GTN 625/635/650
Map
Traffic
GTN 625/635/650
Cockpit Reference Guide (CRG)
Terrain
Weather
Default NAV
Flight Plan
Procedures
Nearest
Waypoint Info
Services
Utilities
System
Warnings, Cautions, and Notes
ii
WARNING: Navigation and terrain separation must NOT be predicated upon
the use of the terrain function. The GTN 625/635/650 Terrain Proximity and
HTerrain 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.
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 625/635/650. 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WARNING: Do not use outdated database information.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 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 Pilots using an outdated database do so entirely at their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.
GTN 625/635/650 Cockpit Reference Guide (CRG)
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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: Do not use data link weather information for maneuvering in,
near, or around areas of hazardous weather. Information contained within
data link weather products may not accurately depict current weather
conditions.
WARNING: Do not use the indicated data link weather product age to
determine the age of the weather information shown by the data link weather
product. Due to time delays inherent in gathering and processing weather
data for data link transmission, the weather information shown by the data
link weather product may be significantly older than the indicated weather
product age.
WARNING: Never use datalinked 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.”
WARNING: For safety reasons, GTN 625/635/650 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 625/635/650 Pilot’s Guide as well as this
guide. Thoroughly practice basic operation prior to actual use. During flight
operations, carefully compare indications from the GTN 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.
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 GTN 625/635/650 utilize GPS as a
precision electronic NAVigation AID (NAVAID). Therefore, as with all NAVAIDs,
information presented by the GTN can be misused or misinterpreted and,
therefore, become unsafe.
190-01004-04 Rev. K
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iii
Warnings, Cautions, and Notes
Warnings, Cautions, and Notes
iv
CAUTION: The 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.
CAUTION: The GTN 6XX has a display that is coated with a special antireflective coating that is very sensitive to waxes and abrasive cleaners.
CLEANERS CONTAINING AMMONIA WILL HARM THE ANTI-REFLECTIVE
COATING. It is very important to clean the display using a clean, lint-free cloth
and an eyeglass lens cleaner that is specified as safe for anti-reflective coatings.
CAUTION: TFRs provided by datalink weather sources (i.e., FIS-B and
SiriusXM) are only advisory and do not replace a thorough preflight
briefing on TFR times and locations. Not all TFRs may be shown. To
determine accurate TFR information, verify with official sources, i.e.,
preflight planning or flight service center.
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.
NOTE: This product, its packaging, and its components contain chemicals
known to the State of California to cause cancer, birth defects, or reproductive
harm. This notice is being provided in accordance with California’s Proposition
65. If you have any questions or would like additional information, please
refer to our website at www.garmin.com/prop65.
NOTE: All visual depictions contained within this document, including screen
images of the GTN 625/635/650 bezel and displays, are subject to change
and may not reflect the most current GTN 625/635/650 software. Depictions
of equipment may differ slightly from the actual equipment.
NOTE: Depending on software version and configuration, GTN features
and screen images may differ from those shown in this manual. Refer to the
GTN 625/635/650 Pilot’s Guide (P/N 190-01004-03) for more information
on specific GTN software versions.
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.
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
NOTE: The GTN touchscreen may not respond to touch commands if
condensation or moisture accumulate on the touchscreen.
NOTE: Do not use SafeTaxi or Chartview functions as the basis for ground
maneuvering. SafeTaxi and Chartview functions do not comply with the
requirements of AC 20-159 and are not qualified to be used as an airport
moving map display (AMMD). SafeTaxi and Chartview are to be used by
the flight crew to orient themselves on the airport surface to improve pilot
situational awareness during ground operations.
NOTE: The FAA has asked Garmin to remind pilots who fly with Garmin
database-dependent avionics of the following:
•It is the pilot’s responsibility to remain familiar with all FAA regulatory
and advisory guidance and information related to the use of databases in
the National Airspace System.
•Garmin equipment will only recognize and use databases that are
obtained from Garmin or Jeppesen. Databases obtained from Garmin
or Jeppesen are assured compliance with all data quality requirements
(DQRs) by virtue of a Type 2 Letter of Authorization (LOA) from the FAA. A
copy of the Type 2 LOA is available for each database and can be viewed
at http://fly.garmin.com by selecting “Type 2 LOA Status.”
• Use of a current Garmin or Jeppesen database in your Garmin equipment
is required for compliance with established FAA regulatory guidance, but
does not constitute authorization to fly any and all terminal procedures
that may be presented by the system. It is the pilot’s responsibility to
operate in accordance with established AFM(S) and regulatory guidance
or limitations as applicable to the pilot, the aircraft, and installed
equipment.
NOTE: The pilot/operator must review and be familiar with Garmin’s
database exclusion list as discussed in SAIB CE-14-04 to determine what
data may be incomplete. The database exclusion list can be viewed at
www.flygarmin.com by selecting “Database Exclusions List.”
NOTE: The pilot/operator must have access to Garmin and Jeppesen
database alerts and consider their impact on the intended aircraft
operation. The database alerts can be viewed at www.flygarmin.com by
selecting “Aviation Database Alerts.”
190-01004-04 Rev. K
GTN 625/635/650 Cockpit Reference Guide (CRG)
v
Warnings, Cautions, and Notes
Warnings, Cautions, and Notes
NOTE: If the pilot/operator wants or needs to adjust the database, contact
Garmin Product Support.
vi
NOTE: Garmin requests the flight crew report any observed discrepancies
related to database information. These discrepancies could come in the
form of an incorrect procedure; incorrectly identified terrain, obstacles and
fixes; or any other displayed item used for navigation or communication in
the air or on the ground. Go to FlyGarmin.com and select “Aviation Data
Error Report.”
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
Record of Revisions
Part Number
190-01004-04
190-01004-04 Rev. K
Revision
A
B
C
Date
Feb 2011
Mar 2011
Mar 2011
D
E
F
G
H
J
K
Nov 2012
Feb 2013
Oct 2013
Aug 2014
Jul 2015
Jan 2016
Sep 2016
Description
Initial Release.
Updated message list.
Updated part number on back cover
only.
Added v3.00 functionality.
Added v4.00 functionality.
Added v5.00 functionality.
Added v5.11 functionality.
Added v6.00 functionality.
Added v6.10 functionality.
Added v6.20 functionality.
GTN 625/635/650 Cockpit Reference Guide (CRG)
vii
Table of Contents
INTRODUCTION.................................................................................................. 1
Direct-To Navigation..................................................................................................................... 2
NAV/COM RADIO............................................................................................... 3
Touchscreen Entry........................................................................................................................ 3
Selecting a NAV/COM Frequency using Rotary Knobs.................................................................... 4
Frequency Flip/Flop....................................................................................................................... 4
Voice Commands.......................................................................................................................... 4
TRANSPONDER.................................................................................................. 5
Transponder Control..................................................................................................................... 5
Special Squawk Codes.................................................................................................................. 6
MAP................................................................................................................... 7
Changing User Fields.................................................................................................................... 8
Pan Mode.................................................................................................................................... 9
User Waypoints............................................................................................................................ 9
Creating (or Editing) a Flight Plan in Pan Mode........................................................................... 10
TRAFFIC........................................................................................................... 11
Traffic System Status Annunciations............................................................................................ 12
TCAS - System Menu.................................................................................................................. 13
TCAD - System Menu.................................................................................................................. 14
ADS-B Traffic.............................................................................................................................. 15
TERRAIN........................................................................................................... 17
WEATHER......................................................................................................... 19
SiriusXM® Weather (Optional)..................................................................................................... 19
FIS-B Weather............................................................................................................................ 20
Stormscope® Weather (Optional)................................................................................................ 21
Connext Weather (Optional)....................................................................................................... 22
DEFAULT NAV................................................................................................... 23
FLIGHT PLAN.................................................................................................... 24
Creating a Flight Plan................................................................................................................. 24
Airways...................................................................................................................................... 25
Airway Selection for Waypoint..................................................................................................... 25
Flight Plan Menu........................................................................................................................ 26
PROCEDURES................................................................................................... 27
Flying the Missed Approach........................................................................................................ 28
Flying an Approach with a Hold.................................................................................................. 28
NEAREST.......................................................................................................... 29
WAYPOINT INFO.............................................................................................. 30
SERVICES......................................................................................................... 32
Phone........................................................................................................................................ 32
viii
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Music......................................................................................................................................... 33
Position Reports......................................................................................................................... 34
Contacts.................................................................................................................................... 35
UTILITIES.......................................................................................................... 36
Vertical Calculator (VCALC)........................................................................................................ 37
SYSTEM............................................................................................................ 38
Crossfill...................................................................................................................................... 39
Connext Setup - Flight Stream 210 and 510................................................................................ 41
Pairing a Device.......................................................................................................................... 42
Connext Operation with Flight Stream 210 and 510.................................................................... 42
Connext Setup - Other Bluetooth Devices.................................................................................... 44
SYMBOLS......................................................................................................... 45
Map Symbols............................................................................................................................. 45
SafeTaxi™ Symbols.................................................................................................................... 46
Traffic Symbols........................................................................................................................... 46
Terrain Obstacle Symbols............................................................................................................ 48
HTAWS Obstacle Symbols........................................................................................................... 49
Basemap Symbols....................................................................................................................... 49
Miscellaneous Symbols............................................................................................................... 50
Stormscope® Symbols............................................................................................................... 51
Map Tool Bar Symbols................................................................................................................ 51
MESSAGES....................................................................................................... 53
GLOVE QUALIFICATION PROCEDURE............................................................... 77
Tests Required for Glove Qualification .................................................................................. 78
Tests Not Required for Glove Qualification.................................................................................. 79
TELLIGENCE VOICE COMMAND QUALIFICATION PROCEDURE......................... 80
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INTRODUCTION
Active Com/Nav Standby Com/Nav
Frequency
Frequency
Volume, Squelch On/
Off, and Nav ID On/Off
Function
Keys
Home Page
HOME Key
Photo Sensor
Datacard
Message
Annunciation
And Key
Direct-To Key
Large and
Small Knobs
Locking
Screw
Annunciations
Dual Rotary Knob
Function Hints
Xpdr Panel
Controls (opt)
GTN 650 Front Panel/Main Page
Direct-To Key - Press to provide a direct course to a selected
waypoint.
Home Key - A single press of the Home Key returns the user
to the main page to access features. Pressing and holding the
HOME key while on any page will display the default NAV page.
Volume and Squelch Knob - Controls volume of the COM and
NAV radios. Press to use the IDENT function of the NAV radio.
Pressing and holding the volume knob will change the frequency
to emergency frequency.
Large and Small Knobs - Both are rotary knobs. The small
knob can be pressed and held in to flip-flop COM and NAV
frequencies.
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GTN 625/635/650 Cockpit Reference Guide (CRG)
1
Introduction
This cockpit reference guide (CRG) is intended to serve as a quick reference
covering the basic features and operating procedures for the GTN 625/635/650.
For detailed descriptions of any information found in this guide, refer to the
latest revision of the GTN 625/635/650 Pilot’s Guide, P/N 190-01004-03 found at
www.garmin.com.
Introduction
Direct-To Navigation
OR
Press the Direct-To key to quickly navigate from your present position directly
to a selected waypoint, flight plan waypoint, or nearest airport.
Direct-To a Waypoint
1. Press Direct-To.
2. Touch the Waypoint Identifier field and select the characters for the
desired waypoint with the large and small right knobs or the touch
keypad.
3. Touch Activate or press the small right knob. Text near the small right
knob indicates its current function.
Direct-To a Flight Plan Waypoint
OR
1. Press Direct-To.
2. Touch the FPL tab and then the desired Flight Plan waypoint.
3. Touch Activate or press the small right knob.
Direct-To a Nearest Airport
OR
1. Press Direct-To.
2. Touch the NRST APT tab and then the desired airport from the Nearest
Airport list. Touch the Up or Down keys as needed to show more of the list.
