Garmin MX20 GPS Receiver User Manual

MX20
TM
color Multi-Function Display
pilot’s guide
© 2005 Garmin Ltd. or its subsidiaries
Garmin International, Inc.
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Tel. 913/397.8200 or 800/800.1020
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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
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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.
October 2005
(Garmin P/N 190-00479-00 Rev D)
Part Number 560-1026-09 Rev. A
Printed in the USA
Introduction
History of Revisions
Date
January 2000
February 2000
April 2000
August 2000
December 2000
July 2001
April 2002
April 2002
June 2002
November 2002
February 2003
June 2003
September 2003
January 2004
May 2004
November 2004
February 2005
April 2005
May 2005
November 2005
Software Version
1.0
1.1
1.2
2.0
2.2
2.3
3.0
3.1
3.2
4.0
4.1
5.0
5.0, 5.1
5.2
5.3
5.4, 5.5
5.5
5.6
5.6
5.7
Manual Revision
Capstone Release
GA Release
560-1026-00a
560-1026-01
560-1026-02
560-1026-03
560-1026-04
560-1026-04a
560-1026-04b
560-1026-05
560-1026-05a
560-1026-05 Rev B
560-1026-05 Rev C
560-1026-05 Rev D
560-1026-06 Rev 560-1026-07 Rev 560-1026-07 Rev A
560-1026-08 Rev A
560-1026-08 Rev B
560-1026-09 Rev A
Ordering Information
To receive additional copies of this MX20 Pilot’s Guide, order part #560-1026-09 Rev A (Garmin P/N 19000479-00 Rev D). The MX20 Installation Guide is part #560-1025-xx. The MX20 Quick Reference Guide is
part #561-0263-xx.
i
Introduction
End User License Agreement (“EULA”)
You have acquired a device (MX20) which includes software licensed by Garmin International, Inc. or its subsidiaries (Garmin) from one or more software licensors Garmin’s Software Suppliers. Such software products, as well as associated media, printed
materials, and “online” or electronic documentation (“SOFTWARE”) are protected by international intellectual property laws and treaties. The SOFTWARE is licensed, not sold. All rights reserved.
• This EULA is valid and grants the end-user rights ONLY if the SOFTWARE is genuine and a genuine Certificate of Authenticity for the SOFTWARE is included. For more information on identifying whether your software is genuine, please see http://www.
microsoft.com/piracy/howtotell.
• IF YOU DO NOT AGREE TO THIS END USER LICENSE AGREEMENT (“EULA”), DO NOT USE THE MX20 OR COPY THE SOFTWARE. INSTEAD, PROMPTLY CONTACT GARMIN FOR INSTRUCTIONS ON RETURN OF THE UNUSED MX20) FOR A
REFUND. ANY USE OF THE SOFTWARE, INCLUDING BUT NOT LIMITED TO USE ON THE MX20, WILL CONSTITUTE YOUR AGREEMENT TO THIS EULA (OR RATIFICATION OF ANY PREVIOUS CONSENT).
• GRANT OF SOFTWARE LICENSE. This EULA grants you the following license:
> You may use the SOFTWARE only on the MX20.
> Restricted Functionality. You are licensed to use the SOFTWARE to provide only the limited functionality (specific tasks or processes) for which the MX20 has been designed and marketed by Garmin. This license specifically prohibits any other use of
the software programs or functions, or inclusion of additional software programs or functions that do not directly support the limited functionality on the MX20. Notwithstanding the foregoing, you may install or enable on a MX20, systems utilities, resource
management or similar software solely for the purpose of administration, performance enhancement and/or preventive maintenance of the MX20.
> If you use the MX20 to access or utilize the services or functionality of Microsoft Windows Server products (such as Microsoft Windows Server 2003), or use the MX20 to permit workstation or computing devices to access or utilize the services or
functionality of Microsoft Windows Server products, you may be required to obtain a Client Access License for the MX20 and/or each such workstation or computing device. Please refer to the end user license agreement for your Microsoft Windows Server
product for additional information.
> NOT FAULT TOLERANT. THE SOFTWARE IS NOT FAULT TOLERANT. GARMIN HAS INDEPENDENTLY DETERMINED HOW TO USE THE SOFTWARE IN THE MX20, AND MS HAS RELIED UPON GARMIN TO CONDUCT SUFFICIENT
TESTING TO DETERMINE THAT THE SOFTWARE IS SUITABLE FOR SUCH USE.
> NO WARRANTIES FOR THE SOFTWARE. THE SOFTWARE is provided “AS IS” and with all faults. THE ENTIRE RISK AS TO SATISFACTORY QUALITY, PERFORMANCE, ACCURACY, AND EFFORT (INCLUDING LACK OF NEGLIGENCE) IS
WITH YOU. ALSO, THERE IS NO WARRANTY AGAINST INTERFERENCE WITH YOUR ENJOYMENT OF THE SOFTWARE OR AGAINST INFRINGEMENT. IF YOU HAVE RECEIVED ANY WARRANTIES REGARDING THE MX20 OR THE SOFTWARE,
THOSE WARRANTIES DO NOT ORIGINATE FROM, AND ARE NOT BINDING ON, MS.
> No Liability for Certain Damages. EXCEPT AS PROHIBITED BY LAW, MS SHALL HAVE NO LIABILITY FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL OR INCIDENTAL DAMAGES ARISING FROM OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THE SOFTWARE. THIS LIMITATION SHALL APPLY EVEN IF ANY REMEDY FAILS OF ITS ESSENTIAL PURPOSE. IN NO EVENT SHALL MS BE LIABLE FOR ANY AMOUNT IN EXCESS OF U.S. TWO HUNDRED FIFTY DOLLARS
(U.S.$250.00).
> Restricted Uses. The SOFTWARE is not designed or intended for use or resale in hazardous environments requiring fail-safe performance, such as in the operation of nuclear facilities, aircraft navigation or communication systems, air traffic control, or
other devices or systems in which a malfunction of the SOFTWARE would result in foreseeable risk of injury or death to the operator of the device or system, or to others.
> Limitations on Reverse Engineering, Decompilation, and Disassembly. You may not reverse engineer, decompile, or disassemble the SOFTWARE, except and only to the extent that such activity is expressly permitted by applicable, law notwithstanding
this limitation.
> SOFTWARE as a Component of the MX20 - Transfer. This license may not be shared, transferred to or used concurrently on different computers. The SOFTWARE is licensed with the MX20 as a single integrated product and may only be used with
the MX20. If the SOFTWARE is not accompanied by a MX20, you may not use the SOFTWARE. You may permanently transfer all of your rights under this EULA only as part of a permanent sale or transfer of me MX20, provided you retain no copies of the
SOFTWARE. If the SOFTWARE is an upgrade, any transfer must also include all prior versions of the SOFTWARE. This transfer must also include the Certificate of Authenticity label. The transfer may not be an indirect transfer, such as a consignment. Prior
to the transfer, the end user receiving the SOFTWARE must agree to all the EULA terms.
> Consent to Use of Data. You agree that MS, Microsoft Corporation and their affiliates may collect and use technical information gathered in any manner as part of product support services related to the SOFTWARE. MS, Microsoft Corporation and their
affiliates may use this information solely to improve their products or to provide customized services or technologies to you. MS, Microsoft Corporation and their affiliates may disclose this information to others, but not in a form that personally identifies
you.
> Internet Gaming/Update Features. If the SOFTWARE provides, and you choose to utilize, the Internet gaming or update features within the SOFTWARE, it is necessary to use certain computer system, hardware, and software information to implement
the features. By using these features, you explicitly authorize MS, Microsoft Corporation and/or their designated agent to use this information solely to improve their products or to provide customized services or technologies to you. MS or Microsoft Corporation may disclose this information to others, but not in a form that personally identifies you.
ii
Introduction
> Internet-Based Services Components. The SOFTWARE may contain components that enable and facilitate the use of certain Internet -based services. You acknowledge and agree that MS, Microsoft Corporation or their affiliates may automatically check
the version of the SOFTWARE and/or its components that you are utilizing and may provide upgrades or supplements to the SOFTWARE that may be automatically downloaded to your MX20. Microsoft Corporation or their affiliates do not use these features
to collect any information that will be used to identify you or contact you. For more information about these features, please see the privacy statement at http://go.imcrosoft.com/fwlmk/?LinkId=25243.
> Links to Third Party Sites. You may link to third party sites through the use of the SOFTWARE. The third party sites are not under the control of MS or Microsoft Corporation, and MS or Microsoft are not responsible for the contents of any third party
sites, any links contained in third party sites, or any changes or updates to third party sites, MS or Microsoft Corporation is not responsible for webcasting or any other form of transmission received from any third party sites. MS or Microsoft Corporation are
providing these links to third party sites to you only as a convenience, and the inclusion of any link does not imply an endorsement by MS or Microsoft Corporation of the third party site.
> Notice Regarding Security. To help protect against breaches of security and malicious software, periodically back up your data and system information, use security features such as firewalls, and install and use security updates.
> No Rental/Commercial Hosting. You may not rent, lease, lend or provide commercial hosting services with the SOFTWARE to others.
> Separation of Components. The SOFTWARE is licensed as a single product. Its component parts may not be separated for use on more than one computer.
> Additional Software/Services. This EULA applies to updates, supplements, add-on components, product support services, or Internet-based services components (“Supplemental Components”), of the SOFTWARE that you may obtain from Garmin,
MS, Microsoft Corporation or their subsidiaries after the date you obtain your initial copy of the SOFTWARE, unless you accept updated terms or another agreement governs. If other terms are not provided along with such Supplemental Components and
the Supplemental Components are provided to you by MS, Microsoft Corporation or their �osoft Corporation or their subsidiaries
providing the Supplemental Components will be the licensor with respect to such S�W. THE SUPPLEMENTAL
COMPONENTS AND ANY (IF ANY) SUPPORT SERVICES RELATED TO THE SUPPLEMENTAL COMPONENTS ARE PROVIDED AS IS AND WITH ALL FAULTS. ALL OTHER DISCLAIMERS, LIMITATION OF DAMAGES, AND SPECIAL PROVISIONS
PROVIDED BELOW AND/OR OTHERWISE WITH THE SOFTWARE SHALL APPLY TO SUCH SUPPLEMENTAL COMPONENTS. MS, Microsoft Corporation or their subsidiaries reserve the right to discontinue any Internet-based services provided to you
or made available to you through the use of the SOFTWARE.
> Recovery Media. If SOFTWARE is provided by Garmin on separate media and labeled “Recovery Media” you may use the Recovery Media solely to restore or reinstall the SOFTWARE originally installed on the MX20.
> Backup Copy. You may make one (1) backup copy of the SOFTWARE. You may use this backup copy solely for your archival purposes and to reinstall the SOFTWARE on the MX20. Except as expressly provided in this EULA or by local law, you may
not otherwise make copies of the SOFTWARE, including the printed materials accompanying the SOFTWARE. You may not loan, rent, lend or otherwise transfer the backup copy to another user.
> End User Proof of License. If you acquired the SOFTWARE on a MX20, or on a compact disc or other media, a genuine Microsoft “Proof of License’”/Certificate of Authenticity label with a genuine copy of the SOFTWARE identifies a licensed copy of
the SOFTWARE. To be valid, the label must be affixed to the MX20, or appear on Garmin’s software packaging. If you receive the label separately other than from Garmin, it is invalid. You should keep the label on the MX20 or packaging to prove that you
are licensed to use the SOFTWARE.
> Product Support. Product support for the SOFTWARE is not provided by MS, Microsoft Corporation, or their affiliates or subsidiaries. For product support, please refer to Garmin’s support number provided in the documentation for the MX20. Should
you have any questions concerning this EULA or if you desire to contact Garmin for any other reason, please refer to the address provided in the documentation for the MX20.
> Termination. Without prejudice to any other rights�oy all copies of the SOFTWARE and all of its component parts.
> EXPORT RESTRICTIONS. You acknowledge that SOFTWARE is subject to U.S. and European Union export jurisdiction. You agree to comply with all applicable international and national laws that apply to the SOFTWARE, including, the U.S. Export
Administration Regulations, as well as end-user, end-use and destination restrictions issued by U.S. and other governments. For additional information see http://www.microsoft.com/exporting/ .
iii
Introduction
Welcome…
Accessories and Packing List
To obtain accessories for your MX20 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 MX20 handy, connect to
our web site (www.garmin.com) and look for our
Product Registration link on the home page.
The MX20 display lens is coated with a special antireflective 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.
Welcome to a new era of aviation navigation. Once again, Garmin has set new standards in features and ease
of use for the general aviation public. The MX20 Multi-Function Display provides a focal point for integrating
many of your navigation needs in an easy to use and convenient package.
The MX20 presents a wealth of information on its six-inch diagonal, 640x480 pixel, color display. The many
features are organized as distinct functions and are designed to closely mimic the traditional instruments used
in the standard cockpit. Each function allows varying degrees of customization. The custom map function is
customizable so you can create a display for almost any configuration you require. The other functions provide
more limited levels of customization so that they retain the look and feel of the instruments they reflect.
The MX20 is capable of creating powerful overlay views where information from a variety of sources can be
presented simultaneously in proper relationship to each other, thus greatly increasing situational awareness for
the pilot.
You can be confident in knowing that you are the owner of the state-of-the-art in aviation and navigation. The
MX20 architecture is designed to support full expansion for both software and hardware enhancements. This
flexibility protects your investment and allows for the ease of adding new features. Our products are built to
last and to allow the flexibility to meet your needs as they change in the future.
About This Manual
This manual may be used as a summary, a reference, and a learning tool. Information is provided about all of
the functions available to the MX20. Your specific installation may not include all of these functions.
Take a few moments to familiarize yourself with the various sections in this manual. The Getting Started section gives an introduction to the controls, basic operation, and organization of the functions in your MX20. Be
sure to read the Getting Started section to learn the rules for using the MX20. The Detailed Operation section
is the reference for each of the functions in the MX20. Refer to the Detailed Operation section when you want
to get into the details on every function and option along with step-by-step instructions.
Not every function is available in all software versions or in every installations.
iv
Introduction
Limitations
Limitations
The Traffic function is not a collision avoidance system. It is an aid to visual acquisition and does not relieve
the flight crew of their responsibility to “see and avoid.” There are no evasive aircraft maneuvers authorized,
recommended, or provided for as a result of displayed traffic targets. Refer to the traffic sensor documentation
for additional information.
All pilots/operators are reminded that the airborne equipment that displays other ADS-B equipped aircraft
and transponder equipped aircraft via TIS-B is for pilot situational awareness and is not approved as a collision avoidance tool. Any deviation from an air traffic control clearance based on cockpit information must be
approved by the controlling ATC facility prior to commencing the maneuver. Uncoordinated deviations may
place an aircraft in close proximity to other aircraft under ATC control not seen on the airborne equipment and
may possibly result in the issuance of a pilot deviation.
The Terrain function shows you the general terrain elevations relative to your altitude and are advisory in
nature. Individual obstructions may be shown if available in the database. Terrain is displayed from database
information and may therefore contain errors. The Terrain function does not relieve the flight crew of their
responsibility to “see and avoid.” Do not use this information for navigation.
The moving map, weather information, and other displayed information are intended only as aids to situational awareness. The pilot should rely on the appropriate primary means of navigation and consult official
and approved data sources prior to and during each flight.
Refer to your airplane flight manual supplement for more information.
v
Introduction
Table of Contents
Table of Contents
History of Revisions ............................................. i
Ordering Information ........................................... i
Introduction..................................... i
Accessories and Packing List ...............................iv
Welcome… .........................................................iv
About This Manual..............................................iv
Limitations ...........................................................v
Getting Started ..................................................... 1
Functions ............................................................ 1
Controls .............................................................. 3
Power/Brightness ........................................... 3
Function (FN) ............................................... 3
Menu/Enter ................................................... 3
Menu Item .................................................... 4
Data Card ............................................................ 4
Display ................................................................ 5
Annunciations ..................................................... 6
Advisory Flags ............................................... 6
ADS-B Traffic................................................. 6
Skywatch/TCAD/TIS-A Traffic ....................... 6
Terrain .......................................................... 6
Lightning ...................................................... 6
Message Flag ................................................. 7
Basic Operation ................................................... 9
Brightness .......................................................... 9
Rotary Knob Model ....................................... 9
vi
Rocker Switch Model .................................... 9
Power On ..................................................... 9
Pre-Heat Mode .............................................. 9
Start Up Screen ................................................. 10
Confirm Current Baro Correction ...................... 10
Function Selection ............................................ 11
Advisory Hot Key .............................................. 12
Normal Cruise Condition ............................ 12
Viewing the Advisory .................................. 12
Returning To Normal Condition .................. 12
Alert Hot Key .................................................... 13
Options Menu ................................................... 13
Thumbnail Feature ............................................ 13
Traffic on Thumbnail................................... 14
Terrain on the Thumbnail ........................... 14
Obstructions on the Thumbnail .................. 14
Thumbnail Activation.................................. 14
Traffic Information Services (TIS) ...................... 14
Message Log (MSG) ............................................ 18
Custom Map (MAP) ............................................. 19
Auto Zoom ........................................................ 19
Map Scale .......................................................... 19
Pan .................................................................. 20
Info .................................................................. 20
Info In Pan Mode .............................................. 21
Initial Zoom Level ............................................. 21
Custom Map Menu Option Page 1 .................... 21
Flight Plan ......................................................... 21
Map Orientation ................................................ 21
Invert ................................................................ 22
Nav Data ........................................................... 22
Load Chart (Optional) ....................................... 22
Custom Map Menu Option Page 2 .................... 23
Airports ....................................................... 23
VORs................................................................. 23
VOR Highlight ............................................ 23
VOR OBS .......................................................... 24
ILS/Localizer Depiction .............................. 24
NDBs ................................................................ 25
Intersections ...................................................... 25
Airspace ............................................................ 25
Custom Map Menu Option Page 3 .................... 26
Low Airways ..................................................... 26
High Airways .................................................... 26
Water ................................................................ 26
Roads ................................................................ 26
Boundaries ........................................................ 26
Custom Map Menu Option Page 4 .................... 27
Airport Chart .................................................... 27
Terrain .............................................................. 27
Obstructions ..................................................... 28
Traffic ................................................................ 28
Strikes .............................................................. 29
IFR En Route (IFR) Chart Function ....................... 30
IFR Option Page 1 ............................................. 30
Flight Plan ......................................................... 30
Introduction
Table of Contents
Map Orientation ................................................ 30
Invert ................................................................ 31
Nav Data ........................................................... 31
Label ................................................................. 31
IFR Option Page 2 ............................................. 31
Low Airways ..................................................... 31
High Airways .................................................... 31
Airport Chart .................................................... 32
Load Chart ........................................................ 32
VFR Chart (VFR) Function .................................... 33
Flight Plan ......................................................... 33
Map Orientation ................................................ 33
Invert ................................................................ 33
Nav Data ........................................................... 34
Label ................................................................. 34
Split Screen (SPLIT) Function ............................... 35
TAS / TCAD Traffic (TRAF) Function ..................... 36
Traffic Depiction ................................................ 36
Alert Hot Key .................................................... 36
Traffic Alert Pop-Up .......................................... 36
Symbology ........................................................ 37
Vert Smart Key (TAS)......................................... 37
Traffic Status Indicators ..................................... 37
Off Scale ...................................................... 37
Standby (TAS) ............................................. 37
Test (Skywatch) ........................................... 38
Not Displayed ............................................. 38
TAS Fail ...................................................... 38
TAS Data Fail .............................................. 38
TAS Time-Out ............................................. 38
No Bearing Advisories ....................................... 38
TAS Menu Options ............................................ 38
Traffic Alert Mode (Pop-Up/Prompt) ........... 38
Standby Mode ............................................. 38
Self-Test ...................................................... 39
TCAD 9900B Menu Options ............................. 39
Altitude Option (Relative/Pressure) ............. 39
Filter ........................................................... 39
Volume ........................................................ 39
Approach Mode........................................... 39
Mute Duration............................................. 39
Shield .......................................................... 39
Shield Heights ............................................. 40
Shield Ranges .............................................. 40
TCAD 9900BX Menu Options ........................... 40
Altitude Option (Relative/Pressure) ............. 40
Filter ........................................................... 40
Volume ........................................................ 40
Approach Mode........................................... 40
Ground/Flight Mode ................................... 40
ADS-B Traffic (TRAF) Function ............................. 41
Traffic Description ............................................. 43
TIS-B Traffic ................................................ 44
TIS-B Limitations ........................................ 45
Degraded Target .......................................... 46
Surface Targets ........................................... 46
Target Color ................................................ 46
Traffic Altitude Values.................................. 46
Ident (GDL 90 UAT only) ........................... 46
Confirm Code ............................................. 47
Operation .................................................... 47
Traffic Option Page 1 ......................................... 47
Transmit Status ................................................. 48
ADS-B Broadcast Mode Control ......................... 48
Broadcast FID.............................................. 48
Broadcast VFR ............................................. 48
Enter Code (GDL 90 UAT only) ........................ 49
Set 1200 ............................................................ 49
Services ............................................................. 49
Traffic Menu Option Page 2 ............................... 49
Time.................................................................. 49
Traffic Altitude Filter ......................................... 50
Altitude Option (Relative/Pressure) ................. 50
Flight Plan ......................................................... 50
Traffic Map Orientation .................................... 50
Traffic Menu Option Page 3 ............................... 51
Display Mode .................................................... 51
Graphic Display .......................................... 51
Text Display ................................................ 51
Flight ID Editing ............................................... 51
Label ................................................................. 51
TIS-A Traffic (TRAF) Function .............................. 52
Traffic Depiction ................................................ 52
TIS-A Menu Options ......................................... 53
Alert Hot Key (TA Prompt) ......................... 53
Traffic Alert Pop-Up (TA Popup) ................. 53
Operate/Standby ........................................ 53
vii
Introduction
Table of Contents
Symbology ........................................................ 53
Traffic Status Indicators ..................................... 54
Flight Plan (FPL) Function .................................... 55
Terrain (TER) Function ......................................... 56
Internal MX20-Based Terrain............................. 56
Terrain Option Page .......................................... 57
Flight Plan ......................................................... 57
TRK Up Arc/TRK Up 360 .................................. 57
Set Barometer .................................................... 58
TER Data Flag ................................................... 58
External TAWS-Based Terrain Display ............... 58
TAWS Pop-Up Modes........................................ 58
UAT Flight Information Service (FIS) Function ... 59
Text Display ...................................................... 60
Viewing Text ............................................... 60
Clearing Text FIS Messages.......................... 60
Sorting Text FIS Messages ........................... 60
WSI InFlight™ Flight Information Service (FIS) Function ................................................................ 61
Product Times ................................................... 61
Graphical Weather (WX) Display ...................... 62
Graphical WX Overlay Options ................... 62
Menu Options for Overlay Page 1 ............... 63
METARs ...................................................... 63
SIGMETs & AIRMETs.................................. 63
Echo Tops ................................................... 63
Temporary Flight Restrictions (TFRs) .......... 64
US or Canadian Weather Radar ................... 64
viii
Menu Options for Overlay Page 2 ............... 64
Label ........................................................... 64
Flight Plan................................................... 64
Legend ........................................................ 65
Map Detail .................................................. 65
Map Orientation .......................................... 65
Text Display ...................................................... 66
Selecting Text Data ...................................... 66
Smart Key Function .................................... 67
Viewing Text TAFs....................................... 67
Sorting FIS Messages ................................... 68
Status Information............................................. 68
GDL 69/69A Flight Information Service (FIS)
Function ........................................................ 69
Weather Product Zoom Scale............................. 69
Temporary Flight Restrictions (TFRs) ................ 70
NEXRAD Description ........................................ 70
NEXRAD Abnormalities .............................. 70
NEXRAD Limitations .................................. 70
NEXRAD Intensity ...................................... 71
Current ............................................................. 71
NEXRAD ..................................................... 71
METARs ...................................................... 72
Lightning .................................................... 72
Cell Movement ............................................ 72
Cloud Tops.................................................. 73
Echo Tops ................................................... 73
Winds Aloft ................................................. 74
Winds Aloft Altitude ................................... 74
TFR Lbl ....................................................... 74
Label ........................................................... 74
Flight Plan................................................... 74
Legend ........................................................ 75
Map Detail .................................................. 75
Product Times ............................................. 75
Map Orientation .......................................... 76
Forecast............................................................. 77
City ............................................................. 77
Forecast Time .............................................. 77
SIGMET ...................................................... 77
AIRMET ...................................................... 78
Freezing Levels ............................................ 78
County ........................................................ 78
Cyclone ....................................................... 79
Label ........................................................... 79
Flight Plan................................................... 79
Legend ........................................................ 79
Map Detail .................................................. 79
Map Orientation .......................................... 79
Text ................................................................... 80
Selecting Categories and Messages............... 80
View ............................................................ 80
Sorting TAFs and METARs .......................... 81
Temporary Flight Restrictions (TFRs) .......... 81
Status ................................................................ 81
Product Status ............................................. 82
Introduction
Table of Contents
Diagnostics .................................................. 82
Activation .................................................... 82
Activating XM Radio Services ............................ 83
Gather Information ..................................... 83
XM Satellite Radio Activation .................... 83
Lightning Strikes (LT) Function ............................ 84
Lightning Menu Option Page 1 ......................... 84
Flight Plan ......................................................... 84
360/120 ............................................................ 84
Lightning........................................................... 84
Strike .......................................................... 85
Cell ............................................................. 85
Heading Stabilization ........................................ 85
System Data ...................................................... 85
Lightning Menu Option Page 2 ......................... 85
Demo ................................................................ 85
Self-Test ............................................................ 85
Noise Monitor ................................................... 86
Strike Test ......................................................... 86
Antenna Change Message .................................. 86
Chart View (CHART) Function (Optional) ............. 87
Overview........................................................... 87
Chart Data Source ............................................. 88
Data Card .................................................... 88
Chart Geo-Referencing ............................... 88
Chart Overlay in the Custom/IFR Map .............. 89
Selecting the Airport.................................... 89
Loading the Approach Chart ....................... 90
Viewing the Chart as an Overlay ....................... 90
Display of Coverage Area............................. 90
Chart Zooming ............................................ 91
Chart Panning ............................................. 91
Chart Orientation ........................................ 91
Chart Info ................................................... 91
Chart View Function ......................................... 92
Menu Items ....................................................... 93
Search ID .................................................... 93
Select Airport .............................................. 93
Select Chart ................................................. 93
Select Loaded .............................................. 93
Load Current............................................... 94
Airport Surface Charts ....................................... 94
Viewing Surface Charts ............................... 94
Operational Considerations ............................... 95
When to Load a Chart ................................. 95
Flying an Approach ..................................... 95
Approach to Surface Map Transitions .......... 95
Chart NOTAMS ........................................... 96
Important System Limitations ..................... 96
Invert Option .............................................. 96
Typical Operational Scenario ............................. 97
Typical Taxi Scenario ................................... 97
Typical Takeoff Scenario .............................. 97
Typical Approach Scenario .......................... 97
Typical Landing Scenario ............................. 97
Autoloading ................................................ 97
Radar (RADAR) Function ...................................... 98
Off Mode ..................................................... 99
Standby/On Mode ...................................... 99
Test Mode ................................................... 99
Weather Mode ............................................ 99
MAP Mode ................................................ 100
Horizontal Mode ....................................... 100
Vertical Mode (GWX 68 and ART2000/2100
only) ................................................... 100
Range Control ........................................... 101
Tilt Control ............................................... 101
Bearing Control (GWX 68 and ART2000/2100
only) ................................................... 101
Gain Control ............................................. 101
Hold Control ............................................. 102
Cursor Pre-Select Operation (GWX 68 and
ART2000/2100 only)................................. 102
Sector Scan (GWX 68 only)....................... 102
Radar Setup Page............................................. 103
Stabilization (STAB) .................................. 103
Radar Troubleshooting .............................. 103
XM Satellite Radio............................................. 105
Menu Page 1 ................................................... 105
Radio ID .................................................... 105
Save Preset ................................................ 106
Last Channel ............................................. 106
Menu Pages 2-4 ............................................... 107
Volume ............................................................ 107
ix
Introduction
Table of Contents
Mute ......................................................... 107
Channels ......................................................... 107
Categories ....................................................... 108
Direct Access ................................................... 108
XM Advisory Messages .................................... 109
Activating XM Satellite Radio Services ............. 110
Gather Information ................................... 110
System (SYS) Function ....................................... 111
System Nav Pages ............................................ 111
Ownship Symbol ...................................... 111
Lat/Lon Format ......................................... 111
Set Baro Correction Units .......................... 111
Set Baro Correction .................................. 111
Display Latitude/Longitude Lines ............. 112
Initial En Route Zoom and Initial Ground Zoom
Transition Speed.................................. 112
Slave Zoom to GPS Zoom .......................... 113
AutoLoad Electronic Charts....................... 113
Display ICAO for US Airports ................... 113
Altitude Units ............................................ 113
GPS and Data Link Status ......................... 114
System Test Page ............................................. 115
Test Pattern 1 ............................................ 115
Red, Green, Blue, White Test Pattern ......... 115
Caring For Your MX20........................................ 116
Display Care and Cleaning .............................. 116
Contacting the Factory .................................... 116
Troubleshooting ................................................ 117
x
Garmin Data Cards ............................................ 121
Installing and Removing Data Cards ................ 121
Specifications .................................................... 122
Physical Specifications ..................................... 122
Power .............................................................. 122
Environmental................................................. 122
GDL 69/69A FIS Legends ................................... 123
Appendix .................................... 123
Sample GDL 69/69A FIS Displays....................... 124
Care Information ............................................... 125
Cleaning the Unit ............................................ 125
Display Backlight ............................................ 125
Glossary ............................................................. 126
Glossary cont’d .................................................. 127
Software License Agreement ............................ 131
Product Registration and Support.................... 131
License and Warranty Information .................... 131
Contacting the Factory ..................................... 133
Getting Started
Functions
Getting Started
This section explains how to get started using the MX20. Information in this section describes the controls,
data card, display, and basic operation. After reading this section, go to the Detailed Operation section for
expanded explanations for each feature.
