Garmin | GTN™ 625 | Garmin GTN™ 625 GTN 625/635/650 SW v6.30 Upgrade Supplement

Garmin GTN™ 625 GTN 625/635/650 SW v6.30 Upgrade Supplement
GTN 625/635/650 SOFTWARE v6.30
PILOT’S GUIDE UPGRADE SUPPLEMENT
This supplement contains the pages revised in the GTN 625/650 Pilot’s Guide,
P/N 190-01004-03, Rev M, regarding the new features of software v6.30. Change bars
are placed adjacent to the revised information as described in the revision summary table.
This supplement, in combination with the GTN 625/650 Pilot’s Guide,
P/N 190-01004-03, Rev L, is equivalent to the GTN 625/650 Pilot’s Guide,
P/N 190-01004-03, Rev M.
Current documents are available at www.flyGarmin.com
Printed copies may be purchased by contacting Garmin Customer Support.
NOTE: Depending on which version of software is installed and how
it is configured, the actual features and screen images may differ from
what is shown. For more information regarding feature availability
for specific software versions refer to the GTN 625/650 Pilot’s Guide,
P/N 190-01004-03.
GTN 625/635/650 SW v6.30 Pilot’s Guide Upgrade Supplement 190-01004-18 Rev A
© 2017 Garmin Ltd. or its subsidiaries. All rights reserved.
This manual reflects the operation of System Software version 6.30, or later. Some differences in operation may be
observed when comparing the information in this manual to later software versions.
At Garmin, we value your opinion. For comments about this guide, please e-mail:
Techpubs.Salem@Garmin.com
For aviation product support, visit www.flyGarmin.com
Except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted, disseminated,
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Garmin hereby grants permission to download a single copy of this manual and of any revision to this manual onto a
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copy of this manual or revision must contain the complete text of this copyright notice and provided further that any
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This part shall comply with Garmin Banned and Restricted Substances document, 001-00211-00.
Garmin®, FliteCharts®, and SafeTaxi® are registered trademarks of Garmin Ltd. or its subsidiaries. Garmin SVT™,
Telligence™, and Smart Airspace™ are trademarks of Garmin Ltd. or its subsidiaries. These trademarks may not be
used without the express permission of Garmin.
NavData® is a registered trademark of Jeppesen, Inc.; StormScope® and SkyWatch® are registered trademarks of L-3
Communications; Sirius and XM are trademarks of SiriusXM Radio Inc.; Iridium® is a registered trademark of Iridium
Communications Inc.; United States radar data provided by NOAA; European radar data collected and provided by
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trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Garmin is under license.
GTN 625/635/650 SW v6.30 Pilot’s Guide Upgrade Supplement 190-01004-18 Rev A
GTN 625/650 Pilot’s Guide Revision M, Change Summary
Section
Page
Various
Description
Updated contact information where applicable
Front Matter
v
Revised note with updated Advisory Circular
Section 1 – Getting Started
1.4.1
1.9
1.10
1-6
1-18
1-19
Rewrote section for clarity.
Rewrote section to include VFR visual approaches.
Added reference to section 15.2.4, “GPS Faults.”
Section 2 – Audio & Transponder Control
2.1.8
2-9
Added “TCAS II Transponder Mode Controls” section.
Section 3 NAV/COM
3.3.4
3-11
Updated external remote Com flip-flop key reference.
Section 4 – Flight Plan
4.2
4-4
4.3.3
4-23
Rewrote “Edit Data Fields” footnote.
Updated note regarding graphically editing flight plans with
earlier software revisions.
Section 6 - Procedures
6.0
6-1
6-2
6.1
6-3
6.4
6-8
6-9
6-21
6.13
6-22
Rewrote opening paragraph to include visual approach
guidance.
Added lateral vertical guidance reference for visual
approaches.
Added “LP” and “L/VNAV” annunciations to table 6-1,
“Phase of Flight Annunciations.”
Added note regarding the loading of alternate approaches
during a missed approach procedure.
Added information about approach selection order to step 3.
Added “Visual Approach Procedures” section
Updated screen image for figure 6-27, “Visual Approach
Configuration Pop-up.”
Added note regarding CDI/VDI displays.
Section 7 - Charts
7.2.9
7.8.2
7-10
7-20
Added “Nearest VRPs” section.
Rewrote step 6 for clarity.
GTN 625/635/650 SW v6.30 Pilot’s Guide Upgrade Supplement 190-01004-18 Rev A
Section
Page
8.1.1.6
8-6
8.1.1.6
8-7
8.1.2
8-8
8-10
8.1.2.1
8-12
8-18
8-19
8.1.2.2
8.1.2.4
8-20
8-22
8-23
8.1.3
8-28
8.1.4
8-30
8.3.3
8-35
8.3.3.1
8-36
8.7.1
8-42
Description
Section 8 - Map
Rewrote note to include information about StormScope map
overlay management.
Updated screen image in figure 8-8, “StormScope Overlay.”
Added “Visual APPR” to figure 8-10, “Map Setup Functional
Diagram.”
Added “Visual APPR” feature and range selections to table
8-1, “Map Setup Map Options.”
Added “Visual APPR Selector” subsection.
Updated screen image in figure 8-24, “Point Obstacle
Detail.”
Updated screen image in figure 8-25, “Wire Obstacles”
Updated range selections to table 8-6, “Map Setup Aviation
Options.”
Revised viewing range distance selections in table 8-9, “Map
Setup Airspace Options.”
Rewrote “Airspace Labels” subsection for clarity.
Updated call out for figure 8-33, “Map Data Fields
Selection.”
Rewrote paragraph for clarity.
Added “active leg course and TO waypoint” flight plan
features to paragraph.
Revised captions in figures 8-41, “Drag Selected Leg to New
Waypoint.”
Revised captions in figures 8-42, “Completed Flight Plan
with New Waypoint.”
Revised note content regarding “graphically editing a flight
plan.”
Revised not with updated Advisory Circular
Section 9 - Traffic
9.9
9-37
Added “TCAS II” section.
Section 10 - Terrain
10.6.6
10-60
Updated title heading.
GTN 625/635/650 SW v6.30 Pilot’s Guide Upgrade Supplement 190-01004-18 Rev A
Section
Page
11.1
11-2
11-3
11.1.1
11-4
11.1.4
11-8
11.1.15
11.1.16
11-22
11-23
11.2.2
11.2.3
11.2.6
11.3.3.1
11.4
11-30
11-31
11-35
11-49
11-50
Description
Section 11 - Weather
“City Forecast and Surface Analysis” added to figure 11-3,
“SiriusXM Weather Page Functional Diagram.”
Update figure 11-4, “SiriusXM Weather Page.”
Added “Touch the SiriusXM Timestamp” step #4.
Add figure 11-6, “Timestamp Display.”
Updated table 11-1, “SiriusXM Weather Products and Data
Timing.”
Added “City Forecast” section.
Added “Surface Analysis” section.
Added “HDG N/A” detail to StormScope note.
Revised figure 11-51, “StormScope 360 and Arc Display
Views.”
Added cross reference to associated map overlay section.
Revised note content regarding “Auto Request.”
Added note regarding FIS-B weather limitations.
Added note about FIS-B color transitions.
Rewrote paragraph for clarity.
Section 14 - Utilities
14.1
14-4
Updated screen image in figure 14-5, “VCALC Page.”
Section 15 - System
15.1
15-3
15.2.2
15.2.4
15.4.1
15-8
15-9
15-17
Updated screen image in figure 15-3, “System Status Page
Description.”
Added “GAGAN” detail to SBAS provider list.
Added “GPS Faults” section.
Added note regarding ILS CDI Capture Key functionality.
Section 16 - Messages
16-5
16
16-23
Added “Database - Terrain database is not installed, is
corrupt, or is not valid for this system” message to table
16-1.
Added “Visual Approach Not Active - Approach guidance no
available when requesting Direct-To runway” message to
table 16-1.
GTN 625/635/650 SW v6.30 Pilot’s Guide Upgrade Supplement 190-01004-18 Rev A
Section
Page
18.1
18.2.4.1
18-3
18-15
18-18
18.3
18.5
18-19
18-25
Description
Section 18 - Appendix
Added GAGAN to glossary
Rewrote section for clarity.
Updated screen image in figure 18-7, “Demo Mode Setup.”
Updated screen image in figure 18-9, “Demo Mode
Navigation Settings.”
Rewrote “Voice Command Instructions” subsection for
clarity.
Added cross-reference to associated activation/deactivation
instructions.
GTN 625/635/650 SW v6.30 Pilot’s Guide Upgrade Supplement 190-01004-18 Rev A
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 60 V/m for
controlled environment and 28 V/m for uncontrolled environment.
Foreword
Getting
Started
Audio &
Xpdr Ctrl
NOTE: Do not use SafeTaxi functions as the basis for ground
maneuvering. SafeTaxi functions do not comply with the requirements
of AC 120-76C and are not qualified to be used as an airport moving
map display (AMMD). SafeTaxi is to be used by the flight crew to orient
themselves on the airport surface.
Com/Nav
FPL
NOTE: The FAA has asked Garmin to remind pilots who fly with Garmin
database-dependent avionics of the following:
Direct-To
Proc
• 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 at
www.flyGarmin.com.
• 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. To see if an exclusion report exists for a specific
database, visit www.flyGarmin.com.
