with the product time.
• Textual Meteorological Aerodrome Reports
(METARs). When you zoom in to show the
airport symbol associated with the colored flag
for a graphical METAR, and move the Map
Pointer to highlight that airport, you can then
press ENT to see the Textual METAR page for
that airport. The Textual METAR page is one of
the airport pages of the WPT page group.
• Graphical Meteorological Aerodrome
Reports (METARs). The XM Weather page (in
the NAV page group) can show colored flags
to indicate the level of current weather condi-
tions at those airports for which textual METAR
reports are available. The flags are color-coded
to indicate the severity of the current weather at
the airport: cyan for VFR conditions, green for
Marginal VFR conditions, yellow for IFR condi-
tions, or magenta of Low IFR conditions.
• Terminal Aerodrome Forecast (TAFs). A
TAF page is added among the airport pages of
the WPT page group. The TAF page differs from
the Textual METAR page in that it describes
forecast future weather conditions rather than
current conditions.
• Temporary Flight Restrictions (TFRs). The
boundaries of areas with TFRs are outlined in
yellow on the Map and XM Weather pages of
the NAV page group. In the 500W-series, TFR
boundaries are also shown on the NAV main
page. You can obtain more information about a
TFR by bringing up the map cursor, moving the
map cursor to within the yellow outlined area,
and pressing the ENT key.
Weather Product Age
The age of the displayed weather product—or the
effective time of Winds Aloft predictions—is shown
in the upper right corner of the display. For example,
if NEXRAD is displayed, “0:05” indicates that the data
are five minutes old. If Winds Aloft predictions are
being displayed, “10:00” indicates the effective time
for the displayed prediction is 10:00 AM.
The data for each XM Weather product are updated
regularly from the GDL 69/69A. XM Weather products
expire after the following intervals:
Product Expiration Interval
METARs 90 minutes
NEXRAD/Radar Coverage 30 minutes
TFRs 60 minutes
TAFs 60 minutes
Lightning 30 minutes
SCITs 30 minutes
Winds Aloft Predictions 90 minutes
When the age of the displayed XM Weather prod-
uct reaches one half of its expiration time, the color
of the displayed time changes from green to amber.
Expired XM Weather products are never displayed. In
the unlikely event that the data should expire before
a fresh update is received, the time will be dashed out
and the data removed from the display.
XM NEXRAD Weather
The National Weather Service’s network of WSR-
88D Doppler weather surveillance radars—also called
NEXRAD, for Next Generation Radar—has greatly
improved the detection of meteorological events such
as thunderstorms, tornados, and hurricanes. An exten-
sive network of NEXRAD weather radars provides
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Part Two: Section 2
XM Weather
almost complete coverage of the continental United
States, Alaska, and Hawaii. The unobstructed range of
each NEXRAD is up to 250 nautical miles.
When enabled, composite data from all the
NEXRAD radar sites in the United States is shown.
This data are composed of the maximum reectivity
from the individual radar sweeps. Canadian radar may
also be displayed. The display is color-coded to indi-
cate the weather level severity. Information about with
sites are operational or off-line is also available.
To display NEXRAD weather on the Map page:
1. With the Map page (second page of the NAV
page group) displayed, press the MENU key.
The Page Menu for the Map page appears.
NEXRAD is also available on the Nav 1 page
of the 500W series.
2. Turn the large right knob to highlight“Display
US NEXRAD?” or “Display CN NEXRAD?,” and
then press ENT. (If “Hide US NEXRAD?” or
“Hide CN NEXRAD?) appears, NEXRAD radar
data are already enabled; just press MENU
again to exit the Page Menu.)
NOTE: US and Canadian radar may not be displayed
simultaneously.
To display NEXRAD weather on the XM Weather
page:
1. With the XM Weather page (the third page of
the NAV page group) displayed, look at the
upper left corner of the page. Under the page
title (“XM Weather”) either “NEXRAD-US,”
“NEXRAD-CN,” or another weather product
appears. If the word is “NEXRAD-US” or
“NEXRAD-CN,” do nothing; NEXRAD weather
is already being displayed.
2. If the word in the upper left corner of the
page is another weather product (rather than
“NEXRAD-US” or “NEXRAD-CN”), press the
small right (CRSR) knob to highlight that
word. Then turn the small right knob to
change to “NEXRAD-US” or “NEXRAD-CN.”
3. Press the small right knob again to bring
down the cursor (that is, to stop the blinking
highlighting of “NEXRAD-US” or “NEXRAD-
CN”) and retain the selection.
NEXRAD U.S. and Canadian Coverage
SW Version 3.30 adds the ability to display
Canadian NEXRAD on the moving map pages and
the XM Weather page. The display has been modied
to specify whether the NEXRAD displayed is U.S. or
Canadian.
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