Garmin 635, gtn 625 User Manual

Map

Traffic

Terrain

GTN 625/635/650

Pilot's Guide

Flight Plan

Procedures

Waypoint Info

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© 2011 Garmin Ltd. or its subsidiaries. All rights reserved.

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

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Tel: [phone] Fax: [phone]

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March 2011 Printed in the U.S.A.

LIMITED WARRANTY

All Garmin avionics products are warranted to be free from defects in materials or workmanship for:
two years from the date of purchase for new Remote-Mount and Panel-Mount products; one year
from the date of purchase for new portable products and any purchased newly-overhauled products;
six months for newly-overhauled products exchanged through a Garmin Authorized Service Center;
and 90 days for factory repaired or newly-overhauled products exchanged at Garmin in lieu of repair.
Within the applicable 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 apply to: (i) cosmetic damage, such as scratches, nicks and dents; (ii) consumable parts,
such as batteries, unless product damage has occurred due to a defect in materials or workmanship;
(iii) damage caused by accident, abuse, misuse, water, flood, fire, or other acts of nature or external
causes; (iv) damage caused by service performed by anyone who is not an authorized service
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permission of Garmin. In addition, Garmin reserves the right to refuse warranty claims against
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THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL OTHER
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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 (with a new or newly-overhauled replacement
product) the product 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.

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will not replace missing components from any package purchased through an online auction.

International Purchases: A separate warranty may be provided by international distributors for
devices purchased outside the United States depending on the country. If applicable, this warranty is
provided by the local in-country distributor and this distributor provides local service for your device.
Distributor warranties are only valid in the area of intended distribution. Devices purchased in the
United States or Canada must be returned to the Garmin service center in the United Kingdom, the
United States, Canada, or Taiwan for service.

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

Garmin GTN 625/635/650 Pilot’s Guide

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WARNING: Navigation and terrain separation must NOT be predicated
upon the use of the terrain function. The GTN 6XX Terrain Proximity feature
is NOT intended to be used as a primary reference for terrain avoidance
and does not relieve the pilot from the responsibility of being aware of
surroundings during flight. The Terrain Proximity feature is only to be used
as an aid for terrain avoidance and is not certified for use in applications
requiring a certified terrain awareness system. Terrain data is obtained
from third party sources. Garmin is not able to independently verify the
accuracy of the terrain data.

WARNING: The displayed minimum safe altitudes (MSAs) are only advisory
in nature and should not be relied upon as the sole source of obstacle and
terrain avoidance information. Always refer to current aeronautical charts
for appropriate minimum clearance altitudes.

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WARNING: The Garmin GTN 6XX has a very high degree of functional
integrity. However, the pilot must recognize that providing monitoring and/
or self-test capability for all conceivable system failures is not practical.
Although unlikely, it may be possible for erroneous operation to occur
without a fault indication shown by the GTN 6XX. It is thus the responsibility
of the pilot to detect such an occurrence by means of cross-checking with
all redundant or correlated information available in the cockpit.

WARNING: The altitude calculated by GPS receivers is geometric height
above Mean Sea Level and could vary significantly from the altitude
displayed by pressure altimeters, such as the output from the GDC 74A/B
Air Data Computer, or other altimeters in aircraft. GPS altitude should never
be used for vertical navigation. Always use pressure altitude displayed by
pressure altimeters in the aircraft.

WARNING: Do not use outdated database information. Databases used
in the GTN 6XX system must be updated regularly in order to ensure that
the information remains current. Pilots using an outdated database do so
entirely at their own risk.

WARNING: Do not use basemap (land and water data) information for
primary navigation. Basemap data is intended only to supplement other
approved navigation data sources and should be considered as an aid to
enhance situational awareness.

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WARNING: Traffic information shown on the GTN 6XX is provided as an
aid in visually acquiring traffic. Pilots must maneuver the aircraft based only
upon ATC guidance or positive visual acquisition of conflicting traffic.

WARNING: Datalink weather should not be used for hazardous weather
penetration. Weather information provided by the GDL 69/69A is approved
only for weather avoidance, not penetration.

WARNING: Datalink weather data is to be used for long-range planning
purposes only. Due to inherent delays in data transmission and the relative
age of the data, datalink weather data should not be used for short-range

weather avoidance.

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WARNING: For safety reasons, GTN 6XX operational procedures must be
learned on the ground.

WARNING: To reduce the risk of unsafe operation, carefully review and
understand all aspects of the GTN 6XX Pilot’s Guide. Thoroughly practice
basic operation prior to actual use. During flight operations, carefully
compare indications from the GTN 6XX to all available navigation sources,
including the information from other NAVAIDs, visual sightings, charts, etc.
For safety purposes, always resolve any discrepancies before continuing
navigation.

WARNING: Never use the datalink weather to attempt to penetrate a
thunderstorm. Both the FAA Advisory Circular, Subject: Thunderstorms, and
the Airman’s Information Manual (AIM) recommend avoiding “by at least
20 miles any thunderstorm identified as severe or giving an intense radar
echo.”

CAUTION: The United States government operates the Global Positioning
System and is solely responsible for its accuracy and maintenance. The
GPS system is subject to changes which could affect the accuracy and
performance of all GPS equipment. Portions of the Garmin GTN 6XX utilize
GPS as a precision electronic NAVigation AID (NAVAID). Therefore, as with
all NAVAIDs, information presented by the GTN 6XX can be misused or
misinterpreted and, therefore, become unsafe.

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CAUTION: The Garmin GTN 6XX does not contain any user-serviceable
parts. Repairs should only be made by an authorized Garmin service center.
Unauthorized repairs or modifications could void both the warranty and
the pilot’s authority to operate this device under FAA/FCC regulations.

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CAUTION: The GTN displays use a lens coated with a special anti-reflective
coating that is very sensitive to skin oils, waxes, and abrasive cleaners.
CLEANERS CONTAINING AMMONIA WILL HARM THE ANTI-REFLECTIVE
COATING. It is very important to clean the lens using a clean, lint-free cloth
and an eyeglass lens cleaner that is specified as safe for anti-reflective
coatings.