3. Touch Activate or press the small right knob.
Direct-To a User-Defined Hold
1. Press Direct-To and the touch Hold.
2. Touch the Course key and use the keypad to select the course.
3. Touch the Course Direction key to select inbound/outbound direction
and then the Turn key to select the turn direction.
4. Touch the Leg Type key to select time/distance and then touch the Leg
Time or Leg Distance key and use the keypad to select the leg length.
5. Touch the Expect Further Clearance key and use the keypad to select
the reminder time.
6. Touch the Load Hold key then the Hold Activate key.
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NAV/COM RADIO
NOTE: The GTN 625/635/650 are all GPS/SBAS navigators. In addition, the
GTN 635 has COM functionality and the GTN 650 has COM/NAV functionality.
Active NAV
Frequency
Standby NAV
Frequency
Nav Frequencies In The
Database Will Display
The Ident Based on GPS
Position
Standby COM
Frequency
COM and NAV Radio Frequencies
Touchscreen Entry
G
NOTE:
designates functions that are accomplished by touching.
Cyan colored keys represent fields that can be modified, white colored keys
represent keys that change the state of operation for the related feature.
The COM or NAV frequency is changed by touching the STBY window and
using the keypad to enter the desired frequency. Touch Enter when finished or
Back to exit without making changes. If an entry was started, touch Cancel to
exit out of the screen without making changes.
G
COM Standby Screen
Mon: Monitors the standby COM frequency.
Find: Displays categories for User, Recent, Nearest, and Flight Plan
frequencies.
Xfer: Automatically enters the frequency to the active COM or NAV frequency
window.
NOTE: The NAV Standby screen is identical to the COM Standby screen except
that there is no MON key.
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3
GPS/NAV/COM
Active COM
Frequency
Identifier and Type Shown
for the Selected Frequency
Selecting a NAV/COM Frequency using Rotary Knobs
GPS/NAV/COM
Press the center of the small right knob to change from the COM frequency
display to the NAV frequency display.
1. Turn or momentarily press the small knob once to highlight the STBY field
of COM or NAV. The knob function defaults to COM after 30 seconds of
inactivity.
2. Turn the large knob to the desired MHz value.
3. Turn the small knob to the desired kHz value.
4. Press the small knob to confirm entry.
Frequency Flip/Flop
To flip/flop the active and standby NAV/COM frequencies, press and hold the
small knob or touch the active NAV/COM frequency field. An annunciation,
Hold for Flip-Flop, will be displayed near the knobs.
Voice Commands
If a GMA 350 is connected to the GTN, voice commands may be available. Refer
to GTN 6XX/7XX Telligence Voice Command Guide, P/N 190-01007-50.
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GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
TRANSPONDER
Transponder Control
Active
Transponder
Transponder Mode
Transponder ID
Touch the Squawk Code Field to enter frequency for either Transponder 1
(XPDR1) or Transponder 2 (XPDR2).
IDENT
Touch IDENT to activate the transponder’s IDENT function. The key text
remains gray and will change to green when IDENT mode is active.
Current
Mode of
Transponder
Transponder Panel Page (Non-GDL 88 Installations with Mode C Transponder)
Standby: Touch to place transponder in Standby mode. It is still
powered, but will not transmit information. STBY displays in the
squawk code field.
Ground: Touch to place transponder in Ground mode. Refer to the
documentation provided with your GTX transponder for specific
information on this mode of operation.
On: Touch to turn transponder On for Mode A operation. Will
transmit the squawk code when interrogated. ON displays in
the squawk code field.
Altitude Touch for Mode C operation. The transponder will be on and
Reporting: will transmit its squawk code and altitude when interrogated.
ALT displays in the squawk code field.
VFR: Touch to set the squawk code to 1200.
Enable ES: Touch to toggle extended squitter.
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GTN 625/635/650 Cockpit Reference Guide (CRG)
5
Transponder
G
Squawk Code Field
Special Squawk Codes
The selected squawk code will always be in use. As you change a squawk code,
the original code will be sent until you are finished selecting the new code.
The table below lists special squawk codes:
Transponder
Squawk Code
1200
7500
7600
7700
Description
Default VFR code in the USA
Hijacking
Loss of Communications
Emergency
Special Squawk Codes
6
NOTE: While 1200 is the default VFR squawk code, the installer can configure
any code to the VFR key. This is to support international operations where
1200 may not be used.
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
MAP
G
Map
Map
Map Page
G
G
Touch to select the overlays
(Terrain, TOPO, Airways,
NEXRAD, and Traffic) that are
displayed on the map page.
Map Menu
Touch to select the map,
aviation, land, traffic, and
weather items that are
displayed on the map page.
Touch, hold and
slide to set how
much detail is
shown on the map
page.
Touch to select the fields
that are displayed in the four
corners on the Map Screen.
Touch to restore the user fields
to Garmin factory defaults.
Map Menu Options
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7
Changing User Fields
The data fields located at each of the four corners of the Map page can be
configured to display any combination of four different navigation parameters.
To exit without changes to the Map page, touch Cancel.
Map
G
G
G
Change NAV Data Fields
Touch To Select Data Field
(TRK Currently Shown)
Touch To Select Data Field
(DIS Currently Shown)
Touch To Cancel Any Changes
Change NAV User Field Mode
Field Type List. Touch To
Select Data Field
Touch To Select
Data, Function,
or Page
Slider Indicates More
Selections Available. Press
Finger and Slide To View
More Selections.
Select User Fields Page
8
GTN 625/635/650 Cockpit Reference Guide (CRG)
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Pan Mode
NOTE: Annunciations for TIS Traffic Coasting or Traffic Removed are not
present while in pan mode. For more information refer to page 11.
User Waypoints
Touch any location on the map that is not an existing waypoint to create a
user waypoint. The Waypoint Info key will display, “Create Waypoint” and
will display the “Create User Waypoint” page. See the “Waypoint Info, Creating
User Waypoint” section.
Waypoint Info Key
Next
Key
Back
Key
Touch to create or edit flightplan.
Cursor
To enter or edit a flight plan, touch the Graphically Edit FPL key. To leave
Pan Mode, touch the Back key.
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9
Map
To enter Pan Mode, touch the map anywhere on the Map page. Drag your
finger across the map to move it as desired. In Pan Mode, touch any symbol on
the map to highlight, then touch the information key to display any available
information related to that symbol. Touch the Next key to cycle to other
waypoints close to the cursor.
Creating (or Editing) a Flight Plan in Pan Mode
Map
NOTE: It is not possible to graphically add an intermediate waypoint between
the current position and a direct-to waypoint unless that waypoint is in the
flight plan. Garmin recommends deleting any flight plan prior to graphically
editing a direct-to waypoint.
While in Pan Mode, touch the Graphically Edit FPL key to add/remove
waypoints and/or alter a course line in an existing flight plan. You can also enter
or edit an existing flight plan by touching the Flight Plan key on the home page.
See the Flight Plan section of this guide.
G
Edit Flight Plan
On the Map page, enter Pan Mode by touching the screen. Touch the
Graphically Edit FPL key. Touch any waypoint that you want to be part of
your flight plan. You also can touch and drag a flight plan line to a waypoint.
Should you make an error, touch the Undo key. The Undo key will reverse up
to the last nine consecutive edits. When finished, touch the Done key to save
your changes. Touch Cancel to leave the page without making any changes
to the flight plan.
Touch to leave the page Undo
without changes to the
Key
flight plan.
Touch to confirm the
entries into the flight plan.
Flight Plan on Map Page
10
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TRAFFIC
G
Traffic
NOTE: Depending on which traffic device is installed and how it is configured,
the pages will be different than what is shown. Refer to the GTN 625/635/650
Pilot’s Guide, P/N 190-01004-03, for more information.
Traffic
Touch to activate
testing mode.
Touch to select Traffic
Mode. Selections are:
Operate and Standby.
Touch to select the
altitude filter. Selections
are: Normal, Above,
Below, or Unrestricted.
Traffic Page
Traffic Page Options
Altitude Mode
Below
Normal
Above
Unrestricted
Displayed Traffic Range
-9900 ft to 2700 ft
-2700 ft to 2700 ft
-2700 ft to 9900 ft
All Traffic Shown
The Test key places the traffic system in test mode. Not all traffic systems
support Test mode. There are no menu options for the traffic page.
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11
Traffic System Status Annunciations
For annunciation symbols, refer to the section, “Symbols.”
TIS Failure Annunciations
Traffic Page
Annunciation
No Data
Traffic
Failed
Unavailable
Description
Data is not being received from the transponder.
The transponder has failed.
TIS is unavailable or out of range.
TIS Traffic Status Annunciations
Traffic Status
Banner
Annunciation
Description
The displayed data is not current (6 to 12 seconds since
last message).
Traffic Coast 9 SEC
The quality of displayed traffic information is reduced
when this message is displayed.
Traffic is removed because it is too old for coasting (12 to
60 seconds since last message).
Traffic Removed
Traffic may exist within the selected display range, but it
is not displayed.
TAS Traffic Status Annunciations
Traffic Status
Banner
Annunciation
TA 6.0 + 03 ↓
Failed
Data Fail
No Data
12
Description
System cannot determine bearing of Traffic Advisory.
Annunciation indicates distance in NM, altitude
separation in hundreds of feet, and altitude trend arrow
(climbing/descending).
Traffic data has failed.
Data is being received from the transponder, but a failure
is detected in the data stream.
Traffic has not been detected.
GTN 625/635/650 Cockpit Reference Guide (CRG)
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TCAS - System Menu
Touch the Menu key to view the Traffic menu.
Key
ADS-B Status
TCAS Status
Test
Motion Vector
Vector Duration
Altitude Filter
Description
Displays the status of the ADS-B.
Touch to set TCAS into operating mode or standby mode.
The Test key places the traffic system in test mode and
also tests the communication between the GTN and the
configured traffic device.
Touch to set the type of motion vector. Selections: Absolute,
Relative, Off
Touch to set the time used to calculate the motion vector
length. Selections: 30 sec, 1 min, 2 min, 5 min.
Touch to select what traffic to display. Selections: Below,
Normal, Above, Unrestricted
Altitude Filter
The table below defines the displayed traffic ranges for each altitude filter
setting.
Altitude Filter
Below
Normal
Above
Unrestricted
190-01004-04 Rev. K
Displayed Traffic Range
-9900 ft to 2700 ft
-2700 ft to 2700 ft
-2700 ft to 9900 ft
All Traffic Shown
GTN 625/635/650 Cockpit Reference Guide (CRG)
13
Traffic
Traffic Menu
TCAD - System Menu
The TCAD Control Menu allows control over the settings for the TCAD Traffic
display.
G
Traffic
TCAD Control
Menu
Touch to set
local baro.
Touch to select
field elevation.
Touch to set
traffic audio
volume.
Touch to
activate
operation.
Touch to select
ground mode.
Touch to select
approach mode.
TCAD Traffic and Control Menu Control
14
GTN 625/635/650 Cockpit Reference Guide (CRG)
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ADS-B Traffic
Select a traffic target on the dedicated traffic page to obtain additional
information about the traffic target or to view all targets in a grouped target.
When a grouped target is selected, the Next key on the dedicated traffic page
will cycle through all targets located in close proximity to where the screen has
been touched.
ADS-B and TCAS
Status and Altitude
Filter
Proximity Advisory,
1200 ft Above and
Climbing
Touch To View
Traffic Menu
Traffic
Map
Orientation
Selected
Traffic Info
Range Rings
Selected Vector
Motion and Duration
Range Ring
Radius
Touch For
Next Target
Traffic Direction
Ownship Of Travel
Icon
ADS-B Traffic Page
ADS-B Traffic Menu
The Traffic Menu allows control of the traffic information display.