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
v
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
1.4
Unit Power Up
The GTN 6XX System is integrated with the aircraft electrical system and
receives power directly from electrical buses. The GTN 6XX and supporting
sub-systems include both power-on and continuous built-in test features that
exercise the processor, memory, external inputs, and outputs to ensure safe
operation.
1.4.1
Start-Up Screens
During system initialization, test annunciations are displayed. All system
annunciations should disappear typically within the first 30 seconds after
power-up. Upon power-up, key annunciator lights also become momentarily
illuminated on the GTN 6XX display bezel.
The splash screen displays the following information:
• Copyright
• Database List and System version
• Instrument Panel Self-Test
Currently installed database information includes valid operating dates,
cycle number, and database type. When this information has been reviewed for
currency (to ensure that no databases have expired), the pilot is prompted to
continue. Databases that are not current will be shown in amber.
During the startup process the user may be asked if they would like to update
to newer databases. Additional information on database updates can be found
in section 18.2.
The COM and NAV radios, transponder controls, and GDL 88 control panel
are displayed on the Start-Up screens. Some functions may be unavailable until
after the databases are verified.
Messages
Symbols
1 - Copyright
Appendix
2 - SW & Database
Versions & Dates
Figure 1-10 System Startup Pages
3 - Panel Self-Test
Index
1-6
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Foreword
Getting
Started
Audio &
Xpdr Ctrl
1.9
VFR and IFR Procedures
Visual approaches and IFR procedures (SIDs, STARs, and instrument
approaches) are available using the PROC (Procedures) key.
Select a Visual or Instrument Approach
1. Touch the PROC key on the Home page.
Com/Nav
2. Touch the Approach key and then touch the Airport key to
select the desired airport if it is not present.
3. Touch the Approach key, if necessary. Select the desired
approach.
FPL
Direct-To
4. Touch the Transition key and then touch the key for the
desired transition. Visual approaches do not have selectable
transitions.
Proc
Wpt Info
5. Touch the Load Approach key to load the approach at the
end of the active flight plan. The Active Flight Plan page will
be displayed.
Map
Traffic
6. Or, touch the Load APPR & Activate key for the flight plan
to go Direct-To the selected transition or provide guidance on
the final approach course for vectored or visual approaches.
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
1-18
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
1.10
Dead Reckoning
Foreword
Dead reckoning is a feature that enables the GTN to provide limited navigation using the last known position and speed after a loss of GPS navigation
while on an active flight plan.
CAUTION: Navigation using dead reckoning is only an estimate and
should not be used as the sole means of navigation. Use other means of
navigation, if possible.
Dead reckoning becomes active after a loss of GPS position while navigating
using an active flight plan and the flight phase is either En Route (ENR) or
Oceanic (OCN).
“DR” will be overlayed on the ownship icon. The To/From flag is removed
from the CDI. The Dead Reckoning annunciator (DR) appears on the lower
left side of the map display and will replace ENR or OCN when a GPS position
is unavailable and the unit is in Dead Reckoning mode. All external outputs
dependent on GPS position are flagged.
Terrain will be noted as not available and new terrain advisory pop-ups
will not occur. Traffic and StormScope information will not be shown on the
Map page, but will continue to be available on their own dedicated pages. XM
weather will still be available on the Map page.
Dead Reckoning mode will continue until GPS position is restored, when GPS
navigation is restored Dead Reckoning mode is exited. The DR annunciations
will be removed and GPS information will be used to compute navigation related
information for the current flight phase.
Dead Reckoning is only allowed in En Route and Oceanic phases of flight.
If the unit is in a Terminal or Approach phase of flight when Dead Reckoning
takes place, “No GPS Position” will be displayed on the map pages and all
navigation data will be dashed. If you are operating in Dead Reckoning mode
and a transition to Terminal or Approach phases of flight would occur from the
projected Dead Reckoning position, Dead Reckoning mode will be discontinued.
“No GPS Position” will be displayed on the map pages and all navigation data
will be dashed. For information about GPS faults, refer to section 15.2.4.
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
Garmin GTN 625/635/650 Pilot’s Guide
1-19
2.1.7
Extended Squitter Transmission
When interfaced with a compatible transponder, the GTN can act as a control
for the Extended Squitter functions. When “Enable ES” is selected, the GTX
turns on Extended Squitter (ES) transmissions.
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Touch To Enter
Flight ID
Touch To Toggle
Extended Squitter
Com/Nav
FPL
Direct-To
Figure 2-16 Transponder Menu With Extended Squitter Capability
1. While viewing the Transponder (XPDR) page, touch the Menu
key and then the Enable ES key to toggle Extended Squitter
Off and On.
2. Touch the Flight ID key and use the keypad to select a Flight
ID and then touch Enter.
3. After selecting a Flight ID, the selected value will be shown in
the Flight ID key.
2.1.8
Proc
Wpt Info
Map
Traffic
Terrain
TCAS II Transponder Mode Controls
Weather
NOTE: This feature is available in software v6.30 and later.
The GTN can control the modes of a TCAS II system through a GTX 3000.
The TA Only and TA/RA modes are added to the transponder control panel.
Selecting TA Only or TA/RA will command the TCAS into the selected mode.
Depending on the aircraft configuration (e.g., on ground), the TCAS may stay
in a different mode.
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Touch To Select
TCAS II Mode
Appendix
Figure 2-17 TCAS II Transponder Control Panel
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
2-9
8. Touch the Name or Frequency keys to edit the displayed
name or frequency, if desired.
Touch To Edit User
Frequency Name
Foreword
Getting
Started
Touch To Edit User
Frequency Value
Audio &
Xpdr Ctrl
Com/Nav
Touch To Delete
User Frequency
FPL
Direct-To
Figure 3-24 Edit The User Frequency
3.3.4
Emergency Frequency
Proc
The GTN 635 or 650 emergency frequency select provides a quick method
of selecting 121.50 MHz as the active frequency in the event of an in-flight
emergency. The emergency frequency select is available whenever the unit is on,
regardless of GPS or cursor status, or loss of the display.
To quickly tune and activate 121.50, press and hold
volume knob or the external remote Com flip-flop key for
approximately two seconds.
NOTE: Pressing and holding the remote Com FLIP/FLOP key for
approximately two seconds, on units so configured, will lock the COM
board, preventing further changes in Com frequency until the Com board is
unlocked, by pressing the remote Com FLIP/FLOP key again for two seconds.
The following message will notify the pilot that the Com board has been
locked: “COM LOCKED TO 121.5 MHZ. HOLD REMOTE COM TRANSFER
KEY TO EXIT.”
NOTE: Under some circumstances if the Com system loses communication
with the main system, the radio will automatically tune to 121.50 MHz for
transmit and receive regardless of the displayed frequency.
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
3-11
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
4.2
Active Flight Plan Page
The Active Flight Plan Page provides information and editing functions for
the flight plan currently in use for navigation. Once you have activated a flight
plan, the Active Flight Plan Page shows each waypoint for the flight plan, along
with the Desired Track (DTK), Distance (DIST) for each leg and Cumulative
Distance (CUM). The data fields are user-selectable and may be changed to
display Cumulative Distance (CUM), Distance (DIST), Desired Track (DTK), En
Route Safe Altitude (ESA), or Estimated Time of Arrival (ETA).
DTK Between Legs *
DIST Between Legs *
Direct-To
Proc
Origin and Destination Waypoints
Flight Plan Menu Options
Active Leg Navigation
Wpt Info
Parallel Track Active
Map
Up/Down Keys to Scroll FPL
Traffic
Terrain
Weather
Figure 4-7 Active Flight Plan Page
* The field types may be changed using the Edit Data Fields function in the
Flight Plan page Menu.
4.2.1
Nearest
Waypoint Options
1. While viewing the Active Flight Plan page, touch the desired
flight plan waypoint. The Waypoint Options window will be
shown.
Services/
Music
Waypoint Options
List For KLAX
Utilities
System
Selected Wpt
Touch Key To
Select Option
Messages
Symbols
Figure 4-8 Active Flight Plan Wpt Options
Appendix
2. Touch one of the options to perform the selected action. Cancel
the option selection by touching the Back key.
Index
4-4
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
4.3.3
Parallel Track
Parallel Track allows you to create a parallel course offset of 1 to 99 NM to
the left or right of your current flight plan. After setting a parallel track to your
current flight plan, a magenta parallel track line will be drawn offset from the
original by the selected distance. The original course line will be drawn in gray.
The aircraft will navigate to the parallel track course line and external CDI/HSI
guidance will be driven from the parallel track.
When you reach the end of the flight plan, a message will state, “Parallel
offset terminating in X seconds.” The message will be given when the aircraft
reaches the offset distance from the end of the parallel track. This will give the
pilot sufficient time to intercept the original course.
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Figure 4-43 Parallel Track Description
NOTE: In software v6.21 and earlier, graphically editing a flight plan cancels
the parallel track function.
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
4-23
6
PROCEDURES
Foreword
The GTN 6XX allows you to fly non-precision and precision approaches to
airports with published instrument approach procedures. The system can also
provide visual approach guidance to most airports.
The Procedures Page is displayed by touching the PROC key on the Home
page. The Procedures Page provides access to approaches, departures and
arrivals. Selections are also shown to: Activate Approach, Vectors to Final, and
Activate Missed Approach.
NOTE: Baro-corrected altitude is not required by the GTN unit to meet
the requirements of TSO-C146c; however, to take full advantage of the
GTN unit's capabilities, an optional baro-corrected altitude source is
recommended for automatic sequencing of altitude leg types. If no barocorrected altitude data is provided to the GTN unit, altitude leg types must
be manually sequenced.