CAUTION: Garmin would like to remind pilots flying with GDL
69/69A-equipped aircraft that TFRs are only advisory and are not a
replacement for a thorough preflight briefing on TFR times and locations.
Always confirm TFR data through official sources and contact your Flight
Service Station for interpretation of TFR data.

NOTE: All visual depictions contained within this document, including
screen images of the GTN bezel and displays, are subject to change and
may not reflect the most current GTN software. Depictions of equipment
may differ slightly from the actual equipment.

NOTE: This device complies with part 15 of the FCC Rules. Operation is
subject to the following two conditions: (1) this device may not cause
harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.

NOTE: Terrain data is not displayed when the aircraft latitude is greater
than 75° North or 60° South.

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Index

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

NOTE: Canadian installations: In accordance with Canadian Radio
Specifications Standard 102 (RSS 102), RF field strength exposure to persons
from an antenna connected to this device should be limited to 60V/m for
controlled environment and 28 V/m for uncontrolled environment.

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NOTE: This device complies with Part 15 of

the FCC limits for Class B digital devices. This

equipment generates, uses, and can radiate
radio frequency energy and, if not installed

Help us better support you by completing our

and used in accordance with the instructions,

may cause harmful interference to radio

communications. Furthermore, there is no

guarantee that interference will not occur in a

or stolen unit tracking. Please, have the serial

particular installation.

web site (www.garmin.com) and look for our

If this equipment does cause harmful

interference, the user is encouraged to try

to correct the interference by relocating the
equipment or connecting the equipment to a
different circuit than the affected equipment.

Consult an authorized dealer or other qualified

avionics technician for additional help if these

remedies do not correct the problem.

anti-reflective coating which is very sensitive to
skin oils, waxes and abrasive cleaners. It is very

important to clean the lens using an eyeglass

lens cleaner which is specified as safe for anti-

reflective coatings and a clean, lint-free cloth.

Operation of this device is subject to the
following conditions: (1) This device may

not cause harmful interference, and (2) this
device must accept any interference received,

including interference that may cause undesired

performance and functional requirements of AC

operation.

To obtain accessories for your unit, please

contact your Garmin dealer.

on-line registration form today! Registration

ensures that you will be notified of product

updates and new products and provides lost

number of your unit handy, connect to our

Product Registration link on the Home page.

The display surface is coated with a special

AC 90-100A Statement of Compliance:
The Garmin navigational unit meets the

90-100A.

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Product Registration and Support

Help us better support you by completing your online registration today!

Have the serial number of your product 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.

If you have any questions, the Garmin Product Support department may be

reached Monday through Friday, 7:00 AM to 7:00 PM Central Time.

US: 913-397-8200

US Toll Free: 1-866-739-5687

Canada Toll Free: 1-866-429-9296

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Record of Revisions

Part Number Revision Date Description

190-01007-03 A

2/4/11 Initial release

B

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Contents

Product Registration and Support ......................................................................v

Welcome ... .................................................................................................... xvi

About This Guide ............................................................................................ xvi

Conventions .................................................................................................. xvii

1 Getting Started ....................................................................................1-1

1.1 Model Descriptions .............................................................................. 1-1

1.1.1 GTN 625 ...............................................................................1-1

1.1.2 GTN 635 ...............................................................................1-2

1.1.3 GTN 650 ...............................................................................1-2

1.2 About This Pilot's Guide .......................................................................1-2

1.2.1 Conventions ..........................................................................1-2

1.2.2 Using the Touchscreen ........................................................... 1-2

1.3 Product Description ..............................................................................1-3

1.3.1 Secure Data Card ..................................................................1-3

1.3.2 Pilot Controls ........................................................................ 1-4

1.3.2.1 Volume/Squelch Knob ............................................................1-4

1.3.2.2 Large/Small Concentric Knobs ................................................1-4

1.3.2.3 HOME Key ............................................................................. 1-4

1.3.2.4 Direct-To Key ......................................................................... 1-5

1.3.2.5 Touchscreen Keys .................................................................. 1-5

1.4 Unit Power Up .....................................................................................1-6

1.4.1 Start-Up Screens ....................................................................1-6

1.4.2 Database Verification and Fuel Settings ..................................1-7

1.5 System Operation...............................................................................1-10

1.5.1 Using the Touchscreen Key Controls ..................................... 1-10

1.5.2 Setup Page ..........................................................................1-10

1.5.2.1 System Setup Values ............................................................1-11

1.5.2.2 Units Settings Values ...........................................................1-12

1.5.2.3 Alerts Settings Values ..........................................................1-13

1.5.3 Dual GTN 6XX Installations .................................................1-13

1.6 Direct-To Navigation .......................................................................... 1-15

1.6.1 Direct-To a Waypoint ...........................................................1-15

1.6.2 Direct-To a Flight Plan Waypoint .......................................... 1-15

1.6.3 Direct-To a Nearest Airport ..................................................1-15

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1.7 Selecting Com Frequencies .................................................................1-16