G
G
Select TCAS Status:
Operate and Standby
Select ADS-B Status:
Off, Surface, or
Airborne
Select Motion Vector:
Absolute, Relative, Off
Touch To Perform
Traffic Test
Select Altitude Filter:
Normal, Above, Below,
Unrestricted
Select Vector Duration:
30 sec, 1 min, 2 min,
5 min
ADS-B Traffic Menu
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15
Motion Vector
When Absolute Motion Vectors are selected, the vectors extending from the
traffic targets depict the target reported track and speed over the ground. When
Relative Motion Vectors are selected, the vectors extending from the traffic targets
display how the traffic target is moving relative to your aircraft. The length of each
Motion Vector depicts the projected distance its associated target will travel in the
amount of time selected in “Vector Duration.”
Traffic
NOTE: Absolute motion vectors are colored either white or cyan. Relative
motion vectors are always green. The annunciation on the bottom of the
traffic page indicates vector type and length.
ADS-B and TCAS Status
and Altitude Filter
Map
Orientation
Touch To View
Traffic Menu
Traffic Motion
Vector (White)
Selected Vector
Motion and
Duration
Selected
Traffic Info
Touch For
Next Target
Absolute Motion (White Vectors)
ADS-B and TCAS Status Traffic Motion
and Altitude Filter Vector (Green)
Map
Orientation
Touch To View
Traffic Menu
Selected Vector
Motion and
Duration
Selected
Traffic Info
Touch For
Next Target
Relative Motion (Green Vectors)
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190-01004-04 Rev. K
TERRAIN
NOTE: Features may vary, depending on your configuration. For the terrain
scale, refer to the “Symbols” section at the end of this guide.
G
Terrain
Heading Annunciation
Obstacles
Terrain
Aircraft GSL Value
(GPS Derived)
Terrain Overlay
Terrain Legend Active Flight Plan Leg
Terrain Type
Terrain Page
G
G
Terrain Menu
Touch to display terrain as
a 360° ring or a 120° arc.
Touch to display the
active flight plan.
Touch to display
the terrain legend.
Touch to suppress
TAWS alerts.
Touch to test
the TAWS system.
TAWS Terrain Menu Options
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17
Terrain
Touch to display terrain as a
360° ring or a 120° arc.
Touch to toggle
Reduce Protection
(RP) mode on and
off.
Touch to display the Touch to display the
terrain legend.
active flight plan.
Touch to
deactivate
aural and
visual alerts.
Touch to test
HTAWS system.
HTAWS Terrain Menu Options
18
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WEATHER
NOTE: Features may vary, depending on your configuration. Refer to the
GTN 625/635/650 Pilot’s Guide, P/N 190-01004-03 for more information.
G
Weather
SiriusXM Weather (Optional)
®
Weather
G
G
G
SiriusXM Weather Menu
Touch to select
orientation. Selections
are: Heading Up, Track
Up, and North Up.
Touch to select
the NEXRAD type.
Selections are: Off,
US, and Canada.
Touch to
enable or
disable
layers.
Touch to toggle
display of
the weather
legend.
Touch to scroll to
Green bar indicates that selection is
enabled and will be displayed on map. view the remaining
selections.
SiriusXM Weather Menu Options
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19
FIS-B Weather
G
G
G
FIS-B Weather Menu
Touch NEXRAD key to select
Off, US, or Canada NEXRAD.
Weather
Touch to select the
weather overlay map
orientation.
Touch to display
the legend.
Touch keys to select
weather product.
Green bar indicates
selected product.
FIS-B Weather Menu Options
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GTN 625/635/650 Cockpit Reference Guide (CRG)
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Stormscope® Weather (Optional)
NOTE: Refer to the WX-500 Pilot’s Guide for a detailed description of the
WX-500 Stormscope.
G
G
G
Stormscope Weather Menu
Weather
Displays Stormscope as
360° ring or 120° arc.
Touch to select
operating mode.
Stormscope Menu Options
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Connext Weather (Optional)
G
G
G
Weather
Connext Weather Menu
Connext Weather Menu Options
Key
PRECIP
Lightning
IR Satellite
METAR
PIREP
Winds Aloft
SIGMET/AIRMET
Connext Settings
Orientation
Legend
22
Description
Touch to toggle the display of precipitation.
Touch to toggle the display of lightning.
Touch to toggle the display of IR satellite information.
Touch to toggle the display of METARs.
Touch to toggle the display of PIREPs, Winds Aloft, and
SIGMETs/AIRMETs.
Touch to toggle the display of PIREPs, Winds Aloft, and
SIGMETs/AIRMETs.
Touch to toggle the display of PIREPs, Winds Aloft, and
SIGMETs/AIRMETs.
Touch to set region of coverage, data request and to
view the status of the datalink.
Touch to display map orientation options. North Up,
Track Up, or Heading Up.
Touch to display the legend of weather information.
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190-01004-04 Rev. K
DEFAULT NAV
G
Default NAV
Data Fields
Default NAV
Default Navigation Page
G
G
Touch to Configure
the User Fields
Touch Restore the
Default User Fields
Default Navigation Menu
The data field selections are the same as listed in the “Changing Data Fields”
section in the Map section.
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23
FLIGHT PLAN
G
Flight Plan
Creating a Flight Plan
On the Flight Plan page, touch “Add Waypoint” to display an alphanumeric
keypad. Type in the airport identifier and touch Enter. If unknown, touch the
Find key to search. To exit without making changes to the flight plan, touch the
Cancel key.
G
G
Active Flight Plan
Backspace
Alphanumeric
String
Touch to select
group of letters.
Touch to select
individual letter of the
group.
Keypad Entry
Sample Flight Plan
24
NOTE: Do not save flight plans that have modified procedures as this may
produce undesireable results.
GTN 625/635/650 Cockpit Reference Guide (CRG)
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Airways
On the Active Flight Plan page, touch Add Waypoint and select a VOR. For
example, UBG.
G
Touch the waypoint and the Waypoint Options menu is displayed.
Active Flight Plan
Load Airway: Touch entry waypoint to select available airways and exit
waypoints.
Load: Touch to load selected airway into flight plan.
Cancel: Touch to exit without changes to flight plan.
Remove Airway: Touch to remove airway from flight plan. Touch Preview (if desired) to review selected airways.
Touch to
load selected
airway to
flight plan.
Airway Selection for Waypoint
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25
Flight Plan Menu
G
G
Flight Plan Menu
Touch to
store flight
plan.
Touch to
delete
current
flight plan.
Touch to view
previously
stored flight
plans.
Touch to
reverse
currently
loaded
flight plan.
Active Flight Plan
Touch to
preview
flight plan.
Touch to set up parallel
track for flight plan.
Touch to edit fields shown
on flight plan page.
Flight Plan Menu Page
G
G
Flight Plan Catalog
Touch to activate a
flight plan.
Touch to activate and
reverse flight plan.
Touch to review flight plan
prior to loading.
Touch to edit flight plan.
Touch to delete flight plan.
Touch to copy flight plan.
Route Options for Flight Plans
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PROCEDURES
G
Procedures
Departures, Arrivals, and Approaches
On the Procedures (PROC) page, you are able to select approach, arrival, and
departure procedures.
Touch to enter
departure.
Touch to activate
available approaches.
Procedures
Touch to
enter arrival.
Touch to enter approach.
Procedures (PROC) Page
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27
Flying the Missed Approach
In event of a missed approach, the GTN 6XX unit continues to give guidance
along an extension of the final course segment (FAF to MAP) until you manually
initiate the missed approach procedure (as mentioned in reference to the “SUSP”
advisory).
NOTE: If the unit is not configured for a CDI key, then the “Activate GPS Missed
Approach” will only resume automatic waypoint sequencing. The user must
switch to GPS navigation, if desired, by using their external source selection
method (this is typical an EFIS system).
Procedures
1. When the MAP is reached, a pop-up will appear.
Pop-Up Upon Reaching the MAP
2. Touch the Remain Suspended key to continue with sequencing
suspended or touch Activate GPS Missed Approach for guidance to
the Missed Approach Hold Point.
Flying an Approach with a Hold
The Flight Plan Page displays a timer or distance, as appropriate, during the
holding pattern. Use this timer or distance to fly the outbound portion of the
holding pattern. The holding pattern is displayed on the Map Page and indicated
as the active leg on the Active Flight Plan pages.
28
NOTE: If you need to lose extra altitude or speed by going around the holding
pattern again, touch SUSP to manually suspend waypoint sequencing BEFORE
crossing the holding waypoint the second time. If you’ve already passed this
waypoint, re-activate the holding pattern leg.
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
NEAREST
G
Nearest Page
Touch to display the bearing, distance, approach/runway information of
the nearest airport.
Touch to display the bearing and distance to the nearest intersection.
Touch to display the bearing, distance, and frequency of the nearest VOR.
Nearest
Touch to display the bearing and distance to the nearest visual reporting
point.
Touch to display the bearing, distance, and frequency of the nearest NDB.
Touch to display the bearing and distance of a user created waypoint.
Touch to display the bearing and distance of the nearest airspace.
Touch to display the bearing, distance, and frequency of the nearest ARTCC.
Touch to display the bearing, distance, and frequency of the nearest Flight
Service Station.
Touch to display the bearing, distance, and frequency of the nearest
weather station.
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29
WAYPOINT INFO
G
G
Waypoint Info Page
Touch to display map of the airport, procedures, runways,
frequencies, weather, and any NOTAMs.
Touch to display distance and bearing, latitude and longitude,
location and the nearest VOR.
Waypoint Info
Touch to display distance and bearing, latitude and longitude,
location, frequency, nearest airport, VOR Class, and magnetic
variation.
Touch to display the distance and bearing, latitude and longitude,
location, and the nearest airport.
Touch to display distance and bearing, latitude and longitude,
location, frequency, nearest airport, and marker description.
Touch to display distance, bearing, and reference waypoint information
for created waypoints.
Touch to create permanent or temporary waypoints. Items such as user
identifier, comments, position type, reference waypoint, radial, and
distance can be configured.
Touch to import user waypoints from the datacard.
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GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
Creating a User Waypoint
G
Create Waypoint
1. Touch the Create Waypoint icon. If there are no user waypoints defined,
the prompt, “No User Waypoints exist. Create User Waypoint?” will be
displayed. Touch OK to continue.
2. Enter the desired name (identifier) and position, or reference another
waypoint by radial and distance. The identifier can be a maximum of 6
characters and the comment can be a maximum of 24 characters.
3. Touch Create to confirm your entry.
Preview
Touch
to exit
without
creating
waypoint.
Touch to
create a
temporary
waypoint.
Position Type
Touch to
confirm entry.
Create User Waypoint Screen
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31
Waypoint Info
Waypoint
Name
Waypoint
Comment
SERVICES
G
Services
Touch
to send
an SMS
text.
Touch to
listen to
music.
Touch to
activate
phone.
Touch to
review
position
report
settings.
Touch to
view your
contacts.
Services Page
Phone
Touch to end call.
Phone Status
Services
Touch to enter
pohne number.
Touch to increase
and decrease volume.
Touch to place
call to entered
phone number.
Touch to
select type of
suppression.
Choices are Off,
On, On During
APR/MAPR/TERM.
Phone Page
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Placing a Call
1. Touch the Phone key to display the phone page.
2. Touch the Phone Number key to display a phone keypad.
3. Touch the Contacts key to enter a saved phone number or enter the
phone number using the keypad. Touch Enter.
4. Touch the Call key.
5. Touch the End Call key when finished.
Sending an SMS Text
1.