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
6-1
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
6.1
Basic Approach Operations
The GTN 6XX provides lateral and, when appropriate, vertical guidance
for visual and GPS/RNAV approaches. The moving map pages can also be used
as an aid to situational awareness for ILS, VOR, and NDB approaches (and
non-precision localizer-based approaches), but the appropriate radio navigational
aid MUST be used for primary approach course guidance for non-GPS approaches.
Approaches designed specifically for GPS are often very simple and don’t require
overflying a VOR or NDB. Currently, many non-precision approaches have “GPS
overlays” to let you fly an existing procedure (VOR, VOR/DME, NDB, etc.) more
accurately using GPS.
Many overlay approaches are more complex (in comparison to GPS-only
approaches). The GTN 6XX displays and guides you through each leg of the
approach — automatically sequencing through each of these legs, up to the missed
approach point (MAP). Approaches may be flown “as published” with the full
transition — using any published feeder route or initial approach fix (IAF) — or
may be flown with a vectors-to-final transition.
Phase of flight annunciations are provided on the bottom of the display indicating the current mode of flight.
Procedures are arranged around the existing flight plan in the following order:
Departure, En Route, Arrival, and Approach. For example, Departure waypoints
are inserted before the En Route waypoints in the flight plan and Arrival waypoints
are inserted between the En Route waypoints and the approach waypoints. Always
verify that the transition waypoints between each phase are correct.
Services/
Music
Utilities
System
Departure
Arrival
Airport
Departure
Runway
Transition
Preview
Load Departure
Messages
Symbols
Appendix
Index
Approach
Airport
Arrival
Transition
Runway
Preview
Load Arrival
Airport
Approach
Transition
Channel/ID
Preview
Load Approach
Activate Approach
Figure 6-1 Procedures Functional Diagram
6-2
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Annunciation
Description
LPV
Localizer Performance with Vertical guidance (LPV) approach. Fly to LPV
minimums.
Localizer Performance using published LP minima. Advisory vertical guidance is
provided. Fly to LP minimums.
Localizer Performance with no vertical guidance. Fly to LP minimums.
Advisory visual approach with vertical guidance based on advisory terrain
avoidance calculations. CDI scaling is identical to LPV approaches.
Lateral Navigation and Vertical Navigation (LNAV/VNAV) approach. Fly to
LNAV/VNAV minimums.
GPS approach using published LNAV minima. Advisory vertical guidance is
provided. Fly to LNAV minimums.
Lateral Navigation approach. Fly to LNAV minimums.
Missed Approach indicates the system is providing missed approach integrity
and CDI full-scale deflection ±0.3 NM.
En route, CDI full-scale deflection is 2.0 NM or current CDI scale selection,
whichever is smaller.
Terminal, CDI full-scale deflection is 1.0 NM or current CDI scale selection,
whichever is smaller.
LP +V
LP
VISUAL
L/VNAV
LNAV+V
LNAV
MAPR
ENR
TERM
DPRT
OCN
LOW ALT
(lower window)
Foreword
Departure, indicates the system is using non-precision approach integrity.
CDI full-scale deflection is 0.3 NM.
Oceanic, CDI full-scale deflection is 2.0 NM.
For LNAV+V, LNAV/VNAV, or LPV approaches, the LOW ALT annunciation
indicates the aircraft’s estimated height is lower than the Final Approach
Waypoint height by approximately 50 meters. This annunciation will not be
active when TAWS is operational.
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Table 6-1 Phase of Flight Annunciations
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
6-3
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Touch To Select
Or Remove
Arrival
Scroll To View
Flight Plan
With Departure
Waypoints
Touch To Edit
Waypoint
Figure 6-14 Flight Plan With Arrival Loaded
6.4
Selecting an Approach
Only one approach can be loaded at a time in a flight plan. If an approach
is loaded when another approach is already in the active flight plan, the new
approach replaces the previous approach. The route is defined by selection of an
approach, the transition waypoint, and a runway.
NOTE: In software v6.21 and later, the pilot may load an alternate
approach during a missed approach procedure. The GTN retains all
missed approaches in the flight plan.
Wpt Info
Map
1. Touch the PROC key on the Home page. The Approach, Arrival,
and Departure fields will be dashed until a selection is made.
Traffic
Terrain
Touch To Select Departure
Weather
Touch To Select Arrival
Nearest
Touch To Select Approach
Services/
Music
Figure 6-15 Procedures Selection Window
Utilities
2. Touch the Approach key on the Procedures page to select
an approach for the destination airport. Confirm that the
intended airport is shown or touch the Airport key and select
the desired airport.
System
Messages
Symbols
Appendix
Index
6-8
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Touch To Select Airport
Foreword
Touch To Select Approach
Getting
Started
Touch To Select Channel ID
Audio &
Xpdr Ctrl
Com/Nav
FPL
Figure 6-16 Selecting an Approach
3. Touch the Approach key on the Procedures-Approach page
and then touch the key for the desired approach. Selections
are listed according to approach type: instrument first, visual
second.
Direct-To
Proc
Wpt Info
Map
Touch To Select Approach
Traffic
Terrain
Weather
Figure 6-17 Selecting an Approach from the List
4. After selecting the approach for the destination airport, the
approach overview will be displayed.
Nearest
Services/
Music
Touch To Select
Airport
Touch To Select
Approach
Utilities
Touch To Select
Transition
Touch To Select
Channel/ID
System
Touch To Preview
Approach
Touch To Activate
Approach
Messages
Symbols
Touch To Load Approach
Figure 6-18 Selected Approach Overview
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
6-9
6.13
Visual Approach Procedures
Foreword
NOTE: This feature is available in software v6.30 and later. Not all airports
in the database support visual approaches.
The GTN generates visual approaches, providing advisory horizontal and
optional vertical guidance for the selected runway. Advisory guidance aids in
the performance of a stabilized approach and ensures the aircraft is in line with
the destination runway.
There are three different methods for loading and activating visual approaches.
Method 1: Select the Visual key on the map. When the aircraft is within 10
NM of the destination airport the Visual key displays. For information about
key configuration, refer to "Visual Approach Selector".
Destination
Airport
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Touch To
Load Visual
Approach For
Destination
Airport
Traffic
Terrain
Weather
Figure 6-25 Visual Approach Key Flying Near Destination
Method 2: Select the Visual key located on the left edge of the screen. This
key appears when a visual approach supported airport is selected on the map
during pan mode.
Touch To
Load Visual
Approach
For Selected
Airport
Selected
Airport
Nearest
Services/
Music
Utilities
System
Messages
Figure 6-26 Visual Approach Key When Selecting Airport
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
6-21
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
For both methods, pressing the Visual key prompts a list of available visual
approaches. Once selected, the visual approach immediately loads and becomes
active.
Method 3: Visual approaches load from the PROC – Approach page or the
Airport Info - Procedures tab (similar to published instrument approaches). For
information on how to use this page, see section 6.4.
After a visual approach loads, a confirmation pop-up prompts, detailing
the glidepath angle (GPA) and threshold crossing height (TCH) when vertical
guidance is available. When unavailable it reads, “NO VERTICAL GUIDANCE."
Direct-To
Proc
Wpt Info
Map
Vertical Guidance Available
Vertical Guidance Unavailable
Figure 6-27 Visual Approach Configuration Pop-up
Traffic
The availability of vertical guidance advisories for visual approaches is
dependent on terrain and obstacle obstructions along the approach path.
If no known obstructions are within the approach path, vertical guidance is
provided to a maximum distance of 28 NM from the runway. If there are known
obstructions further than 3 NM, but within the 28 NM maximum distance from
the runway along the approach, vertical guidance is limited to the approach path
portion after crossing the known obstructions. This is indicated by the shortened
magenta line on the map after loading the approach. If obstructions are within
3 NM to the runway, along the approach path, advisory vertical guidance is not
provided. Lateral guidance is always provided for visual approaches.
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Published data is used to determine the visual approach GPA and TCH for
the selected runway. If no published data is available, the default is 3° GPA and
50 FT TCH.
Symbols
NOTE: If the GTN does not have a valid terrain database, advisory vertical
guidance is not available for visual approaches.
Appendix
NOTE: Only external CDI/VDI displays provide vertical deviation indications.
Index
6-22
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
7.2.9
Nearest VRPs
1. Touch the NRST VRPs tab on the Airport Waypoint Info page
to view a list of the visual reporting points that are located
near the selected airport.
Figure 7-16 Waypoint Info Airport NRST VRPs Page
2. Touch the Up and Down keys to view additional information,
as needed.
7-10
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
2. The Lat/Lon coordinate values will be highlighted. Touch the
Lat or Lon key to toggle selection of the hemisphere values
and highlight the selected value. The Large knob may also be
used for cursor movement and characters selected with the
Small knob. Use the Large knob to backspace or move the
cursor to the left.
Foreword
Getting
Started
Audio &
Xpdr Ctrl
When The Lat Key Is Touched, The Latitude
Hemisphere Value Is Active For Selection
Com/Nav
FPL
Touch To Toggle
Lat/Lon Selection
Touch to Select
Hemisphere Value
Touch to Select
Numeric Values
Direct-To
Proc
Figure 7-28 Waypoint Info - Set Lat/Lon Coordinates
3. Touch the desired hemisphere keys to select the desired values.
After selecting the hemisphere value, the cursor will advance to
the first character of the adjacent numeric value for selection.