1.8 Flight Planning ..................................................................................1-18

1.8.1 Creating a Flight Plan ..........................................................1-18

1.9 IFR Procedures ................................................................................... 1-19

1.10 Dead Reckoning .................................................................................1-20

2 Transponder Controls (Optional).........................................................2-1

2.1 Select Transponder ...............................................................................2-2

2.2 IDENT .................................................................................................. 2-2

2.3 Transponder Mode ............................................................................... 2-3

2.3.1 Standby .................................................................................2-3

2.3.2 Ground .................................................................................2-4

2.3.3 On ........................................................................................ 2-4

2.3.4 Altitude Reporting .................................................................2-5

2.4 VFR ..................................................................................................... 2-5

2.5 Selecting a Squawk Code ..................................................................... 2-6

3 NAV/COM .............................................................................................3-1

3.1 Volume ................................................................................................3-2

3.2 Squelch ...............................................................................................3-2

3.3 Com and Nav Frequency Window and Tuning ....................................... 3-3

3.3.1 Com and Nav Frequency Finding ............................................3-5

3.3.1.1 Find Recent Frequencies ........................................................3-5

3.3.1.2 Find Nearest Frequencies .......................................................3-6

3.3.1.3 Find Flight Plan Frequencies ...................................................3-7

3.3.1.4 Find User Frequencies ............................................................ 3-8

3.3.2 Adding a New User Frequency ...............................................3-8

3.3.3 Emergency Frequency .......................................................... 3-10

3.3.4 Stuck Microphone ...............................................................3-10

3.3.5 Remote Frequency Selection Control .................................... 3-11

3.4 Com Frequency Monitoring ................................................................ 3-11

3.5 Nav (VOR/Localizer/Glideslope) Receiver Operations ........................... 3-12

3.5.1 Ident Audio and Volume ......................................................3-12

3.5.2 Nav Tuning Window .............................................................3-13

3.5.3 Nav Frequency Finding ........................................................3-14

4 Flight Plans .......................................................................................4-1

4.1 Creating a New Flight Plan ..................................................................4-2

4.2 Active Flight Plan Page.........................................................................4-4

4.2.1 Waypoint Options .................................................................. 4-5

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4.2.1.1 Activate Leg ..........................................................................4-6

4.2.1.2 Insert Before .........................................................................4-7

4.2.1.3 Insert After ............................................................................ 4-8

4.2.1.4 Remove ................................................................................. 4-8

4.2.1.5 Load Procedures .................................................................... 4-9

4.2.1.6 Waypoint Info........................................................................4-9

4.2.2 Airways ............................................................................... 4-10

4.3 Flight Plan Menu ...............................................................................4-13

4.3.1 Store Flight Plan ..................................................................4-14

4.3.2 Invert Flight Plan ................................................................. 4-14

4.3.3 Parallel Track .......................................................................4-15

4.3.4 Edit Data Fields ................................................................... 4-17

4.3.5 Flight Plan Catalog Route Options ....................................... 4-18

4.3.5.1 Catalog Route Option - Activate........................................... 4-19

4.3.5.2 Catalog Route Option - Invert & Activate .............................. 4-19

4.3.5.3 Catalog Route Option - Preview ........................................... 4-20

4.3.5.4 Catalog Route Option - Edit ................................................. 4-20

4.3.5.5 Catalog Route Option - Copy ............................................... 4-21

4.3.5.6 Catalog Route Option - Delete ............................................. 4-22

4.3.6 Delete Flight Plan ................................................................ 4-22

4.3.6.1 Delete Flight Plan from Catalog ........................................... 4-22

4.3.6.2 Delete Active Flight Plan ...................................................... 4-23

4.3.8 Preview Flight Plan ..............................................................4-24

4.3.8.1 Previewing the Active Flight Plan .........................................4-24

4.3.8.2 Previewing a Flight Plan in the Catalog ................................ 4-24

5 Direct-To ...............................................................................................5-1

5.1 Direct-To Navigation ............................................................................ 5-1

5.2 Direct-To a Flight Plan Waypoint ........................................................... 5-3

5.3 Direct-To a Nearest Airport ...................................................................5-4

5.4 Removing a Direct-To Course ............................................................... 5-5

5.5 Direct-To Map Waypoint ....................................................................... 5-6

5.6 Off-Route Direct-To Course .................................................................. 5-7

6 Procedures ........................................................................................6-1

6.1 Basic Approach Operations ..................................................................6-1

6.2 Selecting a Departure ........................................................................... 6-3

6.3 Selecting an Arrival .............................................................................. 6-5

6.4 Selecting an Approach ......................................................................... 6-7

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6.5 Approaches with Procedure Turns ....................................................... 6-10

6.6 Flying the Missed Approach ............................................................... 6-10

6.7 Flying an Approach with a Hold ..........................................................6-11

6.8 Flying a DME Arc Approach ................................................................ 6-12

6.11 ILS Approaches (GTN 650 Only) .........................................................6-13

6.12 RNAV Approach Procedures ...............................................................6-14

6.13 Points to Remember for All Procedures ...............................................6-15

6.14 Points to Remember for Localizer or VOR-based Approaches ...............6-15

6.15 Enabling Autopilot Outputs for the King KAP140/KFC225 ................... 6-17

7 Waypoint Info ...................................................................................7-1

7.1 Waypoint Selection .............................................................................. 7-3

7.2 Airport .............................................................................................. 7-4

7.2.1 Info ....................................................................................... 7-4

7.2.2 Preview ................................................................................. 7-5

7.2.3 Procedures ............................................................................ 7-6

7.2.4 Runways ............................................................................... 7-7

7.2.5 Frequencies ........................................................................... 7-8

7.2.6 Weather (WX) Data ............................................................... 7-9

7.3 Intersection (INT) ............................................................................... 7-10

7.4 VOR ..................................................................................................7-11

7.5 NDB .................................................................................................. 7-12

7.6 User Waypoints (User) ........................................................................ 7-13

7.6.1 Select User Waypoint By Name ............................................ 7-14

7.6.2 Select User Waypoint From A List ......................................... 7-14

7.6.3 Edit User Waypoint ..............................................................7-14

7.6.4 Delete User Waypoint ..........................................................7-14

7.7 Create Waypoint .................................................................. 7-15

7.7.1 Waypoint Location Based on Lat/Lon Coordinates ................ 7-16

7.7.2

7.7.3

Waypoint Location Based on Two Radials ........................................7-17

Waypoint Location Based on Radial and Distance ............................7-18

8 Map ...................................................................................................8-1

8.1 Map Menu ..........................................................................................8-3

8.1.1 Map Overlays ........................................................................ 8-4

8.1.1.1 Topo ..................................................................................... 8-4

8.1.1.2 Airways ................................................................................. 8-4

8.1.1.3 Terrain .................................................................................. 8-5

8.1.1.4 NEXRAD (Optional) ............................................................... 8-5

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8.1.1.5 StormScope® (Optional) ......................................................... 8-6