2.
3.
4.
Touch the SMS Text key to display the SMS text page.
Touch the To window to select recipient’s email address or phone number.
Touch the Compose key to bring up the keypad.
When finished, touch the Send key to send the message.
Music
Touch to see
the status of the
GDL69 and list
of subscribed
products.
Touch to select
channel.
Touch to browse
categories.
Touch to adjust
volume or mute.
Touch to change
channels manually.
Presets Key
Services
Music Page
Selecting a Channel
1. Touch the CH Number key to display a numeric keypad.
2. Touch numbers of the channel number.
3. Touch Enter to accept channel.
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33
Adding Channels to Presets
1. Touch the Presets key. The choices are XM1, XM2, and XM3.
2. Touch the Channel key and enter in the desired channel.
3. Touch and hold the key of the preset where you want to store the channel
for three seconds. The key in the Preset Channel Bar will store the
channel.
4. Follow the same steps to override a currently stored channel. To clear
presets, change Channel to 0 and touch all presets until all read 0.
Position Reports
G
Status Window
Touch to activate
automatic
reporting.
Touch to enter frequency of
reporting. Range is 2 to 60
minutes.
Touch to
send position
report.
Services
Position Reports Page
Position Reporting
1. Touch the Position Reports key.
2. Touch the Automatic Reporting key to enable reporting of position
automatically.
3. After automatic reporting is enabled, touch the Report Period key to
display the keypad and enter the frequency of reporting.
4. Touch the Enter key to confirm your selection.
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Contacts
Touch to add name,
phone number, and email
address of a contact.
Touch to search
for a previously
entered contact.
G
Current list of
contacts.
Contacts Page
Adding a Contact
1. Touch the Add key to display the Add Contact menu.
2. Touch the Name key to enter the contact name (required).
3. Touch the Phone Number key to enter the contact phone number
(optional).
4. Touch the Email Address key to enter the contact email address
(optional).
5. Touch the Save Contact key to save entry to list. The list can hold 250
entries.
Editing a Contact
Deleting a Contact
1. In the contact list, touch the contact that you wish to delete.
2. Touch the Delete key.
3. Touch the OK key to delete contact. Touch the Cancel key to not make
any changes to contact in list.
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35
Services
1. In the contact list, touch the contact that you wish to edit.
2. Touch the Edit key to display the current contact formation.
3. Touch the information that you want to edit. When you’re finished, touch
Save Contact key. Touch the Back key at any time to leave the contact
unchanged.
UTILITIES
G
Utilities
G
Utilities
Utilities Page
Touch to enter VCALC profile.
See, “VCALC Profile” for
more information.
Touch to view fuel
information about the
currently loaded flight plan.
Touch to access timers. Generic
Timer (count up or down), Flight
Timer (set trigger to In Air or
Power On), and Departure Time.
Touch to view calculations
of density altitude, true
airspeed, and wind.
Touch to see the integrity
of GPS satellite coverage at
a particular waypoint at a
particular time.
Touch to create or manage
scheduled messages (e.g.,
“Change oil,” “Switch fuel
tanks,” etc).
Touch to view trip
information about the
currently loaded flight plan.
Touch to safely clean the
screen. Press the HOME key
to exit cleaning mode.
Touch to view and use
checklist information.
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Vertical Calculator (VCALC)
The VCALC page uses GPS position, GPS computed altitude, and pilot-selected
parameters to calculate and display the time to begin descent and vertical speed
required to reach a desired altitude above a designated waypoint offset. The
screenshot below is a sample profile for an aircraft to be at 2500 feet MSL 4 NM
before KRNO. Since the vertical speed is set to 400 feet per minute, the descent
needs to begin in 4 minutes and 51 seconds. At the present location, a vertical
speed rate of -21 feet per minute is required to reach the target. There are no
menu options for the VCALC Profile page.
G
G
Touch to set
target altitude.
VCALC Key
Touch to
select Before
or After
waypoint.
Touch to select
altitude type,
MSL or Above Touch to enter
vertical speed
WPT.
Touch to
enter distance
offset from
target
waypoint
NOTE: The Altitude Type key will not be available when the VCALC target waypoint
does not have valid altitude data.
Touch to reset
the target
altitude, altitude
type, VS profile,
and offset fields.
Touch to show
messages related to
the VCALC profile on
the message page.
VCALC Profile Menu Options
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37
Utilities
Touch to select
Status of Profile
Vertical Speed Required waypoint.
VCALC Page
SYSTEM
G
System
System Page
Touch to display serial number,
system ID, version information,
and database information.
Touch to customize the
units of measurement for
NAV Angle, Temperature,
and Fuel.
Touch to display the status of
GPS reception.
Touch to customize the volume
of the response sound when
touching the screen.
Touch to view the status of
any external LRUs that are
connected to the GTN.
System
Touch to view the setup of the
CDI, Date/Time, Nearest Airport
Criteria, and COM Channel
Spacing.
Touch to customize alerts of
arrival, destination proximity,
airspace altitude buffer, and
entry into selected airspaces.
Touch to customize the
level of backlighting.
Touch to setup Connext
devices, including Bluetooth
pairing.
Touch to setup Voice
Commands.
Touch to customize the
data fields.
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Crossfill
Dual units may be interfaced to crossfill information between the two units.
This option will not be available unless dual units are configured. The following
data is always crossfilled:
• User waypoints
• Flight plan catalog
•Alerts (Pop-up acknowledgement for traffic, missed approach waypoint, and
altitude leg)
• External sensors (transponder status and commands, synchro heading)
• System setup
Favorite NAV frequencies
Date/Time convention
Nearest airport criteria
Units (NAV angle, Fuel, and Temperature)
Favorite COM frequencies
CDI Scale setting
ILS CDI Capture setting
This data is crossfilled only if crossfill is turned on by the pilot:
• Active navigation (flight plan)
1. While viewing the System Setup page, touch the Crossfill key to toggle
between Enabled and Disabled Crossfill.
2. When Crossfill is about to be enabled, you will be prompted to note that
data will be overwritten in the other unit. Touch OK to enable Crossfill
or touch Cancel to return to the System Setup page without enabling
Crossfill.
System
Touch OK to enable
crossfill with dual units.
Confirming Crossfill Selection
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39
GTN-GNS Crossfilling:
• GTN to GNS – Active flight plans, active direct-to, User waypoints
• GNS to GTN – User waypoints
1. While viewing the System Setup page, touch the GNS Crossfill Settings
key to reach the GNS Crossfill settings.
Touch OK to Enable Auto
Crossfill With Dual Units.
Touch OK to Manually
Transfer User Waypoints.
GTN-GNS Crossfill Selection
2. Touch Auto GNS Crossfill to enable Crossfill and send the Active Flight
Plans and the active Direct-To course to the GNS unit.
3. Touch the Transfer User Waypoints key to transfer the User Waypoints from
the GTN unit to the connected GNS unit.
Transfer Of User
Waypoints In Progress.
GTN-GNS Crossfill
NOTE: When the active flight plan on the GTN contains legs or features
that are not supported by the GNS, those legs will not be crossfilled and
will not be present in the active flight plan on the GNS.
System
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GTN 625/635/650 Cockpit Reference Guide (CRG)
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Connext Setup - Flight Stream 210 and 510
The GTN interfaces with the Flight Stream 210 Bluetooth transceiver and
Flight Stream 510 wireless datacard. Using a Flight Stream and the GTN, flight
plans are sent and received over Bluetooth. In addition, GPS position is provided
from the GTN and attitude is forwarded from a connected GDU. The GTN can
also configure the Flight Stream’s Bluetooth.
The Flight Stream 510 also includes a Wi-Fi transceiver for updating
databases. Refer to GTN 625/635/650 Pilot’s Guide, P/N 190-01004-03, for more
information on updating databases with a Flight Stream 510. The GTN can
configure the Flight Stream 510’s Wi-Fi.
Touch to
Configure
Bluetooth
Touch to
Configure Wi-Fi
(Flight Stream
510 Only)
Touch To Configure
Flight Stream
Features
Connext Setup for Flight Stream 510
NOTE: Turning Flight Plan imports off will remove the ability of the GTN
to receive flight plans from the Flight Stream. This could be used if there are
repeated erroneous attempts by a portable electronic device application
to send flight plans to the GTN.
Touch To Set
The Bluetooth
Name
Touch To Manage
Paired Devices
System
Bluetooth Setup for Flight Stream
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41
Pairing a Device
New devices can only be paired with the Flight Stream when it is in “Pairing
Mode.” The Flight Stream will be in pairing mode when the GTN is navigated
to the Connext Setup page and/or the Manage Paired Devices page. The pairing
must be initiated by the portable device. Pop-ups displayed on the portable
device and GTN will be displayed to confirm the pairing.
Confirm Pairing With A New Device
Selecting “Manage Paired Devices” opens a page that lists all of devices paired
to the Flight Stream.
System
Connext Operation with Flight Stream 210 and 510
Data output from the GTN and Flight Stream occurs automatically and
requires no pilot action (such as, flight plan, GPS position, and attitude).
Additionally, ADS-B traffic and weather can be output from the Flight Stream
when connected to a GDL 88 or GTX 345 and XM WX and SiriusXM satellite
radio information can output when connected a GDL 69. From the Connext
Setup page, the pilot can enable/disable flight plan importing, change the Flight
Stream Bluetooth name, and manage paired devices. The Flight Stream 210 and
510 also support sending and receiving GSR 56 SMS messages and controlling
the GSR 56 Iridium phone when used with a compatible portable application.
From the Connext Setup page, the pilot can enable/disable Flight Stream
features (flight plan importing, phone/SMS, and Database transfers), setup
Flight Stream Bluetooth and Wi-Fi, and manage paired Bluetooth devices.
On the GTN’s Paired Devices page, the device status indicates if the portable
device is connected and communicating with the Flight Stream. The “AutoReconnect” setting determines if the Flight Stream will automatically connect
to up to four devices when in range. When this setting is disabled, the pilot
must initiate the connection from the device. For devices that always reconnect
automatically, this setting will not be shown. Removing a device from this
page by pressing “Remove” will require the device to be paired again before
transferring data.
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NOTE: If the pairing is removed from either device (portable device or
GTN) it must be removed on the other device before a new pairing to that
same device is established again. Essentially, pairing must be removed on
both devices before repairing.
Touch To Automatically
Connect To The Device
When In Range
Touch To Remove
The Device
Device Is
Connected And
Communicating
Managing Paired Devices
System
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43
Connext Setup - Other Bluetooth Devices
The GTN can also configure the Bluetooth transceiver in other units, such
as the GTX 345.
Touch To Enable
Bluetooth
Touch To Set
The Bluetooth
Name
Touch To Manage
Paired Devices
Connext Setup for GTX 345
From the Connext Setup page, the pilot can enable/disable Bluetooth, change
the Bluetooth name, and manage paired devices. On the Paired Devices page,
the device status indicates if the portable device is paired and connected. To
connect a different device when the maximum number are already connected,
the existing connection must be ended by removing the portable device pairing
or by disconnecting or disabling Bluetooth on the portable device. Removing a
device from this page by pressing “Remove” will require the device to be paired
again before reconnecting.
System
NOTE: If the pairing is removed from either device (portable device or
installed avionics) it must be removed on the other device before a new
pairing to that same device is established again. Essentially, the pairing
must be removed on both devices before re-pairing.
New devices can only be paired while the unit is in “Pairing Mode.” Pairing
mode is active while on the Connext Setup page or the Manage Paired Devices
page. The pairing must be initiated by the portable device. A pop-up will be
displayed on the portable device to confirm the pairing.