Functions
The MX20 contains thirteen major separate functions for the display of information. The function names are
shown as “smart” keys at the bottom of the display. The “smart” key is the combination of a label above a triangle key at the bottom of the display. The labels above the triangle keys change to reflect the choices available
to you for each function. Press the FN key to show the available functions. Press the “smart” key below the
function label to go to the desired function. While in each function, press the MENU/ENTER key to show the
options for each function. The options are shown on the right side of the display. Press the MENU ITEM key
to manipulate the options. Some options toggle on/off, while some are tri-state (three choices).
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MX20 Functions
MSG - Message Log
MAP - Custom Map
IFR - IFR Chart
VFR - VFR Chart
Split - Split Screen
Traffic - Skywatch/TCAD/IHAS (TAS)
Traffic - ADS-B TRAF
Traffic - TIS-A
FPL - Flight Plan
TER - Internal/TAWS Terrain
FIS-B - Flight Information Service
(GDL 90 UAT)
FIS - Flight Information Service
(WSI InFlight)
FIS - Flight Information Service
(GDL 69/69A)
XM - XM Satellite Radio
LT - Lightning Strikes
CHART - Chart View
RADAR - Weather Radar
SYS - System Information
1
Getting Started
Functions
The Message Log displays information from the MX20 or reported to the MX20 by its external sensors. A
flashing MSG annunciator notifies you of a new message that should be viewed.
The Custom Map function allows you to completely customize the displayed map by overlaying selected
information. The Custom Map can become “cluttered” if you choose every option, so use discretion.
The IFR Chart function provides an IFR en route style map on the display.
The VFR Chart function provides a VFR sectional style map for the display.
The Split Screen function allows up to two of the other functions to be displayed side by side and an optional
vertical profile across the bottom of the display.
The Traffic function (when installed) shows nearby traffic and details about each target.
The Flight Plan function provides details about your flight plan and each waypoint.
The Terrain function shows a color coded map of terrain elevation in relation to your altitude.
The Flight Information Services (FIS) function, when installed, is capable of displaying text and graphic
weather information with GDL 90 and GDL 69/69A installations.
The Lightning (LT) function, when connected to the Goodrich WX500 Stormscope, controls the overlay of
lightning strike information on the map displays.
The Chart View feature provides the capability to view Jeppesen Sanderson Inc. electronic charts. Two basic
types of charts can be viewed: Approach charts and airport surface charts.
The XM function allows the reception of XM Satellite Radio entertainment broadcasts when the GDL 69A is
installed and a subscription to the XM Radio service is activated.
The Radar Function allows weather radar from the ART2000, ART2100, or RS-181A to be displayed.
The System Information function lets you set general preferences, show software version information, and test
the display.
2
Getting Started
Controls
Controls
Power/Brightness
Two variations of the Power/Brightness control exist, a rotary knob or a rocker switch. Both are described here.
Power Rotary Switch
The power switch is located in the upper right corner of the MX20. Turn the power rotary knob clockwise past
the detent to turn the power on. Turn the power knob fully counterclockwise to turn the power off. With the
power knob pushed in, the brightness is set automatically according to ambient light by a photo sensor. Pull
the knob out and turn the knob to adjust the display brightness manually.
Power Rocker Switch
The power switch is located in the upper right corner of the MX20. Press the “+” rocker switch to turn the
power on. Press both the “-” and “+” rocker switches and hold them down to turn the power off. Press the “-”
and “+” rocker switches individually to adjust the display brightness manually. Press the “-” and “+” rocker
switches at the same time until the keys flash, then release to set the brightness automatically.
Function (FN)
The Function keys are made up of one dedicated key on the lower left side of the display and the four “smart”
keys to the right of it. Press the function (FN) key repeatedly to scroll through the available functions. The
functions will appear above the “smart” function keys in turquoise.
Use the FN key to display a list of the main functions, such as Map, IFR, Terrain, etc. Each time you press
the FN key you will step through the list of functions. After you press one of the function “smart” keys at the
bottom of the display, the function keys change to provide options to control the display related to the current
function.
Change the function keys back to the function list by pressing the FN key.
Menu/Enter
The MENU/ENTER key is located on the bottom right corner of the MX20. Press the MENU/ENTER key to
show a menu of options to modify the display of the current function. Press the MENU/ENTER key to hide
the menu. If no action is taken, the menu will automatically extinguish in a few seconds.
3
Getting Started
Data Card
Menu Item
The Menu Item keys are on the right side of the MX20. Press the MENU/ENTER key to see the options for the
current function. Press the MENU ITEM key next to each option to scroll through the choices for each option.
Some options support tri-state choices, such as in Map mode. When you select a tri-state option, the option label
will change with each key press between completely filled, partially filled, and empty.
Data Card
The Map database and other information is stored on a data card. The use of a data card allows you to easily
update information.
Only change the data card when the power is turned off.
Handle your data card carefully. Do not touch the connector edge of the data card. To eject the card, use a soft
blunt object to 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 department, eject the data card and write down
the information shown on the label.
Menu Item Key Layout
Front View of Data Card Slot
4
Data Card Label
Getting Started
Display
Display
The MX20 display provides text and graphic information to give a “picture” of your flight and surroundings.
The display brightness may be set manually or allowed to automatically adjust to ambient light conditions. At
the bottom of the display, labels above the function keys change to show the different choices for each function
to allow access to commonly used actions. A typical Custom Map function display is shown below.
MX20s with a rotary Power/Dimming knob will go into a pre-heat mode for a short period of time on start-up.
During the pre-heat mode, the display will remain dark. The pre-heat mode is designed to extend the life of
the LCD backlight.
Graphic Display
Traffic
Obstruction
Bearing to
Destination (TO) Wpt
Menu Item Labels
TO Waypoint
Identifier
MX20
Traffic Thumbnail
Power/Dimming
Ownship
Advisory Flags
Menu Item
Smart Keys
Data Flags
Zoom
(Map Scale)
Menu/Enter Key
Message Flag
Function Key
Data Card Ejector
Photosensor
Function Smart Keys
Function Smart
Key Labels
Mounting Screw Currently Selected Function
Data Card
5
Getting Started
Annunciations
Annunciations
Advisory flags, data flags, and messages appear on the display to give information about the status of the MX20
or to provide operating information.
Advisory Flags
Annunciations will appear on the upper left side of the display to provide advisories for Traffic, Terrain, and
Lightning. Advisory information is monitored and displayed regardless of the selected function. Advisory flags
will flash for approximately 10 seconds when they first appear and then turn solid while they are still valid.
Advisory icons will reduce in size if more than two advisory conditions exist.
Advisory Flags
ADS-B Traffic
The Traffic advisory flag will appear on the left side of the display when traffic is reported to be within ±2000
feet of your altitude and 5 nm of your location. This Traffic advisory is only available when the ADS-B system
with a UAT data link is installed and operational. Refer to the TIS Traffic section for a description of TIS-A and
TIS-B.
Skywatch/TCAD/TIS-A Traffic
The Traffic Advisory/Alert will appear in amber on the left side of the display when the traffic sensor indicates
an alerting condition. Refer to the TIS Traffic section for a description of TIS-A and TIS-B.
Terrain
The Terrain advisory flag will appear on the left side of the display when the terrain surface or obstacle altitude
is within approximately 500 feet of your altitude and within approximately two minutes of flight in any direction.
Lightning
The Lightning advisory flag will show on the left side of the display when the WX500 sends an indication that
lightning has been detected within 50 nm of your location. See the WX500 manual for details about range and
other capabilities.
6
Getting Started
Data Flags
Data Flags
Data flags appear on the left side of the display to notify you when there is a loss of reported information.
The data usually displayed, such as lightning or nearby terrain, may still exist, but may not be displayed for
technical reasons. For instance, when the amber TRAF data flag appears it means that the MX20 is not receiving
Traffic information from the sensor. So, traffic may exist in your vicinity, but will not be displayed on the MX20.
All flags are amber unless otherwise indicated.
Data Flag
Description
Message Flag
The Message flag will appear on the
lower left side of the display when a new message
is posted. Go to the Message function to view the
information about the operation or status of the
MX20.
No valid position information is available from the
source. Do not expect a valid position representation
on the maps. The Ownship symbol will have an “X”
through it.
No valid route (flight plan) is available from the external navigation source. Route (flight plan) information
will not be shown on the maps.
No valid altitude information is available from the
external source. Altitude related functions will not
operate, such as terrain awareness.
No traffic information is received from the optional
traffic sensor. Traffic will not be displayed. Your position information may not be broadcast in ADS-B
capable systems.
The GPS receiver in the GDL 90 UAT is not reporting
a valid position. ADS-B broadcast will not include a
position report.
No valid lightning detection information is being
received from the optional Stormscope sensor. Strike
and cell information will not be displayed.
7
Getting Started
Data Flags
Data Flag
Description
Terrain coverage is not available for some part of the
terrain advisory coverage area. Terrain advisories may
not be provided.
When connected to the SL30, indicates the SL30 is not available or valid. ILS, OBS, and VORs will not be highlighted.
No valid traffic information is being received from the
optional Ryan TCAD sensor. Traffic information will
not be displayed.
Indicates that radar status information is not available
from the optional external radar transmitter head.
Radar related functionality may not be available.
(Green)
(Green Flashing)
(Green)
Indicates that the radar is ON and transmitting RF
energy. Appropriate precautions should be taken.
Indicates that the radar is in Hold and is transmitting
RF energy. Appropriate precautions should be taken.
Displayed when the GDL 90 is in Ident mode.
No valid datalink information is available from the
optional external source.
No valid terrain information is available from the
optional external source.
No valid datalink information is available from the
optional external source.
No valid TIS-A information is available from the
optional external source.
8
Getting Started
Basic Operation
Basic Operation
Use the following items to get a basic feel for the operation of the MX20. The basic steps for using any of the
separate functions of the MX20 are:
• Turn the power on.
• Adjust the brightness or set it to automatic.
• Check that all tests pass on the Start Up screen.
• Press the FN key to view available functions. Each press of the FN key will step through the lists of
functions.
• Press the key below the function label to select the desired function.
• Confirm or enter the current barometric pressure
• Press the MENU/ENTER key to display available options.
• Press the MENU ITEM key next to the displayed option to choose desired capabilities. Some options
use multiple key presses for different states for the option. Press the MENU/ENTER key again to
extinguish the option display.
• Refer to the Detailed Operation section for more details on each function.
Power On
Turn the power rotary knob clockwise past the
detent to turn the power on OR press the “+”
rocker switch to turn the power on. The MX20
will progress through a series of startup screens.
The final startup screen shows System Information and the results of the Self-Test.
Pre-Heat Mode
MX20s with the rotary power/dimmer knob will
go into a pre-heat mode for a short period of
time on start-up. During the pre-heat mode, the
display will remain dark. The pre-heat mode is
designed to extend the life of the LCD backlight.
Brightness
Rotary Knob Model
With the Power knob pulled out, turn the knob in each direction to adjust the display brightness manually.
Manual brightness mode may be selected to adjust the display for difficult lighting conditions. Push the knob
in, and the brightness is adjusted automatically according to the ambient light. When the brightness is set
automatically, the display will not dim below a pre-defined level.
Rocker Switch Model
Press the “-” and “+” rocker switches at the same time briefly to set the brightness automatically according to
ambient light by the photo sensor. Press the “-” and “+” rocker switches alone to adjust the display brightness
manually. When the brightness is set automatically, the display will not dim below a pre-defined level.
9
Getting Started
Start Up and Baro Correction
Start Up Screen
The Start Up screen is displayed while the MX20 goes through its initialization and testing routines. System
information is shown that provides the MX20 software and database versions. The results of the self test are
shown. A check mark shows that the test passed. If any of the Self-Tests fail (red “x”), contact your dealer or
the factory.
Start Up Screen After Passing Tests
Confirm Current Baro Correction
A window may appear at startup, and then every 30 minutes, that displays the current barometric value. You
must verify the current value or enter a new value. Press BARO + to increase the value. Press BARO - to
decrease the value. Press OK to confirm the existing values or to accept changes you have just entered.
Barometric Pressure Confirmation
10
Getting Started
Function Selection
Function Selection
Press the FN key to view the different Functions. The functions are shown above the function “smart” keys on
the lower part of the display in blue. Press the function key under the function label to activate that function.
The labels above the function key will change to reflect the custom “smart” controls for that function. All of the
described functions may not be available in each installation.
Function
Description
MSG
Message Log Function
MAP
Custom Map Function
IFR
IFR En Route Map
VFR
VFR Sectional Map
SPLIT
Split Screen (Displays Two Functions)
TRAF
Traffic Display
FPL
Flight Plan Information
TER
Terrain Depiction
FIS
Flight Information Service - Graphic and Text Weather
XM
XM Satellite Radio Audio
LT
Lightning Detection and Reporting
CHART
Chart View
RADAR
Weather Radar Function
SYS
System Information
11
Getting Started
Advisory Hot Key
Advisory Hot Key
The “Advisory Hot Key” feature allows advisory conditions to be quickly viewed with minimal effort by the
pilot. This feature is comprised of three components:
1) An advisory condition is indicated by a white advisory flag on the left side of the screen and the
corresponding Function label will also be highlighted in white when selecting a new Function with
the FN key. This feature allows any Function with a pending advisory to be quickly recognized in the
Function menu.
2) When a function is entered that has an advisory posted, the zoom level will be adjusted to show the
advisory causing object (terrain for example), and the map orientation will be forced to “Track Up 360”
to get a good view of what is around the aircraft.
3) When returning to the previous Function after viewing a Function with an advisory, the original zoom
and map mode will be restored.
This feature is designed to allow the pilot to establish a preferred “cruise” map setup and quickly view an
advisory, then return back to the previous setting. For example:
Normal Cruise Condition
Custom Map Function is being viewed at 5 nm in the ARC mode.
Terrain Advisory occurs at 10 nm in front of aircraft: The Terrain Advisory Indicator flashes then goes steady
on the left side of the display.
Viewing the Advisory
The pilot presses the FN key and sees the TER Function highlighted in white, indicating it has an advisory
condition. Pressing the TER key to enter the Terrain Function at this point will automatically adjust the zoom
level to 10 nm and place the unit in full “360” mode to show overall situational awareness.
Returning To Normal Condition
After evaluating the advisory, to return to normal viewing simply select the original Function that was being
viewed before the advisory was viewed. When this is done, the zoom level will be set back to 5 nm and the
display mode will be returned to ARC mode.
12
Getting Started
Alert Hot Key
Alert Hot Key, Options, Thumbnail
Traffic alerts go one step further than the Advisory hot key feature and will automatically bring up the Function Menu showing the Traffic function. This is called the “prompt” mode. A single key press can then be used
to switch the display to the Traffic function. The Alert hot key feature will automatically clear when the traffic
alert condition no longer exists.
Also note that a “pop-up” mode can be enabled on the Traffic function, which makes the Traffic page “pop-up”
when a Traffic Advisory occurs. The “prompt” or “pop-up” mode is selected in the Traffic function.
Options Menu
Most functions have a number of options available. Press the MENU/ENTER key to see the options for the
current function. You change an option by pressing one of the Menu Item keys that are to the right of the displayed option. Many options have more than two choices. Press the same MENU ITEM key repeatedly to view
or select the available choices. Some functions have several pages of options. The lower MENU ITEM key will
allow you to reach the Next Page when multiple pages are available. Press the MENU/ENTER key a second
time to remove the menu from view or wait a few seconds for the options to automatically extinguish.
Thumbnail Feature
The Thumbnail feature provides a small map depiction that is overlaid in the upper left corner of the MX20
display. It provides for enhanced traffic and terrain situational awareness when not specifically viewing traffic
or terrain related functions. For example, both traffic and terrain situational awareness can be maintained
while viewing the Flight Plan Function.
The Thumbnail is shown in both a small and large format, depending on the function currently being viewed.
The Thumbnail is typically presented in the larger format when overlaid on a map. However, on some functions where the Thumbnail would overlay critical information, the smaller format is utilized.
The Thumbnail provides a fixed 5 nm range view of conflicting traffic and terrain. The range depicted by the
Thumbnail is not affected by the current zoom scale set on the main map functions.
13
Getting Started
Thumbnail and TIS
Traffic on Thumbnail
TIS, TAS, or TCAS traffic is shown on the Thumbnail in the same symbology used within the Traffic Function. ADSB traffic is not shown on the Thumbnail. Any traffic within sensor range and 5 nm is shown, in addition to traffic
causing an amber Traffic Alert (TA) traffic. Note that the MX20 supports one traffic sensor in any installation.
Terrain on the Thumbnail
Only “Red” terrain within the 5 nm range is presented on the Thumbnail. This correlates directly to terrain that
is rendered in red on the normal Terrain Function based on the internal terrain database. External TAWS-based
terrain from the Goodrich Landmark is not shown on the Thumbnail.
Obstructions on the Thumbnail
Only “Red” obstructions within the 5 nm range are presented on the Thumbnail. This correlates directly to
obstructions that are rendered in red on the other functions.
Thumbnail Activation
Thumbnail view of conflicting terrain and traffic
The Thumbnail incorporates logic that will either show or hide the thumbnail from view. It will only be shown
when there is data to be presented and will be removed if not. For example, if there is no “Red” terrain or traffic
within 5 nm, the Thumbnail will be hidden from view. The Thumbnail will not appear on the Traffic Function page if only traffic is presented in the Thumbnail. Correspondingly, it is not shown on the Terrain page if
only terrain is presented in the Thumbnail. This logic eliminates redundant views that would be created by the
Thumbnail and normal views of traffic and terrain. Additionally, the Thumbnail is disabled while operating on
the ground. This state is determined by the “En Route/Ground Transition Speed” set in the System Function
page and is based on GPS ground speed.
Traffic Information Services (TIS)
There are two versions of TIS: TIS-A and TIS-B. Both are described below.
In the TIS-A system, ground radar sensors collect target information. The ground radar sensor then determines
the targets in the vicinity of your aircraft and their bearing relative to your track. Up to eight of the targets are
transmitted by the ground radar sensor the next time it communicates with your TIS-A enabled transponder.
14
In the TIS-B system, the ground radar sensors collect target information much the same as in the TIS-A system.
However, with TIS-B, all targets collected by the ground radar sensor are broadcast to all aircraft equipped with
UAT data link radios and that are within coverage of UAT ground broadcast stations.
Getting Started
Function Summary
15
Getting Started
Function Summary
16
Getting Started
Function Summary
17
Detailed Operation
Message Log
Message Log (MSG)
The Message function displays information about the status of the MX20. Messages may be logged by either
the MX20 internal system or by one of the external sensors. The amber MSG flag will flash until the message is
viewed. The MSG flag will remain in view while any messages remain in the message log. New messages that
have not been viewed will be highlighted as bold text.
1. Press FN until you see the MSG function key.
2. Press the MSG key.
3. Use the UP/DOWN arrow “smart” keys to move to additional messages, if more than one page of
messages exist.
4. Press CLEAR to remove the stored messages.
Message Log Function Display
18
Detailed Operation
Custom Map
Custom Map (MAP)
The Custom Map function provides a graphic display of map features in relation to the aircraft location to
help improve your situational awareness. Review the Limitations section in the front of this guide that apply to
the use of data displayed on the moving ma\p. The custom map function is unique in that it has the ability to
selectively “overlay” all available types of information onto a single display. You can customize the map display
by overlaying information selected from a menu of options. Press the MENU key to display a list of options on
the right side of the screen. Press the MENU ITEM key next to the displayed option. Repeated presses of the
MENU ITEM key will scroll through the available selections for each option.
The “smart” keys at the bottom of the display over the function keys control the map scale by zooming in or out,
moving the map view around with the Pan feature, and viewing Info about the current destination waypoint.
Map Scale
The In and Out function keys control the map
scale by zooming in and out. You can zoom in
to 0.25 nm and zoom out to 250 nm. The scale
distance is measured from the location of your
aircraft symbol to the top of the screen. The Map
Scale is shown in the lower left corner of the
screen. The map orientation appears above the
map scale on one of the three Nav Data options.
Auto Zoom
Auto Zoom is activated by adjusting the zoom level to the far extremes of the zoom range. When activated, the
indicated zoom level will change from a number to the text “A,” followed by the zoom scale.
While in the Auto Zoom mode, the screen will automatically adjust the current zoom level to maintain the
current “TO” waypoint on the screen. When approaching the waypoint, the zoom level will not drop below 1
nm. When the waypoint is reached and the next waypoint in the flight plan becomes active, the zoom level
will automatically adjust to bring that waypoint on the map.
When installed with a GNS 480-series GPS receiver, the MX20 zoom level can be controlled by the GNS 480.
This feature must be enabled in the System function with the “Slave Zoom to GPS Zoom” setting enabled.
Map Orientation and Zoom Level (Map Scale)
To exit the autozoom mode, simply increase or decrease the current zoom level to re-enter the manual adjust mode.
19
Detailed Operation
Custom Map
Pan
The Pan keys are used to move the display around so you can see beyond the initial boundaries of the screen.
The PAN function key is one of the “smart” keys available at the bottom of the screen. When you select the
Pan function, four “arrow” keys appear on the right side of the screen next to the MENU ITEM keys. Move the
map in the desired direction by pressing the MENU ITEM key next to the arrow that shows you want the map
to move. Press the PAN key again to exit the Pan mode. While panning, a green reference line is drawn from
the center of the viewed area back to your current position.
Info
Press the INFO “smart” key to toggle viewing of
information about the current “TO” waypoint.
Press the INFO key again to hide the information.
Panning Controls
Each press of the  key will step through the
available information for the current destination
waypoint. The number of pages depends on the
amount of information about the destination
waypoint. Press the Wx key to view any available
METARs for the selected waypoint. Note that
not all airports will have METARs available. The
Wx key is available with the WSI and UAT FIS
sensors.
Runway diagrams of airports will be displayed in
the same orientation as the main map (i.e., North
Up, Track Up, or DTK Up).
20
Info page 1
Info page 2
Info page 3
Info page 4
Info Weather
Detailed Operation
Info In Pan Mode
Custom Map
The INFO smart key supports operation in conjunction with the PAN feature.
On any of the maps (Custom Map, IFR and VFR), entering the INFO mode while pan is active, will show
information about the nearest airport to the center of the screen. This allows panning around the immediate
area and obtaining information about airports in the vicinity without changing the current “TO” waypoint.