7.1.1.6 Traffic (Optional) .................................................................... 8-6

8.1.2 Map Setup ............................................................................8-7

8.1.2.1 Map ...................................................................................... 8-9

7.1.2.2 Aviation .............................................................................. 8-15

8.1.2.3 Land ................................................................................... 8-16

8.1.2.4 Airway Range ...................................................................... 8-17

8.1.2.5 Traffic (Optional) .................................................................. 8-18

8.1.2.6 Weather (Optional) .............................................................. 8-19

8.1.3 Map Data Fields .................................................................. 8-19

8.1.4 Map Detail .......................................................................... 8-21

8.2 Map Panning ..................................................................................... 8-23

8.3 Map Controls ..................................................................................... 8-25

8.3.1 Pan Map Mode....................................................................8-25

8.3.2 Create Waypoint .................................................................. 8-25

8.3.3 Graphically Edit Flight Plan Mode ........................................8-26

8.3.3.1 Adding a Waypoint to an Existing Flight Plan .......................8-26

8.3.3.2 Adding a Waypoint to the End of an Existing Flight Plan ....... 8-27

8.3.3.3 Removing a Waypoint from an Existing Flight Plan ...............8-28

8.3.3.4 Creating a Flight Plan Without an Existing Flight Plan ........... 8-28

8.4 CDI (GTN 650 only) ........................................................................8-29

8.5 OBS ................................................................................................ 8-30

8.6 Map Symbols ..................................................................................... 8-31

®

8.7 SafeTaxi

8.7.1 Using SafeTaxi

.........................................................................................8-32

®

.................................................................8-32

8.7.2 Hot Spot Information ........................................................... 8-33

®

8.7.3 SafeTaxi

Cycle Number and Revision .................................. 8-33

9 Traffic ................................................................................................9-1

9.1 Traffic Information Service (TIS) (Optional) ............................................ 9-1

9.1.1 TIS Symbology .......................................................................9-2

9.1.2 Traffic Map Page....................................................................9-3

9.1.3 Displaying Traffic on the Traffic Page ....................................... 9-4

9.1.4 Altitude Display .....................................................................9-4

9.1.5 TIS Limitations ....................................................................... 9-5

9.1.6 TIS Alerts ............................................................................... 9-7

9.1.7 TIS System Status .................................................................. 9-8

9.2 TAS Traffic (Optional)..........................................................................9-10

Foreward

Getting
Started

Xpdr Ctrl

Com/Nav

FPL

Direct-To

Proc

Wpt Info

Map

Traffic

Terrain

Weather

Nearest

Music

Utilities

System

Messages

Symbols

Appendix

Index

Garmin GTN 625/635/650 Pilot’s Guide

xi190-01004-03 Rev. B

Foreward

Getting
Started

Xpdr Ctrl

Com/Nav

FPL

Direct-To

Proc

Wpt Info

Map

Traffic

Terrain

Weather

Nearest

Music

Utilities

System

Messages

Symbols

Appendix

Index

9.2.1 TAS Symbology .................................................................... 9-11

9.2.1 Displaying and Operating Traffic (TAS Systems) .....................9-12

9.2.1.1 Switching from Standby Mode to Operating Mode ............... 9-12

9.2.1.2 Range Ring ......................................................................... 9-13

9.2.2 Altitude Display ...................................................................9-13

9.2.4 Traffic System Status ............................................................ 9-14

9.2.5 Traffic Pop-Up......................................................................9-15

9.3 Traffic Test ......................................................................................... 9-16

10 Terrain .............................................................................................10-1

10.1 Terrain Configurations ........................................................................10-1

10.2 Terrain Proximity ................................................................................ 10-1

10.2.1 Displaying Terrain Proxmity .................................................. 10-3

10.2.1.1 Terrain Page 120° Arc or 360° Rings .................................... 10-4

10.2.2 Terrain Limitations ............................................................... 10-5

10.3 Terrain Awareness and Warning System (TAWS-B) Optional ................. 10-6

10.3.1 TAWS-B Requirements .........................................................10-6

10.3.2 TAWS-B Limitations ............................................................. 10-6

10.3.3 Computing GPS Altitude for TAWS ....................................... 10-7

10.3.4 Baro-Corrected Altitude Versus GSL Altitude .........................10-7

10.3.5 Using TAWS ........................................................................10-8

10.3.6 Displaying TAWS Data ......................................................... 10-9

10.3.7 TAWS Page .......................................................................10-10

10.3.7.1 Terrain Page Layers ............................................................ 10-10

10.3.7.2 Terrain Page View .............................................................. 10-11

10.3.7.3 Terrain Page TAWS Selections ............................................10-11

10.3.8 TAWS Alerts ......................................................................10-12

10.3.8.1 TAWS-B Alerting Colors and Symbology ............................. 10-13

10.3.8.2 Excessive Descent Rate Alert .............................................. 10-15

10.3.8.3 Forward Looking Terrain Avoidance .................................... 10-15

10.3.8.4 Premature Descent Alerting ............................................... 10-16

10.3.8.5 Negative Climb Rate After Take-Off Alert (NCR) .................. 10-17

10.3.8.8 TAWS Not Available Alert ................................................... 10-18

10.3.8.9 TAWS Failure Alert ............................................................. 10-18

10.3.9 TAWS System Status .......................................................... 10-18

11 Weather ..........................................................................................11-1

11.1 XM Weather Products (Optional) ........................................................ 11-1

11.1.1 Displaying Data Link Weather ..............................................11-3

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11.1.2 Weather Legend ..................................................................11-4

11.1.3 Weather Map Orientation ....................................................11-5

11.1.4 XM Weather Symbols and Product Age ................................ 11-6

11.1.5 NEXRAD ............................................................................. 11-8

11.1.5.1 Reflectivity ..........................................................................11-9

11.1.5.2 NEXRAD Limitations ..........................................................11-10

11.1.6 Echo Tops .......................................................................... 11-12

11.1.7 Cloud Tops ........................................................................ 11-13

11.1.8 Cell Movement .................................................................. 11-14

11.1.9 SIGMETs and AIRMETs ......................................................11-15

11.1.10 County Warnings ............................................................... 11-16

11.1.11 Freezing Level.................................................................... 11-17

11.1.12 METARs ............................................................................11-18

11.1.13 Cyclone ............................................................................. 11-19

11.1.14 Lightning ........................................................................... 11-20

11.1.15 Weather Forecast ..............................................................11-21

11.1.16 Winds Aloft ....................................................................... 11-23

11.1.17 Icing ................................................................................. 11-24

11.1.18 Turbulence ........................................................................ 11-25

11.1.19 AIREP/PIREP ......................................................................11-26

®

11.2 StormScope

11.2.1 StormScope

11.2.2 Clearing the StormScope

11.2.3 Changing the StormScope

11.2.4 Changing the StormScope

11.2.5 Displaying StormScope

Weather ................................................................... 11-27