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SYMBOLS
Map Symbols
Symbol
Description
Airport with hard surface runway(s); Serviced, Primary runway shown
Airport with hard surface runway(s); Non-Serviced, Primary runway
shown
Airport with soft surface runway(s) only, Serviced
Airport with soft surface runway(s) only, Non-Serviced
Unknown Airport
Restricted (Private) Airfield
Intersection
VOR
VORTAC
VOR/DME
TACAN
DME
NDB
Locator Outer Marker
Heliport
Symbols
User Waypoint
VRP
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SafeTaxi™ Symbols
Symbol
Description
Helipad
Airport Beacon
Under Construction Zones
Unpaved Parking Areas
Hot Spot
Traffic Symbols
TIS
TIS Symbol
Description
Non-Threat Traffic
Traffic Advisory (TA)
Traffic Advisory Off Scale
TAS
TAS Symbol
Description
Symbols
Non-Threat Traffic
(intruder is beyond 5 NM and greater than 1200 ft vertical
separation)
Proximity Advisory (PA)
(intruder is within 5 NM and less than 1200 ft vertical separation)
Traffic Advisory (TA)
(closing rate, distance, and vertical separation meet TA criteria)
Traffic Advisory Off Scale
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ADS-B
Symbol
Description
Basic Non-Directional Traffic
Basic Directional Traffic
Basic Off-scale Selected Traffic
Proximate Non-Directional Traffic
Proximate Directional Traffic
Proximate Off-scale Selected Traffic
Non-Directional Alerted Traffic
Off-Scale Non-Directional Alerted Traffic
Directional Alerted Traffic
Off-Scale Directional Alerted Traffic
Non-Directional Surface Vehicle
Directional Surface Vehicle
Symbols
190-01004-04 Rev. K
GTN 625/635/650 Cockpit Reference Guide (CRG)
47
TCAD
Symbol
Imminent Traffic
Non-Imminent
Traffic
(Traffic within ±500 feet
AND 1.0 NM; OR no altitude
AND within 1.0 NM)
Description
Traffic Closing Vertically
Traffic Diverging Vertically
Traffic not Closing or Diverging
Vertically
Terrain Obstacle Symbols
Unlighted
Obstacle
(Height is less
than 1000 ft
AGL)
Lighted
Obstacle
(Height is less
than 1000 ft
AGL)
Unlighted
Obstacle
(Height is
greater than
1000 ft AGL)
Lighted
Obstacle
(Height is
greater than
1000 ft AGL)
Obstacle Altitude/Color Correlation
Tower
Windmill
Windmill in Group
Power Line
Obstacle Icon Types
Projected Flight Path
Symbols
100 ft Threshold
Threat Location
Unlighted Obstacle
Terrain above or
within 100 ft
below the aircraft
altitude (Red)
1000 ft
Terrain between 100 ft and 1000 ft below the
aircraft altitude (Yellow)
Terrain more than 1000 ft below the aircraft altitude (Black)
Terrain Altitude/Color Correlation
48
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
HTAWS Obstacle Symbols
Obstacle is at or above the aircraft altitude (Red)
Obstacle is between 250 ft and 0 ft
below the aircraft altitude (Yellow)
250 ft
Obstacle is 250 ft, or more,
below the aircraft altitude (White)
HTAWS Obstacle/Altitude Correlation
Red
Terrain is more than 250 ft
above the aircraft altitude
Aircraft Altitude +250 ft
Orange Terrain is between 250 ft and 0 ft
above the aircraft altitude
Aircraft Altitude
Terrain is between 0 ft and 250 ft
Yellow below the aircraft altitude
Aircraft Altitude -250 ft
Green
Terrain is between 250 ft and 500 ft
below the aircraft altitude
Black
Terrain more than 500 ft
below the aircraft altitude
Aircraft Altitude -500 ft
HTAWS Altitude/Color Correlation
Basemap Symbols
Symbol
Description
Interstate Highway
State Highway
US Highway
National Highway - 2-digit drawn inside
Small City or Town
Symbols
Medium City
Large City
190-01004-04 Rev. K
GTN 625/635/650 Cockpit Reference Guide (CRG)
49
Miscellaneous Symbols
Symbol
Description
Default Aircraft (ownship) (Low-Wing Prop)
High-Wing Prop
Kit Plane
Single-Engine Jet
Twin-Engine Prop
Single-Engine Jet
Business Jet
2-Blade Rotorcraft
3-Blade Rotorcraft
4-Blade Rotorcraft
High Visibility Arrow
Basic Aircraft
Symbols
Non-Directional Ownship Signal
Parallel TrackWaypoint
Restricted/Prohibited/Warning/Alert
TFR (Temporary Flight Restrictions)
50
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
Symbol
Description
MOA
Class B Airspace
Class C Airspace
Class D Airspace
User Waypoint
Stormscope® Symbols
Symbol
Time Since Strike (Seconds)
6
60
120
180
Symbols
190-01004-04 Rev. K
GTN 625/635/650 Cockpit Reference Guide (CRG)
51
Map Tool Bar Symbols
Symbol
Description
Terrain Proximity Enabled and Available Indicator
Terrain Proximity Enabled and Not Available Indicator
Point Obstacle Enabled and Available Indicator
(Software v5.12 and later)
Point Obstacle Enabled and Not Available Indicator
(Software v5.12 and later)
Wire Obstacles Enabled and Available Indicator
(Software v5.12 and later)
Wire Obstacles Enabled and Not Available Indicator
(Software v5.12 and later)
StormScope Enabled
Ownship is receiving TIS-B and ADS-R services
(Software v5.11 or earlier)
Possible incomplete traffic picture – ownship is not receiving one (or
both) of the TIS-B or ADS-R services (Software v5.11 or earlier)
Traffic Enabled and Available Indicator
Symbols
Traffic Enabled and Not Available Indicator
52
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
NOTE 1: There are several reference datums that waypoints can be surveyed against.
TSO-C146 normally requires that all waypoints be referenced to the WGS84 datum,
but allows for navigation to waypoints that are not referenced to the WGS84 datum
so long as the pilot is notified. Certain waypoints in the navigation database are not
referenced to the WGS84 datum, or their reference datum is.
Message
Description
Action
ABORT
APPROACH GPS approach no
longer available.
This message is
triggered outside
the MAP if the GTN
system can no longer
provide approach
level of service.
Vertical guidance
will be removed from
the external CDI/HSI
display.
The aircraft is predicted
to enter an airspace
type, within 10 minutes,
for which alerts are
configured.
The aircraft is within 2
nm and predicted to
enter an airspace type,
within 10 minutes,
for which alerts are
configured.
The aircraft inside an
airspace type for which
alerts are configured.
The aircraft is within
2nm of an airspace
type for which alerts
are configured.
Initiate a climb to the MSA or
other published safe altitude, abort
the approach, and execute a nonGPS based approach.
AIRSPACE ALERT Airspace entry
in less than 10
minutes.
AIRSPACE ALERT Airspace within
2 nm and entry
in less than 10
minutes.
AIRSPACE ALERT Inside airspace.
AIRSPACE ALERT Within 2 nm of
airspace.
190-01004-04 Rev. K
No action is necessary; message is
informational only.
No action is necessary; message is
informational only.
No action is necessary; message is
informational only.
No action is necessary; message is
informational only.
GTN 625/635/650 Cockpit Reference Guide (CRG)
53
Messages
MESSAGES
Messages
Message
Description
Action
APPROACH
DOWNGRADE Approach
downgraded. Use
LNAV minima.
Approach has been
downgraded from
LPV or LNAV/VNAV,
to an LNAV approach.
Vertical guidance
will be removed from
the external CDI/HSI
display.
GPS approach could
not transition to active
(e.g., the GTN is on
an approach and did
not have the required
HPL/VPL to get into at
least LNAV, so is still in
TERM).
The GTN is configured
for KAP140/KFC225
autopilot, and approach
guidance is now
available.
Continue to fly the approach using
published LNAV minimums.
The Main Lateral
Superflag or Main
Vertical Superflag
output has been turned
off due to an overcurrent condition.
Aircraft is on a GPS
approach but CDI is set
to VLOC, or aircraft is
on VLOC approach and
CDI is set to GPS and
aircraft is less than 2
nm from the FAF.
Verify course guidance is valid
and correct by crosschecking with
the GTN on-screen CDI and other
navigational equipment. Contact
dealer for service.
APPROACH NOT
ACTIVE Do not continue
GPS approach.
APR GUIDANCE
AVAILABLE Press “Enable APR
Output” before
selecting APR on
autopilot.
CDI/HSI FLAG Main lateral/
vertical flag
on CDI/HSI is
inoperative.
CDI SOURCE Select appropriate
CDI source for
approach.
54
Abort the approach, and execute a
non-GPS based approach.
Press the “Enable APR Output”
key on the GTN, this will cause
the autopilot to go into ROL
mode. Engage the autopilot into
approach mode.
Select the appropriate CDI source
for approach.
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
Description
Action
Com radio is locked to
COM RADIO 121.5 MHz.
Com locked to
121.5 MHz. Hold
remote com
transfer key to exit.
The external com remote transfer
(COM RMT XFR) switch has been
held and the com radio is tuned to
121.5. To exit this mode, hold the
com remote transfer (COM RMT
XFR) switch for two seconds.
Com radio is
Decrease length of com
COM RADIO in overtemp or
transmissions, decrease cabin
Com overtemp
undervoltage
mode
temperature and increase cabin
or undervoltage.
and
transmitting
power
airflow (especially near the GTN).
Reducing
has been reduced to
Check aircraft voltage and reduce
transmitter power.
prevent damage to the electrical load as necessary.
com radio. Radio range Contact dealer for service if this
will be reduced.
message persists.
The com radio is not
Press and hold the volume knob or
COM RADIO communicating
properly
the external com remote transfer
Com radio may be
with the system.
(COM RMT XFR) switch, if installed
inoperative.
– this will force the com radio to
121.5 MHz. Contact dealer for
service.
The com radio is
Cycle the power to the COM radio.
COM RADIO Com radio needs reporting that it needs Contact dealer for service.
service. The com radio
service.
may continue to
function.
Contact dealer for service.
CONFIGURATION TAWS is inoperative
due to a configuration
- Terrain/TAWS
problem with the GTN.
configuration is
invalid. GTN needs This message will be
accompanied by a TER
service.
FAIL annunciation.
190-01004-04 Rev. K
GTN 625/635/650 Cockpit Reference Guide (CRG)
55
Messages
Message
Messages
Message
Description
CONFIGURATION
MODULE GTN configuration
module needs
service.
COOLING GTN overtemp.
Reducing backlight
brightness.
The GTN cannot
communicate with its
configuration module.
The GTN may still have
a valid configuration.
Backlight brightness
has been reduced
due to high display
temperatures. The
backlight level will
remain high enough to
be visible in daylight
conditions.
COOLING FAN - The GTN cooling fan is
The cooling fan has powered, but it is not
turning at the desired
failed.
RPM.
CROSSFILL
ERROR Crossfill is
inoperative. See
CRG for crossfilled
items.
CROSSFILL
ERROR - GTN
Navigation DB
mismatch. See
CRG for crossfilled
items.
56
Crossfill is not
working due to loss
of communication
with other GTN or due
to one GTN needing
service.
The navigation
databases do not
match between GTNs
resulting in a loss
of communication
between two units.
Action
Contact dealer for service.
Decrease cabin temperature and
increase cabin airflow (especially
near the GTN). Contact dealer for
service if this message persists.
Decrease cabin temperature and
increase cabin airflow (especially
near the GTN) to prevent damage
to the unit. Contact dealer for
service.
See Pilot’s Guide for a list of
crossfilled items that will no longer
be crossfilled. Contact dealer for
service.
Check the specified database
version of both GTNs and ensure it
is up-to-date. Update the specified
database if needed.