While in this mode, only the INFO smart key is highlighted. The PAN key is highlighted when exiting the Info
mode. Only information about airports can be obtained with this feature.
Initial Zoom Level
The initial zoom level that is used on start-up is determined by a setting made in the System Function.
Custom Map Menu Option Page 1
The first option page of the Custom Map function lets you select options for the choices of Flight Plan, map
orientation, Invert, Nav Data, and Load Chart. The last option selection takes you to the next page of options.
The options have tri-state choices that are also shown visually. When the option is clear, the icons and labels
are not displayed. When the option is solid, icons and labels are all shown. When the option box is partially
filled, only the icons are shown.
Flight Plan
The Flight Plan option controls the display of the Flight Plan course line. Pressing the MENU ITEM key next
to the Flight Plan option toggles between showing or not showing the Flight Plan route line.
Map Orientation
This option controls the screen orientation in reference to the aircraft symbol. You may select from North Up,
Track Up, Track Up Arc, Track Up 360, and Desired Track Up. North Up sets magnetic north as the top of the
screen. Track Up sets the current track of the aircraft as the top of the screen. Track Up Arc sets the current
track of the aircraft and a 120° arc at the top of the screen. Track Up 360 sets the current track of the aircraft
Custom Map page with Menu Items (page 1)
21
Detailed Operation
Custom Map
at the top of the screen and a 360° ring with the aircraft symbol position in the center. Desired Track Up sets
the desired track to the next waypoint as the top of the screen. Press the MENU ITEM key next to this option
to scroll through the options.
Invert
The Invert option changes the display of text and the background color. Depending on which layers are turned
on, inverting the display may help readability for the current lighting conditions. For instance, when Terrain is
shown, the Invert option switches between white and black text. When terrain is turned off, the Invert option
switches between a white background with black text and a black background with white text.
Nav Data
Full Nav data information shown
The Nav Data option allows to control the display of navigation data on the display. Subsequent presses of the
MENU ITEM key for this option provides choices of no nav data, nav data in the corners (waypoint, bearing,
zoom, and distance), or full nav data. The full nav data option includes the information in the four corners
selection plus altitude, barometer setting, track, and ground speed. Altitude and barometer setting information
is not shown in TAWS installations.
Load Chart (Optional)
Partial Nav data information shown
Once the airport is selected, the individual approach chart to be overlaid can be loaded from a list of geo-referenced approach charts available for that airport. Not all approach charts can be overlaid in this fashion and
only geo-referenced charts will be presented for selection from the Custom Map. Because of this, it is possible
that approach charts that are viewable under the Chart View Function may not be presented in this list.
NOTE: The pilot must be aware that not all charts in the loaded database can be used as an
overlay. The Chart function is automatic when connected to a GNS 480-series GPS receiver.
Minimum Nav data information shown
22
Press the Next Page MENU ITEM key to display the next page of menu items.
Detailed Operation
Custom Map Menu Option Page 2
Custom Map
The second option page of the Custom Map function lets you select options for the choices of Airports, VORs,
NDBs, Intersections, and Airspace. The last option selection takes you to the next page of options.
Airports
The Airports option allows you to choose the level of airport information displayed on the Map screen. You
may select the display of airport icon and identifier, icon only, or no information by each subsequent press of
the Airport MENU ITEM option keys.
VORs
The VORs option allows you to choose the type of VOR information displayed on the Map screen. You may
select the display of VOR icon and identifier, icon only, or no information by each subsequent press of the VOR
MENU ITEM key.
Custom Map page with Menu Items (page 2)
The MX20 supports full integration with the SL30 Nav/Com. This feature allows tuned VORs along with ILS
and localizer approaches to be shown on the MX20 moving map. This high level of integration is designed
to provide additional, simple to interpret situational awareness during high work-load phases of flight. The
graphic display of Nav/Comm information on the MX20 provides another source to help make sure you are
using the intended navigational aid and your To/From orientation to the reference station is as desired.
You can turn the display of VOR and ILS information in the Custom Map page on or off. VOR and ILS information is always shown in the IFR and VFR Chart functions.
VOR Highlight
The MX20 highlights the VOR in magenta on the moving map when the SL30 is either tuned to or monitoring a nearby VOR station. The highlighted VOR station is determined by using the tuned or monitored VOR
frequency of the SL30 with the MX20 internal database.
The SL30 must be receiving a valid signal from the VOR.
Custom Map information when connected to SL30
23
Detailed Operation
Custom Map
The VOR information box for the selected VOR will show the distance and radial-from bearing between your
present position and the VOR. The radial and distance information comes from your GPS, not the SL30.
The MX20 must have VOR symbols turned on for this feature to be active in the Custom Map function. VOR
information is always shown in the IFR and VFR Chart functions.
VOR OBS
VOR information detail
The OBS (Omni-Bearing Selector) value selected in the SL30 will be shown as a line from the tuned VOR
station in magenta on the MX20 display. The selected value will be shown on the line. This feature provides a
quick view of your position relative to both the VOR and the tuned radial to help improve situational awareness. The OBS line will only be drawn from the active VOR, not the monitored VOR.
The SL30 must be receiving a valid signal from the VOR and the MX20 must have VOR symbols turned on for this
feature to be active.
ILS/Localizer Depiction
When either an ILS or localizer is tuned on the SL30, the MX20 will display the currently tuned approach on
the appropriate airport runway. The SL30 Nav function provides an overall graphic view of the selected airport
and approach based on runway extensions and the selected frequencies. The standard ILS symbol is shown in
magenta on the MX20 display.
Localizer Back Course Display
The MX20 will draw the “front course” on its display when a localizer frequency is tuned into the SL30. If you
enable the localizer back course feature of the SL30, the MX20 will then draw a localizer “front course” graphic
extending from the reciprocal runway.
ILS for currently tuned approach by SL30
The localizer front course graphic is shaded on the right side. The localizer back course graphic is shaded on
the left side. Since the SL30 reverse-senses the needles, a standard “chase the needle” approach may be made
and the localizer “front course” graphic is always used on the MX20.
A published localizer back course approach at the airport is not necessary to enable this feature.
The SL30 must be receiving a valid ILS, or localizer, and the MX20 must have airports turned on for this feature to be active.
24
Detailed Operation
NDBs
Custom Map
The NDBs option allows you to choose the type of NDB information displayed on the Map screen. You may
select the display of NDB icon and identifier, icon only, or no information by each subsequent press of the NDB
MENU ITEM key.
Intersections
The Intersections option allows you to choose the type of Intersection information displayed on the Map
screen. You may select the display of the Intersection icon and identifier, icon only, or no information by each
subsequent press of the Intersection MENU ITEM key.
Airspace
The Airspace option allows you to control the display of airspaces. Pressing the MENU ITEM key next to Airspace toggles between either the display of airspace boundaries and altitude information, boundaries alone, or
no display of airspaces. Airspaces defined as Class B, C, Alert, Caution, Danger, Training, Warning, MOA, Restricted, and Prohibited are depicted on the display. Note that not all airspaces may be defined in the database
as one of these airspaces. Class D airspaces are not drawn; however, a circular airspace with a five mile radius is
drawn around airports with control towers. Airspaces defined as Unknown, such as the Grand Canyon, are not
drawn on the display.
Custom Map page with NDBs, Intersections, and
Airspace selected with Menu Items (Page 2)
Press the Next Page MENU ITEM key to display the next page of menu items.
25
Detailed Operation
Custom Map
Custom Map Menu Option Page 3
The third option page of the Custom Map function lets you select options for the choices of Low Airways,
High Airways, Water, Roads, and political boundaries. The last option selection takes you to the next page of
options.
Low Airways
The Low Airways option allows you to control the display of Low Airways. Pressing the MENU ITEM key next
to Low Airways toggles between either the display of the airway and label, airway alone, or no display of Low
Airways.
High Airways
Custom Map page with Low Airways, High Airways,
and Menu Items (Page 3)
The High Airways option allows you to control the display of High Airways. Pressing the MENU ITEM key
next to High Airways toggles between either the display of the airway and label, airway alone, or no display of
High Airways.
Water
The Water option allows you to control the display of rivers and lakes. Pressing the MENU ITEM key next to
Waters toggles between either the display or no display of the bodies of water.
Roads
The Roads option allows you to control the display of interstate and state highways. Pressing the MENU ITEM
key next to Roads toggles between either the display or no display of the road features.
Boundaries
The Boundaries option allows you to select the display of political boundaries on the Map displays.
Custom Map page with Water, Roads, Boundaries,
and Menu Items (Page 3)
26
Press the Next Page MENU ITEM key to display the next page of menu items.
Detailed Operation
Custom Map Menu Option Page 4
Custom Map
The fourth option page of the Custom Map function lets you select options for choices of Airport Charts, Terrain, Obstructions, Traffic, and Lightning Strikes.
Airport Chart
Airport surface charts provide a graphical presentation of the airport surface area (runways, taxiways, buildings, towers and other objects), within the immediate airport vicinity.
From either the Custom Map or the IFR En Route Map, airport surface charts will automatically be loaded and
displayed as an overlay if the following conditions are met:
• The airport surface chart is within the loaded database
• The airport surface chart is geo-referenced by Jeppesen
• Airport Chart menu layer is turned on
• The aircraft position is within the coverage of the chart
• A loaded chart is not being “flown”
Custom Map page with Chart View loaded and
Menu Items (Page 4)
Terrain
The Terrain option allows you select the display of topographical features. Pressing the MENU ITEM key
next to the Terrain option toggles between sectional (absolute), terrain awareness (relative), or no display of
topographical features. The sectional (absolute) display shows a display similar to a sectional map. The terrain
awareness (absolute) display shows a color coded view where the colors relate to terrain elevation relative to
your altitude. For more information about the terrain awareness option, see the Terrain function section. When
you turn the Terrain feature off, the background is either black or white depending on your selection in the
Invert option. When no terrain data is available, the missing areas will be shown in light blue. Water will not
be shown in relative mode. Review the Limitations section in the front of this guide.
Custom Map page with Terrain and Menu Items
(Page 4)
27
Detailed Operation
Custom Map
Obstruction icon
Obstructions
Obstructions, such as towers and other man-made objects, are part of the MX20 updateable database. Obstructions over 250 feet high are shown on the maps with tower symbols. The symbol is color coded to signify the
relative altitude of the tower to your aircraft’s altitude and follows the same conventions as the color coding
for terrain. Objects that are at your altitude are shown in red; objects that are near your altitude are shown in
yellow; objects with towers that are significantly below your altitude colored green. Obstructions are shown
on the Custom Map and in the Terrain function. For info on color coding, see the section about the Internal
MX20-Based Terrain. Review the Limitations section in the front of this guide.
Current coverage for obstructions is North America only and are drawn only when the zoom level is below
50 nm.
Traffic
Custom Map page with Obstructions, Traffic,
Lightning Strikes, and Menu Items (Page 4)
The Traffic option turns the display of traffic information on or off. ADS-B Traffic information includes the
location and identifier of a reporting aircraft, its direction of travel, elevation, and the estimated path for the
selected time interval. See the section on the Traffic mode for more details on how traffic information is used.
For Skywatch/TCAD/GTX 330 installations, a small thumbnail presentation of traffic is presented in the upper
left corner of the display. In TCAD, Skywatch, and GTX 330 installations, the traffic targets can also be overlaid
on the Custom Map page.
The Traffic function is not available in all software versions. Check your Approved Flight Manual Supplement
to verify if this feature is available. Review the Limitations section in the front of this guide.
28
Detailed Operation
Strikes
The Strikes menu option controls the display of lightning strike information if the MX20 receives strike data
from an external source, such as the WX500. Each reported lightning strike is shown as a red “x” on the
display. Strikes are not shown if the zoom level is below 20 nm.
Custom Map
Lightning strike icon (red “x”)
Press the Next Page MENU ITEM key to display the next page of menu items.
29
Detailed Operation
IFR En Route Chart
IFR En Route (IFR) Chart Function
The IFR En Route Chart function shows an IFR en route style map for the display. The IFR display shows
navigational aid information and the flight plan course line. The “smart” keys on the bottom of the screen
control zooming in and out, panning, and the display of information on the current TO waypoint. The menu
of options available for the IFR mode include Flight Plan, map orientation, Invert, and turning labels on or off.
This data is advisory only and does not replace primary indicators, such as the CDI. Navigation should not be
based on the data presented on the MX20. Review the Limitations section in the front of this guide.
IFR Option Page 1
The first option page of the IFR Chart function lets you select options for the choices of Flight Plan, Map Orientation, Invert display, Nav Data, and Labels. The last option selection takes you to the next page of options.
Flight Plan
The Flight Plan option controls the display of the Flight Plan course line. Pressing the MENU ITEM key next
to the Flight Plan option toggles between showing and not showing the Flight Plan route line.
Map Orientation
IFR En Route Chart page with Menu Items (Page 1)
30
This option controls the screen orientation in reference to the aircraft symbol. You may select from North Up,
Track Up, Track Up Arc, Track Up 360, and Desired Track Up. North Up sets magnetic north as the top of the
screen. Track Up sets the current track of the aircraft as the top of the screen. Track Up Arc sets the current
track of the aircraft and a 120° arc at the top of the screen. Track Up 360 sets the current track of the aircraft
at the top of the screen and a 360° ring with the aircraft symbol position in the center. Desired Track Up sets
the desired track to the next waypoint as the top of the screen. Press the MENU ITEM key next to this option
to scroll through the options.
Detailed Operation
Invert
IFR En Route Chart
The Invert option changes the display of text and the background color. The Invert option switches between a
white background with black text and a black background with white text.
Nav Data
The Nav Data option allows you to control the display of navigation data on the Map displays. Subsequent
presses of the MENU ITEM key for this option provides choices of no nav data, nav data in the corners
(waypoint, bearing, zoom, and distance), or full nav data. The full nav data option includes the information in
the four corners selection plus altitude, barometer setting, track, and ground speed.
Label
The LABEL key turns the labels for each item on or off for easy decluttering. When Labels are turned off, only
the symbol for waypoints along the flight plan will remain in view when the flight plan is enabled.
IFR En Route Chart page inverted
IFR Option Page 2
The second option page of the IFR Chart function lets you select options for the choices of Low Airways, High
Airways, Airport Chart, and Terrain. The last option selection takes you back to the first page of options.
Low Airways
The Low Airways option allows you to control the display of Low Airways. Pressing the MENU ITEM key next
to Low Airways toggles between either the display of the airway and label, airway alone, or no display of Low
Airways.
High Airways
The High Airways option allows you to control the display of High Airways. Pressing the MENU ITEM key
next to High Airways toggles between either the display of the airway and label, airway alone, or no display of
High Airways.
IFR En Route Chart page with Menu Items (Page 2)
31
Detailed Operation
IFR En Route Chart
Airport Chart
Airport surface charts provide a graphical presentation of the airport surface area (runways, taxiways, buildings, towers and other objects), within the immediate airport vicinity.
From either the Custom Map or the IFR en route Map, airport surface charts will automatically be loaded and
displayed as an overlay if the following conditions are met:
• The airport surface chart is within the loaded database
• The airport surface chart is geo-referenced by Jeppesen
• Airport Chart menu layer is turned on
• The aircraft position is within the coverage of the chart
• A loaded chart is not being “flown”
Load Chart
Once the airport is selected, the individual approach chart to be overlaid can be loaded from a list of geo-referenced approach charts available for that airport. Not all approach charts can be overlaid in this fashion and
only geo-referenced charts will be presented for selection from the Custom Map. Because of this, it is possible
that approach charts that are viewable under the Chart View Function may not be presented in this list.
NOTE: The pilot must be aware that not all charts in the loaded database can be used as an
overlay. When enabled, a chart may be automatically loaded if installed with a GNS 480-series
GPS receiver. See the System Function to enable this feature.
32
Detailed Operation
VFR Chart (VFR) Function
VFR En Route Chart
The VFR Chart function shows an VFR sectional style map for the display. Topographic features are shown.
The VFR display shows navigational aid information and the flight plan course line. The “smart” keys on the
bottom of the screen control zooming in and out, panning, and the display of information about the current
TO waypoint. The options available for the VFR mode include Flight Plan, screen orientation, Invert, and turning labels on or off. Review the Limitations section in the front of this guide for the limitations that apply to the
data displayed on the moving map.
Flight Plan
The Flight Plan option controls the display of the Flight Plan course line. Pressing the MENU ITEM key next
to the Flight Plan option toggles between showing and not showing the Flight Plan route line.
Map Orientation
VFR En Route Chart page with Menu Items
This option controls the screen orientation in reference to the aircraft symbol. You may select from North Up,
Track Up, Track Up Arc, Track Up 360, and Desired Track Up. North Up sets magnetic north as the top of the
screen. Track Up sets the current track of the aircraft as the top of the screen. Track Up Arc sets the current
track of the aircraft and a 120° arc at the top of the screen. Track Up 360 sets the current track of the aircraft
at the top of the screen and a 360° ring with the aircraft symbol position in the center. Desired Track Up sets
the desired track to the next waypoint as the top of the screen. Press the MENU ITEM key next to this option
to scroll through the options.
Invert
The Invert option changes the text and background color. Inverting the display may help readability for the
current lighting conditions and the color of the terrain in a given area.
33
Detailed Operation
VFR En Route Chart
Nav Data
The Nav Data option allows to control the display of navigation data on the Map displays. Subsequent presses
of the MENU ITEM key for this option provides choices of no nav data, nav data in the corners (waypoint,
bearing, zoom, and distance), or full nav data. The full nav data option includes the information in the four
corners selection plus altitude, barometer setting, track, and ground speed.
Label
The LABEL key turns the labels over each item of information on or off. When Labels are turned off, only the
symbol for waypoints along the flight plan will remain in view when the flight plan is enabled.
34
Detailed Operation
Split Screen (SPLIT) Function
Split Screen
The Split Screen capability allows you to display up to two enabled functions side by side. Press the MENU
ITEM key next to the desired map to highlight the selection. When two functions are displayed, you must first
deselect a highlighted selection before selecting another function. Review the Limitations section in the front of
this guide for the limitations that apply to the data displayed on the moving map.
A vertical profile may be optionally selected to be shown on the lower portion of the display. The profile view
is only available when there is no TAWS sensor enabled and the Terrain function is based on the internal
terrain database. The profile display is always oriented in the Track-Up mode, where the depicted terrain is a
cross-section of the terrain just below the aircraft’s current track. Obstructions are not shown on the profile
display and the aircraft current altitude is provided next to the ownship symbol. The altitude scale adjusts
automatically with the aircraft altitude. The zoom scale and map orientation are displayed in the upper right
corner of the profile display.
When two functions are displayed, the left and right quarter of each function is not displayed, leaving the
center half of the original display. The image is not compressed from full width to half width.
Split Screen showing Custom Map and Flight Plan
pages with Menu Items
Functions with an ownship symbol are displayed in Track-Up map orientation and do not include the track
line and compass rose.
Press the Main Menu Item key to go to the next page of the Menu.
Split Screen showing Custom Map and Flight Plan
pages along with the Vertical Profile & Menu Items
35
Detailed Operation
TAS/TCAD Traffic
TAS / TCAD Traffic (TRAF) Function
The MX20 I/O Traffic model supports interfaces to third party traffic sensors. The traffic function, when interfaced to the Goodrich Skywatch, the Honeywell IHAS (both referred to as TAS sensors), or the Ryan TCAD is
capable of displaying traffic targets as supplied by those sensors. Standard TCAS-type symbology is used and
several menu options are available for adjusting the traffic presentation. Review the Limitations section in the
front of this guide for the limitations that apply to traffic data.
The traffic menu options vary depending on the traffic sources selected during the installation procedures but
the display symbology is the same.
Traffic Depiction
TAS/TCAD Traffic page showing 360 degree arc
Your position (ownship symbol) is located at the tip of the aircraft icon at center of the screen. The traffic function is always shown in heading mode, meaning that track based flight plan information is not overlaid. Traffic
can also be shown on the Custom Map and in a small thumbnail view presented in the upper left corner of the
screen. Note that a heading input is required to display TAS traffic on the Custom Map.
Alert Hot Key
Traffic alerts go one step further than the Advisory hot key feature and will automatically bring up the Function Menu showing the TAS/TCAD function. A single key press can then be used to switch the display to the
Traffic function. The Alert hot key feature will automatically clear when the traffic alert condition no longer
exists.
Traffic Alert Pop-Up
When a Traffic Alert occurs, the system can automatically switch to the Traffic function and the zoom level will
be adjusted to view the traffic. The Alert Hot Key or Traffic Alert Pop-Up mode option is selectable in the Traffic menu and only occurs when the display is set to some function other than Traffic.
Traffic Alert pop-up
36
Detailed Operation
Symbology
Traffic is shown with either the relative or absolute altitude indicated above or below the target symbol. If the
traffic is below or equal to your ownship altitude, the label is shown below the symbol. If the traffic is above
your ownship altitude, the label is shown above the symbol. For traffic with no altitude information, the label
will be shown as dashes (---).
• Traffic shown with an amber filled circle corresponds to traffic generating an alerting condition
• Traffic shown with a cyan filled diamond corresponds to traffic generating an advisory condition
• Traffic shown with a cyan open diamond is considered “other traffic”
Vert Smart Key (TAS)
TAS/TCAD Traffic
Traffic alert target with direction of
ascent or descent and relative altitude
Traffic advisory target with relative
altitude
“Other” traffic target with relative
altitude
The Vertical Mode (Vert) “smart” key is used to select the vertical filtering mode for the TAS unit. The following
options are available and will allow traffic that is within the indicated range to be displayed:
• ABV (Above)
+9000/-2700
• NRM (Normal)
+2700/-2700
• BLW (Below)
+2700/-9000
• UNR (Unrestricted)
No Limit
Traffic Status Indicators
Off Scale
If a Traffic Alert target is not shown on the display because the zoom level is set too high, an amber Traffic Off
Scale (OS) indicator will show on the display.
Standby (TAS)
If the traffic sensor is in the Standby Mode, a white TAS Standby message will show on the display.
37
Detailed Operation
TAS/TCAD Traffic
Test (Skywatch)
TAS Test will be displayed if the Traffic sensor is in the Test Mode.
Not Displayed
An amber “Traffic Not Displayed” will be shown if the GPS position or the Traffic sensor has failed.
TAS Fail
System Failure, shown in amber.
TAS Data Fail
Label set sent by the Skywatch unit has failed the integrity check. Shown in amber.
TAS Time-Out
MX20 is not receiving labels from the TAS unit. Shown in amber.
No Bearing Advisories
Traffic advisories without a valid bearing will be listed in text form below the ownship symbol.
TAS Menu Options
Traffic Alert Mode (Pop-Up/Prompt)
The Traffic Alert mode allows you to configure the currently selected Traffic Alert response. If Pop Up is
selected, the Traffic function will automatically pop up when a Traffic Alert occurs. If the Prompt mode is
selected, the Traffic Alert hot key prompt is shown when a Traffic Alert occurs. If the Traffic function is already
being viewed, neither will occur.
Standby Mode
The Standby mode places the TAS unit into the standby mode. In this mode, the unit will not display
traffic targets or generate traffic alerts. See the TAS Users Guide for additional information.
38
Detailed Operation
Self-Test
TAS/TCAD Traffic
When in Standby Mode, a TAS Self-Test can be initiated by selecting this option.
TCAD 9900B Menu Options
Altitude Option (Relative/Pressure)
The Altitude option lets you select between relative and pressure altitude in hundreds of feet. The Altitude option choice is shown in the upper left corner of the screen. Relative altitudes are shown with a “+” or “-”, while
absolute altitudes are shown as just a number.
Filter
An altitude filter allows targets that are outside of a ±2000’ vertical range to be filtered off the display. The current mode is shown in the upper left corner of the display as “ALL” (no filtering) or “±2000” when the filtering
is active.
Volume
The volume of the TCAD voice alert can be adjusted by pressing the Volume button. This opens a text menu
where a value from 0 – 10 can be entered.
Approach Mode
The Approach Mode sends the approximate elevation of the destination airport to the TCAD unit for Approach
mode operations. See the TCAD operator’s manual for additional details.
Mute Duration
The Mute Duration allows the duration of the mute command to be sent to the TCAD unit. See the TCAD
operator’s manual for additional details.
Shield
This allows the current shield to be selected from a pop-up window. En Route, Unrestricted, Terminal,
Ground, and Standard are the available modes. See the TCAD operator’s manual for additional details.
39
Detailed Operation
TAS/TCAD Traffic
Shield Heights
This allows the shield heights to be adjusted for the En Route, Standard, and Terminal shield modes. See the
TCAD operator’s manual for additional details.
Shield Ranges
This allows the shield ranges to be adjusted for the En Route, Standard, and Terminal shield modes. See TCAD
operator’s manual for additional details.
TCAD 9900BX Menu Options
Altitude Option (Relative/Pressure)
The Altitude option lets you select between relative and pressure altitude in hundreds of feet. The Altitude option choice is shown in the upper left corner of the screen. Relative altitudes are shown with a “+” or “-”, while
absolute altitudes are shown as just a number.
Filter
An altitude filter allows targets that are outside of a ±2000’ vertical range to be filtered off the display.
The current mode is shown in the upper left corner of the display as “ALL” (no filtering) or “±2000” when the
filtering is active.
Volume
The volume of the TCAD voice alert can be adjusted by pressing the Volume button. This opens a text menu
where a value from 0 – 10 can be entered.
Approach Mode
The Approach Mode sends the approximate elevation of the destination airport to the TCAD unit for approach
mode operations. See the TCAD operator’s manual for additional details.
Ground/Flight Mode
The GND/FLT mode commands the TCAD unit into the corresponding mode. See the TCAD operator’s manual
for additional details.
40
Detailed Operation
ADS-B Traffic (TRAF) Function
ADS-B Traffic
The Traffic Function allows you to view other traffic in the area, when installed with a UAT data link radio. The
term “UAT” refers to the “GDL 90” UAT. This screen can also show your flight plan. Traffic is shown in relationship to your aircraft. “Smart” keys allow you to zoom in and out, show traffic labels, and select an individual
traffic target. The Traffic function is not available in all software versions. Review the Limitations section in the
front of this guide for the limitations that apply traffic data.