Even when the hemisphere values are highlighted, touching
a valid numeric key will always place the cursor at the first
numeric value. The Large knob may also be used for cursor
movement and characters are selected with the Small knob.
Wpt Info
Map
Traffic
Terrain
Weather
NOTE: When editing values, turn the Large knob counter-clockwise to
backspace or move the cursor to the left.
Nearest
4. As each value is selected, the cursor will advance to the next
character. Touch the necessary key for the desired values.
Services/
Music
5. When finished with the Lat/Long selections, touch the Enter
key.
Utilities
6. When finished with all selections, touch the Create key to
create the new waypoint.
System
Messages
Symbols
Appendix
Index
7-20
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
8.1.1.5
NEXRAD (Optional)
The NEXRAD menu option allows the display of NEXRAD Precip weather
information overlayed on the Map page. Terrain and NEXRAD Precip weather
may not be displayed at the same time. Selecting one will disable the other.
NEXRAD Precip weather is an optional feature that requires the installation of
a GDL 69/69A, GDL 88, GTX 345, or GSR 56 and an appropriate Weather
subscription. Only one weather source can be displayed at a time (i.e., FIS-B and
XM cannot be displayed on the map simultaneously. See the Weather section for
more detail.
While viewing the Map Menu, touch the NEXRAD Map Overlay
key to toggle the view of NEXRAD weather data.
Proc
Wpt Info
NEXRAD
Product Age
Map
NEXRAD
Weather
Traffic
Figure 8-7 NEXRAD Map Overlay
Terrain
Weather
Nearest
Services/
Music
8.1.1.6
StormScope® (Optional)
The WX-500 StormScope Weather Mapping Sensor is a passive weather
avoidance system that detects electrical discharges associated with thunderstorms
within a 200 NM radius of the aircraft. The StormScope measures relative
bearing and distance of thunderstorm-related electrical activity and reports the
information to the display. Stormscope and XM Lightning are mutually exclusive.
NOTE: The StormScope map overlay is only displayed if valid aircraft
heading information is available. Refer to the WX-500 Pilot’s Guide for a
detailed description of the WX-500 StormScope.
Utilities
System
1. While viewing the Map Menu, touch the StormScope Map
Overlay key to show the menu for selecting a StormScope radar
weather data display mode: Cell, Strike, Off, or Clear Strikes.
Touch the desired function.
2. StormScope data displays on the Map page. See the Weather
section for more details.
Messages
Symbols
Appendix
Index
8-6
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Foreword
Getting
Started
Icon Shows StormScope
Overlay Is Active
Audio &
Xpdr Ctrl
Figure 8-8 StormScope Map Overlay
Com/Nav
8.1.1.7
Traffic (Optional)
The Traffic Map Overlay option selects whether Traffic data is shown on the
Map page. A Traffic icon will indicate that the Traffic overlay has been selected.
Traffic may or may not be shown depending on the other aircraft's location and
equipment. See the Traffic section for more detail.
While viewing the Map Menu, touch the Traffic Map Overlay key
to toggle the view of Traffic data.
FPL
Direct-To
Proc
Wpt Info
Map
Icon Shows Traffic Overlay
Is Active
Non-Threat Traffic Indication.
Currently 1200 Ft Above And
Rising
Icon Shows Aircraft Is
Receiving TIS Traffic From
Ground Stations When A
GDL 88 Is Connected
(GTN software v5.11 or
earlier)
Traffic
Terrain
Weather
Nearest
Figure 8-9 Traffic Map Overlay
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
8-7
Messages
Symbols
Appendix
Orientation
North Up Above
Visual APPR Sel
Auto Zoom
Auto Zoom Min
Auto Zoom Max
Track Vector Length
Nav Range Ring
Fuel Range Ring
Fuel Reserve Time
Topo Scale
Point Obstacle Rng
Wire Obstacle Rng
Chart Color
Restore Defaults
Services/
Music
Utilities
System
Airport Range
SafeTaxi Diagrams
Runway Extensions
Intersection Range
NDB Range
VOR Range
VRP Range
User Waypoint Range
Airway Range
TFRs
Restore Defaults
Traffic
Terrain
Weather
Road Detail
City Detail
State/Province Names
River/Lake Detail
Restore Defaults
Proc
Wpt Info
Map
Smart Airspace
Show Airspaces
Class B/TMA Range
Class C/TCA Range
Class D Range
Restricted Range
MOA (Military) Range
Other/ADIZ Range
Restore Defaults
Com/Nav
FPL
Direct-To
Range
Type
Restore Defaults
Getting
Started
Audio &
Xpdr Ctrl
Weather Source
Cell Movement
METAR
Cloud Tops
Echo Tops
Lightning
Restore Defaults
Foreword
8.1.2
Index
8-8
Map Setup
Nearest
Figure 8-10 Map Setup Functional Diagram
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
8.1.2.1
Map
The Map option defines the behavior and display of information on the Map
page such as: Orientation, North Up Above, Auto Zoom, Nav Range Ring, Topo
Scale, Obstacle Range, and Restore Defaults. The default values are shown in
bold type.
Feature
Orientation
North Up Above
Visual APPR Selector
Auto Zoom
Wpt Info
Map
Auto Zoom Min
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Auto Zoom Max
Track Vector Length
Nav Range Ring
Fuel Range Ring
Fuel Reserve Time
Topo Scale
Point Obstacle Range
Wire Obstacle Range
Restore Defaults
Selection
North Up, Track Up, Heading Up
Off, 10 NM, 15 NM, 25 NM, 40 NM, 50 NM, 75 NM,
100 NM, 150 NM, 250 NM
Off, 2.5 NM, 4 NM, 5 NM, 7.5 NM,10 NM,
15 NM,25 NM
Off, On
250 ft, 400 ft, 500 ft, 750 ft, 1000 ft, 1500 ft, 2500 ft,
0.5 NM, 0.75 NM, 1 NM, 1.5 NM, 2.5 NM, 4 NM, 5
NM, 7.5 NM, 10 NM, 15 NM, 25 NM, 40 NM, 50 NM,
75 NM, 100 NM, 150 NM, 250 NM, 400 NM
250 ft, 400 ft, 500 ft, 750 ft, 1000 ft, 1500 ft, 2500 ft,
0.5 NM, 0.75 NM, 1 NM, 1.5 NM, 2.5 NM, 4 NM, 5 NM,
7.5 NM, 10 NM, 15 NM, 25 NM, 40 NM, 50 NM,
75 NM, 100 NM, 150 NM, 250 NM, 400 NM
OFF, 30 SEC, 60 SEC, 2 MIN, 5 MIN, 10 MIN, 20 MIN
Off, On
Off, On
30 MIN, 45 MIN, 60 MIN, 90 MIN
Off, On
Off, 4 NM, 5 NM, 7.5 NM, 10 NM, 15 NM
Off, 1 NM, 1.5 NM, 2.5 NM
Returns values to original factory settings
Table 8-1 Map Setup Map Options
Symbols
Appendix
Index
8-10
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
Visual Approach Selector
This option allows you to select the range at which the Visual Approach
Selector becomes active. When the aircraft is within a specified distance of the
destination airport, the Visual key automatically appears in the bottom left
corner of the map. Any values displaying in this area are obscured while the key
is active. To disable this feature, select OFF.
For visual approach procedures, refer to section 6.13.
FPL
Direct-To
Touch to Select
Visual Approach for
Destination
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Figure 8-14 Visual Approach Key
Auto Zoom
With a valid flight plan, the Auto Zoom feature will automatically change the
Map page range depending on the distance to the next waypoint in the flight
plan. If enabled, it will also automatically zoom to the SafeTaxi zoom range
when the aircraft is on the ground. Auto Zoom can be overridden at any time by
manually zooming with the In and Out keys. The Auto Zoom Min selection sets
the minimum range that the display will Zoom in. The Auto Zoom Max value sets
the maximum range the display will Zoom out.
Auto Zoom is re-enabled once one of the following conditions is met:
• A waypoint is sequenced
• The aircraft transitions from “on ground” to “in air”
• A point is reached where the Auto Zoom range matches the manual override
range (known as auto-sync) and will be noted as “Auto” above the map
range value on the map page
• Auto Zoom is toggled off and back on in the Map Setup page
1. While viewing the Map Setup - Map selection, touch the Auto
Zoom key to toggle it On or Off.
2. When Auto Zoom is On the Auto Zoom Min and Max values
will be used.
NOTE: Rotorcraft use a Local Auto Zoom function where Auto Zoom will remain
at the 1500 ft zoom scale until the rotorcraft is above 400 ft GSL or 40 kts.
Index
8-12
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
4. Touch an obstacle on the map and the elevation will be shown.
If there are nearby or overlayed objects (obstacle, airspace,
airport, etc), touch the Next key to step through the nearby
objects.
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Detail at Cursor
Point
Com/Nav
Selected Obstacle
Info and Type
FPL
Touch To Step To
Next Nearby Obstacle
Selected
Obstacle
Direct-To
Proc
Figure 8-24 Point Obstacle Detail
5.
Wpt Info
Touch the Back key to return to the normal map view.
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
8-18
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Wire Obstacle Range
The Wire Obstacle Range option selects whether the power lines are shown
on the Map page at and below the selected Wire Obstacle range. Map ranges
above this value will not show the Wire Obstacle Data.