®

(Optional) ..................................................... 11-27

®

Page .........................................11-28

®

Display View ...........................11-28

®

Data Display Range .................11-29

®

Data on the Map Page ................. 11-29

12 Nearest ...........................................................................................12-1

12.1 Select a Nearest Page ........................................................................ 12-2

12.2 Nearest Airport ..................................................................................12-3

12.3 Nearest Intersection (INT) ..................................................................12-4

12.4 Nearest VOR ...................................................................................... 12-5

12.5 Nearest NDB ...................................................................................... 12-7

12.6 Nearest User Waypoint ....................................................................... 12-8

12.7 Nearest Airspace ................................................................................ 12-9

12.8 Nearest ARTCC ................................................................................12-11

12.9 Nearest Flight Service Station (FSS) ..................................................12-12

12.10 Nearest Weather Frequency (WX Freq) .............................................. 12-13

Foreward

Getting
Started

Xpdr Ctrl

Com/Nav

FPL

Direct-To

Proc

Wpt Info

Map

Traffic

Terrain

Weather

Nearest

Music

Utilities

System

Messages

Symbols

Appendix

Index

Garmin GTN 625/635/650 Pilot’s Guide

xiii190-01004-03 Rev. B

Foreward

Getting
Started

Xpdr Ctrl

Com/Nav

FPL

Direct-To

Proc

Wpt Info

Map

Traffic

Terrain

Weather

Nearest

Music

Utilities

System

Messages

Symbols

Appendix

Index

13 Music ...............................................................................................13-1

13.1 Activating XM® Satellite Radio Services .............................................. 13-2

13.2 Music Operation ................................................................................ 13-3

13.2.1 Browsing Channels and Categories ...................................... 13-4

®

13.2.2 Selecting an XM

®

13.2.3 XM

13.2.4 XM

Radio Volume ..............................................................13-6

®

Radio Channel Presets ................................................. 13-7

Radio Channel by Number .......................13-5

13.2.4.1 Saving a Preset .................................................................... 13-7

13.2.4.2 Recalling a Preset ................................................................13-7

13.3 GDL 69/69A Data Link Receiver Troubleshooting .................. 13-8

14 Utilities ...........................................................................................14-1

14.1 Vertical Calculator (VCALC) ............................................................. 14-3

14.1.1 Target Altitude ..................................................................... 14-5

14.1.2 Altitude Type ....................................................................... 14-5

14.1.3 Vertical Speed (VS) Profile .................................................... 14-6

14.1.4 Target Offset .......................................................................14-6

14.1.5 Before/After Target Waypoint ............................................... 14-7

14.1.6 Target Waypoint .................................................................. 14-7

14.1.7 Display VCALC Messages ..................................................... 14-8

14.1.8 Restore VCALC Defaults ....................................................... 14-8

14.2 Flight Timers ...................................................................................14-9

14.3 RAIM Prediction ............................................................................... 14-10

14.4 Trip Planning ...................................................................................14-12

14.4.1 Point-To-Point Mode .......................................................... 14-13

14.3.2 Flight Plan Mode ............................................................... 14-16

14.5 Fuel Planning ................................................................................... 14-18

14.5.1 Point-To-Point Mode .......................................................... 14-18

14.5.2 Flight Plan Mode ............................................................... 14-21

14.6 DALT/TAS/Winds .............................................................................. 14-23

14.7 Clean Screen Mode .......................................................................... 14-26

15 System ...........................................................................................15-1

15.1.1 Serial Number and System ID ............................................... 15-4

15.1.2 Version Information ............................................................. 15-4

15.1.3 Database Information .......................................................... 15-4

15.2 GPS Status ......................................................................................... 15-7

15.2.1 GPS Status Page .................................................................. 15-7

15.2.2 Satellite-Based Augmentation System (SBAS) .....................15-10

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15.2.3 Circle of Uncertainty .......................................................... 15-11

15.3 External LRUs ..................................................................................15-11

15.3.1 GDL 69 (and GDL 69A) Status ........................................... 15-12

15.4 Setup...............................................................................................15-14

15.4.1 System Setup.....................................................................15-14

15.4.2 CDI Selection ..................................................................... 15-15

15.4.3 Date/Time ......................................................................... 15-16

15.4.4 Nearest Airport Criteria ...................................................... 15-17

15.4.5 Com Channel Spacing ....................................................... 15-18

15.4.6 Crossfill ............................................................................. 15-19

15.4.2 Alerts Settings ................................................................... 15-21

15.4.2.1 Arrival ............................................................................... 15-21

15.4.2.2 Proximity ........................................................................... 15-21

15.4.2.3 Airspace Alert Options ....................................................... 15-22

15.5 Units Settings ..................................................................................15-23

15.5.1 Setup Units ....................................................................... 15-23

15.5.2 Setting a User-Configured (Manual) Nav Angle ..................15-24

15.6 Audio .............................................................................................. 15-26

15.7 Ownship Settings ............................................................................. 15-26

15.8 Backlight Settings ............................................................................ 15-27

16 Alert Messages ...............................................................................16-1

Foreward

Getting
Started

Xpdr Ctrl

Com/Nav

FPL

Direct-To

Proc

Wpt Info

Map

Traffic

Terrain

17 Symbols ..............................................................................................17-1

17.1 Map Page Symbols.............................................................................17-1

17.2 SafeTaxi

™ Symbols .......................................................................... 17-2

17.3 Traffic Symbols ................................................................................... 17-2

17.4 Terrain Obstacle Symbols ...................................................................17-3

17.5 Basemap Symbols ..............................................................................17-4

17.6 Map Tool Bar Symbols ........................................................................ 17-4

17.7 Miscellaneous Symbols ......................................................................17-5

18 Appendix ............................................................................................18-1

18.1 Glossary ............................................................................................18-1

18.2 SD Card Use and Databases ............................................................... 18-9

18.2.1 Jeppesen Databases ............................................................ 18-9

18.2.2 Garmin Databases ............................................................. 18-10

18.3 Demo Mode ....................................................................................18-13

18.4 Glove Qualification Procedure .......................................................... 18-16

Index .....................................................................................................Index-1

Garmin GTN 625/635/650 Pilot’s Guide

Weather

Nearest

Music

Utilities

System

Messages

Symbols

Appendix

Index

xv190-01004-03 Rev. B

Foreward

Getting
Started

Xpdr Ctrl

Com/Nav

FPL

Welcome ...