ADS-B Traffic page showing 360 degree arc
ADS-B Traffic information detail
ADS-B System Description
41
Detailed Operation
ADS-B Traffic
Automatic Dependent Surveillance-Broadcast (ADS-B) is a surveillance technology being deployed in selected
areas of the NAS. ADS-B broadcasts a radio transmission approximately once per second containing the
aircraft’s position, velocity, identification, and other information. ADS-B can also receive reports from other
suitably equipped aircraft within reception range. Additionally, these broadcasts can be received by Ground
Based Transceivers (GBTs) and used to provide air traffic surveillance services, along with fleet operator monitoring of aircraft. No ground infrastructure is necessary for ADS-B equipped aircraft to detect each other.
In the United States, two different data links have been adopted for use with ADS-B: 1090 MHz Extended
Squitter (1090 ES) and the Universal Access Transceiver (UAT). The 1090 ES link is intended for aircraft that
primarily operate at FL180 and above, whereas the UAT link is intended for use by aircraft that primarily
operate at 18,000 feet and below. From a pilot’s standpoint, the two links operate similarly and support ADS-B
and Traffic Information Service-Broadcast (TIS-B). The UAT link additionally supports Flight Information
Services-Broadcast (FIS-B).
ADS-B equipment may be certified as an air-to-air system for enhancing situational awareness and as a surveillance source for air traffic services. Refer to the aircraft’s flight manual supplement for the specific aircraft
installation.
ADS-B enables improved surveillance services, both air-to-air and air-to-ground, especially in areas where radar is
ineffective due to terrain or where it is impractical or cost prohibitive. Initial NAS applications of air-to-air ADS-B
are for “advisory” use only, enhancing a pilot’s visual acquisition of other nearby equipped aircraft either when
airborne or on the airport surface. Additionally, ADS-B may enable ATC and fleet operators to monitor aircraft
throughout the available ground station coverage area. Other applications of ADS-B may include enhanced search
and rescue operations and advanced air-to-air applications such as spacing, sequencing, and merging.
ADS-B avionics typically allow pilots to enter the aircraft’s call sign and Air Traffic Control (ATC)-assigned
transponder code, which will be transmitted to other aircraft and ground receivers. Pilots are cautioned to use
care when selecting and entering the aircraft’s identification and transponder code.
Some ADS-B avionics panels are not interconnected to the transponder. Therefore, it is extremely
important to ensure that the transponder code is identical in the ADS-B and transponder panels.
42
Detailed Operation
Additionally, UAT systems provide a VFR mode that may be used by pilots when not wanting to receive air
traffic services. The “Set 1200” feature will broadcast a “VFR” ID to other aircraft and ground receivers, similar
to the “1200” transponder code.
ADS-B Traffic
ADS-B is intended to be used in-flight and on the airport surface. ADS-B systems should be turned “on” -- and
remain “on” -- whenever operating in the air and on the airport surface, thus helping to reduce the likelihood
of mid-air collisions and runway incursions. Civil and military Mode A/C transponders and ADS-B systems
should be set to the “on” or normal operating position as soon as practical, unless the change to “standby” has
been accomplished previously at the request of ATC. Mode S transponders should be left on whenever power
is applied to the aircraft.
The ADS-B cockpit display of traffic is NOT intended to be used as a collision avoidance system and does
not relieve the pilot’s responsibility to “see and avoid” other aircraft. ADS-B shall not be used for avoidance
maneuvers during IMC or other times when there is no visual contact with the other target aircraft. ADS-B is
intended only to assist in visual acquisition of other aircraft. No avoidance maneuvers are provided for,
nor authorized, as a direct result of an ADS-B target being displayed in the cockpit.
Use of ADS-B surveillance services is limited to the service volume of the GBT. Note that the coverage volume of GBTs is
limited to line-of-sight.
Traffic Description
Your position is located at the tip of the empty triangle (Ownship symbol). The other traffic is shown as a large solid
cyan (light blue) arrow pointing in its direction of travel. Next to the traffic arrow symbol is the traffic identifier, and
altitude. Altitude is selected as either Pressure or Relative Altitude as noted in the upper left corner of the display.
A small up or down arrow next to the identifier indicates that the traffic is climbing or descending at a rate of
at least 500 feet per minute. The end of the vector line that extends beyond the point of the traffic arrow indicates where it will be at the end of the selected time interval. The currently selected time interval is indicated in
the upper left corner of the display.
43
Detailed Operation
ADS-B Traffic
TIS-B Traffic
Traffic Information Service – Broadcast (TIS-B) is supported by displaying non ADS-B equipped aircraft that are
received over the UAT data link radio. Non ADS-B equipped aircraft that are detected by ground-based radar
can be up-linked to all aircraft in the area that are UAT data link equipped and within the GBT service volume.
As TIS target location is determined by ground based radar, coverage, range and target positional accuracy are
highly dependent on relative location to the actual radar site.
Traffic Information Services-Broadcast (TIS-B) is the broadcast of traffic information to ADS-B equipped aircraft
from ADS-B ground stations. The source of this traffic information is derived from ground-based air traffic
surveillance sensors, typically radar. TIS-B is intended to provide ADS-B equipped aircraft with a more complete
traffic picture in situations where not all nearby aircraft are equipped with ADS-B. The advisory-only application enhances a pilot’s visual acquisition of other traffic. TIS-B service is becoming available in selected locations
where there are both adequate surveillance coverage from ground sensors and adequate broadcast coverage from
Ground Based Transceivers (GBTs). The quality level of traffic information provided by TIS-B is dependent upon
the number and type of ground sensors available as TIS-B sources and the timeliness of the reported data.
In order to receive TIS-B services, the following conditions must exist:
1. The host aircraft must be equipped with a UAT ADS-B transmitter / receiver or transceiver, and a
Cockpit Display of Traffic Information (CDTI). As the ground system evolves, the ADS-B data link may
be either UAT or 1090 ES, or both.
2. The host aircraft must fly within the coverage volume of a compatible GBT that is configured for TIS-B uplinks. (Not all GBTs provide TIS-B due to a lack of radar coverage or because a radar feed is not available).
3. The target aircraft must be within the coverage of, and detected by, at least one of the ATC radars serving the GBT in use.
Only transponder-equipped targets (i.e., Mode A/C or Mode S transponders) are detected. Current radar citing
may result in limited radar surveillance coverage at lower altitudes near some general aviation airports, with
subsequently limited TIS-B Service volume coverage. If there is no radar coverage in a given area, then there
will be no TIS-B coverage in that area.
44
Detailed Operation
TIS-B Limitations
1. TIS-B is NOT intended to be used as a collision avoidance system and does not relieve the pilot’s
responsibility to “see and avoid” other aircraft. TIS-B shall not be used for avoidance maneuvers
during times when there is no visual contact with the aircraft. TIS-B is intended only to assist in
the visual acquisition of other aircraft. No avoidance maneuvers are provided for nor authorized
as a direct result of a TIS-B target being displayed in the cockpit.
2. While TIS-B is a useful aid to visual traffic avoidance, its inherent system limitations must be
understood to ensure proper use.
(a) A pilot may receive an intermittent TIS-B target of their own aircraft, typically when maneuvering (e.g., climbing turn) due to the radar not tracking the aircraft as quickly as ADS-B.
(b) The ADS-B-to-radar association process within the ground system may at times have difficulty
correlating an ADS-B report with corresponding radar returns from the same aircraft. When this
happens the pilot will see duplicate traffic symbols (i.e., “TIS-B shadows”) on the cockpit display.
(c) Updates of TIS-B traffic reports will occur less often than ADS-B traffic updates. (TIS-B position updates will occur approximately once every 3-13 seconds depending on the radar coverage.
In comparison, the update rate for ADS-B is nominally once per second).
(d) The TIS-B system only detects and uplinks data pertaining to transponder equipped aircraft.
Aircraft without a transponder will not be displayed as a TIS-B target. Assume that there are more
aircraft in the vicinity of your aircraft.
(e) There is no indication provided when any aircraft is operating inside (or outside) the TIS-B
Service Volume, therefore it is difficult to know if one is receiving uplinked TIS-B traffic information. Assume that not all aircraft are displayed as TIS-B targets.
3. Pilots and operators are reminded that the airborne equipment that displays TIS-B targets is for
pilot situational awareness only and is not approved as a collision avoidance tool. Unless there
is an immediate emergency requiring immediate action, any deviation from an air traffic control
ADS-B Traffic
45
Detailed Operation
ADS-B Traffic
clearance based on TIS-B displayed cockpit information must be approved by the controlling
ATC facility prior to commencing the maneuver. Uncoordinated deviations may place an aircraft
in close proximity to other aircraft under ATC control not seen on the airborne equipment, and
may result in a pilot deviation.
Degraded Target
Degraded targets are shown with the “bullet” symbol. A degraded target has limited positional accuracy and
can either be an uplinked TIS-based target, or an ADS-B target who’s GPS position has degraded. When a
degraded target is selected via the SELECT key in the Traffic function, no distance to the target is displayed, as
it cannot be computed accurately.
Surface Targets
Surface vehicle targets, in addition to ADS-B targets, are supported and are shown as tan, rectangular ICONs.
They are displayed both on the Traffic Function page, and on the Custom Map when traffic is turned on.
Target Color
Service vehicle targets are colored in tan. Aircraft targets are cyan in color. Selected targets are green in color.
Traffic Altitude Values
Altitudes shown next to the traffic icon are in hundreds of feet (09 = 900 feet). Altitude values shown in all
other locations and displays are the actual values in feet (+100 = 100 feet).
Ident (GDL 90 UAT only)
The IDENT smart key allows the pilot to initiate a sequence that is equivalent to a standard transponder “Ident,” as
requested by ATC. When pressed, the Ident flag will be displayed while the GDL 90 UAT broadcasts the ident. The
MX20 must be configured to be the UAT’s control panel for this function to be available.
46
Detailed Operation
Confirm Code
ADS-B Traffic
When the MX20 starts up and you then press any function key, a pop-up will appear for you to confirm or set
your aircraft FID (Flight ID). Press OK to confirm the displayed FID or press 1200 to set the FID to 1200. The
FID will not be sent to the GDL 90 UAT until you confirm the FID. Note that when the GDL 90 powers up it
defaults to a 1200 FID.
Operation
Confirm Flight ID Code (FID)
The controls at the bottom of the screen allow you to zoom in and out, initiate an Ident when connected to a
GDL 90 UAT, and to select each traffic target on the screen.
1. Press the FN key to reach the Function page showing the TRAF (Traffic) “smart” key.
2. Press TRAF.
3. Press the IN key to zoom in. Press the OUT key to zoom out.
4. With the GDL 90 UAT only, press the IDENT key to initiate an Ident for ATC purposes. A green flag will
appear on the left side of the display when the GDL 90 UAT reports that it is sending an ident over the air.
5. Press the SELECT key to consecutively select each Traffic item that is shown on the display. When a
target is selected, additional information about that target is shown in the upper right corner of the
display. The selected target will be highlighted in green on the display. Surface vehicle targets cannot be
selected.
Information about the selected target includes: ID, aircraft type, position between target and ownship,
distance, speed, and altitude. Position is noted in clock numerals as relative to direction of travel for
each aircraft. For instance, a position noted as 11/2 means that the traffic is at your aircraft (ownship)
11 o’clock position and your aircraft (ownship) is at the target’s 2 o’clock position.
Selected ADS-B Target Information Detail
Traffic Option Page 1
The first option page of the Traffic function lets you select options for the choices of Transmit Status, Broadcast
ID, Transponder Code, Set FID to 1200, and Service codes. The last option selection takes you to the next page
of options.
ADS-B Traffic Menu Items (Page 1)
47
Detailed Operation
ADS-B Traffic
Transmit Status
(ADS-B Broadcast Options - GDL 90 UAT only)
Selecting Tx Alt allows ADS-B position reports to be transmitted with altitude information. Tx Alt Off removes
altitude information from the ADS-B position reports. Standby suspends ADS-B position reports, but displays
other aircraft data when available. These modes are similar to “ALT,” “ON,” and “Standby” on a standard transponder. The MX20 must be configured as the UAT’s control panel to make this function available.
ADS-B Broadcast Mode Control
For ADS-B equipped installs, this feature allows the pilot to control the broadcast mode of their aircraft.
Broadcast options are controlled via the Traffic Function Menu and allow the pilot to toggle between Broadcast
FID / Broadcast VFR. The MX20 must be configured as the UAT’s control panel to make this function available.
Broadcast FID
Causes the currently set Flight ID and permanently assigned ICAO address to be broadcast with the aircraft’s
current position. The Flight ID and the ICAO address are shown on the lower right corner of the Traffic Function page. The Flight ID is pilot-settable via the menu option “Enter FID” in alphanumeric characters. The
ICAO address is a value set during system install by the installer.
Broadcast VFR
Causes a fixed Flight ID of “VFR” and a randomly generated ICAO address to be broadcast with the aircraft’s
current position. This mode is similar to anonymously squawking “VFR 1200” on a standard transponder.
48
Detailed Operation
Enter Code (GDL 90 UAT only)
ADS-B Traffic
This is where you enter the ATC-assigned transponder code. This code entered into the MX20 does NOT
control the code on Mode A, C, or S transponders. It only sends the selected code to the GDL 90 UAT for
inclusion into the position report. The MX20 must be configured as the UAT’s control panel to make this function available.
Set 1200
Pressing the Set 1200 key inserts the code 1200 into the Flight ID. This code entered into the MX20 does
NOT control the code on Mode A, C, or S transponders.
Services
The Services option allows emergency broadcast functions to be sent over the data-link radio. When pressed, a
list of standard emergency/service codes will be presented. The desired broadcast function can be selected and
broadcast by pressing the TRANS (Transmit) “smart” key or cancelled by pressing the CANCEL “smart key.”
When a special service code is being transmitted, the services label is illuminated. To terminate the broadcast,
press the SERVICES option again. Once terminated, the code will revert back to the previously set code. The
MX20 must be configured as the UAT’s control panel to make this function available.
ADS-B Traffic Menu Items (Page 2)
Traffic Menu Option Page 2
The second menu option page of the Traffic function lets you select options for the choices of Time Interval,
Traffic Altitude Filter, Altitude, Flight Plan, and Traffic Map Orientation.
ADS-B Broadcast ID Info
Time
The time interval option sets the amount of time to estimate the path and location of the traffic. The path of
the traffic is shown by the line extending from the point on the end of the traffic arrow icon. The end of the
line shows the point where the traffic item will be at the end of the selected time interval. Select 1, 1.5, 2-5, or
10 minutes.
Press the Main MENU ITEM key to display the next page of menu items.
49
Detailed Operation
ADS-B Traffic
Traffic Altitude Filter
For ADS-B equipped installs, an altitude filter allows targets that are outside of a ±2000 foot vertical range to
be filtered off the display.
This option is controlled via the Traffic Function Menu and causes the on-screen mode to change from “ALL”
to “±2000” in the upper left of the Traffic Function screen.
In the “ALL” mode, all targets, regardless of their altitude, are shown. In ±2000 foot mode, only targets that are
within 2000 feet above or below the ownship altitude are shown.
Altitude Option (Relative/Pressure)
Traffic Menu Items (Page 3)
The altitude option lets you select between relative and pressure altitude in hundreds of feet. The altitude option choice is shown on the upper left corner of the screen while in the graphic display option. When Relative
Altitude is selected, the altitude value on the traffic is shown relative to your altitude. A “+” indicates the target
is above your altitude. A “-” indicates the target is below your altitude. For instance, if a value of +80 is shown,
the value means that the indicated traffic is 8000 feet above your altitude. When Pressure Altitude is selected,
if a value of 121 is shown, the value means that the indicated traffic is at 12,100 feet pressure altitude. Pressure
altitude does not show a + or -. Remember that pressure altitude can be substantially different than the barocorrected altitude shown on the altimeter in your aircraft.
Flight Plan
The Flight Plan option controls the display of the Flight Plan course line. Pressing the MENU ITEM key next
to the Flight Plan option toggles between showing and not showing the Flight Plan route line.
Traffic Map Orientation
The Traffic Map Orientation option lets you choose between a 360-degree compass rose or an arc that covers
about 90 degrees over the top of the display. Your aircraft position (ownship) is shown by an empty white
triangle near the center of the display. The Traffic function display is always in the Track Up mode.
50
Detailed Operation
Traffic Menu Option Page 3
ADS-B Traffic
The third menu option page of the Traffic function lets you select options for the choices of Display mode,
Flight ID Editing, and Labeling. The last option selection takes you back to the first page of options.
Display Mode
The display mode lets you select either a graphic or text version of traffic information.
Graphic Display
The graphic traffic display shows your location, nearby traffic, and information about the traffic.
Text Display
The text traffic display shows the distance to the traffic item, flight id, category, position, speed, and altitude.
The currently selected target is shown in green. The traffic list is sorted by distance with the closest traffic to
your current position shown on the top line. The total number of targets tracked is shown in the upper left
corner. Up to 12 of the nearest targets are listed.
ADS-B Traffic Text Display
Information about the selected target includes: ID, aircraft type, position between target and ownship, distance,
speed, and altitude. Position is noted in clock numerals as relative to direction of travel for each aircraft. For
instance, a position noted as 10/1 means that the traffic is at your aircraft (ownship) 10 o’clock position and
your aircraft (ownship) is at the target’s 1 o’clock position.
Flight ID Editing
The Enter Flight ID option allows you to edit your broadcasted Flight ID when the editing function is enabled. The
Function “smart” keys at the bottom of the screen change to arrow keys. Use the UP/DOWN arrow keys to change
the characters. Use the LEFT/RIGHT arrow keys to move between characters. Press the MENU/ENTER key to save
the displayed Flight ID. The Flight ID is only sent when the Flight ID broadcast option is enabled. Note that the
GDL 90 UAT does not allow the space or period characters. The MX20 must be configured as the UAT’s control
panel to make this function available.
Label
The LABEL menu key toggles the state of the labels adjacent to the target symbols. Turning labels off will
remove the Flight ID and flight vector.
UAT Flight ID Editing
51
Detailed Operation
TIS-A Traffic
TIS-A Traffic (TRAF) Function
The MX20 I/O supports the Traffic Information Services – Addressed (TIS-A) function when interfaced to a
third party TIS-A sensor. The traffic function, when interfaced to the Garmin GTX 330 is capable of displaying
traffic targets supplied by that sensor. Standard TCAS-type symbology is used and several menu options are
available for adjusting traffic presentation and sensor operation. Review the Limitations section in the front of
this guide for the limitations that apply to traffic data.
NOTE: TIS-A is not a collision avoidance system. It is an aide to visual acquisition and does not
relieve the flight crew of their responsibility to “see and avoid.” There are no evasive aircraft
maneuvers authorized, recommended, or provided for as a result of displayed TIS-A targets.
Refer to the TIS-A Sensor documentation for additional information.
Traffic Depiction
It is important to note that not all traffic may be displayed and that TIS-A is only an aide to visual acquisition.
TIS-A is there to assist you to visually acquire other aircraft around you and does not provide any information
other than making you aware of other aircraft around you that the Mode-S terminal radar can “see.” This may
not include all traffic around you. Only transponder-equipped aircraft that are visible to the terminal radar
sensor will be broadcast to your aircraft. Up to eight (8) targets may be displayed at any given time. This is a
limitation of the ground sensor since the ground sensor provides the data via the radar pulse.
Your position (ownship symbol) is located at the tip of the triangle icon. The traffic function is always shown
in heading mode, meaning that track-based flight plan information is not overlaid. Traffic can also be shown
on the Custom Map and in a small thumbnail view presented in the upper left corner of the screen.
TIS-A Traffic Page with Menu Items
52
Traffic targets are displayed relative to the ownship symbol and include a relative altitude in 100’s of feet above
(+) or below (-) your aircraft’s altitude. Targets also include a climb () or descent arrow () next to the relative altitude when the climb or descent rates are greater than 500 feet per minute.
Detailed Operation
Targets are displayed at full brightness for the first six (0 to 6) seconds. If the TIS-A data is not refreshed, the
targets will be displayed at a reduced brightness for the next six (6 to 12) seconds during an interval known
as “coasting,” and removed from the display after 12 seconds. “Coasting” usually results from the TIS-A sensor
missing a radar sweep. This typically happens because the aircraft antenna line of sight to the radar has been
obstructed, most likely by either terrain or because the aircraft is banking.
TIS-A Traffic
TIS-A Menu Options
The MX20 displays the current operating mode when the MENU key is pressed.
Alert Hot Key (TA Prompt)
When selected and viewing another function, this feature will automatically display the function menu at the
bottom of the screen with the TRAF function highlighted when a Traffic Advisory (TA) alert is received from
the TIS-A sensor. You may select the traffic function by pressing the corresponding Smart key or continue to
view the currently displayed function.
Traffic Alert Pop-Up (TA Popup)
When selected and viewing another function, this feature will automatically display the traffic function screen
when a Traffic Advisory (TA) alert is received from the TIS-A sensor. You may then view another function by
pressing the FN key and selecting the desired function.
Operate/Standby
The MX20, when installed with a control wire to the GTX 330, controls the TIS-A sensor operating mode. The
TIS-A sensor defaults to “Operate” when turned on.
Symbology
•
•
•
•
TIS-A targets are categorized as either “Proximate Traffic” or “Traffic Advisories.”
Proximate Traffic targets are depicted as hollow blue diamonds.
Traffic Advisory targets are depicted as solid yellow/amber circles.
Vectors extending from the targets indicate the target’s direction of travel as reported by the TIS-A
sensor. The vector length has no meaning.
Ownship (Your Aircraft)
Proximate traffic target with direction
of flight vector and relative altitude
Traffic advisory target with direction of
flight vector and relative altitude
53
Detailed Operation
TIS-A Traffic
Traffic Status Indicators
The following status indicators are displayed in the lower right portion of the display:
“TIS Operating” to indicate the TIS-A Sensor is operating and within TIS-A service coverage.
“TIS Coasting” to indicate that the target information is between 6 and 12 seconds old. This may happen if the
TIS-A sensor has missed a radar sweep. Target brightness is also reduced to indicate this condition.
“TIS Unavailable” to indicate the TIS-A sensor is operating, but outside of TIS-A service coverage.
“TIS Standby” to indicate the TIS-A sensor is in standby mode and not processing TIS-A information, even if it
is available.
TIS-A Traffic Page with Traffic Off-Scale
54
“Traffic Off Scale,” noted in amber in the lower center of the display, indicates that traffic has been reported but
is not displayed because it is beyond the current map scale (zoom level).
Detailed Operation
Flight Plan (FPL) Function
Flight Plan
Use the Flight Plan function to view details about your flight plan route. Press the UP/DOWN arrow “smart”
keys to step through the waypoints in your flight plan. Press the INFO “smart” key to view information
about the waypoint. The Flight Plan Function shows the Current Flight Plan that is active in the connected
navigation source (i.e. GPS receiver). The Current To Waypoint box shows the current leg of the flight plan.
The Current Flight Plan box shows all of the legs of your flight plan with the current leg indicated in magenta.
Listed are each leg with the bearing and distance between the legs. The Current Nav Data box shows the aircraft current position in latitude and longitude, ground speed, and track. In the lower right corner information
for the current waypoint is displayed in the Waypoint Info box. The Nearest Center frequency is shown just
above the flight plan. The Flight Plan function does not have any options.
Runway diagrams of airports will be displayed in the same orientation as the main map (i.e., North Up, Track
Up, or DTK Up).
Flight Plan Information (UAO selected)
1. Press the FPL function smart key to reach the Flight Plan function.
2. Press the Up or Down function smart keys to move up and down the flight plan list in the Current
Flight Plan window. The details for the selected waypoint are shown in the Waypoint Info window on
the right side of the screen.
3. Each press the Info function smart key will step through the available pages of Waypoint Information.
Flight Plan Information (PDX selected)
55
Detailed Operation
Terrain
Terrain (TER) Function
The Terrain Function shows a map of the terrain in the area relative to your airplane’s position and altitude.
The MX20 has a standard internal based terrain function. The MX20 also supports an external TAWS sensor.
When the external TAWS sensor is connected, it replaces the MX20’s internal Terrain function.
Terrain information can be supplied by one of two sources:
• Internal MX20-Based Terrain
• External TAWS-Based Terrain
Review the Limitations section in the front of this guide for the limitations that apply to the terrain data.
Internal MX20-Based Terrain
Terrain Elevation Color Coding Reference
The altitude information comes from an external altitude encoder. The displayed altimeter setting has to be
adjusted, or baro-corrected, just like the one in your aircraft’s instrument panel.
The terrain screen has a 360-degree and a 120-degree display. Both screens will show terrain relative to your
position. Colors used for terrain display are shown below.
NOTE: The Terrain function shows you the general terrain elevations relative to your altitude and
are advisory in nature. Individual obstructions may be shown if available in the database. Terrain is
displayed from database information and may therefore potentially contain some degree of error.
Do not use this information for navigation.
Use the IN and OUT keys at the bottom of the screen to zoom in and zoom out. The zoom range is shown in
the lower left corner of the screen.
Use the BARO+ and BARO- keys at the bottom of the screen to make minor adjustments to the barometric
pressure value.
Terrain Page with MX20-Based Data
56
Detailed Operation
Terrain
Color
RED
Description
Terrain that is within 500 feet, or above, your current altitude
YELLOW
Terrain that is within 1000 feet of your current altitude
GREEN
Terrain that is within 2000 feet of your current altitude
BLACK
Terrain that is more than 2000 feet below your current altitude
LIGHT BLUE
No terrain data is available
Terrain Option Page
The Terrain option page lets you select options for the choices of Flight Plan, Map Orientation, and setting the
barometric pressure.
Flight Plan
The Flight Plan option controls the display of the Flight Plan course line. Pressing the MENU ITEM key next
to the Flight Plan option toggles between showing and not showing the Flight Plan route line.
Terrain option page showing 120 degree arc
TRK Up Arc/TRK Up 360
This ring is marked in nautical miles from your airplane with the ring placed at one half the distance of the
map scale. For instance if you have the map scales at 50 miles, the ring will be at 25 miles. The ring will
change automatically as you change the map scale. The Terrain function display is always in the Track Up
mode.