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
Description
Action
CROSSFILL
ERROR GTN software
mismatch. See
CRG for crossfilled
items.
CROSSFILL
STATUS - Crossfill
is turned off.
DATABASE A procedure has
been modified in
a cataloged flight
plan.
Crossfill is configured
“on” but is not working
due to software
mismatch.
See Pilot’s Guide for a list of
crossfilled items that will no longer
be crossfilled. Contact dealer to
have software versions updated.
DATABASE Terrain display
unavailable for
current location.
DATABASE Terrain or Obstacle
database not
available.
DATABASE Verify airways in
stored flight plans
are correct.
190-01004-04 Rev. K
Crossfill is turned off.
A new database update
caused a procedure to
be truncated because
the flight plan now has
too many waypoints or
removed a procedure
because it no longer
exists in the database.
The aircraft is outside
the terrain database
coverage area.
The terrain or obstacle
database is missing or
corrupt.
A stored flight plan
contains an airway that
is no longer consistent
with the current
navigation database.
No action.
Verify stored cataloged flight plans
and procedures. Modify stored
flight plans and procedures as
necessary to include the current
procedures by re-loading those
procedures to the stored flight plan
routes.
Terrain and TAWS functions will
be unavailable. If terrain coverage
is desired in the area, load
appropriate coverage area on the
external data card.
Re-load these databases on the
external data card.
Verify that the airways in stored
flight plans are correct. Modify
stored flight plans as necessary to
include the current airways by reloading those airways to the stored
flight plan routes.
GTN 625/635/650 Cockpit Reference Guide (CRG)
57
Messages
Message
Messages
Message
Description
Action
DATABASE Verify usermodified
procedures in
stored flight plans
are correct.
DATACARD
ERROR SD card is invalid
or failed.
DATACARD
REMOVED Reinsert SD card.
DATALINK ADS-B In fault: UAT
receiver.
DATALINK ADS-B In fault:
1090 receiver.
DATALINK - FIS-B
weather has failed.
A stored flight plan
contains procedures
that have been
manually updated, and
a navigation database
update has occurred.
Verify that the user-modified
procedures in stored flight plans
are correct.
External data card has
an error and the unit
is not able to read the
databases.
ChartView, FlightCharts, and
Terrain databases will not be
accessible by the unit. Contact
dealer for service.
External data card was
removed.
Reinsert data card.
The ADS-B In source
has detected a UAT
receiver fault.
Contact dealer for service.
The ADS-B In source
has detected a 1090
receiver fault.
Contact dealer for service.
The FIS-B receiver is
Contact dealer for service.
reporting that it has
failed. The display of
FIS-B products may be
unavailable.
The GTN is configured Contact dealer for service.
DATALINK for a Garmin datalink
GDL 69 is
(GDL 69 or 69A)
inoperative or
connection to GTN and the GTN cannot
communicate with the
is lost.
datalink. Data from
the datalink will not be
available.
58
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
Description
Action
DATALINK GDL 88 ADS-B
failure. Unable to
transmit ADS-B
messages.
DATALINK GDL 88 ADS-B
fault.
GDL 88 is not able
Contact dealer for service.
to transmit an ADS-B
message due to a
failure with the GDL 88
system or antenna(s).
DATALINK GDL 88 ADS-B
fault. Pressure
altitude input is
invalid.
DATALINK GDL 88 ADS-B is
not transmitting
position. Check
GPS devices.
DATALINK GDL 88
configuration
module needs
service.
DATALINK GDL 88 control
input fault. Check
transponder is in
correct mode.
Contact dealer for service.
190-01004-04 Rev. K
The GDL 88 has
detected a fault with
one of the GDL 88
UAT/1090 antennas.
The GDL 88 has lost
communication with
the pressure altitude
source.
Contact dealer for service.
The GDL 88 has
detected a position
input fault.
Contact dealer for service.
The GDL 88
has detected a
configuration module
fault.
Contact dealer for service.
The GDL 88 has lost
communication with
the transponder.
Contact dealer for service.
GTN 625/635/650 Cockpit Reference Guide (CRG)
Messages
Message
59
Messages
Message
Description
DATALINK GDL 88 is
inoperative or
connection to GTN
is lost.
The GTN is configured
for a Garmin datalink
(GDL 88) and the GTN
cannot communicate
with the datalink. Data
from the datalink will
not be available.
GDL 88 has detected
an internal fault.
Contact dealer for service.
The GSR 56 is not
registered. GSR
Weather, Position
Reporting, and Phone
Services will be
unavailable.
Contact dealer for service.
DATALINK GDL 88 needs
service.
DATALINK GSR 56 data
services
inoperative;
registration
required.
DATALINK GSR 56 is
inoperative or
connection to GTN
is lost.
The GTN is configured
for a Garmin GSR 56
and the GTN cannot
communicate with the
GSR 56. GSR Weather,
Position Reporting, and
Phone Services will be
unavailable.
User settings such as
DATA LOST map detail level, nav
Pilot stored data
was lost. Recheck range ring on/off, traffic
overlay on/off, and alert
settings.
settings have been lost.
DATA SOURCE - The GTN is configured
to receive heading
Heading source
information but is not
inoperative or
connection to GTN receiving it from any
source.
lost.
60
Action
Contact dealer for service.
Close the GSR 56 circuit breaker
and ensure the GSR 56 is receiving
power. Contact dealer for service.
Recheck settings.
Heading up map displays will not
be available. Contact dealer for
service.
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
DATA SOURCE Pressure altitude
source inoperative
or connection to
GTN lost.
DATA SOURCE Radar Altimeter
source inoperative
or connection to
GTN lost.
DEMO MODE Demo mode is
active. Do not use
for navigation.
FLIGHT PLAN
IMPORT - Flight
plan import failed.
FLIGHT PLAN
IMPORT - Flight
plan import failed.
Catalog is full.
FLIGHT PLAN
IMPORT - New
imported flight
plan(s) available
for preview.
190-01004-04 Rev. K
Description
Action
The GTN is configured
to receive pressure
altitude but is not
receiving it from any
source.
If the GTN is being used to forward
pressure altitude to a transponder,
the transponder will not be
receiving pressure altitude from the
GTN while that message is present.
Contact dealer for service.
The GTN is configured 50 foot aural annunciation
to receive radio altitude is unavailable for HTAWS
information but is not installations. Contact dealer for
receiving it from any
service.
source.
The GTN is in Demo
Mode and must not
be used for actual
navigation.
Do not use for navigation. Power
cycle the GTN to exit demo mode.
Also ensure that the Direct-To key
is not stuck.
The requested flight
plan could not be
imported because the
GTN was unable to
decode the contents of
the flight plan.
The flight plan
catalog is full and the
requested flight plan
could not be imported.
Check for proper operation of
the needed components. If the
problem persists. Contact dealer
for service.
Edit the flight plan catalog to
remove unneeded flight plans.
The GTN has received a No action is necessary; message is
new flight plan that is informational only.
available for preview by
the pilot.
GTN 625/635/650 Cockpit Reference Guide (CRG)
61
Messages
Message
Messages
Message
Description
Action
FPL WAYPOINT
LOCKED Stored flight plan
waypoint is not in
current navigation
database.
FPL WPT MOVED Stored flight plan
waypoint has
changed location.
A stored flight plan
waypoint is no longer in
the current navigation
database.
Verify stored cataloged flight plans
and procedures. Modify stored
flight plans as necessary to include
waypoints that are in the current
navigation database.
A stored flight plan
waypoint has moved
by more than 0.33 arc
minutes from where
previously positioned.
Verify stored cataloged flight plans
and procedures. Modify stored
flight plans as necessary to include
waypoints that are in the current
navigation database.
Fly an approach that does not use
the glideslope receiver (VOR, LOC,
GPS). Contact dealer for service.
The glideslope board
GLIDESLOPE Glideslope receiver is not communicating
property with the
has failed.
system.
The glideslope board is
GLIDESLOPE Glideslope receiver indicating that it needs
service. The glideslope
needs service.
board may continue to
function.
GNS CROSSFILL Catalog full; not all
GNS waypoint(s)
transferred.
A user waypoint from
the GNS could not be
created because the
user waypoint catalog
is full.
GNS CROSSFILL - A user waypoint from
the GNS replaced
GTN user
one or more existing
waypoint(s)
replaced with GNS waypoints on the GTN.
user waypoints.
62
Verify glideslope deviation
indications with another source
and crosscheck final approach
fix crossing altitude. If another
glideslope source is not available
for verification, fly a GPS based
approach. Contact dealer for
service.
Remove some of the waypoints
from the catalog to make room for
the waypoints from the GNS.
Ensure that the waypoints on the
GNS have unique names before
transferring to the GTN to avoid
overwriting existing waypoints.
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
GNS CROSSFILL Waypoint transfer
failed.
GPS
NAVIGATION
LOST Erroneous
position. Use other
navigation source.
GPS
NAVIGATION
LOST Insufficient
satellites. Use other
navigation source.
GPS RECEIVER GPS receiver has
failed. Check GPS
coax for electrical
short.
GPS RECEIVER GPS receiver needs
service.
GPS RECEIVER Low internal clock
battery.
190-01004-04 Rev. K
Description
Action
Waypoint transfer
failed/incomplete.
The data transfer should be
reattempted.
GPS position has been
lost due to erroneous
position.
Use a different GPS receiver
or a non-GPS based source of
navigation. Contact dealer for
service.
GPS position has been
lost due to lack of
satellites.
Wait for GPS satellite geometry
to improve. Ensure the aircraft
has a clear view of the sky. Use a
different GPS receiver or a nonGPS based source of navigation.
Contact dealer for service.
Messages
Message
Internal communication Use a different GPS receiver
to the SBAS board is
or a non-GPS based source of
inoperative.
navigation. Contact dealer for
service.
The GPS module
is reporting that it
needs service. The GPS
module may continue
to function.
The GPS module
indicates that its clock
battery is low. Almanac
data may have been
lost. The unit will
function normally, but
may take a longer
than normal period to
acquire a GPS position.
Use a different GPS receiver
or a non-GPS based source of
navigation. Contact dealer for
service.
Contact dealer for service.
GTN 625/635/650 Cockpit Reference Guide (CRG)
63
Messages
Message
GPS SEARCHING
SKY Ensure GPS
antenna has an
unobstructed view
of the sky.
Description
The GPS module is
acquiring position and
may take longer than
normal. This message
normally occurs after
initial installation or if
the unit has not been
powered for several
weeks.
The GTN has lost
GTN GTN needs service. calibration data that
was set by Garmin
during manufacturing.
HOLD EXPIRED - The selected Expect
Holding EFC time Further Clearance (EFC)
time for a user-defined
has expired.
hold has passed.
The terrain database is
HTAWS of insufficient resolution
Invalid Terrain
for use with HTAWS.
Database.
GAD 42 indicates a
INTERFACE
configuration error.
ADAPTER GAD 42
configuration
needs service.
GAD 42 indicates it
INTERFACE
needs service. The GAD
ADAPTER 42 may continue to
GAD 42 needs
function.
service.
Internal SD card has an
INTERNAL SD
error. This card is not
CARD ERROR GTN needs service. accessible by the user.
64
Action
No action is necessary; message is
informational only.
Contact dealer for service.
No action is necessary; message is
information only.
Load HTAWS specific terrain
database on the external SD card.
Verify all input/output data from/
to the GAD 42 Interface Adapter.
Contact dealer for service.
Verify all input/output data from/
to the GAD 42 Interface Adapter.
Contact dealer for service.
Contact dealer for service.
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
Description
Internal SD card was
INTERNAL SD
CARD REMOVED - removed or failed. This
GTN needs service. card is not accessible by
the user.