Welcome to the GTN era of navigation. The Garmin GTN supports airway

navigation and flexible flight planning, including arrival and departure procedures
and precision approaches. All of these advanced features are easily accessed with
an easy-to-use touchscreen display, another first for general aviation. You can
be confident in knowing that this product has been designed to meet or exceed
industry performance standards and is supported through a global network of
Garmin Aviation Distributors.

Direct-To

Proc

Wpt Info

Map

Traffic

Terrain

Weather

Nearest

Music

Utilities

System

About This Guide

Take a little time to review the various sections of this guide to familiarize

yourself with it. First, read Section 1 as an introduction to quickly get you started
with the GTN. The other sections are not meant to necessarily be read in order,
but provide detailed information on the subject they contain as you need them.
Do take the time to review the information before using the product to assist you
in getting the most out of your avionics.

Generally, a feature will be described in a section that provides a brief

description, a graphic functional diagram, and step-by-step procedures. If read
cover-to-cover sequentially, the information may seem repetitive. The guide is
designed as a reference where you will generally skip around the document
learning about a particular feature or function after becoming familiar with the
unit.

Messages

Symbols

Appendix

Index

xvi

Garmin GTN 625/635/650 Pilot’s Guide

190-01004-03 Rev. B

Conventions

The GTN display dynamically tailors the number and position of the controls

for each function and are engaged by merely touching them.

Touch Touch the key with your finger.
Drag Touch the list or location on the map with your finger. Continue

lightly holding your finger to the display surface and drag your
finger in the intended direction to scroll through the list or
move the location on the map.

In this pilot’s guide, keys are noted by bold text. An image of the key used

will be shown to the left of a procedure. Keys are outlined areas on the display.
Figures in the guide will identify the available controls. A key may have a name
of a control, such as Enter, Terrain, or Back. A key may also be an information
field, such as a numeric value that can be changed.

Graphic Of Key

Text Description

Of Key

Foreward

Getting
Started

Xpdr Ctrl

Com/Nav

FPL

Direct-To

Proc

Wpt Info

While viewing the Map Menu, touch the Terrain Map

Overlay key to toggle the view of Terrain data.

Graphic Of Key With
Numeric Value

When the Fuel on Board value is selected, touch the Fuel

Touching the Back key returns to the previous display. The

Cancel key cancels any information selected or entered and
returns to the previous display.

Text Description

Of Key

on Board key to display the Fuel on Board values.

List “Keys.” Touch To

Select.

Scroll Bar Indicates More

Selections Available.

Touch Finger To An Item

In The List And Drag Your

Finger To View More

Selections.

Selected Field Type

Map

Traffic

Terrain

Weather

Nearest

Music

Utilities

System

Messages

Symbols

Appendix

Index

Garmin GTN 625/635/650 Pilot’s Guide

xvii190-01004-03 Rev. B

Foreward

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Traffic

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Weather

Nearest

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Utilities

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Messages

Symbols

Appendix

Index

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Garmin GTN 625/635/650 Pilot’s Guide

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1 GETTING STARTED

Foreword

1.1 Model Descriptions

This guide covers the operation of the GTN 625, 635, and 650. In general, all

models will be referred to as the GTN 6XX, except where there are physical or
operational differences. The GTN 6XX units are approximately 6.25 inches wide
and 2.65 inches high. The display is a 600 by 266 pixel, 4.9 inch diagonal color
LCD with touchscreen controls. The units include one removable SD data card
for the databases and software upgrades.

The GTN 6XX simplifies your workload with an easy-to-use touch panel that

provides a visual display of both controls and functions. The required controls
are displayed for the selected function. Keys on the display allow you to access
and control their functions by a simple touch on the interactive display.

The GTN 6XX can integrate a variety of avionics that will not only simplify

operation, but also save panel space. The GTN 625, 635, and 650 have their
own GPS/SBAS navigator and flight planning functions. The GTN 635 adds a
VHF Com radio, while the 650 adds VHF Com and VHF Nav radios. Selected
optional external equipment allows you to display and control active traffic
systems, XM Entertainment Radio, XM Weather, audio panel, and a Mode S
transponder directly from the GTN 6XX display, and more.

1.1.1 GTN 625

Getting
Started

Xpdr Ctrl

Com/Nav

FPL

Direct-To

Proc

Wpt Info

Map

Traffic

Terrain

Weather

The GTN 625 has a GPS/SBAS engine and is TSO-C146c certified for

primary domestic, oceanic, and remote navigation including en route, terminal,
and non-precision approaches, and approaches with vertical guidance, such
as LPV and LNAV/VNAV. The GTN 625 can simultaneously give aviators vital
approach information and weather and traffic data in relation to their position
on a large, color moving map display. Thanks to a high-contrast color display,
the information can be easily read from wide viewing angles even in direct
sunlight. Its color moving map features a built-in database that shows cities,
highways, railroads, rivers, lakes, coastlines, and a complete Jeppesen database.
The Jeppesen database (that can be updated with a front-loading data card)
contains all airports, VORs, NDBs, Intersections, FSSs, Approaches, DPs/STARs,
and SUA information.