Terrain option page showing 360 degree arc
57
Detailed Operation
Terrain
Set Barometer
Use the Set Barometer option to enter the correct barometric pressure for your area or adjust the current value.
This option is best for making large changes. The BARO + and BARO - keys are more useful for minor corrections. Use the UP/DOWN arrow keys to increase or decrease the values. Use the LEFT/RIGHT arrow keys to
move between characters. Press the ENTER key to save the displayed barometric pressure.
A “Confirm Current Baro” message is displayed at the initial power-up and again once every 30 minutes of
operation as a reminder to check your baro setting.
TER Data Flag
The TER flag will appear if no terrain data is available for the advisory coverage area.
External TAWS-Based Terrain Display
The external TAWS-based Terrain feature shows terrain as provided by an external TAWS sensor when connected to and configured to receive that data from either the KGP-560, Landmark 8000, or KMH 820.
When displaying external TAWS-based terrain, the external sensor determines the color coding and graphical
presentation of terrain in the proximity of the aircraft. See the Pilots Guide for the Honeywell KGP-560, L3
(Goodrich) Landmark, or KMH 820 for additional information on how to interpret this information.
NOTE: When the MX20 is configured for an external Terrain Awareness and Warning System
(TAWS), the “Alt” and “Baro” fields normally present on the Navigational Bar will not be
displayed.
Terrain Display of External TAWS-Based Data
58
TAWS Pop-Up Modes
The MX20 will detect TAWS based terrain alerts and will force a pop-up of the Terrain Function when required. Terrain based Pop-Ups have higher priority over traffic based pop-up functionality.
Detailed Operation
UAT Flight Information Service (FIS) Function
UAT - FIS
The FIS Function is a graphic weather display capable of displaying graphical weather information on UAT
equipped installations. Graphical data is overlaid on the map indicating the rainfall detected by ground based
radar for a specific area. The colors indicating increasing levels of rainfall progresses from light green for light
rainfall to magenta for heavy rainfall. Review the Limitations section in the front of this guide for the limitations that apply to the FIS data. Rainfall data is color coded as follows:
Brown/Blue
Light Green
Dark Green
Yellow
Amber
Red
Magenta
Cyan
Zero rainfall (transparent color)
Light rainfall
Heavy rainfall
No rainfall data available
UAT FIS Graphic Weather Info with GDL 90
A cyan checkerboard pattern indicates that no data is available for area, and rainfall in that area is unknown.
When weather data is received, the airborne system will display that data for 20 minutes, or until the power is
cycled. If no new data has been received for a given area, the rainfall will be removed and the area will revert
back to the cyan checkerboard pattern.
The FIS Function is based on a ground-to-air data link and requires that the appropriate ground systems are
broadcasting weather data and the aircraft is within reception range of the Ground Broadcast Transceiver (GBT).
If any weather data has been received in the previous two minutes, the “Service” indicator in the lower left
of the screen will display “Available.” If no data has been received in this time period, “Not Available” will
be shown. This indicator shows if the aircraft is currently within reception coverage of a ground station with
weather broadcast capabilities.
The ground system determines the weather coverage area and extent of data that is transmitted by each ground
station. The MX20 will display any weather received for the entire world.
59
Detailed Operation
UAT - FIS
Text Display
FIS text messages are available on the text display and include METARs and TAFs. Messages are composed of
four parts: message type, location, time, and message body.
Viewing Text
UAT FIS Text Weather Info with GDL 90
1. Press the FN key and then the FIS function key when displayed.
2. Press the Menu/Enter key brings up the menu items.
3. Press the Text Menu key to select the Text (Text) sub-function.
4. Press the  or  function smart keys to move up or down the FIS category list to highlight TAF or
METAR.
5. Press the  arrow key to move to the items in the list for the TAF or METAR category.
6. While in the list for the selected category, press the  or  function smart keys to highlight a
particular message for the selected category. The text for the selected message is shown in the FIS
Message window in the upper portion of the screen.
7. Press the  arrow key to move to the FIS message time stamp in the farthest right column. The smart
key to the farthest right on the bottom of the screen will change to View. Press View to expand the
FIS Message window at the top of the screen. A green arrow at the bottom of the FIS Message window
indicates the more text is available.
Clearing Text FIS Messages
While the FIS Category is highlighted, the smart key to the farthest right on the bottom of the
screen will show as Clear. Pressing the Clear key will clear all FIS messages for the highlighted
category type. Messages will be displayed again as they are refreshed.
Sorting Text FIS Messages
UAT FIS Text Weather Message Time Stamp
60
While the cursor is in the Ident column, the smart key to the farthest right on the bottom of the
screen will show as Sort. Pressing the Sort key repeatedly will step through the sorting choices of:
Nearest Present Position, Nearest Final Waypoint, or Nearest Next Waypoint.
Detailed Operation
WSI InFlight™ Flight Information Service (FIS) Function
WSI - FIS
The Flight Information Service (FIS) Function allows access to graphic and text weather data messages on WSI
InFlight-equipped installations. Graphical weather includes US and Canadian radar, METARs, and TAFs. You
can select Graphical WX, Text, or Status information by pressing the MENU/ENTER key and then choosing
the type of information with the MENU ITEM keys. Review the Limitations section in the front of this guide
for the limitations that apply to the FIS data.
Product Times
Product times shown on the lower portion of the display are: GM for Graphical METARs, RD for weather
radar, ETP for EchoTops, and WB for Warning Boxes. Times are Zulu times when the data was assembled on the
ground, not the time the data was received by the FIS sensor.
For MX20s that have any GPS receiver that provides time, the Zulu time is the time reported by the GPS
receiver. For MX20s that do not have time provided by a GPS receiver, this field is invalid and dashed out.
WSI FIS Graphic Weather Info
Product times are shown in white when they are 0 to 5 minutes old, gray when they are 5 to 10 minutes old,
and yellow when they are older than 10 minutes. For MX20s that have time available from a GPS receiver,
age is based on the time reported by the GPS receiver. For MX20s that do not have time available from a GPS
receiver, age is based on the time the data was received from the FIS sensor. In this case, the age of the data
may be older than what is shown by the color coding.
Zulu Time
Graphical METARs
Weather Radar
Echo Tops
Warning Boxes
WSI FIS Graphic Weather Product Times
61
Detailed Operation
WSI - FIS
Graphical Weather (WX) Display
Weather radar images are available for display from the FIS sensor by selecting the Graphical WX option. A
cyan cross-hatch pattern indicates no data has been received from the FIS sensor. Solid cyan areas represent
areas where the ground based weather radars are unable to monitor weather. This is typically caused by terrain
obstruction. When depicted, color coded weather intensity is presented and is an indication of radar echo
return strength. The same colors are used for US and Canadian weather. Because of weather radar differences,
do not assume that the same actual weather intensities are represented by the same colors. The intensities associated with the color codes are available by viewing the Legend Overlay Option. The legend associated with
the weather radar image is shown for the depicted radar data, US or Canadian.
Graphical WX Overlay Options
A variety of graphical information is available with the Overlay function that is available when viewing the
Graphical WX display. Press the OVRL function key to view and select available options. Some or all of the
following may be available, based on your FIS subscription.
• METARs, US, and/or Canadian (determined by subscription)
• SIGMETs & AIRMETs
• Echo Tops
• TFRs
• US and/or Canadian Weather Radar (determined by subscription)
• Label
• Flight Plan
• Legend
• Map Detail
• Map Orientation
62
Detailed Operation
Menu Options for Overlay Page 1
WSI - FIS
1. Press the OVRL function key to allow selection of the Overlay choices when viewing the Graphical WX
option.
2. Press MENU/ENTER to display menu items for the Overlay. Press NEXT PAGE to see more
options.
METARs
When enabled, METARs are available as colored circles or diamonds at airports that provide METAR reports.
Press the METARs Menu Item key to cycle through the options of circular, diamond, or no METARs. Refer to
the Legend for a description of the color code. US and Canadian METARS use the same color coding and will
be shown at the same time with a subscription to both products.
SIGMETs & AIRMETs
When enabled, the following SIGMETs and AIRMETs are available for display:
• “SIGMETs” are for Convective SIGMETs
• “T AIRMET” is for Surface/Aloft Turbulence AIRMETs
• “Z AIRMET” is for Icing AIRMET
• “S AIRMET” is for an IFR condition, such as a mountain obstruction
• “Other” is for other types of AIRMETs
• “No Warn. Area” is to turn off all SIGMETs and AIRMETs
WSI FIS Graphic Weather Overlay Menu Items (Page1)
These are collectively known as Warning Boxes and are displayed as color coded outlines of the affected area.
Refer to the Legend for a description of the color coding.
Echo Tops
Echo Tops indicate the location, elevation, and direction the highest radar echo. This is typically associated
with storms. This may not indicate the top of a storm or clouds, only the highest radar return echo. Refer to
the Legend for a description of the Echo Tops coding.
63
Detailed Operation
WSI - FIS
Temporary Flight Restrictions (TFRs)
Temporary Flight Restrictions (TFRs) indicate areas where flight restrictions have been imposed. They are
depicted as areas with reddish-brown outlines and a cross-hatch pattern. The area may also contain the TFR
identifier. The TFR identifier includes the TFR number and upper altitude.
US or Canadian Weather Radar
This option is only available when subscribed to both radar products. WSI offers subscriptions for US and Canadian radar data. Because of differences in radar technology, both data types cannot be displayed at the same
time. When subscribed to both weather radar products, you can alternate between the two with the Overlay
option.
Menu Options for Overlay Page 2
1. Press the OVRL function key to allow selection of the Overlay choices when viewing the Graphical WX
option.
2. Press MENU/ENTER to display menu items for the Overlay.
3. Press MAIN MENU to return to the Main Menu.
Label
Press MENU/ENTER key and then press the LABEL Menu Item key to toggle the station labels on and off.
Flight Plan
WSI FIS Graphic Weather Menu Items
64
Press MENU/ENTER key and then press the FLIGHT PLAN Menu Item key to toggle the Flight Plan course
line on and off. The magenta line is the active leg.
Detailed Operation
Legend
WSI - FIS
Press MENU/ENTER key and then press the LEGEND Menu Item key to display the legends describing the
graphic display colors. Press the LEGEND Menu Item key once to display a legend for the Metar, Weather, and
Radar colors. Press the LEGEND key a second time to display a legend for AIRMET and SIGMET colors and
EchoTop graphics.
When viewing the Canadian radar data, the following legends will appear. Only the lower portion of the
legend changes for Canadian radar data.
Map Detail
WSI FIS Graphic Weather Legend (US)
Press MENU/ENTER key and then press the Map Detail Menu Item key to choose between the display of No
Overlays, the Base Map, or Map and Nav Aids.
Map Orientation
Press MENU/ENTER key and then press the Map Orientation Menu Item key to choose the configuration of
the map orientation of DTK Up, North Up, TRK Up, TRK Up Arc, or TRK Up 360.
WSI FIS Graphic Weather Legend (Canada)
WSI FIS Graphic Weather Menu Items (Trk Arc Up)
65
Detailed Operation
WSI - FIS
Text Display
FIS text messages are available on the text display and include METARs, TAFs, AIRMETs, SIGMETs, and TFRs.
Individual text messages are updated every five minutes and composed of four parts: message type, location,
time and message body.
Text Information Examples:
TYPE
WSI FIS Text Weather Messages
LOCATION
TIME
MESSAGE BODY
METAR
KSLE
191534Z
METAR TEXT
METAR
KMMV
181423Z
METAR TEXT
TAF
KSLE
171423Z
TAF TEXT
The upper portion of the FIS Function page is used for displaying the contents of an individual FIS message
while the lower portion of the screen is used for categorization and sorting of different message types, such as
METARS, TAFs, SIGMETS, etc.
The lower portion of the screen is divided into three distinct columns to provide simple categorization of
received text messages. The columns are loosely defined as message type, location and time stamp to handle
the most common type of FIS up-link data.
The different message types and data content are fully controlled by the ground broadcast systems. The airborne system will automatically display any message type that is received.
US and Canadian text METARs, text and graphical TAFs are available at the same time when subscribed to
both US and Canadian products. US and Canadian METARs and TAFs use the same format as described below.
Selecting Text Data
Green colored Selection Pointers above the smart keys can be used to select an alternate message for display.
The selected line in the section above the smart keys is noted by a green circle with an “I” inside. The pilot is
able to move the green Selection Pointer within the lower portion of the page to select the desired category,
location and time that is of interest with the use of the arrow keys.
66
Detailed Operation
Using this interface, the pilot can easily select the desired message type (such as METAR), then select the
airport of interest (such as KPDX), then select a specific METAR report by time (such as 141512Z).
WSI - FIS
At all times, the message displayed in the upper FIS Message area on the screen matches the highlighted entry
in the FIS Category area below.
The system shows text METAR and TAF data for the 25 locations nearest the present position and up to the 25
locations nearest to the destination in the flight plan that are reporting weather information. The system will
show all other data provided by the FIS sensor.
Smart Key Function
The fourth “smart” key performs special functions within the FIS Function:
When the Selection Pointer is located in the first of the three columns, the fourth “smart” key displays the label
“Clear”. When pressed, all messages for the currently selected category will be cleared from the MX20. This
feature can be used to clear old, bad or corrupted data received over the data link.
When the Selection Pointer is in the center-most column, the fourth “smart” key displays the label “Sort.” See
below for how the sort option works.
When the Selection Pointer is in the right most column, the fourth “smart” key displays the label “View.” When
pressed, the currently viewed message is presented in a full screen mode. This feature provides a mechanism
to view large textual messages that do not fit within the upper half of the display area. Some messages may be
longer than can be displayed in the full screen mode. These are indicated by a small arrow at the bottom of the
area. Press the arrow keys to scroll through the information.
Viewing Text TAFs
Pressing the “View” key when highlighting TAFs will display a full screen with the text TAF at the top and a
graphic representation in the lower portion of the screen. The Time column includes both date and time. The
METARs column displays active METAR information. The Prev column displays prevailing conditions. The
Tempo column displays temporary conditions. The Prob column displays probable conditions. Press the arrow keys to scroll the information and the View key to exit this view.
WSI FIS Graphic and Text TAF Weather Messages
67
Detailed Operation
WSI - FIS
Sorting FIS Messages
Special sorting capabilities are provided for in the central “location” column. This sorting allows weather
reports to be sorted by location based on different criteria.
When the green Selection Pointer is located in the second column, the fourth “smart” key changes to read
“Sort.” When consecutively pressed, the sorting of the messages toggle with the following options:
• (Distance to) Nearest Present Position
• (Distance to) Nearest Final Waypoint
• (Distance to) Nearest Next Waypoint Alphanumerically
When the sorting is based on distances from current ownship to a given airport, the system must be able to correlate
a Jeppesen airport that matches the location field of the received message. If this lookup is successful, a distance
shall be presented adjacent to the location text. If no corresponding location can be determined, no distance is assigned but the message is presented at the end of the list.
The default sorting method is “Nearest Present Position” and is reset when the FIS Function is re-entered.
Status Information
Status information shows satellite signal reception status, the amount of data received, and the weather products that have been activated. Contact your FIS service provider to activate and deactivate products.
XM FIS Data Link Status
68
Detailed Operation
GDL 69/69A Flight Information Service (FIS) Function
GDL 69/69A - FIS
The FIS Function is capable of displaying graphical weather information through the XM Satellite Radio Service when activated in the optional installation of the GDL 69/69A. A variety of graphical data can be overlaid
on the map at the touch of a button. Review the Limitations section in the front of this guide for the limitations
that apply to the FIS data. To minimize the possibility of display clutter, up to four weather products may be
displayed at any one time. When four weather products are displayed, you must first disable a product before
enabling another.
XM Satellite Radio offers several subscriptions, that are differentiated by the products provided with each level.
Refer to the XM Satellite Radio web site for a description of the subscription options. The MX20 provides options
via the menu item keys for all supported functions, even those that are not available for all subscription levels.
1. Press the FN key and then the FIS function key when displayed.
2. The first two function smart keys at the bottom of the screen zoom IN and OUT on the map.
3. The PAN key brings up the movement menu item keys at the right of the screen that allow you to move
the view of the map.
4. The fourth function smart key on the right will step through the four sub-functions of GDL 69/69A FIS:
Current, Forecast, Text, and Status.
5. The Menu/Enter key brings up menu items for more detail on each sub-function.
GDL 69/69A FIS Menu Page 1
Weather in Current Function Limited to 20 nm or
more
Weather Product Zoom Scale
The weather products available using the GDL 69/69A are divided into two classes: those drawn at all zoom
settings and those drawn when the zoom scale is greater than 15 nm.
Products shown at all zoom levels: METARs, Cell Movement, City Forecast, County Warnings, Cyclones (or
Hurricane Track), Lightning, and TFRs.
Products shown at zoom levels greater than 15 nm: AIRMETs, SIGMETs, Freezing Level, Echo Tops, Cloud
Tops, NEXRAD, Winds Aloft, and (Radar) Coverage. When any of these products are displayed and the zoom
level is less than 20 nm, “Map Scale Limts Wx” will be displayed in the lower right corner.
GDL 69/69A FIS Menu Page 1 with NEXRAD Activated
69
Detailed Operation
GDL 69/69A - FIS
Temporary Flight Restrictions (TFRs)
Temporary Flight Restrictions (TFRs) indicate areas where flight restrictions have been imposed. They are
depicted as areas with reddish-brown outlines. The area may also contain the TFR identifier label. The TFR
identifier label includes the TFR number and upper altitude. Press the TFR Lbl Menu Item key to toggle the
TFR Identifier Labels on and off. TFRs are drawn on the FIS page when provided by the FIS sensor and can not
be enabled or disabled. TFR text information is described on page 81.
NEXRAD Description
TFR Outline with TFR Number and Upper Altitude
WSR-88D weather surveillance radar or NEXRAD (NEXt generation RADar) is a Doppler radar system that has
greatly improved the detection of meteorological events such as thunderstorms, tornadoes, and hurricanes.
An extensive network of NEXRAD stations provides almost complete radar coverage of the continental United
States, Alaska, and Hawaii. The unobstructed range of each NEXRAD is 124 nautical miles.
NEXRAD Abnormalities
There are possible abnormalities regarding displayed NEXRAD images. Some, but not all, causes of abnormal
displayed information include:
• Ground Clutter
• Strobes and spurious radar data
• Sun strobes, when the radar antenna points directly at the sun
• Military aircraft deploy metallic dust which can cause alterations in radar scans
• Interference from buildings or mountains, which may cause shadows
NEXRAD Limitations
NEXRAD Color Legend
70
Certain limitations exist regarding the NEXRAD radar displays. Some, but not all, are listed for the user’s awareness:
• NEXRAD base reflectivity does not provide sufficient information to determine cloud layers or
precipitation characteristics (hail vs. rain, etc).
• NEXRAD base reflectivity is sampled at the minimum antenna elevation angle. An individual NEXRAD
site cannot depict high altitude storms at close ranges, and has no information about storms directly
over the site.
• The resolution of displayed NEXRAD data is 2 kilometers. Therefore, when zoomed in on the display,
each square block is 2 kilometers. The intensity level reflected by the square will be the highest level
sampled within the 2 kilometer square area.
Detailed Operation
NEXRAD Intensity
GDL 69/69A - FIS
Colors are used to identify the different NEXRAD echo intensities (reflectivity) measured in dBZ (decibels of
Z). “Reflectivity” is the amount of transmitted power returned to the radar receiver. Reflectivity (designated by
the letter Z) covers a wide range of signals (from very weak to very strong). So, a more convenient number for
calculations and comparison, a decibel (or logarithmic) scale (dBZ), is used. The dBZ values increase as the
strength of the signal returned to the radar increases.
Current
The Current sub-function provides an overlay of the currently selected weather information. The four pages of
menu item selections allow you to modify the display of NexRad, radar coverage, METARs, lightning, thunderstorm cell movement, cloud tops, echo tops, winds aloft, information labels, flight plan course line, weather
legends, map and navaids, and map orientation.
1. Press the FN key and then the FIS function key when displayed.
2. Press the fourth function smart key on the right to select the Current (Crnt) sub-function.
3. The Menu/Enter key brings up menu items for more detail on each sub-function.
GDL 69/69A FIS with NEXRAD Weather and Legend
NEXRAD
When enabled, NEXRAD weather information is shown. Composite data from all of the NEXRAD radar sites
in the United States is shown. This data is composed of the maximum reflectivity from the individual radar
sweeps. The display of the information is color-coded to indicate the weather level severity. Information about
which sites are operational or off-line is also available (see coverage below). The update rate is every five minutes. Refer to the legend for a description of the color code.
1. Press the  or  arrow keys to display the legends for the selected services.
2. Press Done to turn the Legends off.
Coverage
The Coverage menu item when selected shows the currently available NEXRAD radar coverage areas in cyan
where information is being collected. Areas where radar capability exists, but is not active or is off-line, will not
be shown as available.
GDL 69/69A FIS Radar Coverage
71
Detailed Operation
GDL 69/69A - FIS
METARs
When enabled, METARs (METeorological Aviation Reports) are shown as colored flags at airports that provide
METAR reports. Press the METARs Menu Item key to enable or disable METARs. Refer to the Legend for a
description of the color code. The update rate is every 12 minutes.
METAR Legend
GDL 69/69A FIS METARs
1. Press the  or  arrow keys to display the legends for the selected services.
2. Press Done to turn the Legends off.
Lightning
When enabled, lightning strikes and cells are shown. Lightning information indicates the location of cloud-toground lightning strikes. The update rate is every five minutes.
Cell Movement
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.
72
Detailed Operation
GDL 69/69A - FIS
Cloud Tops
When enabled, Cloud Tops data depicts the cloud top altitude determined from satellite imagery. Refer to the
legend for a description of the Cloud Tops color coding. The update rate is every 15 minutes.
Note: Cloud Tops and Echo Tops use the same color scaling to represent altitude. Both products
can not be displayed at the same time. Selecting Cloud Tops automatically disables Echo Tops.
Cloud Top Legend
GDL 69/69A FIS Cloud Tops
Echo Tops
Echo Tops indicate the location, elevation, and direction the highest radar echo. This is typically associated
with storms. This may not indicate the top of a storm or clouds, only the highest radar return echo. The
information is derived from NEXRAD information and indicates the highest altitude at which precipitation is
falling. Refer to the Legend for a description of the Echo Tops coding. The update rate is every 7.5 minutes.
Note: Cloud Tops and Echo Tops use the same color scaling to represent altitude. Both products
can not be displayed at the same time. Selecting Echo Tops automatically disables Cloud Tops.
GDL 69/69A FIS Echo Tops
Echo Tops Legend
73
Detailed Operation
GDL 69/69A - FIS
Winds Aloft
The Winds Aloft selection provides the pilot with the wind speed and direction. The winds at a given altitude
are selected in the Winds Aloft Alt menu item. The update rate is every 12 minutes.
Winds Aloft Legend
Winds Aloft Altitude
XM FIS Winds Aloft
The Winds Aloft selection provides the pilot with the wind speed and direction at a selected altitude from
the ground up to 42,000 feet in altitude and is selected in 3,000 foot increments. When no data is shown at
a given altitude, the data for that altitude has not been received. Wait for the next update. The update rate is
every 12 minutes.
TFR Lbl
Press MENU/ENTER key and then press the TFR Lbl Menu Item key to toggle the TFR Identifier Labels on
and off. The TFR Identifier Labels note the TFR number and upper altitude near the TFR outline.
Label
Press MENU/ENTER key and then press the LABEL Menu Item key to toggle the station labels on and off.
Flight Plan
Press MENU/ENTER key and then press the FLIGHT PLAN Menu Item key to toggle the Flight Plan course
line on and off. The magenta line is the active leg.
74
Detailed Operation
GDL 69/69A - FIS
Legend
Press MENU/ENTER key and then
press the LEGEND Menu Item key
to display the legends describing the
graphic display coding.
1. Press the  or  arrow keys
to display the legends for the
selected services.
2. Press Done to turn the Legends
off.
NEXRAD Legend
Cloud Tops Legend
METAR Legend
Echo Tops Legend
Map Detail
AIRMET/SIGMET Legend
City Forecast Legend
Press MENU/ENTER key and then press the Map Detail Menu Item key to choose between the display of No
Overlays, the Base Map, or Map and Nav Aids.
Product Times
Product times are shown on the lower portion of the display and cannot be hidden. The times for each of the
enabled products (up to four at a time) are displayed. The following product times are shown: Nexrad for
NEXRAD radar, Coverage for active NEXRAD radar coverage areas, METAR, Echo Tops, Cloud Tops, Lightning, and Winds Aloft. Times are Zulu times when the data was assembled on the ground, not the time the data
was received or displayed by the FIS sensor.
County Warnings Legend
Freezing Levels Legend
Product times are shown in white when they are initially shown and change to blue and then yellow as they
pass certain age thresholds. A product time aging table is shown on the next page. For MX20s that do not have
time available from a GPS receiver, age is based on the time the data was received from the GDL 69/69A sensor.
In this case, the age of the data may be older than what is shown by the color coding.
Winds Aloft Legend
75
Detailed Operation
GDL 69/69A - FIS
FIS Product Times
Goes Blue After (Minutes)
Goes Yellow After (Minutes)
NEXRAD
8
13
Graphical METAR
15
75
Lightning
8
23
TFR
15
51
Cell Movement
4.25
5.5
Radar Coverage
8
13
METAR
15
75
Echo Tops
10.5
18
Winds Aloft
15
75
AIRMET
15
51
SIGMET
15
51
Cyclone
15
51
County Warnings
8
23
Freezing Level
15
75
City Forecasts
15
51
TAF
15
75
Cloud Tops
10.5
18
Map Orientation
Press MENU/ENTER key and then press the Map Orientation Menu Item key to choose the configuration of
the map orientation of DTK Up, North Up, TRK Up, TRK Up Arc, or TRK Up 360.
76
Detailed Operation
Forecast
GDL 69/69A - FIS
Weather forecast information is provided for an available City, SIGMETs, AIRMETs, Freezing Levels, County
warnings, and Cyclones. While using this feature you can also customize the display of information showing
map labels, flight plan line, legend.