The Direct-To key
KEY STUCK has been in pressed
Direct-To key is
position for at least 30
stuck.
seconds. This key will
now be ignored.
The HOME key has
KEY STUCK HOME key is stuck. been in pressed
position for at least 30
seconds. This key will
now be ignored.
KNOB STUCK Dual concentric
inner knob is stuck
in the pressed
position.
KNOB STUCK Volume knob
is stuck in the
pressed position.
LOCKED FLIGHT
PLAN
Cannot activate
a flight plan
containing a locked
waypoint.
190-01004-04 Rev. K
The dual concentric
inner knob has been in
pressed position for at
least 30 seconds. This
knob press will now be
ignored.
The Volume knob
has been in pressed
position for at least
30 seconds. This knob
press will now be
ignored.
The user is trying to
activate a flight plan
that contains a locked
waypoint.
Action
Messages
Message
Contact dealer for service.
Verify the Direct-To key is not
pressed. Contact dealer for service
if this message persists.
Verify the HOME key is not
pressed. Press the Home key again
to cycle its operation. Contact
dealer for service if this message
persists.
Verify the dual concentric knob
is not pressed. Contact dealer for
service if this message persists.
Verify the volume knob is not
pressed. Contact dealer for service
if this message persists.
Unlock the flight plan by modifying
stored flight plans as necessary
to include waypoints, procedures,
and airways that are in the current
navigation database.
GTN 625/635/650 Cockpit Reference Guide (CRG)
65
Messages
Message
Description
LOSS OF
INTEGRITY (LOI)Verify GPS
position with
other navigation
equipment.
MAGNETIC
NORTH
APPROACH Verify NAV angles
are referenced
to magnetic
north (magnetic
variation).
MAGNETIC
VARIATION Aircraft in area
with large mag var.
Verify all course
angles.
Antenna may be
shaded from satellites.
The GPS module has
reported a loss of
integrity.
Make sure the aircraft is clear of
hangars, buildings, trees, etc. Use
a different GPS receiver or a nonGPS based source of navigation.
Contact dealer for service if this
message persists.
The NAV angle is not
set to Magnetic and a
magnetic approach is
loaded.
Change NAV angle setting to
Magnetic.
MagVar is flagged
as unreliable in the
MagVar database.
This normally occurs
when operating at high
latitudes that do not
support a Nav Angle of
Magnetic.
Mark on target
waypoint creation
has failed because of
missing GPS position.
Verify that the geographical region
supports navigation based on
magnetic variation.
MARK ON
TARGET Waypoint creation
has failed. MOT
requires GPS
position.
NAV ANGLE NAV Angles are
referenced to a
User set value (U).
66
Action
Wait for GPS satellite geometry to
improve. Ensure the aircraft has a
clear view of the sky. Reattempt
waypoint creation. Contact dealer
for service.
Nav angle is set to User. No action is necessary; message is
informational only.
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
NAV ANGLE NAV Angles are
referenced to True
North (T).
NON-WGS84
WAYPOINT See CRG. Location
may be different
than where
surveyed for [WPT].
OBS OBS is not
available due to
dead reckoning or
no active waypoint.
PARALLEL TRACK Parallel track not
supported for leg
type.
PARALLEL TRACK Parallel track not
supported for turns
greater than 120
degrees.
PARALLEL TRACK Parallel track not
supported past IAF.
190-01004-04 Rev. K
Description
Action
Nav angle is set to True. No action is necessary; message is
informational only.
The active waypoint is not No action is necessary; message is
referenced to the WGS84 informational only.
datum.
See Note 1 at the end of
the table.
OBS requires an active
waypoint and is not
supported in dead
reckoning mode.
No action is necessary; message is
informational only.
Parallel track is not
supported on current
leg type.
No action is necessary; message is
informational only.
Parallel track is not
supported for turns
greater than 120
degrees due to the
acute angle.
No action is necessary; message is
informational only.
Parallel track is
not supported on
approaches.
No action is necessary; message is
informational only.
GTN 625/635/650 Cockpit Reference Guide (CRG)
67
Messages
Message
Messages
Message
Description
REMOTE KEY
STUCK Alert Acknowledge
key is stuck.
The remote TAWS
alert acknowledge
(ALRT ACK) key/switch
has been in pressed
position for at least 30
seconds. This input will
now be ignored. This
input is not available in
all installations.
The Push To Talk key/
switch has been in
pressed position for
at least 30 seconds.
This input will now be
ignored and the com
radio will no longer
transmit.
The remote com
frequency decrement
(COM CHAN DN) key/
switch has been in
pressed position for
at least 30 seconds.
This input will now
be ignored. This input
is not available in all
installations.
The remote com
frequency increment
(COM CHAN UP) key/
switch has been in
pressed position for
at least 30 seconds.
This input will now
be ignored. This input
is not available in all
installations.
REMOTE KEY
STUCK Com push-to-talk
key is stuck.
REMOTE KEY
STUCK Com remote
frequency
decrement key is
stuck.
REMOTE KEY
STUCK Com remote
frequency
increment key is
stuck.
68
Action
Verify the ALRT ACK key/switch
is not stuck. Contact dealer for
service if this message persists.
Verify the Push To Talk key/switch
is not stuck. Contact dealer for
service if this message persists.
Verify the COM CHAN DN key/
switch is not stuck. Contact dealer
for service if this message persists.
Verify the COM CHAN UP key/
switch is not stuck. Contact dealer
for service if this message persists.
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
REMOTE KEY
STUCK Com remote
transfer key is
stuck.
Description
The remote com
transfer (COM RMT
XFR) key/switch has
been in pressed
position for at least 30
seconds. This input will
now be ignored. This
input is not available in
all installations.
The remote nav transfer
REMOTE KEY
(NAV RMT XFR) key/
STUCK switch has been in
Nav remote
pressed position for
transfer key is
at least 30 seconds.
stuck.
This input will now
be ignored. This input
is not available in all
installations.
The remote push-toREMOTE KEY
command key/switch
STUCK Pilot/Co-Pilot voice has been in pressed
position for at least 30
command pushto-command key is seconds. This input will
now be ignored. This
stuck.
input is not available in
all installations.
The remote CDI (CDI
REMOTE KEY
SRC SEL) key/switch
STUCK Remote CDI key is has been in pressed
position for at least 30
stuck.
seconds. This input will
now be ignored. This
input is not available in
all installations.
190-01004-04 Rev. K
Action
Verify the COM RMT XFR key/
switch is not stuck. Contact dealer
for service if this message persists.
Verify the NAV RMT XFR key/
switch is not stuck. Contact dealer
for service if this message persists.
Verify the push-to-command key/
switch is not stuck. Contact dealer
for service if this message persists.
Verify the CDI SRC SEL key/switch
is not stuck. Contact dealer for
service if this message persists.
GTN 625/635/650 Cockpit Reference Guide (CRG)
69
Messages
Message
Messages
Message
REMOTE KEY
STUCK Remote go around
key is stuck.
Description
The remote go around
(RMT GO ARND) key/
switch has been in
pressed position for
at least 30 seconds.
This input will now
be ignored. This input
is not available in all
installations.
The remote OBS (OBS
REMOTE KEY
MODE SEL) key/switch
STUCK Remote OBS key is has been in pressed
position for at least 30
stuck.
seconds. This input will
now be ignored. This
input is not available in
all installations.
The remote RP MODE
REMOTE KEY
key/switch has been
STUCK in pressed position for
RP Mode key is
at least 30 seconds.
stuck.
This input will now
be ignored. This input
is not available in all
installations.
The TAWS INHIBIT
REMOTE KEY
discrete input has been
STUCK TAWS inhibit key is in pressed position for
at least 30 seconds.
stuck.
This input will now
be ignored. This input
is not available in all
installations.
70
Action
Verify the RMT GO ARND key/
switch is not stuck. Contact dealer
for service if this message persists.
Verify the OBS MODE SEL key/
switch is not stuck. Contact dealer
for service if this message persists.
Verify the RP MODE key/switch
is not stuck. Contact dealer for
service if this message persists.
Verify the TAWS INHIBIT key/switch
is not stuck. Contact dealer for
service if this message persists.
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
Description
SELECT
FREQUENCY Select appropriate
NAV frequency for
approach.
SET COURSE Set course on CDI/
HSI to [current
DTK].
STEEP TURN Aircraft may
overshoot course
during turn.
Correct NAV frequency
is not set in the active
NAV frequency for the
approach procedure.
Insert the correct frequency into
the active navigation frequency
window.
The selected course
on the CDI/HSI does
not match the current
desired track.
Set the CDI/HSI selected course to
the current desired track.
Flight plan contains an
acute course change
ahead which will
require a bank in excess
of normal to follow the
guidance. If coupled
to the autopilot, the
autopilot may not be
able to execute the
steep turn needed
to follow the course
guidance.
The WX-500
StormScope reports
that it has an invalid
heading source.
No action is necessary; message is
informational only. If desired, slow
the aircraft to shallow the turn.
The GTN is configured
for a WX-500
StormScope but is not
receiving data from it.
Close the Stormscope circuit
breaker and ensure Stormscope is
receiving power. Contact dealer for
service.
STORMSCOPE Invalid heading
received from
StormScope.
STORMSCOPE StormScope is
inoperative or
connection to GTN
is lost.
190-01004-04 Rev. K
Action
Messages
Message
GTN StormScope data is correct
and may be used. Contact dealer
for service.
GTN 625/635/650 Cockpit Reference Guide (CRG)
71
Messages
Message
TAWS AUDIO
INHIBITED TAWS audio inhibit
input is stuck.
Description
The TAWS Audio
Contact dealer for service.
Inhibit discrete input
has been active for
at least 30 seconds.
This input is active in
all installations. TAWS
audio may be heard at
the same time as other
audio alerts.
A user-configured timer No action is necessary; message is
has expired.
informational only.
TIMER Timer has expired.
The ADS-B traffic
TRAFFIC system is reporting
ADS-B In traffic
alerting has failed. to the GTN that the
CSA application has
failed. Traffic alerting
on ADS-B traffic is
unavailable.
The ADS-B traffic
TRAFFIC ADS-B In traffic has system may have
lost GPS position or
failed.
detected an internal
fault.
The GDL 88 is reporting
TRAFFIC that the external traffic
TCAD has a low
system has a low
battery.
battery.
The TCAD system
TRAFFIC has indicated that its
Traffic device
battery low. Traffic battery is low.
device user config
settings not saved.
72
Action
Ensure the aircraft has a clear view
of the sky. If the problem persists.
Contact dealer for service.
Contact dealer for service.
Contact dealer for service.
Contact dealer for service.
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
TRAFFIC Traffic device has
been in standby
for more than 60
seconds.
TRAFFIC Traffic device is
inoperative or
connection to GTN
is lost.
Description
The GTN is airborne
Set the traffic device to “operate”
and the traffic device
on the traffic page if traffic alerts
has been in standby for are desired.
more than 60 seconds.
The GTN is configured
for a traffic device but
is not receiving data
from it. Traffic will not
be displayed on the
GTN.
TRANSPONDER - The GTN is configured
for two transponders
Transponder 1
and their Mode S
and 2 Mode S
addresses do not addresses do not
match. This message
match.
is intended to assist
installers and will not
occur in a properly
configured system.
TRANSPONDER The transponder has
insufficient data to
1 OR 2 support ADS-B.
ADS-B is not
transmitting
position.
TRANSPONDER The transponder has
lost communication
1 OR 2 ADS-B Out system with the pressure
altitude source.
fault. Pressure
altitude source
inoperative or
connection lost.
190-01004-04 Rev. K
Action
Messages
Message
Contact dealer for service.
Contact dealer for service.
Ensure the aircraft has a clear
view of the sky. Contact dealer for
service.