NOTE: This feature is available in software v5.10 and later and requires
the use of obstacle databases that contain wire obstacle data.
TAWS Alert
Selected
Obstacle
Detail at
Cursor Point
Wire
Obstacle
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Figure 8-25 Wire Obstacles
Map
Traffic
Restore Defaults
Terrain
Returns values to the original factory settings.
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
8-19
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
8.1.2.2
Aviation
The Aviation group selection from the Map Setup Page Menu allows you
to customize the display of Active Flight Plan, Active Flight Plan Waypoints,
Airport size range, SafeTaxi information, Runway Extensions, Intersection/NDB
locations, VOR locations, Airspace Detail, and TFR icons on the Map page. The
feature will be shown at map ranges of the selected value and lower. The options
for each feature are shown in the following table. The default values are shown
in bold type.
Feature
Selection
Off, 7.5 NM, 10 NM, 15 NM, 25 NM, 40 NM, 50 NM, 75 NM,
Airport Range
100 NM, 150 NM
Heliports (Optional) Off, On
Off, 1000 ft, 1500 ft, 2500 ft, 0.5 NM, 0.75 NM, 1 NM,
SafeTaxi Diagrams
1.5 NM
Runway Extensions Off, 1 NM, 1.5 NM, 2.5 NM, 4 NM, 5 NM
Off, 0.75 NM, 1 NM, 1.5 NM, 2.5 NM, 4 NM, 5 NM, 7.5 NM,
Intersection Range
10 NM
Off, 0.75 NM, 1 NM, 1.5 NM, 2.5 NM, 4 NM, 5 NM,
NDB Range
7.5 NM, 10 NM
Off, 10 NM, 15 NM, 25 NM, 40 NM, 50 NM, 75 NM,
VOR Range
100 NM
Off, 0.75 NM, 1 NM, 1.5 NM, 2.5 NM, 4 NM, 5 NM, 7.5 NM,
VRP Range
10 NM
Off, 0.75 NM, 1 NM, 1.5 NM, 2.5 NM, 4 NM, 5 NM, 7.5 NM,
User Wpt Range
10 NM, 15 NM, 25 NM, 40 NM, 50 NM, 75 NM, 100 NM
Airspace Detail
None, Least, Less, Normal, More, Most
Airway Range
2.5 NM, 4 NM, 5 NM, 7.5 NM, 10 NM, 15 NM, 25 NM
TFR
Off, On
Restore Defaults
Returns values to original factory settings
Table 8-7 Map Setup Aviation Options
Symbols
NOTE: The term “intersection range” means any GPS waypoint included
in the navigation database, and includes waypoints that may not be
intersections of two VOR radials.
Appendix
Index
8-20
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
8.1.2.4
Airspace
The Airspace viewing range options select whether the Airspaces are shown
on the Map and at and below the selected map ranges. Smart Airspace selection
filters the display of airspace appropriate for aircraft altitude. The following
table depicts airspace features and map ranges. Default values are shown in
bold type.
Feature
Selection
Airspace Label Range Off, 7.5 NM, 10 NM, 15 NM, 25 NM, 40 NM, 50 NM
Smart Airspace
Direct-To
Proc
Wpt Info
Show Airspaces
Class B/TMA Range
Map
Class C/TCA Range
Traffic
Class A/D Range
Terrain
Restricted Range
Weather
MOA (Military) Range
Nearest
Services/
Music
Other/ADIZ Range
Utilities
Restore Defaults
Off, On
All, Below 18000 ft, Below 15000 ft, Below 12000 ft,
Below 9000 ft, Below 6000 ft, Below 3000 ft
Off, 5 NM, 7.5 NM, 10 NM, 15 NM, 25 NM, 40 NM, 50 NM,
75 NM, 100 NM
Off, 5 NM, 7.5 NM, 10 NM, 15 NM, 25 NM, 40 NM, 50
NM, 75 NM, 100 NM
Off, 5 NM, 7.5 NM, 10 NM, 15 NM, 25 NM, 40 NM, 50
NM, 75 NM, 100 NM
Off, 5 NM, 7.5 NM, 10 NM, 15 NM, 25 NM, 40 NM, 50 NM,
75 NM, 100 NM
Off, 5 NM, 7.5 NM, 10 NM, 15 NM, 25 NM, 40 NM, 50
NM, 75 NM, 100 NM
Off, 5 NM, 7.5 NM, 10 NM, 15 NM, 25 NM, 40 NM, 50 NM,
75 NM, 100 NM
Returns values to original factory settings
Table 8-10 Map Setup Airspace Options
System
Messages
Symbols
Appendix
Index
8-22
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Airspace Labels
The Airspace Label feature shows the United States airspace system altitude
limits up to a selected range.
NOTE: This feature is available in software v5.10 and later when configured
by the installer.
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
Airspace Labels - On
FPL
Airspace Labels - On
Direct-To
Proc
Figure 8-26 Display of Airspace Labels
Smart Airspaces
Wpt Info
Garmin’s Smart Airspace™ feature aids visual clarity on-screen by deemphasizing airspace that’s well above or below the aircraft’s current altitude.
The vertical separation is 1,000 feet at sea level and the vertical separation will
gradually increase to 2,000 feet until the aircraft reaches 10,000 feet. Anything
above 10,000 feet keeps the 2,000 feet vertical separation.
NOTE: Smart Airspace only changes the depiction of the airspace on the
moving map display. It does not alter the Airspace Alerts that can be set
on the System-Alerts portion of the system.
Smart Airspaces - Off
Map
Traffic
Terrain
Weather
Nearest
Smart Airspaces - On
Services/
Music
Utilities
System
Messages
Figure 8-27 Display of Smart Airspaces (Airspace Borders Grayed
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
8-23
2. From the Map Menu screen, touch the Change User Fields
key.
Foreword
Getting
Started
Touch To Select Data Field
(TRK Currently Shown)
Audio &
Xpdr Ctrl
Touch To Select Data Field
(DIS Currently Shown)
Com/Nav
FPL
Touch To Save Any Changes
Figure 8-33 Map Data Fields Selection
Direct-To
NOTE: Map Data Field Types that use the term "Destination" refer to the
missed approach point (if an approach is loaded) or the final airport in the
flight plan.
Proc
Wpt Info
NOTE: In software v5.13 and earlier, ETE to Destination is not available
when a procedure is loaded and there are waypoints in the Enroute section
of the flightplan.
Map
Traffic
NOTE: Only the bottom right corner data field on the map page can be
configured for a Page or Function. The other three corner data fields are
for Data items only.
Terrain
Weather
3. Touch the corner data field key you want to select. Touch the
Data, Function, or Page keys to select the User Field type.
A list of information types will be displayed.
Nearest
Services/
Music
Utilities
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.
System
Messages
Figure 8-34 Map Data Field Type Selections
Symbols
4. Touch the Up or Down keys or touch the display and drag
your finger to scroll through the list. Touch the desired item
to select it or touch the Back key to cancel selection.
Appendix
Index
8-28
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Map Page Field Type
Foreword
Blackout Mode
DFLT NAV - Default Navigation
Flight Plan - Flight Plan Page
Map - Map Page
Nearest - Nearest Page
NEAR APT - Nearest Airport Page
PROC - Procedures Page
Approach - Approach Page
Arrival - Arrival Page
Departure - Departure Page
Backlight - Backlight Page
Services - Services Page
Traffic - Traffic Page
Terrain - Terrain Page
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Table 8-17 Map Page Field Types of Information
Traffic
Terrain
Weather
Utilities - Utilities Page
Checklist - Checklist Page
Fuel PLAN - Fuel Planning Page
SCHED MSG - Scheduled Messages
Trip PLAN - Trip Planning Page
VCALC - VCALC Page
User FREQ - User Frequencies
WPT INFO - Waypoint Information
Weather - Weather Page
CNXT WX - Connext WX Page
FIS-B WX - FIS-B Weather Page
Stormscope - Stormscope Page
SiriusXM WX - Sirius XM WX Page
OFF - Do Not Display Page Field
8.1.4
Map Detail
The Map Detail feature allows four levels of decluttering to remove map
information. Level 0 shows the most detail and level 3 shows the least detail.
Nearest
Services/
Music
Utilities
System
0
Messages
1
2
3
Figure 8-35 Map Detail (Declutter) Levels
Symbols
Appendix
Index
8-30
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
8.3.3
Graphically Edit Flight Plan Mode
The Edit Flight Plan Mode allows making quick changes to the active flight
plan directly on the display. The process is simply touching the display to start
Map Pan Mode, touching the Graphically Edit FPL key, dragging the desired
leg to a new waypoint or airway, and touching the Done key. When graphically
editing the active flight plan leg, the active leg course and TO Waypoint will be
added to the flight plan as a Direct-To. At any point, a step may be removed by
touching the Undo key or the whole process ended by touching the Cancel key.
The Undo key will remove up to nine steps.
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.
8.3.3.1
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Adding a Waypoint Within an Existing Flight Plan
1. Touch the Map page display. The Map Mode selection keys
will appear. Touch the Graphically Edit FPL key.
Map
Traffic
Current Active Flight Plan
Terrain
Map Pointer Where
Display Was Touched
Weather
Touch To Change FPL
Nearest
Touch Back To Return
To Map Display
Services/
Music
Figure 8-40 Edit Flight Plan Mode
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
8-35
2. Touch and hold the desired leg of the flight plan and drag the
flight plan leg to a new waypoint to add a waypoint to the
active flight plan. The leg may also be dragged to an airway.