1. Press the FN key and then the FIS function key when displayed.
2. Press the fourth function smart key on the right to select the Forecast (Fcst) sub-function.
3. The Menu/Enter key brings up menu items for more detail on each sub-function.
Note: Forecasts are intended to provide data on expected conditions. Actual conditions may
deviate from the forecast. It is the pilot’s responsibility to obtain current information from official sources and to update this information during the flight.
City
When enabled, the City forecast shows current or forecast conditions in available cities. Forecasts are available
for intervals of 12, 24, 36, and 48 hours. This menu item key enables or disables this product. Use the menu
item key below the City key to select the current or forecast time. The update rate is every 12 minutes.
XM FIS Forecast Menu Item Page 1
Forecast Time
The forecast time range can be selected to cover the current conditions, 12 hours, 24 hours, 36 hours, or 48
hours. Each press of the forecast time menu item key will step through times.
SIGMET
When enabled, SIGMETs (SIGnificant METeorological Information) advise the pilot of potentially hazardous
weather, other than convective activity, to all aircraft. The advisory covers an area of at least 3,000 square
miles at any one time. SIGMET data covers icing, turbulence, dust, and volcanic ash as issued by the National
Weather Service. The update rate is every 12 minutes.
Refer to the Legend for a description of the color coding.
XM FIS City Forecast
1. Press the  or  arrow keys to display the legends for the selected services.
2. Press Done to turn the Legends off.
77
Detailed Operation
GDL 69/69A - FIS
AIRMET
AIRMETs (AIRman’s METeorological Information) advises the pilot of weather that may be hazardous to single
engine, other light aircraft, and Visual Flight Rule (VFR) pilots. This advisory affects an area of a least 3,000
square miles at any one time and provides data about ceiling, obscuration, and turbulence issued by the
National Weather Service (NWS). The update rate is every 12 minutes.
XM FIS AIRMET and SIGMET Legend
When enabled, the following AIRMETs are available for display:
• Icing
• Turbulence
• IFR conditions
• Mountain obscuration
• Surface winds
Refer to the Legend for a description of the color coding.
1. Press the  or  arrow keys to display the legends for the selected services.
2. Press Done to turn the Legends off.
Freezing Levels
This product is not available at this time.
County
The County selection provides specific public awareness and protection weather warnings for Hurricanes, Tornados, Severe Thunderstorms, Floods, Flash Floods, and special Maritime conditions provided by the National
Weather Service (NWS).
Refer to the Legend for a description of the color coding.
XM FIS County Warnings Legend
78
1. Press the  or  arrow keys to display the legends for the selected services.
2. Press Done to turn the Legends off.
Detailed Operation
Cyclone
GDL 69/69A - FIS
This product is not available at this time.
Label
Press MENU/ENTER key and then press the LABEL Menu Item key to toggle the station labels on and off.
Flight Plan
Press MENU/ENTER key and then press the FLIGHT PLAN Menu Item key to toggle the Flight Plan course
line on and off. The magenta line is the active leg.
Legend
Press MENU/ENTER key and then press the LEGEND Menu Item key to display the legends describing the
graphic display colors. Press the  or  arrow keys to display the legends for the selected services. Press
Done to turn the Legends off. A graphic of each product legend is shown on page 75.
XM FIS Forecast Menu Item Page 3
Map Detail
Press MENU/ENTER key and then press the Map Detail Menu Item key to choose between the display of No
Overlays, the Base Map, or Map and Nav Aids.
Map Orientation
Press MENU/ENTER key and then press the Map Orientation Menu Item key to choose the configuration of
the map orientation of DTK Up, North Up, TRK Up, TRK Up Arc, or TRK Up 360.
79
Detailed Operation
GDL 69/69A - FIS
Text
The Text sub-function displays text messages of the available weather information. Use the function smart keys
at the bottom of the display to select the message that you would like to view from the list in the FIS Category
window. The text message for the selected item is displayed in the FIS Message window at the top portion of
the display.
1. Press the FN key and then the FIS function key when displayed.
2. Press the fourth function smart key on the right to select the Text (Text) sub-function.
3. The Menu/Enter key brings up menu items for more detail on each sub-function.
Selecting Categories and Messages
XM FIS Text Messages
1. Press the  or  function smart keys to move up or down the FIS category list. The selected category
is highlighted.
2. Press the  arrow key to move the items in the list for that category.
3. While in the list for a category, press the  or  function smart keys to highlight a particular message
for the selected category. The text for the selected message is shown in the FIS Message window in the
upper portion of the screen.
4. Press the  arrow key again to return to the category list.
View
Some text products may provide more information than can be shown in the message window when the
category window is also shown. You can customize the Text display to show both the FIS Category and FIS
Message windows at the same time or to view the FIS Messages only.
Moving to another FIS category
80
1. Press Menu/Enter.
2. Press the View menu item to toggle between the choices.
Detailed Operation
Sorting TAFs and METARs
GDL 69/69A - FIS
Displayed text products can be sorted by distance from your present position (Nearest Pos), distance from
destination (Nearest Dest), or alphabetically (Alpha).
1. Press Menu/Enter.
2. Press the top menu item to toggle between the choices.
Temporary Flight Restrictions (TFRs)
The full page view of the TFR is available when TFR Text is selected. TFR information includes: type,
minimum and maximum altitude, and Notam ID. If TFR text extends beyond the page size, no scrolling is
available.
1. Press the FN key and then the FIS function key when displayed.
2. Press the fourth function smart key on the right to select the Text (Text) sub-function.
3. The Menu/Enter key brings up the menu items. Press View, if necessary, to display the FIS Category
window.
4. Press the  or  function smart keys to move up or down the FIS category list to highlight TFR.
5. Press the  arrow key to move the items in the list for the TFR category.
6. While in the list for the TFR category, press the  or  function smart keys to highlight a particular
message for the selected category. The text for the selected message is shown in the FIS Message
window in the upper portion of the screen.
Sorting TAF and METAR Text (Nearest Position Shown)
Status
The Status sub-function displays information about the available XM products, receiver performance, and
subscription level.
1. Press the FN key and then press the FIS function key when displayed.
2. Press the fourth function smart key on the right to select the Status (Status) sub-function.
3. The Menu/Enter key brings up the menu item.
4. Press the top menu item smart key on the right to step through the pages for Product Status,
Diagnostics, and Activation.
Viewing TFR Text
81
Detailed Operation
GDL 69/69A - FIS
Product Status
The Product Status page displays a list of all products supported by the MX20. The status is shown as available
or not available. Available means the product is a part of your chosen subscription level and the MX20 has
data that can be displayed. A time stamp will indicate the last received product time, which is the time the
product was generated for transmission. Not Available means the product is not included in your chosen
subscription level or that data has not been received since the last power cycle of the MX20.
Diagnostics
The Diagnostics page shows error status codes generated by the XM radio receivers. One receiver is for weather
data and the other receiver is for audio entertainment. Signal strength is shown as one of four levels. The GDL
69/69A software version is shown in the lower left section of the display.
XM FIS Product Status
1. While in the Status page, press Menu/Enter.
2. Press the Products menu item key to toggle to the Diagnostics display. The Diagnostics page
information is displayed.
3. Press the Start Diag menu item key to activate GDL 69/69A diagnostics.
Note: After diagnostics have been run, power to the GDL 69/69A must be recycled to return to
proper operation, for GDL 69/69A software versions prior to version 2.13.
Activation
The Activation page shows the radio identification numbers for one or both receivers. These numbers are
needed to start a subscription. The Service Class is the name of the data subscription level. The Weather Products section shows the products contained in the selected subscription level.
XM FIS Diagnostics
82
1. Press the FN key and then the FIS function key when displayed.
2. Press the fourth function smart key on the right to select the Status (Status) sub-function.
3. Press Menu/Enter to display the Products menu item.
4. Press the Products menu item smart key to toggle to the Diagnostics display. The Diagnostics page
information is displayed, including Radio IDs, Service Class, and Weather Products.
5. Follow the XM Satellite Radio Activation procedure and press Accept at the appropriate time.
Detailed Operation
Activating XM Radio Services
GDL 69/69A - FIS
Before the GDL 69/69A can be used, the unit must be activated by XM Satellite Radio and services are subscribed to 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.
Gather Information
Your GDL 69 or GDL 69A is shipped with one or two radio hardware identifications, respectively. These IDs
serve as identification codes for your XM-equipped GDL 69/69A and are needed in the activation process. The
ID(s) is attached to this instruction sheet and printed on a label on the back of the unit. The IDs can also be
retrieved through the MX20 in the Activation page of the Status sub-function. Contact your dealer if you are
unable to locate the radio hardware IDs.
XM Satellite Radio Activation
XM FIS Data Activation
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 contacting 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 Activation Instructions (190-00355-04) enclosed with your GDL
69/69A unit to activate the XM products.
83
Detailed Operation
Lightning
Lightning Strikes (LT) Function
The Lightning Strike mode allows you to view lightning strikes that are reported by an L3 WX500 Stormscope
Weather Mapping Sensor. The “T” marks are used as reference marks to aid in locating strikes in reference to
your position. The Lightning function is not available in all software versions. Your display range must be selected to be greater than 25 nm to display lightning strikes. The display range is shown in the lower left corner
of the display. For instance, if you zoom In to a range of 20 nm, no strikes will be shown, but if you zoom Out
to 30 nm strikes will be shown. Review the Limitations section in the front of this guide for the limitations that
apply to the Lightning data.
The In and Out keys control the map scale (zoom in or out). The Clear key clears the current lightning
strikes, which will be refreshed on the next update cycle.
Lightning Menu Option Page 1
The first option page of the Lightning function lets you select options for the choices of Flight Plan, Display
view, Lightning groups, Heading Stabilization, and Stormscope (System Data) info. The last option selection
(Next Page) takes you to the next page of options.
Flight Plan
The Flight Plan option controls the display of the Flight Plan course line. Pressing the MENU ITEM key next
to the Flight Plan option toggles between showing and not showing the Flight Plan route line.
360/120
Lightning Function Menu Items (Page 1)
Two display views of the lightning information may be selected. The 360 view shows a 360° view the airspace
surrounding your aircraft. The 120 view shows a 120° forward view from your aircraft’s position and the
display is divided into three segments.
Lightning
The WX500 detects electrical discharges within a range determined by the installation of your Stormscope.
These discharge locations are noted as Lightning strikes and displayed as a red “x.” You may select either single
Strike or Cell (groups) of lightning representations.
84
Detailed Operation
Strike
Lightning
Individual strikes are noted.
Cell
Only lightning strikes associated with a group, or cell, of strikes are displayed.
Heading Stabilization
The Heading Stabilization function of the WX500 can be turned on or off with this selection.
System Data
Select the System Data option to display information about the WX500.
Press the Next Page MENU ITEM key to display the next page of menu items.
Lightning Menu Option Page 2
The second option page of the Lightning function lets you select options for the choices of Demo, Self-Test for
the Stormscope, Noise Monitor, and Strike Test. The last option selection takes you back to the first page of
options.
Demo
The Demo option places the WX500 sensor in a demonstration mode that simulates lightning strikes.
Self-Test
The Self-Test option performs a number of tests on the operation of the WX500 and provides a report of its
status.
Lightning Function Menu Items (Page 2)
85
Detailed Operation
Lightning
Noise Monitor
The Noise Monitor feature is a function of the WX500. For details about using this feature refer to the WX500
owner’s documents.
The Noise Monitor displays reports of electrical noise, whether they are from lightning or other noise sources
within the range of the system. This function is used to help determine if electrical noise is present that may
affect normal system operation.
Strike Test
The Strike Test feature is a function of the WX500. For details about using this feature refer to the WX500
owner’s documents.
The Strike Test feature is used by installers to verify proper operation of the WX500. Test strikes are sent to the
antenna. The received test strike is then visually presented on the screen.
Antenna Change Message
When an “Antenna Change” message is shown, the lightning sensor may have failed. When this message is
displayed, the sensor is automatically shut down for the remainder of the flight. The installation should be
inspected before the lightning function is used again.
86
Detailed Operation
Chart View (CHART) Function (Optional)
Chart View
The optional MX20 Chart View feature provides the capability to view Jeppesen Sanderson Inc. electronic
charts. Two basic types of charts can be viewed: Approach charts and airport surface charts.
Approach charts can be manually loaded and overlaid on the moving map during flight, while airport surface
charts are automatically overlaid while on the ground. Both types of charts are also viewable from the Chart
View Function in a chart manual fashion. Approach charts may also be loaded automatically when installed
with a GNS 480-series GPS receiver.
The electronic chart data is generated from the standard Jeppesen CD ROM product, which is distributed and
updated by Jeppesen on a two-week schedule. The in-flight data resides on the pilot removable front-loading
data card and is updated by the pilot using a home PC-based data loader.
Overview
ChartView as viewed on the Custom Map Page
• Charts are viewed either as a dynamic overlay on the Custom/IFR Map, or as a static page through the
dedicated Chart View Function (“Chart” on the function menu).
• When viewed as a dynamic overlay on the Custom/IFR Map, the chart will be properly geo-referenced
with respect to the base map. Orientation (track up, north up, etc.), zoom scale, and aircraft position
will all be properly presented relative to the chart data, using the standard map controls.
• When viewed under the Chart View Function, more selection options are available for locating a specific
chart among the charts in the database, and the chart is displayed similar to a standard chart manual
(north up) with no position overlay.
• A given approach chart must be “loaded” for map overlay usage by first selecting the airport of interest,
then selecting the individual chart for that airport. Approach charts can be loaded from either the
Custom/IFR Map, the Chart View Function, or the Autoload function from a GNS 480-series GPS
receiver.
• Pressing the INFO key while a chart is loaded or being viewed will bring up the header, profile and
minimums associated with the chart.
87
Detailed Operation
Chart View
Chart Data Source
The same set of charts that are available in electronic form from the Jeppesen JeppView™ product are available
for loading onto the MX20 platform. These consist of approaches, SIDS, STARS, airspace charts, and airport
surface diagrams. The MX20 can display all of these charts from the Chart View Function, or a more limited
sub-set as dynamic overlays on the “Custom Map” when the corresponding chart has been “Geo-Referenced”
by Jeppesen.
Data Card
As there are more charts available from Jeppesen than will fit on the physical data card, predetermined coverage areas are loaded instead of the entire contents of the Jeppesen CD ROM. This process is performed using
the data loader software tool provided by Jeppesen. The MX20 Chart View data card can hold approximately
10,000 charts at a given time.
Chart Geo-Referencing
For the ownship position to be overlaid on the chart (as viewed from the Custom/IFR Map), the chart must
be available in a “Geo-Referenced” version, as supplied by Jeppesen. “Geo-Referenced” is the term used to
indicate charts whose features have associated latitudes and longitudes, allowing them to be drawn over other
geographical data, such as maps. Currently not all charts and airport surface charts are geo-referenced.
When a chart is viewed and a red “X” is present on the earth symbol (to the left of the chart name), the chart is
NOT geo-referenced and thus cannot be “loaded.”
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Detailed Operation
Chart Overlay in the Custom/IFR Map
Chart View
On the Custom Map or the IFR En Route Map, approach charts (not airport surface charts) must be manually
“loaded” as there are multiple approach charts that can apply for a given region (i.e. multiple approach charts
for the same airport). An approach chart will be displayed as an overlay when the following conditions are met:
• The approach chart is within the database residing on the card
• The approach chart is geo-referenced by Jeppesen
• The approach chart has been loaded
• The aircraft position is within the coverage of the approach chart
• The aircraft speed is above the air/ground threshold (aircraft is in flight)
Load a specific approach chart for use as an overlay by first selecting the airport and then selecting the approach
chart.
Selecting the Airport
Chart View Function Menu Items
Pressing the LOAD CHART key on the Custom or IFR Map menu will present a list of airports that have
geo-referenced approach charts available. The first airport within the list is the final destination waypoint as
selected on the external GPS navigator, with additional airports listed based on a nearest to present position
search. Airports and approach charts that are not geo-referenced will not be shown for selection on this menu.
NOTE: Prior to loading an approach chart, there is an operational benefit to selecting the
desired airport on the GPS navigator as the final destination waypoint. The MX20 can then
detect this and will place the corresponding airport at the top of the airport list menu for
convenience.
The remaining number of airports within the list will vary depending on the complexity of the database within
the current region and the number of geo-referenced approach charts associated with the airports in the area.
The MX20 performs a complex filtering process that eliminates airports and associated approach charts that
are not geo-referenced, based on present position. This task is time limited to three seconds, meaning that if
extensive filtering is required, the nearest based list may be shorter in some circumstances than in others.
89
Detailed Operation
Chart View
Loading the Approach Chart
Once the airport is selected, the individual approach chart to be overlaid can be loaded from a list of geo-referenced approach charts available for that airport. Not all approach charts can be overlaid in this fashion and
only geo-referenced charts will be presented for selection from the Custom Map. Because of this, it is possible
that approach charts that are viewable under the Chart View Function may not be presented in this list.
NOTE: The pilot must be aware that not all charts in the loaded database can be used as an
overlay.
Selecting an Airport in the IFR Function
Once the approach chart is loaded, a green Annunciator will illuminate at the top of the screen indicating the
airport name and specific chart that has been loaded.
Overlay Chart Loading Example
Selecting an Approach Chart in the IFR Function
1. Press FN and then MAP or IFR.
2. Press MENU and then the LOAD CHART Menu Item key.
3. Highlight the desired airport with the arrow “smart” keys and then press the SELECT “smart” key.
4. Highlight the desired approach with the arrow “smart” keys and then press the LOAD “smart” key.
5. Adjust the zoom level using the IN or OUT “smart” keys.
Viewing the Chart as an Overlay
Display of Coverage Area
Once the desired approach chart has been loaded, a green Annunciator bar with the approach name is illuminated at the top of the Custom and IFR maps. If the aircraft is outside the coverage area of the approach chart,
a black rectangular box will be presented that shows the coverage of the chart itself.
Selecting an Approach Chart in the IFR Function
90
Once the aircraft has entered the coverage area, the chart contents will be displayed on the screen. Note that
a loaded approach chart is only viewable from the maps when the aircraft is in flight, otherwise, the airport
surface chart has priority and the approach chart must be viewed from the Chart View function.
Detailed Operation
Chart Zooming
Chart View
Auto zoom mode is supported from the Custom Map and is recommended to reduce the workload associated
with maintaining an appropriate zoom level. In auto zoom mode (entered by zooming all the way down or all
of the way up), the zoom scale will be calculated to maintain the current destination waypoint of your GPS
receiver on the screen at all times. The displayed zoom scale can be determined from the range rings on the arc
and 360 displays, or from the distance to the displayed destination waypoint.
When an approach chart is loaded and being displayed, the auto zoom mode will limit the low-end zoom
level to 5 nm as the current waypoint is being approached. This prevents the display from zooming into a level
where the overall situational awareness relative to the approach as a whole is lost. This can be over-ridden by
taking the unit out of auto zoom mode. This limit does not apply when the auto-zoom mode is tied to the GNS
480-series GPS receiver.
Chart Panning
Panning on the loaded chart is currently not supported. Entering the panning mode will disable the display of
the chart and allow the underlying map layers to be presented.
Chart Orientation
When the chart overlay is presented, the orientation is identical to the currently selected orientation of the
map itself (North up, track up or desired track up) with the ownship position correctly geo-referenced and
presented on the chart. Note that rotation of the text on the charts themselves is not supported, meaning that
text may not be oriented horizontally when displayed in track-up fashion.
Chart Info
Pressing the INFO key when a chart is loaded will change the smart key labels to Header, Profile, Mins, and
Info. Pressing the corresponding keys will allow the different parts of the chart to be presented along the
bottom of the screen. Pressing the INFO key will disable this mode and return the menu to the normal map
controls.
Selecting INFO for a Chart in the IFR Function
91
Detailed Operation
Chart View
Chart View Function
The Chart View Function is accessed by pressing the FN Function key and selecting the Chart View (CHART)
function.
The Chart View Function incorporates five menu items that control two basic operations:
• Selecting a chart
• Loading a chart
(for static viewing)
(for map overlay)
The term “Selecting a chart” is used to designate that a given chart is selected for static viewing on the screen.
This is typically done by first specifying the airport, then the specific chart for that airport.
The term “Loading a chart” is used to designate that a given chart is loaded for flight operations and can be
used as an actual overlay on the maps. Loading a chart through the Chart View Function is identical to loading
a chart from the Custom/IFR map as described in previous sections.
All charts within the database, geo-referenced or not, can be statically viewed from the Chart View Function.
Only geo-referenced charts can be loaded for map overlay purposes.
The Chart View Function will retain the last view set and will not change the chart, zoom level, or pan setting
when the function is exited and re-entered, allowing it to operate similar to a physical chart manual. An exception to this is when a chart is loaded in the Custom or IFR Map functions. When this is done, the loaded chart
is set as the currently selected chart in the Chart View function.
Chart View Example:
1. Press FN and then CHART.
2. Depending on Chart status last used:
a. Press MENU and then the SELECT AIRPORT Menu Item key;
or
b. Highlight the desired airport with the arrow “smart” keys and then press the SELECT “smart” key.
3. Highlight the desired chart with the arrow “smart” keys and then press the LOAD or VIEW “smart”
key.
92
Detailed Operation
4. View the chart. Adjust the zoom level using the IN or OUT “smart” keys. Press the PAN “smart” key
and use the movement Menu Item keys on the right side of the display. Use the INFO “smart” key to
step through the different details of the chart.
Chart View
Menu Items
Search ID
The Search ID menu option within the Chart View Function allow you to search for a specific airport identifier. As this operation requires multiple key-strokes to look up a specific chart, it is not recommended as the
primary mechanism for accessing the charts, but does allow for flexibility. When an airport is located, it will be
set as the currently selected airport. Airport identifiers can be entered with or without the “K” prefix.
Select Airport
Searching for an Airport by Ident in Chart Function
The Select Airport operation allows the airport of interest to be selected from a pop-up list. The airports presented in the list are determined based on the final destination waypoint as the first entry, and a nearest type
search for the remaining entries. This method allows the airport to be quickly located based on the current
flight plan on the external GPS navigator.
Once the airport is located, the Select Chart menu is presented (see below), allowing a specific chart for that
airport to be either loaded or simply viewed.
Selecting an Airport from a list in the Chart Function
Select Chart
The Select Chart operation allows the list of charts for the currently selected airport to be listed in a pop-up
list. Within this list, a circular earth symbol indicates that the chart is geo-referenced and therefore can be
loaded for use as an overlay on the maps. If a red “X” is presented through the earth symbol, then that specific
chart is not geo-referenced and can be viewed, but not loaded as a map overlay.
Select Loaded
Selecting a Chart from a list in the Chart Function
The Select Loaded operation allows the currently loaded chart to be selected for viewing. This is typically
done if a given chart was LOADED from the Custom/IFR Map, and viewing it from the Chart View Function is
desired. Note that loading a chart from the Custom/IFR Map will also load and select the chart for viewing.
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Detailed Operation
Chart View
Load Current
The Load Current operation allows the current (viewed) approach chart to be set as the loaded approach
chart. When this operation is performed, any previously loaded chart is replaced with the chart that is currently being viewed.
Airport Surface Charts
Airport surface charts provide a graphical presentation of the airport surface area (runways, taxiways, buildings, towers and other objects), within the immediate airport vicinity.
Load the Current Chart for Viewing
From either the Custom Map or the IFR en route Map, airport surface charts will automatically be loaded and
displayed as an overlay if the following conditions are met:
• The airport surface chart is within the loaded database
• The airport surface chart is geo-referenced by Jeppesen
• Airport Chart menu layer is turned on
• The aircraft position is within the coverage of the chart
• A loaded chart is not being “flown”
In typical operation, the above conditions are met when the unit is turned on, meaning that the airport surface
map is displayed as soon as GPS position is acquired. Note that the Zoom Scale Auto-Transition feature determines the initial zoom scale that is set when the aircraft is on the ground, which is important when working
with surface charts.
Viewing Surface Charts
Selecting a Surface Chart
94
The airport surface charts are treated similarly to approach type charts in that they can be viewed through
both the Chart View Function and on the Custom Map/IFR Map as an overlay. However, as there is only one
unique surface chart for a given airport, it does not need to be manually loaded for display. The nearest available airport surface chart will always be used. When viewed from the Chart View Function, the airport surface
chart shows up as the first available chart for the selected airport of interest. Thus, after selecting the airport
of interest, the list of charts will have an “Airport” entry as the first item in the list. As with standard approach
Detailed Operation
charts, when viewed from the Chart View Function, the aircraft’s ownship position is not shown on the airport
surface chart.
Chart View
If an approach chart is currently loaded and being displayed (aircraft is in the air), it will take priority over
displaying the airport surface chart. Once the aircraft touches down and the speed drops below the air/ground
threshold, it is assumed that a missed approach procedure is not needed. At this point, the approach chart is
unloaded and the airport surface chart is displayed. While on the ground, airport surface charts will take priority over any loaded approach chart.
Operational Considerations
When to Load a Chart
An approach chart can be loaded at any point during the flight, including on the ground before takeoff. Note
that the approach will not be shown on the map itself until the aircraft’s speed is above the air/ground speed
threshold. The approach will be automatically unloaded when the aircraft’s speed goes below the air/ground
speed threshold.
Viewing Surface Chart Detail
Flying an Approach
It is important to recognize that the charts function is not intended to provide guidance information for flying
an approach. Its intended function is to provide basic situational awareness as to your current position relative
to the approach as a whole. Standard IFR-approved instruments MUST be used to actually provide the navigational information required under IFR conditions.
Approach to Surface Map Transitions
Logic is incorporated that will automatically transition the display from an in-flight approach chart display to a
zoomed in view of the airport surface chart upon landing. The intent is to provide a hands-free transition from
the approach phase of flight to the airport surface navigation phase without having to manually un-load the
approach and adjust the zoom scale.
The transition logic is based solely on aircraft ground speed.
95
Detailed Operation
Chart View
When an approach chart is loaded and being flown, and the aircraft ground speed drops below the air/ground
threshold (set from within the SYS Function), it is assumed that a landing has been performed. At this point,
the loaded approach chart is automatically unloaded and the airport surface chart will be presented on the
screen showing runways, taxiways, etc.