Garmin GTN 625/635/650 Pilot’s Guide

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Music

Utilities

System

Messages

Symbols

Appendix

Index

Foreword

Getting
Started

Xpdr Ctrl

Com/Nav

FPL

Direct-To

Proc

Wpt Info

Map

Traffic

Terrain

Weather

Pilots will enjoy the GTN 625 as a flexible and powerful navigator, especially

when it is coupled with traffic, lightning detection, and weather interfaces. With
the PC-based FDE prediction program, the GTN 625 may be used for oceanic
or remote operations. For the latest in graphic and text weather information,
the GTN 625 can interface to XM Satellite Radio’s XM Weather Service via the
Garmin GDL 69/69A datalink receiver.

1.1.2 GTN 635

The GTN 635 includes all of the features of the GTN 625, and also includes

a TSO’d airborne VHF communications transceiver.

1.1.3 GTN 650

The GTN 650 includes all of the features of the GTN 625, and also includes

a TSO’d airborne VHF communications transceiver and TSO’d airborne VOR/
Localizer and Glideslope receivers.

1.2 About This Pilot's Guide

1.2.1 Conventions

Bold text indicates a control. The small right knob is the smaller, inner knob

of the two concentric rotary knobs on the lower, right corner of the bezel. The

large right

knob is the larger, outer knob.

Large, Outer Knob

Small, Inner Knob

Nearest

Music

Utilities

System

Messages

Symbols

Appendix

Index

Figure 1-1 Large/Small Concentric Knobs

A graphic of a control on the side of the page refers to the control you should

use for the associated step as shown below.

1.2.2 Using the Touchscreen

Most of the controls are operated by touching the display. Highlighted icons

and keys may be simply touched to make a selection. A list of menu items may
be scrolled by touching the screen and retaining pressure while sliding your
finger up or down. Map displays may be panned by touching the screen and
retaining pressure while sliding your finger in the desired direction.

You can return to the previous page or exit the current function

by touching the Back key.

Quickly return to the Home page by pressing the HOME key.

Press and Hold the HOME key to reach the Default Nav page.

1-2

Garmin GTN 625/635/650 Pilot’s Guide

190-01004-03 Rev. B

1.3 Product Description

Foreword

This section provides an overview of the GTN 6XX product and a quick look

at some important features. The GTN 6XX presents a full-color moving map
with navigation information to the pilot through a large-format display. Controls
are a combination of rotary knobs and push-keys on the bezel with the color
display providing information as well as a touchscreen controls. The GTN 6XX
has a 600 x 266 pixel, 4.9 inch diagonal LCD display.

Volume, Squelch On/

Off, and Nav ID On/Off

SD Card

Message

Annunciation

And Key

Locking

Screw

Annunciations

Active Com/Nav

Frequency

Function

Keys

Home Page

Dual Rotary Knob

Function Hints

Figure 1-2 GTN 650 Front Panel

Standby Com/Nav

Frequency

HOME Key
Photo Sensor

Direct-To Key

Large and

Small Knobs

Xpdr Panel

Controls

1.3.1 Secure Data Card

Getting
Started

Xpdr Ctrl

Com/Nav

FPL

Direct-To

Proc

Wpt Info

Map

Traffic

Terrain

Weather

Nearest

The GTN 6XX uses a Secure Digital (SD) card to load and store various types

of data. For basic flight operations, the SD card is required for Terrain, Obstacle,
and SafeTaxi database storage as well as Jeppesen aviation database updates.

NOTE: Ensure the GTN 6XX is powered off before inserting or removing
an SD card.

NOTE: Refer to SD Card Use and Databases in the Appendix for instructions
on updating databases.

Garmin GTN 625/635/650 Pilot’s Guide

1-3190-01004-03 Rev. B

Music

Utilities

System

Messages

Symbols

Appendix

Index

Foreword

Getting
Started

Xpdr Ctrl

Com/Nav

FPL

Direct-To

Proc

Wpt Info

Map

Traffic

Terrain

Inserting an SD Card

1. Insert the SD card in the SD card slot (the label side of the card
should face the right edge of the display bezel).

2. To eject the card, gently press on the SD card to release the
spring latch.

1.3.2 Pilot Controls

The GTN 6XX controls have been designed to simplify operation of the
system and minimize workload and the time required to access sophisticated
functionality. Controls are located on the bezel and on the touchscreen display.
Controls are comprised of dual concentric knobs, volume/squelch knob, bezel
keys, and active touch areas on the display.

1.3.2.1 Volume/Squelch Knob

The Volume knob located in the top left corner of the bezel controls audio
volume for the selected Com radio or Nav receiver and other volume levels for
external audio input devices that are controlled via the GTN interface, if installed.
When the Com radio is active, press the Volume knob momentarily to disable
automatic squelch control for the Com radio. When the Nav radio is active, press
the Volume knob momentarily to enable/disable the ident tone for the Nav radio.

Weather

Nearest

Music

Utilities

System

Messages

Symbols

Appendix

Index

Figure 1-3 Volume/Squelch Knob

1.3.2.2 Large/Small Concentric Knobs

The large right and

small right

knobs are used for data entry, such as in the
Waypoint or Direct-To functions, and to set the frequencies for the communications
transceiver or the VOR/Localizer receiver in units so equipped.

Figure 1-4 Large/Small Concentric Knobs

1.3.2.3 HOME Key

Pressing the HOME key displays the Home page, the main screen for
accessing the GTN features. Pressing and holding the HOME key will open the
Default Navigation page from any other page.

Figure 1-5 HOME Key

1-4

Garmin GTN 625/635/650 Pilot’s Guide

190-01004-03 Rev. B

Figure 1-6 Home Page

Page Or Function Name

Touch The Key To

Access The Function

Touch Arrow Or Touchscreen

And Drag Finger To Scroll

Screen For More Keys

Foreword

Getting
Started

Xpdr Ctrl

Com/Nav

1.3.2.4 Direct-To Key

The Direct-To key provides access to the direct-to function, which allows you
to enter a waypoint and establishes a direct course to the selected destination.

Figure 1-7 Direct-To Key

Direct-To

Wpt Info

1.3.2.5 Touchscreen Keys

Touchscreen keys are placed around the display. The keys vary depending on
the page selected. Touch the key to perform the function or access the described

Traffic

information.