The leg being edited will turn cyan.
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Current Active
FPL Waypoints
Com/Nav
Intended New Waypoint
Active Flight Plan Leg
Touch To Return To
Map Display
FPL
Direct-To
Figure 8-41 Drag Selected Leg to New Waypoint
3. Touch the Done key to accept the new flight plan leg or Undo
to maintain the existing flight plan.
Proc
Wpt Info
New Active FPL Waypoint
Map
New FPL Waypoint
Traffic
Active Flight Plan Leg
Touch To Accept
Changes To FPL
Terrain
Touch To Undo Last Step
Weather
Figure 8-42 Completed Flight Plan with New Waypoint
Nearest
4. The aircraft will now navigate according to the new flight plan.
Services/
Music
Utilities
New Active FPL Waypoint
System
Messages
Aircraft Position
Active Flight Plan Leg
Symbols
Figure 8-43 Aircraft Navigates on Edited Flight Plan to New Waypoint
Appendix
NOTE: In software v6.21 and earlier, graphically editing a flight plan
cancels the parallel track function.
Index
8-36
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
8.7
SafeTaxi®
SafeTaxi® is an enhanced feature that gives greater map detail when zooming
in on airports. The airport display on the map reveals runways with numbers,
taxiways with identifying letters/numbers, airport Hot Spots, and airport
landmarks including ramps, buildings, control towers, and other prominent
features. Resolution is greater at lower map ranges (zooming in). When the
aircraft location is within the screen boundary, including within SafeTaxi ranges,
an airplane symbol is shown on any of the navigation map views for enhanced
position awareness.
Designated Hot Spots are recognized at airports with many intersecting
taxiways and runways, and/or complex ramp areas. Airport Hot Spots are
outlined to caution pilots of areas on an airport surface where positional
awareness confusion or runway incursions happen most often. Hot Spots are
defined with a magenta circle or outline around the region of possible confusion.
Map
Taxiway Detail
Taxiway Identification
Traffic
Aircraft Position
Terrain
Figure 8-47 SafeTaxi Depiction on the Navigation Map Page
Weather
Nearest
Services/
Music
Utilities
System
8.7.1
Using SafeTaxi®
Any map page that displays the navigation view can also show the SafeTaxi®
airport layout within the maximum configured range.
During ground operations the aircraft’s position is displayed in reference to
taxiways, runways, and airport features. The nose of the ownship symbol, not
the center, depicts the current location of the aircraft.
NOTE: Do not use SafeTaxi functions as the basis for ground
maneuvering. SafeTaxi adoes not comply with the requirements of
AC 120-76C and is not qualified to be used as an airport moving map
display (AMMD). SafeTaxi is to be used by the flight crew to orient
themselves on the airport surface to improve pilot situational awareness
during ground operations.
Messages
Symbols
Appendix
Index
8-42
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
9.9
TCAS II
Foreword
NOTE: This feature is available with software v6.30 and later.
Getting
Started
WARNING: Traffic information shown on system displays is provided as an
aid in visually acquiring traffic. Traffic avoidance maneuvers are based upon
TCAS II Resolution Advisories, ATC guidance, or positive visual acquisition
of conflicting traffic.
Audio &
Xpdr Ctrl
WARNING: Do not rely solely upon the display of traffic information to
accurately depict all of the traffic information within range of the aircraft.
Due to lack of equipment, poor signal reception, and/or inaccurate
information from other aircraft, traffic may be present but not represented
on the displays.
NOTE: If the installed TCAS II traffic system is not a GTS 8000, refer to
the applicable documentation for system-specific information.
A Traffic Alert and Collision Avoidance System II (TCAS II), such as the
GTS 8000, improves flight safety by monitoring nearby airspace for aircraft flying
with operating transponders. The TCAS II system provides traffic information to
the displays. If separation from other aircraft is within certain limits, the system
issues Traffic Advisories (TAs) assisting the flight crew in the visual acquisition
of traffic, or Resolution Advisories (RAs) providing recommended vertical
guidance maneuvers to resolve traffic conflicts.
9.9.1
TCAS II Theory of Operation
When the TCAS II system is operating in TA/RA or TA Only Mode, the system
interrogates the transponders of other aircraft in the vicinity, and monitors for
their replies. Based on successive replies, the system tracks the range, bearing,
and (if reported) the altitudes of other aircraft. For each detected aircraft
transponder, the system calculates time to, and separation at, the closest point
of approach (CPA) around the potential collision area surrounding own aircraft.
Based on CPA time, own aircraft altitude, and selected TCAS II system mode,
the system determines if a TA or RA should be issued for a detected intruder.
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
9-37
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Altitude
(Feet*)
0 - 1,000
TA Time to CPA
(Seconds)
20
1,000 - 2,350
2,350 - 5,000
5,000 - 10,000
10,000 - 20,000
20,000 and above
25
30
40
45
48
RA Time to CPA
(Seconds)
RA not issued below
1,000 feet
15
20
25
30
35
* System uses pressure altitude except when Radar Altitude is available. Radar Altitude takes precedence over pressure altitude
reporting.
Proc
Table 9-17 Altitude-based TCAS II TA/RA Alert Thresholds
Wpt Info
The TCAS II system categorizes detected traffic into four groups of increasing
collision threat potential:
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
• Other Traffic (OT), displayed as a hollow white diamond, is not currently
a threat.
• Proximate Traffic (PT), displayed as a filled white diamond, is not
currently a threat, but is within 6 nm and ±1,200 feet of the own-aircraft
altitude.
• Traffic Advisory (TA), displayed as a filled yellow circle, indicates traffic is
within 20-48 seconds of a potential collision area. If a Traffic Map is shown,
and the TA traffic is beyond the selected map range, the system displays a
half-TA symbol at the edge of the map at the approximate relative bearing
of the TA traffic. If TA traffic subsequently meets the criteria for an RA, the
system will issue an RA.
• Resolution Advisory (RA), displayed as a filled red square, indicates
traffic is within 15-35 seconds of a potential collision area. If a Traffic
Map is shown, and the RA traffic is beyond the selected map range, the
system displays a half-RA symbol at the edge of the map positioned at the
approximate relative bearing to the RA traffic.
Appendix
Index
9-38
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Symbol
Description
Other Non-threat Traffic
Foreword
Getting
Started
Proximity Advisory
Traffic Advisory (TA)
Audio &
Xpdr Ctrl
Off-scale Traffic Advisory
Com/Nav
Resolution Advisory (RA)
FPL
Off-scale Resolution Advisory
Direct-To
Table 9-18 TCAS II Traffic Symbol Description
9.9.2
Proc
TCAS II with ADS-B
When the GTS 8000 TCAS II is in operating mode, it interrogates Mode-S
transponder data while automatically receiving ADS-B position and velocity
information directly from a comparably equipped aircraft target. The system
attempts to match (or “correlate”) the two surveillance data sources to increase
the preciseness of its target location. When a correlation is made, the system
displays the traffic information for the source determined to be the most
accurate. Any traffic that is not correlated (i.e., only detected by one system but
not the other) is also displayed for the flight crew. This may occur, for example,
if another aircraft is beyond the surveillance range of the TCAS II, but the
GTS 8000 is still receiving position and velocity information from other ADS-B
equipped aircraft. The traffic correlation feature improves the accuracy of the
traffic displayed, while reducing the occurrence of displaying a single target
twice.
NOTE: Aircraft that are surveilled by ADS-B In only will not trigger a TCAS
resolution advisory.
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
9-39
Foreword
Getting
Started
Audio &
Xpdr Ctrl
9.9.3
TCAS II Alerts
When the TCAS II unit issues a TA or RA, the following occur:
• A ‘TRAFFIC’ annunciation appears in the annunciator bar of the GTN,
flashes for 5 seconds and remains displayed until no TAs or RAs are detected
in the surveillance area.
- RA ‘TRAFFIC’ annunciations are white text with red backgrounds.
Com/Nav
- TA ‘TRAFFIC’ annunciations are black text with yellow backgrounds.
FPL
- If a TA and RA occur simultaneously, only the red and white RA
‘TRAFFIC’ annunciation is shown.
Direct-To
Proc
• If the GTN is not displaying the traffic page, the system displays a traffic
alert pop-up.
Wpt Info
• During a TA event, the system issues a single “Traffic, Traffic” voice alert
each time the system detects a new TA threat.
Map
Traffic
• During an RA event, voice alert(s) provide vertical guidance to resolve the
traffic conflict.
- The Vertical Speed Indicator displays a range of vertical speeds to fly
to or avoid as applicable.
Terrain
- Additional voice alerts occur if the RA status changes and when the
aircraft is clear of the conflict.
Weather
Nearest
Services/
Music
If the traffic system cannot determine the bearing of a Traffic or Resolution
Advisory, the alert will be displayed as a traffic alert banner outlined in the
following table:
Utilities
System
Messages
Symbols
Appendix
Index
9-40
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Traffic Alert Banner
RA X.X ± XX <UP> or <DN>
TA X.X ± XX <UP> or <DN>
Description
• Warning banner displayed when system
unable to determine bearing of Resolution
Advisory (RA) and extreme pilot vigilance
is required.
• Banner indicates distance in nm and
altitude separation in hundreds of feet.
• If altitude trend is available, banner
indicates altitude trend up <UP> for
climbing and down <DN> for descending
traffic.