However, if approach chart is loaded and being flown and the aircraft crosses the missed approach point without slowing, it is assumed that a missed approach procedure is being performed. In this case, the automatic
transition to surface maps does not occur and the approach is not automatically un-loaded. See the Initial
Zoom and Transition Speed selection in the System Function.
Chart NOTAMS
Any applicable NOTAMS that apply for a given chart are shown under the INFO key when that chart is
selected. The chart should be viewed for NOTAMS before use.
Important System Limitations
Note that while on the ground and viewing airport surface charts, the display can be oriented in the “Track Up”
mode. In this mode, the last known GPS-based track as obtained from the external GPS navigation system is
used to orient the map. GPS track is typically not accurate at low speeds and does not reflect the actual heading of the aircraft at all times.
Invert Option
As with the basic maps, the chart image can be inverted using the standard invert key.
96
Detailed Operation
Chart View
Typical Operational Scenario
The following scenarios makes the assumption that:
• The appropriate charts are available and geo-referenced
• The default ground zoom level is set to 0.5 nm
• The default air zoom level is set to “AUTO”
Typical Taxi Scenario
On power up and GPS position acquisition, the Custom Map Function will show the aircraft on the surface chart at a zoom level of 0.5 nm. The aircraft will be shown
relative to taxiways and runways throughout the taxi procedure.
Typical Takeoff Scenario
On takeoff roll, when the aircraft reaches the air/ground speed threshold, the display will automatically transition to the en route zoom mode of “AUTO” and adjust
the display to show the current destination waypoint.
Typical Approach Scenario
Setting the destination waypoint to the destination airport on the GPS navigation system and pressing LOAD CHART from the Custom/IFR Map will present the
destination airport in the selection list. Selecting this airport will then bring up the approach charts that are available for that airport, which can then be loaded by
pressing the LOAD “smart” key.
Typical Landing Scenario
With an approach chart being “flown,” upon touchdown and rollout, the chart will be unloaded and the map will automatically switch to the airport surface chart
with the zoom level set to 0.5 nm.
Autoloading
The GNS 480-series GPS navigator can request the MX20 to load a chart so you only need to select a chart on one device. In most cases, the MX20 will have the same
chart in its database and will display the selected chart.
On occasion, the MX20 may not be able to find the selected chart. When this happens, the following will be displayed in the MSG function: “Autoload chart not
found. Load manually.” The MX20 may also find multiple charts. When this happens, the following will be displayed in the MSG function: “Multiple Autoload charts
found. Load chart manually.” The desired chart can be loaded using the steps starting on page 92.
97
Detailed Operation
Radar
Radar (RADAR) Function
The MX20 I/O Radar product supports an interface for the Garmin GWX 68, Allied Signal/Bendix-King
ART2000/2100, and RS-181A weather radars. The GWX 68 must be installed via a separate installation
approval. The GWX 68, RS-181A, and ART2000 weather radars are seamlessly integrated with the other
functionality of the MX20 with a “RADAR” option available from the main function menu. Note that auto-tilt
is not supported for the ART2000/2100. The ART2100 must be configured to emulate the ART2000. As a
result, only the ART2000 functions are available with the ART2100.
The MX20 operates as both a display and radar control head, allowing direct replacement of older display systems. The modes and features supported by the MX20 for each of the radar heads are detailed in the following
table. Review the Limitations section in the front of this guide for the limitations that apply to the radar data.
Function
98
GWX 68
ART2000/2100
RS-181A
Ground Map



Weather



Horizontal Display



Vertical Display


Hold Mode



Tilt Control



Bearing Control


Range Control




Gain Control


Bearing Cursor


Tilt Cursor



Stabilization



Sector/Scan

Detailed Operation
On initial power-up and entry to the Radar Function, the radar unit may go to the Off mode. Selections can be
made to command the unit into one of the following initial modes:
Radar
• STBY
• ON
• TEST
• OFF
Once activated, the different operating modes of the radar are selected by pushing the corresponding Menu
Item keys. Descriptions of the different modes are as follows, with the currently selected mode being highlighted in green:
Off Mode
On MX20 power-up, the radar antenna is placed in the OFF mode. In this mode, the radar antenna head is not
energized and is not transmitting.
Standby/On Mode
In the standby mode, the radar head is powered up, but is not transmitting. Placing the unit into standby
mode initiates the warm-up sequence that is required by the transmitter within the radar head assembly. Pressing the STBY/ON key while in Standby mode turns on the radar in the Weather Mode. While in the ON mode
in both Map and Weather modes, the green RDR annunciator is on solid indicating that the radar is energized
and transmitting.
Test Mode
Pressing the TEST key while in the Standby mode places the radar in the Test mode. The radar then sends a
test pattern that is displayed on the MX20 I/O.
Weather Mode
In the weather (WX) mode, the antenna is transmitting and painting reflected returns on the screen. This mode
is intended for painting airborne weather and is the normal operating mode for the unit. Radar returns are
painted in the following colors:
99
Detailed Operation
Radar
• Black
• Green
• Yellow
• Red
• Magenta
Black is the weakest return while Magenta shows where the strongest returns were obtained. While in the
weather mode (GWX 68 only), the gain can be adjusted with the Gain - and Gain + keys.
MAP Mode
The Map (MAP) mode is used for obtaining returns from the ground. Map mode is available for the GWX 68,
ART2000/2100, and RS-181A. In this mode, the return data is rendered in the following colors:
GWX 68
ART2000/ART2100/RS-181A
• Black
• Black
• Cyan
• Cyan
• Yellow
• Green
• Magenta
• Yellow
• Blue
• Magenta
While in the Map mode, the gain can be adjusted with the Gain - and Gain + keys (see below).
Horizontal Mode
The Horizontal Mode (HORIZ) commands the radar head to scan in the horizontal plane at a pilot selectable
tilt angle. In this mode, the current Tilt angle is shown on the lower half of the display in green.
Vertical Mode (GWX 68 and ART2000/2100 only)
The Vertical Mode (VERT) commands the radar head to scan in the vertical plane at a pilot selectable bearing
off of the nose of the aircraft. In this mode, the current Bearing angle is shown on the lower half of the display
in green.
Radar Horizontal View
100
Detailed Operation
Radar
Range Control
The range can be adjusted using the RNG  and RNG  keys. Values for the radar are shown in the table below.
Unit
Range (nm)
GWX 68
ART2000/2100
2.5 - 320
10 - 240
RS-181A
10 - 240
Tilt Control
The Tilt (TILT) control is used to adjust the current tilt angle of the radar head when horizontal sweeping is
being performed.
While in the Horizontal mode, the tilt is adjusted using the TILT  and TILT  keys. Values for the radar are
shown in the table below.
Unit
Tilt (°)
GWX 68
-15° - +15°
ART2000/2100
-15° - +15°
RS-181A
Radar Vertical View
-15° - +15°
Bearing Control (GWX 68 and ART2000/2100 only)
The Bearing (BRG) control is used to adjust the current bearing angle of the radar head when vertical sweeping
is being performed. While in the Vertical mode, the bearing is adjusted using the BRG  and BRG  keys.
Values shown in the table below are in degrees from straight ahead.
Unit
Bearing (°)
GWX 68
45L - 45R
ART2000/2100
45L - 45R
RS-181A
NA
Radar Tilt Control
Gain Control
Available in MAP mode with the GWX 68, ART2000, and RS-181A; and also in WX mode with the GWX 68. In
the GWX 68, the gain settings are set separately for the Map and WX modes. The gain is used to adjust the sensitivity of the radar receiver. It can be used in map mode to adjust the characteristics of the returns from the surface.
While in the Ground mode, the gain is adjusted using the GAIN + and GAIN - keys. Pressing a Gain adjust-
Radar Range and Bearing Control
101
Detailed Operation
Radar
ment key will show a Gain bar graph. The white reference line on the right side of the bar graph is only present
in the GWX 68. Values are shown in decibels in the table below.
GWX 68
Automatic Radar Gain Control (GWX 68)
Gain (dB)
-28 - +3.5
(Weather and Map modes)
ART2000/2100
-31.5 - 0
(Map mode only)
RS-181A
-31.5 - 0
(Map mode only)
Hold Control
The Hold mode is used to freeze the display. While in the hold mode, the green RDR indicator flashes indicating that the display is not being updated, but the radar is continuing to transmit.
Manual Radar Gain Control (GWX 68)
Cursor Pre-Select Operation (GWX 68 and ART2000/2100 only)
Cursor pre-select option can be used to pre-select a Bearing Line or Antenna Tilt angle prior to switching the
vertical or horizontal scan mode of the display. The cursor is a cyan line extending along the Radar’s projected
path and can be displayed in both the horizontal and vertical modes.
Manual Radar Gain Control
(ART2000/2100 or RS-181A)
For example, if horizontal scanning is occurring, a cursor line can be activated to pre-select a specific bearing
to a weather cell of interest. Once selected, changing the scan mode to vertical will automatically set the bearing of the vertical sweeps to the bearing previously indicated by the cursor line.
Conversely, if vertical scanning is occurring, a cursor line can be activated to pre-select a specific tilt to a
weather cell of interest. Once selected, changing the scan mode to horizontal will automatically set the tilt
angle of the horizontal sweeps to the tilt angle previously indicated by the cursor line.
The Bearing Cursor is activated any time the Tilt/Bearing control is changed from its default position. When
in Horizontal scanning, setting the Bearing will cause the radar to scan at that bearing when it is switched to
Vertical scanning. When in Vertical scanning, setting the Tilt will cause the radar to scan at that tilt when it is
switched to Horizontal scanning.
Sector Scan (GWX 68 only)
Sector scanning is only available in the GWX 68. Pressing the SCTR/SCAN key toggles between Sector Scan
(SCTR) and Normal Scan (SCAN). Selecting Sector Scan reduces the scan angle to ±10° in horizontal scanning
102
Detailed Operation
and ±5° in vertical scanning. The Sector Scan can be moved horizontally by changing the Bearing and vertically
by changing the Tilt.
Radar
Radar Return Signals
Interpreting radar return signals is beyond the scope of this manual. Please refer to the radar user’s guide for
details on interpreting radar data.
Radar Setup Page
Pressing the MENU key while in the Radar Function will display the Setup page. The currently selected mode
is displayed at the top of the radar screen during normal operations.
Stabilization (STAB)
Pressing the MENU and then the STAB keys while in the Setup Function allows the stabilization to be turned
on or off. When Stabilization is On, a command is sent to the radar head instructing it to use the supplied gyro
commands to compensate the sweep patterns for pitch and roll of the aircraft. When stabilization is activated,
the STAB label will be green. When Stabilization is turned off, the STAB label is white. Additional status information is also shown while the radar menu is active.
Radar Troubleshooting
Fault Message
Description
Action
ELE
Electrical fault with the radar hardware or the aircraft power bus.
Power off the radar. The radar needs
service.
400 Hz
A previously available analog 400
Hz reference signal is no longer detected. Analog altitude information
will not be available.
An external sensor has failed and
needs service.
GYRO
No valid source of attitude information. Antenna stabilization will not
be available.
An external sensor has failed and
needs service.
Radar Setup Page
103
Detailed Operation
Radar
Fault Message
Action
HV
An irregularity with the onboard
high voltage power supply. It may
be hazardous to place the radar in
transmit mode.
Power off the radar. The radar needs
service.
AFC
The Automatic Frequency Control
is unable to lock on to the transmit
frequency. Radar performance will
be impaired and indicated return
intensity is not reliable.
Power off the radar. The radar needs
service.
TEMP
The temperature is too high to
safely activate the radar transmitter.
Power off the radar. Do not use the
radar until its temperature falls and
the fault clears.
XMITTER
A problem is detected in the receiver or transmitter. The unit may
be hazardous to use.
Power off the radar. The radar needs
service.
CALIBRATE
104
Description
A problem has been detected with the Power off the radar. The radar needs
internal factory-calibration settings.
service.
CONFIG
The configuration settings are corrupted or missing.
Power off the radar. The radar needs
service.
EEPROM or RAM
A problem has been detected with
the internal memory.
Turn the power off and then back
on. If the message persists the radar
needs service.
FPGA
A problem has been detected with
the internal FPGA device.
Turn the power off and then back
on. If the message persists the radar
needs service.
Detailed Operation
XM Satellite Radio
XM Satellite Radio
Audio entertainment is available through the XM Satellite Radio Service when activated in the optional installation of the GDL 69A. The MX20 serves as the control head for your remotely mounted GDL 69A. XM Satellite
Radio allows you to enjoy a variety of radio programming over long distances without having to constantly
search for new stations. Based on signal from satellites, coverage far exceeds land-based transmissions. When
enabled, the XM Satellite Radio audio entertainment is accessible by using the XM function smart key.
The information on the XM Satellite Radio display is composed of four areas: the Active channel, available
Channels, Category of the highlighted channel, and the Volume setting. The Active Channel window shows the
Channel Name and Number, artist, Song Title, Category, and provides an indication of signal strength. A bar
graph to the right of the antenna symbol describes the signal strength. Maximum signal strength is shown by
three full bars.
1. Press the FN key and then the XM function key when displayed.
2. The function smart keys at the bottom of the screen let you control the Volume (Vol), Channel (Chan),
Category (Cat), or select the channel directly by entering the number (Direct).
3. The Menu/Enter key brings up menu items for more detail on each sub-function.
XM Radio with Active Channel
Menu Page 1
The first option page of the XM Radio function lets you select the options for viewing the Radio ID, saving a
channel preset, going to the last channel, or selecting preset channels 1 and 2. The last option takes you to the
next pages of options for preset channels 3 through 15.
Radio ID
Each XM radio contains a unique ID that allows XM to communicate over the air with the radio. The owner
must activate XM service by providing the Radio ID to XM to authorize the installed services for that radio.
Activation information is included in a separate information package included with your unit.
1. In the XM radio function, press the Menu/Enter key.
2. Press the Radio ID menu item key on the Main Menu page. If necessary, press the Next Page key to
reach the Main Menu page.
3. Information about the XM weather data services that are authorized for use by the installed radio are
shown.
XM Radio Menu Page 1
105
Detailed Operation
XM Satellite Radio
Save Preset
The Save Preset menu item allows you to store the displayed channel into a selected preset position for easy
later recall.
1. In the XM radio function, press the Menu/Enter key.
2. Press the Save Preset menu item key on the Main Menu page. If necessary, press the Next Page key
to reach the Main Menu page.
3. Press the  or  arrow function smart keys to select the desired preset number.
4. Press the Menu/Enter key to save the channel into the selected preset number.
XM Data and Audio Radio ID shown at top of screen
Last Channel
The Last Channel menu item allows you to return to the last tuned channel if the MX20 has been off and then
turned back on.
1. In the XM radio function, press the Menu/Enter key.
2. Press the Last Channel menu item key on the Main Menu page. If necessary, press the Next Page key
to reach the Main Menu page.
3. The last tuned channel in the XM Radio function will be selected.
106
Detailed Operation
Menu Pages 2-4
XM Satellite Radio
The second, third, and fourth option pages list Presets 3 through 15. The last option of each page takes you to
the next page of options. The last option on Menu page 4 of this function returns you to the Main Menu page.
Volume
The Volume control allows you to set the audio volume level, as well as mute the audio.
1. In the XM radio function, press the Vol function key on the bottom of the display.
2. Press the + or - menu item smart keys to increase or decrease the audio volume.
Mute
1. In the XM radio function, press the Vol function smart key on the bottom of the display.
2. Press the Mute menu item key to mute or un-mute the audio.
Saving XM Audio Radio Channel Presets
Note that the volume is muted when the GDL 69A is turned on.
Channels
The Channel feature is used to navigate through the channels in the selected category.
1. In the XM radio function, press the Chan function smart key on the bottom of the display.
2. Press the  or  menu item keys to up or down through the available channels.
4. Press the Menu/Enter key to select the highlighted channel for listening.
107
Detailed Operation
XM Satellite Radio
Categories
Categories of channels, such as Jazz, Rock, or News, can be selected to list the available channels for a type of
music or other contents.
1. In the XM radio function, press the Cat function smart key on the bottom of the display.
2. Press the Up or Down arrow menu item keys to up or down through the available categories. Pressing
the All menu item key will select all categories.
4. Press the Menu/Enter key to select the highlighted category.
5. You can now use the Channel function to select a channel from the category list selected.
Direct Access
XM Audio Radio Menu Items (Page 2)
Channels can be accessed directly by entering the channel number using the smart keys.
1. In XM mode, press the Direct function smart key. The number values will be shown above the function
and to the left of the menu item smart keys.
2. Press the function and menu item keys for the three digit channel number.
3. Press Menu/Enter.
XM Audio Radio Volume Controls
108
XM Audio Radio Channel Selection Controls
Detailed Operation
XM Satellite Radio
XM Advisory Messages
Message
Condition
Description
Check Antenna
Antenna not connected
The XM antenna(s) or antenna cable are disconnected
from the radio.
Updating
Updating encryption code
The encryption code has been changed over the air
by XM and the radio has not received the newest code
information yet from the XM signal.
No Signal
Loss of signal
The radio is not able to receive a strong enough XM
signal to decode it.
Loading
Acquiring channel audio
or information
Either the corresponding audio or text is temporarily
unavailable for a given channel selected because the
radio still has to receive and decode this information.
Off Air
Channel not in service
A valid XM channel number (and its corresponding
service ID) is not broadcasting any programming.
--- or
Channel ---
Channel no longer available
---
Corresponding Artist
Name/Feature or Song/
Program Title are empty
--- or
Channel ---
No channel available for
the chosen category
XM Audio Radio Categories
Direct Access of XM Audio Radio Channels
109
Detailed Operation
XM Satellite Radio
Activating XM Satellite Radio Services
Before audio entertainment can be used, the unit must be activated by XM Satellite Radio and services are subscribed to XM Satellite Radio. Please note that the GDL 69 is a weather data link. The GDL 69A is a weather
data link and audio entertainment receiver.
1. Press the FN key and then the XM function key when displayed.
2. Press Menu/Enter to display the Radio ID menu item.
3. Press the Radio menu item smart key to display the Radio IDs, Service Class, and Weather Products.
4. Follow the XM Satellite Radio Activation procedure and press Accept at the appropriate time.
Gather Information
Your GDL 69 or GDL 69A is shipped with one or two radio hardware identifications, respectively. These IDs
serve as identification codes for your XM-equipped GDL 69/69A and are needed in the activation process. The
ID(s) is attached to this instruction sheet and printed on a label on the back of the unit. The IDs can also be
retrieved through the MX20 in the Radio ID page of the XM Satellite Radio function. Contact your dealer if you
are unable to locate the radio hardware IDs.
Contact XM Satellite Radio
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 contacting 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 Activation Instructions (190-00355-04) enclosed with your GDL
69/69A unit to activate the XM products.
110
Detailed Operation
System (SYS) Function
System
The System function allows you to set general Nav preferences, obtain version information, and perform tests
on the operation of your MX20.
System Nav Pages
Ownship Symbol
The Ownship Symbol option allows you to choose the type of icon that will represent your aircraft on the
display. You can make selections of Single, Twin, Jet, or Helicopter.
Lat/Lon Format
The Lat/Lon format option allows you to select between two choices for the display of Lat/Lon coordinates.
Choose between degrees-minutes-seconds-seconds decimals (DD MM SS.SS) or degrees-minutes-minutes
decimals (DD MM.MM).
System Nav Setup Menu Items (Page 1)
Set Baro Correction Units
Baro-Correction (QNH) can now be entered in Millibars in addition to Hg. This preference is set under the
SYS function.
Set Baro Correction
You may enter the corrected barometric pressure so that the proper pressure altitude will be displayed.
1. Press the MENU ITEM key for Set Baro Correction.
2. The Function “smart” keys at the bottom of the display will have direction arrows above them. Press the
UP/DOWN arrow keys to change the value of the highlighted number. Press the LEFT/RIGHT arrow
keys to move to another number.
3. Press MENU/ENTER to save the changed values and leave the Set Baro Correction option.
111
Detailed Operation
System
Display Latitude/Longitude Lines
Use this option to choose to display or not display Lat/Lon lines on the map displays.
Initial En Route Zoom and Initial Ground Zoom Transition Speed
A zoom scale auto-transition point is supported that helps to reduce the pilot workload by automating the
selection of the zoom scale based on the phase of flight. The two transitions are:
• Ground-to-Air mode
(Takeoff)
• Air-to-Ground mode
(Landing)
When the aircraft transitions from Ground-to-Air, the zoom scale is automatically set to a user selected “en
route” zoom scale. When the aircraft transitions from Air-to-Ground, the zoom scale is automatically set to a
user selected “Ground” zoom scale. The transition point is based on a user selected En Route/Ground Transition Speed and is based on GPS ground speed.
System Nav Setup Menu Items (Page 2)
The Auto-Transition feature allows for optimal close-in viewing while on the ground and optimal long range
viewing while in flight, without the user having to make manual zoom scale adjustments while in the takeoff
and landing phases of flight. The Zoom scale is shown in the lower left corner of the display.
The En Route and Ground zoom scales and the transition point are adjusted under the SYS Function.
“En Route/Ground Transition Speed” – 10-100 kts
“Initial En Route Zoom Scale” – Auto, 0.25 – 250 nm
“Initial Ground Zoom Scale” – 0.25 – 5 nm
The recommended settings for the initial zoom scales are Auto for the en route mode and 0.5 nm for the
ground mode.
1. Press FN until you see the SYS function key.
2. Press the SYS function key.
3. With the “NAV” selection highlighted press MENU/ENTER.
4. Press the NEXT PAGE Menu Item key.
5. Press the Menu Item keys as needed to select the settings. Press MENU/ENTER to save your settings.
112
Detailed Operation
Slave Zoom to GPS Zoom
System
This is only available when installed with a GNS 480-series GPS navigator. When enabled and the MX20 is in
Auto Zoom mode, the MX20 will automatically set the zoom scale to that used on the GNS 480-series navigator.
AutoLoad Electronic Charts
This is only available when installed with an GNS 480-series GPS navigator. This feature must be disabled
when the MX20 is connected to a GPS navigator other than an GNS 480-series navigator. It allows the GNS
480-series equipment to instruct the MX20 to load a selected approach chart.
Display ICAO for US Airports
Press the Menu Item key to toggle on/off the display of ICAOs for US airports. When enabled, the leading “K”
character for United States airports is displayed according to the ICAO format. When disabled, the leading “K”
is not displayed.
Altitude Units
Press the Menu Item key to set the display of altitude in either feet or meters.
System Nav Setup Menu Items (Page 3)
113
Detailed Operation
System
System Info
The System Info page includes information about the software and database versions of the MX20. The data
port status is also displayed. The Data port status description allows you to verify correct system installation
and to monitor the health of each of the devices sending information to the MX20. Use this information when
you contact your dealer or the factory.
GPS and Data Link Status
For GPS/UAT equipped installs, the SYS/INFO page shows additional details for both the internal GPS engine
and the data-link status. When the MX20 is connected to a GDL 90 UAT, only the ADS-B Data Link Status line
is present because there is no differentiation between ADS-B and TIS-B target data.
System Info Page
GPS satellite usage and signal strength are presented in the upper right of the info page in addition to each
satellite’s position in the sky. If no GPS is installed in the MX20, the text “Internal GPS Not Available” will be
shown.
Data-link information is monitored as follows:
114
HB
Heart-Beat from the UAT data-link radio
ADS-B
ADS-B broadcast packets received
FIS TX
Textual weather data packets received
FIS WX
Graphical weather data packets received
Detailed Operation
System Test Page
System
The System Test Page allows you to test the display of the MX20 to ensure proper operation.
Test Pattern 1
The Test Pattern option displays a number of patterns and colors to test the MX20 display. Use this option to
verify proper operation of the display or when contacting Customer Service.
Red, Green, Blue, White Test Pattern
Choosing the Red, Green, Blue, or White options floods the screen with the selected color. Use this option to
verify proper operation of the display or when contacting Garmin Customer Service.
System Test Page Menu Items
System Test Test Pattern Page
115
Appendix
Caring for Your MX20
Caring For Your MX20
Display Care and Cleaning
Your MX20 has a durable display, but reasonable care must be taken to maintain its performance and life. To
remove stains, smudges, fingerprints, and so forth, we recommend these cleaning methods. If the first method
fails to remove the problem, try the next method.
• Wipe with a clean, dry, non-abrasive fabric (for example, cotton or handi-wipes). Do NOT use paper
products, such as paper towels or facial tissues.
• Blow on the area to condense moisture on the display and then wipe the area with the clean fabric.
• Moisten a clean fabric with a small amount of water and wipe the display area.
• Apply a small amount of glass cleaner (without ammonia) to the fabric and wipe the area.
• Apply a small amount of isopropyl alcohol and wipe the area (this is your last resort).
Contacting the Factory
If efforts to resolve the problem fail, contact your dealer or the factory for technical assistance. The Garmin
customer service staff will gladly assist you.
Garmin International, Inc.
Customer Service Department
1200 East 151st Street
Olathe, KS 66062-3426 USA
(913) 397-8200
FAX (913) 397-8282
116
Appendix
Troubleshooting
Troubleshooting
This section contains information to troubleshoot the MX20 when improper operation is observed. The following table lists possible problems you could encounter. Examine the possible causes of the problem and take
the action listed to correct the problem. If you cannot correct the problem, contact your dealer. If your dealer
is unavailable, contact the Garmin factory at the address and phone number listed in the preceding section.
Be sure to have the information from the System Info page and the data card available before you contact your
dealer or the factory.