Contact dealer for service.
GTN 625/635/650 Cockpit Reference Guide (CRG)
73
Messages
Message
Description
TRANSPONDER
1 OR 2 Transponder 1 or
2 is inoperative or
connection to GTN
is lost.
TRANSPONDER
1 OR 2 Transponder 1 or 2
needs service.
The GTN is configured
for transponder 1 or
2 but is not able to
communicate with the
transponder.
Verify squawk code and altitude
with ATC. Contact dealer for
service.
The transponder is
reporting to the GTN
that it needs service.
The transponder may
continue to function.
The transponder has
detected an internal
fault and transponder
functionality may be
unavailable.
Verify squawk code and altitude
with ATC. Contact dealer for
service.
The transponder is
operating in a mode
intended for ground
testing.
Cycle the power to the
transponder.
The transponder is
reporting that its
internal temperature
has exceeded upper
operating limits.
The transponder is
reporting that its
internal temperature
has exceeded lower
operating limits.
Decrease temperature and increase
airflow near the transponder, if
possible. Monitor aircraft electrical
indications. Contact dealer for
service if this message persists.
Contact dealer for service if this
message persists.
TRANSPONDER
1 OR 2 Transponder has
failed.
TRANSPONDER
1 OR 2 Transponder is in
ground test mode.
TRANSPONDER
1 OR 2 Transponder
overtemp.
TRANSPONDER
1 OR 2 Transponder
undertemp.
74
Action
Contact dealer for service.
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
TRUE NORTH
APPROACH Verify NAV Angles
are referenced to
True North (T).
Description
A procedure is loaded
that is referenced
to true north and
the active leg has a
published true north
reference.
USER WAYPOINT All user waypoints
IMPORT - User
were imported
waypoints
successfully.
were imported
successfully.
USER WAYPOINT User Waypoint import
failed due to improper
IMPORT - User
file format.
waypoint import
failed.
USER WAYPOINT User Waypoint catalog
is full and the requested
IMPORT - User
user waypoints could
waypoint import
not be imported.
failed. User
waypoint database
is full.
USER WAYPOINT User waypoints
imported and existing
IMPORT - User
waypoints are used
waypoints
instead of creating
imported
duplicate waypoints.
successfully existing waypoints
reused.
190-01004-04 Rev. K
Action
Messages
Message
Verify the Nav Angle is set to True
North.
No action is necessary; message is
informational only.
Ensure the media has the correct
file format. If the problem persists.
Contact dealer for service.
Edit the User Waypoint catalog to
remove unneeded user waypoints.
No action is necessary; message is
informational only.
GTN 625/635/650 Cockpit Reference Guide (CRG)
75
Messages
Message
Description
User has configured
VCALC Approaching top of a vertical descent
calculation, and the
descent.
aircraft is within
60 seconds of the
calculated top of
descent.
User has configured
VCALC Arriving at VCALC a vertical descent
calculation, and the
target altitude.
aircraft is approaching
the target altitude.
VLOC RECEIVER - The nav radio is
Navigation receiver not communicating
property with the
has failed.
system.
VLOC RECEIVER - The nav radio is
Navigation receiver reporting to the GTN
that it needs service.
needs service.
The nav radio may
continue to function.
User has configured
WAYPOINT the arrival alarm and
Arriving at [wpt
is within the specified
name].
distance.
76
Action
No action is necessary; message is
informational only.
No action is necessary; message is
informational only.
Use GPS based navigation. Contact
dealer for service.
Use GPS based navigation. Contact
dealer for service.
No action is necessary; message is
informational only.
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
GLOVE QUALIFICATION PROCEDURE
1. Sit in the pilot’s seat.
2. Start the GTN in Demo mode by pressing and holding the Direct To key
during power up.
3. Perform the tasks listed in the following sections with an ungloved hand.
You do not need to record any results for this step.
4. Perform the tasks listed in the following sections with a gloved hand. For
each task, determine whether the operation is the same or worse as it
was without the glove. Record the results in the applicable table. Items
that may cause the operation to be worse include, but are not limited to:
a. Multiple attempts to select a key
b. Unintentional selection of adjacent keys
c. Excessive force on the touchscreen to select a key
5. If all applicable tasks in following sections respond in the same way with
and without a glove then the glove used to complete these tasks may
be used by the pilot who performed this evaluation on the unit (6XX or
7XX) that was used during this procedure.
190-01004-04 Rev. K
GTN 625/635/650 Cockpit Reference Guide (CRG)
77
Glove Qualification Procedure
This procedure is used to qualify a specific glove for use with the GTN system
by guiding the user through a variety of tasks that use the touchscreen. Due to
differences in finger size, glove size, and touchscreens between the 6XX or 7XX
unit, the qualification granted by this procedure is specific to the pilot/glove and
6XX or 7XX combination. GTN 7XX and 6XX units must be evaluated separately.
The GTN touchscreen uses capacitive touch technology to sense the proximity
of skin to the display. A glove increases the distance between skin and the display
glass and may reduce the ability of the GTN to detect touches. Therefore, when
selecting a glove for use with the GTN, thinner gloves tend to work better than
thicker gloves. Leather gloves and gloves designed to work specifically with
capacitive touchscreen devices are often found to be acceptable. Additionally,
altering your touch technique to use the pad of your finger to touch the unit
rather than the tip will increase the touchscreen sensitivity while using gloves.
This qualification must be completed on the ground. Performing this
procedure in flight is not authorized. “Tests Required for Glove Qualification”
table contains tasks that are required to qualify a glove. “Test Not Required
for Glove Qualification” table contains tasks that are not required to qualify a
glove, but may limit the manner in which some functions are accessed while
a glove is worn.
Glove Qualification Procedure
Pilot: Glove Description: GTN (circle one): 6XX or 7XX
Tests Required for Glove Qualification
Task
Navigate to the Home Screen.
Touch the Demo key.
Touch the GPS key.
Touch the Waypoint key.
Type “KSLE” using the touchscreen, then touch
Enter.
Navigate to the Home Screen (Press HOME).
Touch the Flight Plan key.
Enter the following waypoints using the Add
Waypoint key at the bottom of the list of flight plan
waypoints:
KSLE
KMMV
KONP
BTG
Select BTG, then touch the Load Airway key to load
the following airway: V23 ALFOR.
While viewing the flight plan page, touch the Up/
Down arrow keys to scroll up and down to view the
flight plan waypoints.
Touch the Back key to return to the Home screen.
Touch the COM standby frequency to activate the
com frequency entry keypad (Task applicable to
635/650/750 only).
Enter a valid com frequency and touch the Enter key
(635/650/750 only).
78
Operation With Glove
(circle one)
NA
Same
Worse
Same
Worse
Same
Worse
Same
Worse
NA
Same
Same
Worse
Worse
Same
Worse
Same
Worse
Same
Same
Worse
Worse
Same
Worse
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
Task
Same
Worse
Same
Worse
Glove Qualification Procedure
Touch the active com frequency to flip/flop the com
frequencies. (635/650/750 only).
Touch the active nav frequency to flip/flop the nav
frequencies (750 only).
Touch the Menu key (650 only).
Operation With Glove
(circle one)
Same
Worse
Tests Not Required for Glove Qualification
Task
Navigate to the flight plan page.
While viewing the flight plan page, touch the list and
drag up/down to view the flight plan waypoints.
While viewing the flight plan page, touch and flick the
list to view the flight plan waypoints.
Navigate to the map page.
Touch the Map to enter Pan mode, then touch the
Graphically Edit FPL key.
Remove KONP from the flight plan graphically by
touching KONP and dragging it to an area without
any waypoints (Pan and zoom in/out as necessary to
accomplish the task).
Insert KSPB between KMMV and BTG by dragging the
leg between KMMV and BTG to KSPB.
190-01004-04 Rev. K
Operation With Glove
(circle one)
NA
Same
Worse
Same
Worse
NA
Same
Worse
Same
Worse
Same
Worse
GTN 625/635/650 Cockpit Reference Guide (CRG)
79
Telligence Voice Command Qualification Procedure
TELLIGENCE VOICE COMMAND
QUALIFICATION PROCEDURE
In order to enable voice command functionality crew members must
successfully perform and complete 17/20 (85%) voice commands in the
Telligence aircraft qualification procedure. Crew members must be comfortable
speaking into an aviation headset and proficient in English.
Voice Command Guidelines
NOTE: If a voice command is uninterpretable, verify the system is
performing the intended action or displaying the desired data. If the system
does not recognize a command, use the touchscreen to execute the function.
The GTN Voice Command History details all commands performed.
•Position the headset MIC approximately 1/8-inch from mouth, align with
bottom lip to avoid breath sounds in the microphone.
• Speak conversationally.
• Annunciate clearly.
• Speak in a normal tone and volume.
• Speak at a normal cadence (not too quickly or slowly).
•Pause briefly between activation of the PTC switch and when speaking the
voice command.
• Review the commands prior to performing the qualification.
80
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
Voice Command Instructions
1. Press and hold the Push to Command (PTC) switch.
2. Speak the entire command into the headset MIC.
3. Release the “PTC” switch.
• A positive tone (low-to-high) indicates a command is successfully
executed. (i.e., page changed, radio tuned, MIC selected, etc.)
• A negative tone (high-to-low) indicates the command is either
unrecognizable or it’s an invalid request.
Successful Command Example
If “show approaches page” is spoken and the approach selection page displays
immediately then a positive tone will sound.
Unsuccessful Command Example
If “show map page” is spoken and the traffic page is displayed then a negative
tone sounds.
Telligence Voice Command Qualification Procedure
Speak the unbold phrase if the voice command in this procedure is not
applicable to the aircraft’s configuration. If the total number of successful
commands is less than 17 the voice commands must be disabled in configuration
mode. This procedure is to be completed on the ground with the engine running.
Example: If the requirement states a COM radio is required, but your GTN
does not a have a COM radio, use the unbold command.
1. Start the GTN and acquire a GPS position.
2. Conduct the voice commands in sequential order while wearing
an aviation headset. If necessary, a command can be attempted
twice.
3. When the command is successful check the box next to the
command.
190-01004-04 Rev. K
GTN 625/635/650 Cockpit Reference Guide (CRG)
81
Telligence Voice Command Qualification Procedure
SHOW Flight Plan PAGE
Telligence Voice Command Qualification Procedure
*** Manually enter a flight plan with a towered airport as the destination ***
SHOW Trip Planning PAGE
* TUNE Nearest Ground or SHOW Nearest Airport PAGE
* TUNE Nearest ATIS or SHOW Nearest Weather Frequency PAGE
† TOGGLE COM 2 or SAY Distance
SHOW Map PAGE
ZOOM OUT
SAY Distance to Destination
SHOW Flight Timers PAGE
† SELECT COM 2 or SAY ETA at Destination
SAY Active Waypoint
CREATE Waypoint Here
* TUNE Destination Tower or SHOW Destination Runways PAGE
‡ SHOW Traffic PAGE or SHOW Nearest PAGE
SHOW Procedures PAGE
SHOW V-CALC PAGE
SHOW Current Time
SAY Desired Track
BACK
SHOW Voice Command History Page
* A GTN COM radio is required.
† Two COM radios connected to the GMA are required.
‡ Traffic capability is required on the GTN.
.
82
GTN 625/635/650 Cockpit Reference Guide (CRG)
190-01004-04 Rev. K
© 2011 - 2016 Garmin Corporation
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1200 East 151st Street, Olathe, Kansas 66062, U.S.A.
Tel. 913/397.8200 or 800/800.1020
Fax 913/397.8282
Garmin AT, Inc.
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www.garmin.com
Part Number 190-01004-04 Rev. K
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requirements of AC 90-100A.
September 2016
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