• Caution banner displayed when
system unable to determine bearing of
Traffic Advisory (TA) and pilot vigilance is
required.
• Banner indicates distance in nm and
altitude separation in hundreds of feet.
• If altitude trend is available, banner
indicates altitude trend up <UP> for
climbing and down <DN> for descending
traffic.
Table 9-19 TCAS II No-Bearing Alert Banners
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
9-41
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
9.9.3.1
Resolution Advisories
Resolution Advisories (RAs) are TCAS II recommended vertical guidance
maneuvers to be flown to resolve a traffic conflict. If the targeted threat
aircraft is also TCAS II equipped, the two traffic systems use Mode S data
link interrogations to generate complimentary responses to the RAs. During
an RA event, the system monitors the performance and status of the aircraft
response. It may command an increase/decrease vertical speed, and/or reverse
climb/descend commands until the aircraft is clear of the conflict.
RAs are categorized in two resolution types, preventive and corrective:
Preventive Resolutions
Preventive RAs are issued when the aircraft's present vertical speed will
resolve a traffic conflict. The system displays a range of vertical speed avoidance
limits. These limits are displayed to help the pilot from climbing or descending
into conflicting traffic.
Corrective Resolutions
Corrective RAs are issued when the aircraft's present vertical speed will
not resolve a traffic conflict. The VSI indicates a range of vertical speeds to be
avoided,while the current vertical speed appears in white with a red background.
For advisory, the VSI indicates a green “fly to” vertical speed range that needs
to be flown to resolve the RA conflict. In some cases, the TCAS II system logic
determines it will be necessary to cross through the intruder aircraft’s altitude to
resolve the traffic conflict.
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
9-42
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
The following tables illustrate Preventive Advisories, Corrective Advisories,
and TCAS II Voice Alerts:
Preventive RA Type
Do Not Climb
Do Not Climb > 500 fpm
Do Not Climb > 1,000 fpm
Do Not Climb > 2,000 fpm
Do Not Descend
Do Not Descend > 500 fpm
Do Not Descend > 1,000 fpm
Do Not Descend > 2,000 fpm
Foreword
Getting
Started
Required Vertical Speed (fpm)
<0
< 500
< 1,000
< 2,000
>0
> -500
> -1,000
> -2,000
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Table 9-20 Preventative RA Types with Required Vertical Speeds
Corrective RA Type
Climb
Crossing Climb
Crossing Maintain Climb
Maintain Climb
Reduce Descent
Descend
Crossing Descend
Crossing Maintain Descend
Maintain Descend
Reduce Climb
Wpt Info
Required Vertical Speed (fpm)
1,500 to 2,000
Map
Traffic
1,500 to 4,400
Terrain
0
- 1,500 to - 2,000
Weather
Nearest
-1,500 to -4,400
Services/
Music
0
Utilities
Table 9-21 Corrective RA Types with Required Vertical Speeds
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
9-43
Alert Type
Foreword
Getting
Started
Audio &
Xpdr Ctrl
TA
Climb RA
Descend RA
Altitude Crossing Climb RA
Com/Nav
Altitude Crossing Descend RA
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Reduce Climb RA
Reduce Descend RA
RA Reversal to Climb RA
RA Reversal to Descend RA
Increase Climb RA
Increase Descent RA
Maintain Rate RA
Altitude Crossing, Maintain Rate RA
(Climb and Descend)
Preventive RA
RA Removed
Voice Alert
"Traffic, Traffic"
"Climb, Climb"
"Descend, Descend"
"Climb, Crossing Climb, Climb, Crossing
Climb"
“Descend, Crossing Descend, Descend,
Crossing Descend"
"Level Off, Level Off"
"Level Off, Level Off"
"Climb - Climb NOW, Climb - Climb
NOW"
"Descend - Descend NOW,
Descend - Descend NOW"
"Increase Climb, Increase Climb"
"Increase Descent, Increase Descent"
"Maintain Vertical Speed, Maintain"
"Maintain Vertical Speed, Crossing
Maintain"
"Monitor Vertical Speed"
"Clear of Conflict"
Table 9-22 TCAS II Voice Alerts
9.9.4
TCAS II System Test
The TCAS II system test is initiated from the traffic menu. During a TCAS
II system test, the system displays a traffic test pattern on the Traffic Page. A
Resolution Advisory (RA) alert annunciation will be displayed with the vertical
speed indicator indicating not to descend nor climb greater than 2,000 feet per
minute. The system test takes approximately eight seconds to complete.
Condition
System Test Passed
System Test Failed
Voice Alert
"TCAS Two System Passed"
"TCAS Two System Failed"
Table 9-23 GTS 8000 System Test Voice Alerts
Index
9-44
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
9.9.5
TCAS II Operation
Foreword
To display TCAS II traffic, the system must be in TA ONLY or TA/RA Mode.
These modes can be accessed from the transponder control panel or the Traffic
Page Menu.
The Traffic Map is the principal map page for viewing TCAS II traffic data.
Traffic data is displayed in relation to the aircraft’s current position and altitude,
without basemap clutter. Aircraft orientation is always heading up unless there
is no valid heading. The map range is adjustable from 2 to 40 nm. Its scale is
indicated by the map range rings.
The traffic operating mode and altitude display mode are annunciated in the
upper left corner of the Traffic Map Page.
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Figure 9-36 TCAS II Traffic Map Page
NOTE: The GTS 8000 TCAS II system automatically selects TA ONLY Mode
when the aircraft is below 1,000’ AGL. After landing, the GTS 8000
automatically selects STANDBY Mode. If the installed TCAS II traffic system
is not a GTS 8000, refer to the applicable documentation for system-specific
automatic traffic mode selections.
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
9-45
Foreword
Getting
Started
Audio &
Xpdr Ctrl
9.9.5.1
Altitude Display
The flight crew can select the volume of airspace in which Other Non-Threat
and proximity traffic is displayed. TAs and RAs outside of these limits will always
be shown. This airspace can be selected by pressing the Altitude Filter button
on the traffic page.
Altitude Mode
Below
Normal
Above
Unrestricted
Com/Nav
FPL
Direct-To
Table 9-24 Displayed Traffic Range
Proc
Wpt Info
Map
Displayed Traffic Range (feet)
-9,900 to 2,700
-2,700 to 2,700
-2,700 to 9,900
-9,900 to 9,900
9.9.5.2
Traffic System Status
The traffic mode is annunciated in the upper left corner of the Traffic Map
pane. If the traffic system fails, or is in test mode, an annunciation is shown in
the center of the Traffic Map.
Traffic
Operating Mode
Terrain
Weather
Nearest
Services/
Music
Utilities
TCAS II Self-Test Initiated
(TEST)
Traffic and Resolution
Advisory ( TA/RA)
Traffic Advisory Only
TCAS II System Standby
TCAS II System Failed
Traffic Page
Annunciation
Test
Traffic Page
Banner
Test Mode
TA/RA
N/A
TA Only
STBY
Fail
N/A
N/A
Failed or No Data
Table 9-25 TCAS II Modes
System
Messages
Symbols
Appendix
9.9.5.3
External Display
If an external traffic display is being controlled by the GTN, it will be
commanded to match the display settings on the GTN (traffic range and altitude
filter). In a dual GTN installation, GTN #1 will control the external display.
The traffic range on the external display will be set to the nearest range to the
selected range on the GTN.
Index
9-46
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Foreword
10.6.5
TAWS-A System Status
Audio &
Xpdr Ctrl
During power-up, TAWS-A conducts a self-test of its aural and visual
annunciations. The system test can also be manually initiated. An aural alert
is issued at test completion. TAWS-A System Testing is disabled when ground
speed exceeds 30 knots.
Com/Nav
10.6.6
Getting
Started
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
TAWS-A Abnormal Operations
TAWS-A continually monitors several system-critical items such as database
validity, flap and landing gear position, radar altimeter input, and GPS status.
If the GTN does not contain Terrain, Airport Terrain, and Obstacle databases
(or the databases are invalid), the aural message “TAWS System Failure” is
generated along with the “TAWS FAIL” alert annunciation.
TAWS-A requires a 3-D GPS navigation solution along with specific vertical
accuracy minimums. Should the navigation solution become degraded or if
the aircraft is out of the database coverage area, the annunciation “TAWS N/A”
is generated in the annunciation window and on the TAWS-A page, the aural
message “TAWS Not Available” is generated if airborne, some TAWS-A terrain
alerts will not be issued, and GPWS alerting (which are not dependent on GPS
position) will continue to operate. When the GPS signal is re-established and the
aircraft is within the database coverage area, the aural message “TAWS Available”
is generated.
TAWS-A also requires radar altimeter input. Should the radar altimeter input
fail or become degraded, the annunciation “GPWS FAIL” is generated in the
annunciation window and on the TAWS-A Page. The aural message “GPWS
System Failure” is also generated. The “GPWS FAIL” annunciation will also occur
if both GPS altitude and barometric altitude are unavailable. If only the GPWS
system has failed, GPWS-based alerts will not be available, while other TAWS-A
alerting remains unaffected.
Multiple TAWS or GPWS annunciations cannot be displayed at the same
time. When multiple annunciations exist, an asterisk will be present next to the
annunciation. The display of each annunciation will alternate with each being
displayed for approximately five seconds.
Appendix
Index
10-60
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
NOTE: Stormscope and XM Lightning are mutually exclusive.