Problem
Unit does not power on or blank
screen
Possible Cause
Wiring problem
Improper brightness setting
Low temperature
Data card
Unit fails during start up test
Action
Check for proper wiring and connections. Check the fuse/circuit
breaker
Check the display brightness setting
Allow the MX20 to heat up for approx. 60 seconds
Make sure the data card is fully
inserted
Data card
Make sure the data card is fully
inserted
System failure
Contact your dealer or the factory
117
Appendix
Troubleshooting
Problem
POS data flag shows
Possible Cause
Antenna or wiring
Position source wpt
Position source serial data
Interference
Action
Check the antenna and wiring
Ensure that a waypoint is selected
as the current destination and a Nav
flag is not shown
Ensure that the serial data output is
configured properly
Have dealer/installer check for any
interference sources
Have dealer/installer check for
proper MX20 setup
Installation setup
118
RTE (Route) flag
Position source route
Ensure that the external position
source has an active route engaged
ALT (Altitude) flag
Serial altitude source
Ensure the serial altitude encoder is
powered up and working properly
Have dealer/installer check for
proper installation and setup of the
encoder
If altitude data is provided by an
Apollo GX product, ensure that the
GPS position has been acquired and
a waypoint is selected as the current
destination
LT (Lightning) flag
WX500 installation
Have dealer/installer check for
proper installation of the WX500
Appendix
Troubleshooting
Problem
TER (Terrain) flag
Possible Cause
Terrain database
Action
Ensure that the proper database is
used for your location and it passed
the startup test
Have dealer/installer check for
proper altitude input
Altitude source
No traffic display
ADS-B system installation
You must have the ADS-B system
installed
If you do have an ADS-B system,
check the antennas and other components for proper operation
Have dealer/installer check for
proper MX20 setup
“Special Terrain” message
Capstone/General Aviation setup
This is normal for the Capstone
installation
Have dealer/installer check for
proper MX20 setup
TCAD flag
TCAD Installation
Ensure that the TCAD unit is
installed and functional.
SKYW flag
Skywatch Installation
Ensure that the Skywatch unit is
installed and functional.
RDR (Amber) flag
Radar Installation
Ensure that the Radar unit is
installed and functional.
LINK flag
FIS Sensor Installation
Ensure that the FIS unit is installed
and functional.
119
Appendix
Troubleshooting
Problem
Possible Cause
TIS-A Sensor Installation
Ensure that the TIS-A unit is
installed and functional.
ADSB flag
GDL 90 is reporting that its internal
GPS is not reporting a position or
is reporting an invalid position.
Note that ADS-B broadcasts do not
include position reports when this
flag is present.
Ensure the GDL 90 is installed and
functional. Ensure the GDL 90 GPS
antenna has a clear view of the sky
to receive GPS signals.
IDENT (green) flag
This is not a problem. This flag
appears when the GDL 90 is in the
Ident mode.
None required.
See the Installation Manual for additional troubleshooting procedures.
120
Action
XPDR flag
Appendix
Garmin Data Cards
Data Cards
Installing and Removing Data Cards
The MX20 uses an optional Garmin data card to display digital charts and maps on-screen or save user data.
Install the data card in the card slots located on the left side of the unit. Install or remove the data card only
when the unit is off.
To install a data card:
1. Insert the card with the label facing to the left of the unit into the slot.
2. Firmly push the card into the unit. It is not necessary to force the card. The handle is still exposed when
it is properly inserted. DO NOT insert or remove the data card while the unit is powered on.
If you insert a data card and get a “card format not recognized” message, try removing the card and reinserting
it. If the card is still not recognized, contact Garmin Customer Service or your Garmin dealer for assistance.
Data cards are not waterproof, should not be exposed to moisture or excessive static charges, and should be
stored in the case supplied with the card.
To remove a data card:
1. Press in on the data card ejector for easy removal.
2. Pull the card out of the card slot on the bottom of the unit.
Front View of Data Card Slot
121
Appendix
Specifications
Specifications
Physical Specifications
Size:
6.25” W x 5.00” H x 8.0” D
(15.9 x 12.7 x 20.3 cm)
Weight:
3.92 lbs (1.78 kg) unit only
0.73 lbs (0.33 kg) mounting tube
Display: 6” diagonal (15.24 cm)
65,535-color display with backlighting (640 x 480 pixels)
Power
14 VDC
MX20:
MX20 w/Heater
2.0A (3.0A Max)
3.0A (4.0A Max)
MX20 I/O:
2.5A (3.5A Max)
MX20 I/O w/Heater 3.5A (4.5A Max)
28 VDC
MX20:
MX20 w/Heater
1.0A (1.5A Max)
1.5A (2.0A Max)
MX20 I/O:
1.25A (1.75A Max)
MX20 I/O w/Heater 1.75A (2.25A Max)
122
Environmental
Temp. Range:
-4°F to 131°F
(-20°C to 55°C)
operating range
Humidity:
95% at 55°C
Altitude:
35,000 feet (continuous)
Appendix
GDL 69/69A FIS Legends
GDL 69/69A FIS Screens
The following legends describe the graphical information on the GDL 69/69A FIS displays.
AIRMET/SIGMET Legend
NEXRAD Legend
Cloud Tops Legend
City Forecast Legend
METAR Legend
Echo Tops Legend
County Warnings Legend
Freezing Levels Legend
Winds Aloft Legend
123
Appendix
GDL 69/69A FIS Screens
Sample GDL 69/69A FIS Displays
The following displays provide examples of information shown in the GDL 69/69A FIS function.
124
XM FIS METARs
XM FIS with NEXRAD Weather and Legend
XM FIS City Forecast
XM FIS Echo Tops
XM FIS Radar Coverage
XM FIS Winds Aloft
Appendix
Care Information
Cleaning the Unit
Your MX20 has a durable display, but reasonable
care must be taken to maintain its performance and
life. To remove stains, smudges, fingerprints, and
so forth, we recommend these cleaning methods.
If the first method fails to remove the problem, try
the next method.
• Wipe with a clean, dry, non-abrasive fabric
(for example, cotton or handi-wipes). Do
NOT use paper products, such as paper
towels or facial tissues.
• Blow on the area to condense moisture on
the display and then wipe the area with the
clean fabric.
• Moisten a clean fabric with a small amount
of water and wipe the display area.
• Apply a small amount of glass cleaner
(without ammonia) to the fabric and wipe
the area.
• Apply a small amount of isopropyl alcohol
and wipe the area (this is your last resort).
Display Backlight
Care Information
The display backlight is rated by the manufacturer
as having a usable life of 20,000 hours. This life
may be more or less than the rated time depending
on the operating conditions of the MX20. Over
time, the backlight will dim and the display will
not perform as well in direct sunlight conditions.
The user must determine by observation when the
display brightness is not suitable for its intended
use. Contact Garmin AT repair station or factory
authorized repair station when the backlight
requires service.
To resolve problems that cannot be remedied
using this guide, contact Garmin Product Support
in the U.S.A. at 800/800.1020 or Garmin Europe at
44/1794.519944.
125
Appendix
Glossary
Glossary
Accuracy— Estimated position accuracy in feet or meters.
Advisories and Alerts — all alerting on the MX20 is advisory in nature only. Any alerting must be
accompanied by visual acquisition of the traffic or terrain and no aircraft maneuvering is allowed based
upon data presented by the MX20.
Altitude—Height above mean sea level (MSL).
Back Course — Localizer backcourse approach where the signal on the “back” side of the localizer is
used for alignment to the runway opposite of normal localizer alignment. Without compensation the CDI
would reverse sense.
Bearing —The direction from your current location to a destination.
Coasting — With regard to TIS, coasting indicates that a radar sweep was missed and displayed data is
not the latest.
Course —The direction from your starting location to a destination.
Decluttering— Reduction in displayed elements on the moving map at higher zoom scales.
Distance (Destination)— The “great circle” distance from current location to a Go To destination, or
the final waypoint in a route.
Distance (Next) — The “great circle” distance from current location to a Go To destination, or the next
waypoint in a route.
Elevation — The altitude (height) above or below sea level.
Geo-Referenced — a proper relationship is established between displayed information and real-world
coordinates. For instance, the ChartView charts are geo-referenced because they are correctly oriented on
the map display in relationship to actual coordinates.
Ownship — Your aircraft. A variety of symbols are available to represent your aircraft on the display.
126
Appendix
Glossary
Glossary cont’d
Skywatch® — An active surveillance traffic advisory system. Skywatch is a registered trademark of L3
Communications.
Speed —Display rate of travel in miles/kilometers/nautical miles per hour.
Time —The time for the selected time zone.
Track — The direction of movement relative to a ground position. Also referred to as “ground track.”
Waypoint (Destination) — The final waypoint in the route, or the destination waypoint.
Waypoint (Next) — The next waypoint in the route.
127
Appendix
Abbreviations
Abbreviations
The following is a list of abbreviations and
acronyms used on the MX20 and their meanings:
ABV — Above
ADS-B — Automatic Dependent Surveillance
- Broadcast
ALT —
Altitude
ARTCC — Air Route Traffic Control Center
ARWY — Airway
ATC — Air Traffic Control
BARO — Barometric Pressure
BRG — Bearing To
BLW — Below
C—
Degrees Celsius
CCW — Counter-Clockwise
CDI — Course Deviation Indicator
CHART — ChartView
Crnt — Current
CW —
Clockwise
128
dB —
Decibel
dBZ — Decibel of Reflectivity
DIS, DIST — Distance
DTK — Desired Track
GM —
GND —
GPS —
GS —
Greenwich Mean Time
Ground
Global Positioning System
Ground Speed
EMI —
ENR —
hg —
Inches of Mercury
Electromagnetic Interference
En Route
ETP —
Echo Tops
EULA — End User License Agreement
°F —
FID —
FIS —
FISDL —
Degrees Fahrenheit
Flight Identification
Flight Information System
Flight Information System Data
Link
FN —
Function
FP, FPL — Flight Plan
ft —
Feet
GBT —
Ground Based Transceiver
ICAO — International Civil Aviation
Organization
ID, IDENT — Identifier
IFR — Instrument Flight Rules
ILS —
Instrument Landing System
INFO — Information
kg —
kHz —
km —
kph —
kt —
Kilograms
Kilohertz
Kilometers
Kilometers Per Hour
Knots
LAT/LON —
Latitude/Longitude
Appendix
Abbreviations
lb —
Pounds
LINK — Data Link
LT —
Lightning
nm —
Nautical Miles
NOTAM — Notice to Airmen
NRM — Normal
°M —
Degrees Magnetic
m—
Meters
mb —
Millibars (of Pressure)
METAR — Meteorological Aviation Report
MHz — Megahertz
mi —
Statute Miles
MOA — Military Operations Area
MON — Monitor
mph — Statute Miles Per Hour
MSG — Message
MSL — Mean Sea Level
OBS — Omnibearing Selector
OS —
Off Scale
OVRL — Overlay
NAV — Navigation
NAVAID — Navigational Aid
NDB — Non-Directional Radio Beacon
NEXRAD — Next Generation RADAR
POS —
Position
RD, RDR —
RTE —
RADAR
Route
SCTR —
SIDS —
Sector
Standard Instrument
Departures
Significant Meteorological
Information
Skywatch®
Stabilization
SIGMET —
SKYW —
STAB —
STARS —
STBY —
SYS —
TAF —
TAS —
TAWS —
TCAD —
TCAS —
TER —
TFR —
TIS-A —
TIS-B —
TRAF —
TRANS —
Standard Terminal Arrival
Route
Standby
System
Terminal Aerodrome
Forecast
Traffic Advisory System
Terrain Awareness and
Warning System
Traffic/Collision Avoidance
Device
Traffic Alert/Collision
Avoidance System
Terrain
Temporary Flight Rules
Traffic Information Services
- Addressed
Traffic Information Service
- Broadcast
Traffic
Transmit
129
Appendix
Abbreviations
130
TRK —
Track (also Ground Track)
UAT —
UNR —
VFR —
VOL —
VOR —
WB —
WX —
Universal Access Transceiver
Unrestricted
Visual Flight Rules
Volume
VHF Omnidirectional Radio
Range
Warning Boxes
Weather
XPDR —
Transponder
Appendix
Software License
Software License Agreement
BY USING THE MX20, YOU AGREE TO BE BOUND BY THE TERMS AND CONDITIONS OF THE FOLLOWING SOFTWARE LICENSE AGREEMENT. PLEASE READ THIS AGREEMENT CAREFULLY.
Garmin grants you a limited license to use the software embedded in this device (the “Software”) in binary executable form in the normal operation of the product. Title, ownership rights, and intellectual property rights
in and to the Software remain with Garmin.
You acknowledge that the Software is the property of Garmin and is protected under the United States of
America copyright laws and international copyright treaties. You further acknowledge that the structure,
organization, and code of the Software are valuable trade secrets of Garmin and that the Software in source
code form remains a valuable trade secret of Garmin. You agree not to decompile, disassemble, modify, reverse
assemble, reverse engineer or reduce to human readable form the Software or any part thereof or create any
derivative works based on the Software. You agree not to export or re-export the Software to any country in
violation of the export control laws of the United States of America.
Product Registration and Support
Help us better support you by completing your online registration today! Have the serial number of your
MX20 handy and connect to the Garmin Web site (www.garmin.com). Look for the Product Registration link
on the home page. Also, be sure to record your serial number in the space provided to the left.
License and Warranty
Information
Serial Number
Use this area to record the serial number in case it is lost,
stolen, or needs service. Be sure to keep your original sales
receipt in a safe place or attach a photocopy inside the manual.
The serial number is located on the back of the unit.
Serial Number:
NOTE: If you have previously registered a Garmin product
purchase, we invite you to re-register using our NEW on-line
system. Many services provided by our new product registration
system are now being automated and re-registering your
purchase ensures you the best possible support from Garmin.
If you have any questions, Garmin’s Product Support department may be reached Monday through Friday, 8:00
AM to 5:00 PM Central Standard Time, by phone at 1-800-800-1020, or by e-mail at sales@garmin.com.
131
Appendix
Limited Warranty
Limited Warranty
This Garmin product is warranted to be free from defects in materials or workmanship for 24 months from the
date of purchase. Within this period, Garmin will at its sole option, repair or replace any components that fail
in normal use. Such repairs or replacement will be made at no charge to the customer for parts or labor, provided that the customer shall be responsible for any transportation cost. This warranty does not cover failures
due to abuse, misuse, accident or unauthorized alteration or repairs.
THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED OR STATUTORY, INCLUDING ANY LIABILITY ARISING UNDER
ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, STATUTORY OR
OTHERWISE. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, WHICH MAY VARY FROM STATE
TO STATE.
IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, WHETHER RESULTING FROM THE USE, MISUSE, OR INABILITY TO USE THIS
PRODUCT OR FROM DEFECTS IN THE PRODUCT. Some states do not allow the exclusion of incidental or
consequential damages, so the above limitations may not apply to you.
Garmin retains the exclusive right to repair or replace the unit or software or offer a full refund of the purchase
price at its sole discretion. SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY
BREACH OF WARRANTY.
To obtain warranty service, call your local Garmin authorized dealer. Or call Garmin Customer Service at one
of the numbers listed to the left for shipping instructions and an RMA tracking number. The unit should be
securely packed with the tracking number clearly written on the outside of the package. The unit should be
sent, freight charges prepaid, to any Garmin warranty service station. A copy of the original sales receipt is
required as the proof of purchase for warranty repairs.
Products sold through online auctions are not eligible for rebates or other special offers from Garmin. Online
auction confirmations are not accepted for warranty verification. To obtain warranty service, an original or
copy of the sales receipt from the original retailer is required. Garmin will not replace missing components
from any package purchased through an online auction.
132
Appendix
Contacting the Factory
Contacting the Factory
If the MX20 unit fails to operate despite troubleshooting efforts, contact Garmin Technical Support for assistance.
GARMIN International, Inc.
1200 East 151st Street
Olathe, KS 66062-3426
USA
Phone: (913) 397-8200
FAX: (913) 397-8282
http://www.garmin.com
Be prepared to offer the following information about the installation:
•
•
•
•
•
Installation configuration (list of any accessories)
Model number, part number with mod levels, and serial number
Software Versions
Description of problem
Efforts made to isolate the problem
133
Index
Index
Symbols
400 Hz 103
A
Abbreviations 128
Absolute 27
Accessories iv
Activation 82, 110
ADS-B 6, 7, 11, 28, 41, 46, 48, 50,
119, 120
Advisory flags 6
Advisory Hot Key 12
AFC 104
Aircraft symbol 111
AIRMET 63, 66, 69, 77, 78
Airports 20, 23, 55, 89, 93
Airport chart 27, 32
Airport surface diagram 88, 94
Airspace 25, 88
Alert Hot Key 13, 36, 38, 53
ALT 7, 118
Altitude 39, 40, 46, 50, 113
Annunciations 6
134
Antenna 86
Antenna tilt 102
Approach 39, 40, 95
Approach Chart 89, 90
Approach scenario 97
Arc 50
ART2000/2100 98
AutoLoad 113
AutoZoom 19
B
Backlight 125
Back course 24
Barometer 58
Barometric correction 10, 111
Baro keys 56
Basic operation 9
Bearing 101, 126
Bearing cursor 102
Bearing line 102
Boundaries 26
Brightness 3, 9
Broadcast FID 48
Broadcast VFR 48
C
Calibrate 104
Canadian radar 61
Canadian weather 62, 64, 66
Cards 121
Care Information 125
Categories 80
CDTI 44
Cell 85
Cell Movement 69, 72
Chart View 2, 22, 87, 91, 92
Airport surface 94
Approach chart 90
AutoLoad 113
Chart overlay 89
Considerations 95
Data source 88
Geo-referencing 88
Menu items 93
Overlay 90
Check antenna 109
City 77
City forecast 69
Cleaning 125
Clear 60
Cloud Tops 69, 71, 73, 75
Coasting 53
Code 49
Config 104
Confirm code 47
Confirm current baro 58
Contacting Factory 133
Contacting the factory 116
Contact XM radio 110
Controls 3
County 78
County warnings 69, 77
Course 126
Coverage 69, 71, 75
Current
Chart 94
Weather 71
Cursor Pre-Select 102
Custom Map 2, 19
Cyclone 69, 77, 79
D
Data-link 114
Database version 114
Data card 4, 88, 117, 121
Data Fields 126, 127
Data flags 7
Data port status 114
Degraded target 46
Demo 85
Desired track up 22, 30, 33
Diagnostics 82
Direct Access 108
Display 5, 51, 90
Index
Care 116
Graphic 51
Lat/Lon lines 112
Text 51
E
Echo Tops 63, 69, 71, 73, 75
Eeprom 104
ELE 103
Enter key 3
En Route Zoom 112
EULA ii
F
Fault messages 103
FID 48
Filter 39
FIS 2, 20, 59, 60, 61, 68, 123
Category 80
Message 80
Product times 76
WSI 61
XM Radio 69
FIS TX 114
FIS WX 114
Flight ID
Broadcast 51
Editing 51
Flight Plan 71
Flight plan 2, 7, 21, 30, 33, 50, 55, 57,
64, 74, 79, 84
Floods 78
Forecast 77
Forecast Time 77
Fpga 104
Freezing Levels 69, 77, 78
Functions 1
Function key 11
Function keys 3
G
Gain Control 101
GBT 44, 59
GDL 69/69A 69, 75, 82, 83, 105, 110,
123
GDL 90 2, 7, 8, 41, 46, 48, 49, 51,
114, 120
Geo-Referencing 88, 89, 91, 92, 93, 126
Getting started 1
Glossary of Terms 126, 127
GNS 480 19, 32, 87, 113
GPS 114
Graphical Weather 59, 62
Ground/Flight Mode 40
Ground Zoom 112
GTX 330 28, 52, 53
GWX 68 98
Gyro 103
H
HB 114
Heater 9
High airways 26, 31
Hold 102
Horizontal Mode 100, 101
Hurricanes 78
Hurricane track 69
HV 104
I
ICAO address 48, 113
Icing 78
Ident 8, 46, 120
IFR 30, 78
IFR chart 2
IHAS 36
ILS 23, 24
Info 20, 21, 91, 114
Initial Zoom level 21, 112
Intersection 25
Invert 22, 31, 33, 96
L
Label 31, 34, 51, 64, 71, 74, 79
Landing scenario 97
Last Channel 105, 106
Lat/Lon format 111
Lat/Lon lines 112
Legend 65, 71, 75, 79, 123
License agreement ii, 131
Lightning 2, 6, 29, 69, 71, 72, 75, 84,
85
Limitations v, 70, 96
Limited Warranty 132
Line selection key 4
LINK 119
Link 8
Loaded 93
Loading 109
Load Chart 22, 32, 90
Localizer 23, 24
Low airways 26, 31
LT 7, 118
M
Map 19, 100
Detail 65
Info 20
Orientation 12, 19, 21, 30, 33, 35,
50, 57, 65, 71, 76, 79
135
Index
Pan 20
Scale 19
Maritime conditions 78
Menu Item 4
Menu key 3
Messages 2, 7, 18
METARs 20, 60, 63, 66, 69, 71, 72, 75
Mode S 52
Mountains 78
Mute 39, 107
On 3
Options Menu 13
Overlay 62, 64
Ownship symbol 7, 43, 111
P
Nav 8, 24
Nav Data 19, 21, 22, 31, 34, 55
NDB 25
NexRad 69, 70, 71, 73, 75
No-bearing 38
Noise monitor 86
North up 21, 30, 33
NOTAM 96
No signal 109
Pan 19, 20, 21, 30, 33, 69, 91, 93
Photosensor 3, 9
Pop-Up 13, 36, 38, 39, 53, 58, 93
POS 7, 118
Power 3, 9
Pre-Heat 9
Present position 81
Preset 105, 106, 107
Pressure altitude 43, 50
Product Status 81, 82
Product Support 131
Product Times 61, 75, 82
Profile view 35
Prompt 13, 38, 53
Proximate traffic 53
O
R
OBS 24
Obstructions 14, 28, 35
Off 3, 99
Off air 109
Off scale 37
Radar 2, 8, 98
Radar Coverage 69, 71, 75
Radar range control 101
Radar return signals 103
Radar setup 103
N
136
Radar stabilization 103
Radar test 99
Radar troubleshooting 103
Radio ID 82, 105
Rainfall 59
Ram 104
Range ring 50
RDR 8, 119
Receiver performance 81
Reflectivity 71
Registration 131
Relative 27
Relative altitude 43, 50, 52
Roads 26
Rocker switch 9
Rotary knob 9
Route 7
RS-181 98
RTE 7, 118
Runway 20
S
Save Preset 106
Search 93
Search ID 93
Select Airport 93
Select Chart 93
Select Loaded Chart 93
Self-Test 9, 10, 39, 85
Serial Number 131
Services 49
Service class 82
Service vehicle 46
Set baro 58, 111
Shield 39, 40
SIDS 88
SIGMET 63, 66, 69, 77
SKYW 119
Skywatch 6, 28, 36, 38
SL30 8, 23
Slave Zoom 113
Software License Agreement 131
Software version 114
Sorting 60, 66, 68, 81
Sorting FIS messages 68
Special terrain 119
Specifications 122
Split Screen 2, 11, 35
Stabilization 84, 85, 103
Standby 37, 38, 39, 48, 53, 54, 99, 129
STARS 88
Start Up 10
Status 37, 54, 61, 68, 69, 81, 82
Stormscope 2, 84, 85
Strike 85
Strikes 29, 84
Index
Strike test 86
Subscription 62, 63, 64, 69, 81, 82
Support 131
Surface Chart 87, 88, 89, 90, 94, 95, 96
Surface targets 46
Surface winds 78
Symbology 14, 36, 37, 46, 52, 53
System 2, 111
Data 85
Info 114
Test 115
S AIRMET 63
T
TAF 60, 61, 66, 67, 81
Take-off scenario 97
Target 41, 50, 51
Color 46
Degraded 46
Position 47, 51
Surface 46
TAS 14, 36, 38
TAS Data Fail 38
TAS Fail 38
TAS Self-Test 39
TAS Time-Out 38
TAWS 8, 22, 35, 56, 58
Taxi scenario 97
TCAD 8, 28, 36, 39, 40, 119
TCAS 52
Technical Support 133
Temp 104
TER 8, 58, 119
Terrain 2, 6, 7, 11, 14, 22, 27, 35, 56,
57, 119
Color 57
Terrain advisory 12
Test 2, 9, 10, 38, 85, 86, 99, 111, 115,
117, 119
Test pattern 115
Text 66, 80
TFR 64, 66, 69, 70, 81
TFR Label 74
Thumbnail 13, 14, 28, 36, 52
Thunderstorm 71, 78
Tilt Control 101
Time 49
TIS 6, 14, 44, 46, 52
TIS-A 1, 8, 14, 52
TIS-B 14, 44
Tornados 78
Towers 28
Track up 21, 30, 33, 57
Track up 360 21, 30, 33, 57
Track up arc 21, 30, 33, 57
TRAF 7
Traffic 2, 6, 14, 28, 36, 41, 44, 52
Advisory 53
Label 51
Status 37
Traffic Alert 13, 38, 53
Traffic Map Orientation 50
Traffic not displayed 38
Traffic off scale 54
Transition speed 112
Transmit Altitude 48
Transmit status 48
Transponder 43, 44
Transponder code 49
Troubleshooting 103, 117
Turbulence 78
Typical operational scenario 97
T AIRMET 63
VFR chart 2
View 67, 80
Voice alert 39, 40
Volume 39, 40
VOR 23
U
Xmitter 104
XM Radio 2, 8, 69, 81, 105, 107
Activating 81, 82, 83, 110
Advisory Messages 109
Audio 105
Categories 108
Channels 107
FIS 69
Radio ID 105
Volume 107
UAT 7, 14, 20, 41, 44, 46, 47, 48, 51,
59, 114
Updating 109
V
Vertical Filtering 37, 39, 40
Vertical Mode 37, 100, 101
Vertical Range 39, 40
VFR 33, 78
W
Warranty 132
Waters 26
Weather v, 62, 64, 65, 67, 68, 98, 99,
110, 114, 123, 124
WSI 61
XM Radio 69, 105
Winds Aloft 69, 71, 74, 75
WSI 20, 61
WX500 6, 29, 84, 118
X
137
Index
Weather 69
XPDR 8, 120
Z
Zoom 13, 19, 22, 30, 31, 33, 34, 35,
36, 37, 41, 47, 56, 69, 87, 90, 91,
92, 93, 94, 95, 96, 112, 113
Zoom level 12, 19, 21, 28, 29, 69
Z AIRMET 63
138
© 2005 Garmin Ltd. or its subsidiaries
Garmin International, Inc.
1200 East 151st Street, Olathe, Kansas 66062, U.S.A.
Garmin (Europe) Ltd.
Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51 9DL, U.K.
Garmin Corporation
No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan
www.garmin.com
Garmin AT P/N 560-1026-09 Rev. A (Garmin P/N 190-00479-00 Rev D)