Terrain

Touch To View Menu Items

Touch To View Messages

Touch To View Previous Page

Touch To Select CDI Source

Figure 1-8 Touchscreen Key Control Example (Default Nav Page)

Touch To Toggle OBS

Weather

Nearest

Music

Utilities

FPL

Proc

Map

Garmin GTN 625/635/650 Pilot’s Guide

System

Messages

Symbols

Appendix

Index

1-5190-01004-03 Rev. B

Foreword

Getting
Started

Xpdr Ctrl

Com/Nav

FPL

Direct-To

Proc

Wpt Info

1.4 Unit Power Up

The GTN 6XX System is integrated with the aircraft electrical system and
receives power directly from electrical busses. The GTN 6XX and supporting
sub-systems include both power-on and continuous built-in test features that
exercise the processor, memory, external inputs, and outputs to ensure safe
operation.

1.4.1 Start-Up Screens

During system initialization, test annunciations are displayed. All system
annunciations should disappear typically within the first 30 seconds after
power-up. Upon power-up, key annunciator lights also become momentarily
illuminated on the GTN 6XX display bezel.

The splash screen displays the following information:

• Copyright

Map

Traffic

Terrain

Weather

Nearest

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Utilities

System

Messages

Symbols

Appendix

• DatabaseListandSystemversion

• InstrumentPanelSelf-Test

Current database information includes valid operating dates, cycle number,
and database type. When this information has been reviewed for currency (to
ensure that no databases have expired), the pilot is prompted to continue.
Databases that are not current will be shown in amber.

2 - SW & Database

Versions & Dates

Figure 1-9 System Startup Pages

3 - Panel Self-Test1 - Copyright

Index

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Garmin GTN 625/635/650 Pilot’s Guide

190-01004-03 Rev. B

1.4.2 Database Verification and Fuel Settings

1. When the System and Database Version page appears, check
to ensure databases are current. Then, touch Continue.

Software and GPS

Engine Versions

Check For Any

Messages

Figure 1-10 System Startup Pages

2. When the Instrument Panel Self-Test and Fuel Setting page
appears, check to ensure that the CDI/HSI outputs and
other displayed data are correct on the external interfaced
equipment.

Check To

Ensure

Required

Databases Are

Present And

Current

Touch To

Continue To

Home Page

Foreword

Getting
Started

Xpdr Ctrl

Com/Nav

FPL

Direct-To

Proc

Wpt Info

Map

3. Touch each of the Fuel value keys and set the appropriate
values as desired. Fuel capacity is shown in either gallons or
pounds as set in the Units feature of System mode.

Touch To Set
Current Fuel

Start-Up

Instrument

Panel Test

Conditions

Figure 1-11 Instrument Panel Self-Test & Fuel Settings Page

Quantity

Touch To Set
Fuel Flow

Touch To Continue
To Home Page

Traffic

Terrain

Weather

Nearest

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Utilities

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Messages

Symbols

Appendix

Index

Garmin GTN 625/635/650 Pilot’s Guide

1-7190-01004-03 Rev. B

Foreword

Getting
Started

Xpdr Ctrl

4. When the Fuel on Board value is selected, touch the Fuel on

Board key to display the Fuel on Board values. Touch the Full or
Tabs keys to display those values after they have been set.

Touch To

Display Fuel

Full Capacity

Touch To

Display Fuel

Tabs Capacity

Com/Nav

FPL

Direct-To

Proc

Wpt Info

Map

Traffic

Terrain

Weather

Nearest

Music

Utilities

System

Touch To Set

Fuel Full or Tab

Capacity

Touch To
Delete
Characters

Touch Keys

To Select Fuel

Capacity Values

Touch To
Accept Fuel on
Board Values

Selected Fuel

on Board

Capacity

Figure 1-12 Fuel On Board Page

5. Touch the Set Full/Tabs key to set the fuel values for Fuel
Full Capacity and Fuel Tab Capacity. After setting the fuel
values, touch the Back and then the Enter keys to return to
the Instrument Panel Self Test page.

Touch To

Set Fuel Full

Capacity

Touch To Return

To Fuel On

Board Display

Figure 1-13 Fuel Capacity Setup Page

Touch To
Set Fuel Tab
Capacity

Messages

Symbols

Appendix

Index

1-8

Garmin GTN 625/635/650 Pilot’s Guide

190-01004-03 Rev. B

6. On

the Instrument Panel Self Test page
key and then use the numeric keypad to set those values. Touch
the Enter key after selecting the Fuel Flow values.

Selected Fuel

Flow Value

Touch Keys To Select

Fuel Flow Values

Touch To Cancel

Selection And Return

To Previous Page

, touch the Fuel Flow

Touch To
Delete
Characters

Touch To
Accept Fuel
Flow Values

Foreword

Getting
Started

Xpdr Ctrl

Com/Nav

FPL

Figure 1-14 Fuel Flow Setup Page

7. After returning to the Instrument Panel Self-Test page and the
fuel values have been set, touch the Continue key to advance
to the Home page.

Figure 1-15 Home Page

Direct-To

Proc

Wpt Info

Map

Traffic

Terrain

Weather

Nearest

Music

Utilities

System

Garmin GTN 625/635/650 Pilot’s Guide

Messages

Symbols

Appendix

Index

1-9190-01004-03 Rev. B

Foreword

Getting
Started

Xpdr Ctrl

Com/Nav

FPL

Direct-To

1.5 System Operation

1.5.1 Using the Touchscreen Key Controls

Except for the knobs, the HOME key, and Direct-To key on the bezel, the
controls for the GTN 6XX are located on the display and activated by your
touch.

Touchscreen Keys -

Touch to Toggle Activation

Proc

Wpt Info

Map

Traffic

Terrain

Weather

Nearest

Music

Utilities

System

Messages

Back to

Previous Page

Touch to Zoom

In and Out

Figure 1-16 On-Screen Keys and Active Display Areas

1.5.2 Setup Page

GTN 6XX system settings are managed from the System page. The

following settings can be changed:

• SystemStatus

• GPSStatus

• ExternalLRUs

• Setup

• AlertsSettings

• UnitsSettings

• Audio

• OwnshipSymbol

• Backlight

Symbols

Appendix

Index

1-10

Garmin GTN 625/635/650 Pilot’s Guide

190-01004-03 Rev. B