Foreword
Getting
Started
11.1
SiriusXM Weather Products (Optional)
Audio &
Xpdr Ctrl
Com/Nav
FPL
NEXRAD
Direct-To
Off
Proc
US
Canada
Forecast Period
Current
Wpt Info
12 Hour
City Forecast
Surface Analysis
Lightning
Echo Tops
Cloud Tops
METAR
Cell Movement
AIREP/PIREP
County Warnings
Winds Aloft
Surface
SIGMET/AIRMET
Freezing Level
Icing
Turbulence
Cyclone
Orientation
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Track Up
24 Hour
36 Hour
48 Hour
3000 ft ... 45,000 ft
Heading Up
North Up
Legend
Messages
Symbols
Figure 11-3 SiriusXM Weather Page Functional Diagram
Appendix
Index
11-2
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
11.1.1
Displaying SiriusXM Weather
To display SiriusXM weather touch the following sequence of keys starting
from the Home page.
1. Touch the Weather key on the Home page and then touch
the Data Link key.
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
Age Of Selected
Weather
Products
Selected
Altitude
Direct-To
Proc
Touch + or - To
Select Altitude
Wpt Info
Figure 11-4 SiriusXM Weather Page
2. While viewing the Data Link weather page, touch the Menu
key to configure the Data Link Weather page.
Touch Keys To
Select Weather
Product. Green
Bar Indicates
Selected Product.
Weather Overlay
Map Orientation
Touch Legend Key
To Display Legend
FPL
Touch Keys
To Scroll List
Of Products
Map
Traffic
Terrain
Weather
Nearest
Touch And Drag Menu
To Scroll List Of Products
Services/
Music
Figure 11-5 Weather Data Link Menu
Utilities
3. Once you have selected what items you want to display, touch
BACK to return to the Data Link Weather page.
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
11-3
4. Touch the SiriusXM timestamp to view the age of all selected
weather products.
Foreword
Getting
Started
The Timestamp is
Collapsed When All
Weather Products are
Current (Software
v6.30 and Later).
Audio &
Xpdr Ctrl
Com/Nav
FPL
Figure 11-6 Timestamp Display
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
11.1.2
Weather Legend
The Legend key displays a pop-up legend of the currently used weather
products.
1. While viewing the Data Link Weather menu, touch the Legend
key.
Touch Legend And
Slide Finger Up And
Down To Scroll Legend
Legend Of
Selected Weather
Products
Touch To Select
Close Legend
Weather
Touch Up And Down
Keys To Scroll Legend
Figure 11-7 Weather Legend Display
2. Touch the Legend area of the display and while maintaining
light pressure against the display, drag your finger up or down
to scroll through the legend display for the selected weather
products, or use the Up/Down keys.
Nearest
Services/
Music
Utilities
3. Touch the Back key to remove the Legend.
System
Messages
Symbols
Appendix
Index
11-4
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Foreword
Weather Product
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Air Report (AIREP)
Turbulence
Temporary Flight Restriction (TFR)
Terminal Aerodrome Forecast (TAF)
Expiration
Time
(Minutes)
Estimated
Broadcast Rate
(Minutes)
90
180
60
60
15
15
15
10
* Data for longer forecast periods may not be broadcast at this rate.
Direct-To
Table 11-1 SiriusXM Weather Products and Data Timing
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
11-8
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Foreword
Getting
Started
Audio &
Xpdr Ctrl
11.1.15 City Forecast
City Forecast shows the current and future weather conditions for various
cities. The forecast period can be selected in the menu by pressing Forecast
Period.
1. While viewing the Data Link Weather menu, touch the City
Forecast key.
Com/Nav
City Forecast Symbol
FPL
Direct-To
Proc
Figure 11-34 City Forecast
2. Touch the desired forecast time period (Current, 12 Hour, 24
Hour, 36 Hour, or 48 Hour) to display the desired information.
Wpt Info
Map
Touch And Drag Slider To
Scroll Selections
Traffic
Touch To Select Time
Terrain
Weather
Figure 11-35 Select Forecast Time Period
3. Touch any City Forecast symbol to show detailed information.
Touch the Back key to return to the Weather display.
Nearest
Services/
Music
City Forecast Symbol
Utilities
System
Messages
Figure 11-36 City Forecast Conditions Detail
Symbols
Appendix
Index
11-22
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Figure 11-37 City Forecast Legend
11.1.16 Surface Analysis
Direct-To
In software v6.21 and earlier, Surface Analysis and City Forecast are
combined features of the Weather Forecast product.
The Surface Analysis map shows regional weather forecasts for a selected
time period. The map shows high and low pressure centers and their associated
frontal movement.
1. While viewing the SiriusXM Weather Menu, touch the Surface
Analysis key.
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
Figure 11-38 Surface Analysis and Map Legend
2. Touch the Forecast Period key to select the desired time
increment.
System
Messages
Symbols
Appendix
Index
Figure 11-39 Select Forecast Time Period
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
11-23
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
11.2.2
Clearing the StormScope® Page
Routinely clearing the StormScope Page of all discharge points is a good
way to determine if a storm is building or dissipating. In a building storm,
discharge points reappear faster and in larger numbers. In a dissipating storm,
discharge points appear slower and in smaller numbers.
1. While viewing the Weather StormScope page, touch MENU.
2. Touch the Clear Strikes key to clear lightning strikes.
FPL
Direct-To
NOTE: The GTN displays StormScope data with or without a heading source.
If no heading source is available, the "HDG N/A" annunciation appears in
the upper right corner of the page. When flying without a heading source,
the pilot must clear all strikes following each heading change.
Proc
Wpt Info
Map
Traffic
Terrain
11.2.3
Changing the StormScope® Display View
The Lightning Page displays either a 360° or a 120° viewing angle.
1. While viewing the Weather StormScope page, touch MENU.
2. Touch the 360° or Arc to select the display view.
Weather
Nearest
Services/
Music
Utilities
System
Messages
Figure 11-51 StormScope 360º and Arc Display Views
Symbols
Appendix
Index
11-30
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
11.2.4
Changing the StormScope® Data Mode
Foreword
Cell display mode uses a clustering program to locate storm cells instead of
individual discharge points. This mode is most useful during periods of heavy
storm activity. Strike display mode is used during periods of light electrical
activity. It is useful in plotting initial lightning discharges associated with a
building thunderstorm.
1. While viewing the Weather StormScope page, touch MENU.
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
2. Touch the Cell or Strike key to select the display mode.
Direct-To
Proc
11.2.5
Changing the StormScope® Data Display
Range
Wpt Info
Map
StormScope data can be displayed on the Map page 2,000 NM zoom scale,
but the data only goes out as far as the StormScope can report (200 NM). The
500 NM zoom scale will display all lightning data. Scales greater than 500 NM
do not display any additional StormScope data.
1. While viewing the StormScope page, touch the In and Out
keys to display a larger or smaller area.
Weather
11.2.6
Nearest
Displaying StormScope® Data on the Map
Page
The Map Page displays cell or strike information using yellow lightning
strike symbology overlaid on a moving map. This added capability improves
situational awareness, which in turn makes it much easier for the pilot to relate
storm activity to airports, NAVAIDs, obstacles and other ground references.
See Section 8.1.1.6 for details about viewing StormScope data on the Map.
NOTE: The selected lightning display type, cell or strike, will be shown the
same on both the StormScope and the Map pages.
Traffic
Terrain
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
11-31
11.3.3
Connext Settings
Foreword
Touch To
Manually
Request Data
Auto Request
Setting
Coverage Region
Settings
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
Datalink
Status
FPL
Coverage
Diameter
Direct-To
Figure 11-55 Connext Settings Menu
11.3.3.1
Proc
Connext Data Request
It is necessary to request the downloading of weather products. Requests can
be sent manually or set to automatically update at a selected rate. The Connext
weather data may be updated at any time regardless of the automatic update
timing by selecting a Manual Request. When multiple requests are made, some
products are merged with the old data (SIGMETs/AIRMETs, TAFs, TFRs, and
METARs), but the old data of other products is discarded.
1. While viewing the Connext Settings Menu, touch the Request
Data key to manually request data.
2. Touch the Auto Request key to set the Auto Request Period.
NOTE: The Auto Request function is only enabled if the GTN is connected
directly to GSR 56 (software v6.30 and later).
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Touch To Select
Request Period
Messages
Symbols
Figure 11-56 Select Auto Request Period
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
11-35
11.4
FIS-B Weather
Foreword
NOTE: FIS-B information is to be used for pilot planning decisions
and pilot near-term decisions focused on avoiding areas of inclement
weather that are beyond visual range or where poor visibility precludes
visual acquisition of inclement weather. FIS-B weather and NAS status
information may be used as follows:
(a) To promote pilot awareness of own ship location with respect to
reported weather, including hazardous meteorological conditions, NAS
status indicators, and enhance pilot planning decisions and pilot
near-term decision-making.
(b) To cue the pilot to communicate with the Air Traffic Control
controller, Flight Service Station specialist, operator dispatch, or airline
operations control center for general and mission critical meteorological
information, NAS status conditions, or both.
FIS-B information, including, weather information, NOTAMs, and TFR
areas, are intended for the sole purpose of assisting in long- and
near-term planning decision making. The system lacks sufficient
resolution and updating capability necessary for aerial maneuvering
associated with immediate decisions.
The Flight Information Services (FIS-B) function is capable of displaying text
and graphic weather information with GDL 88 and GTX 345 installations. No
subscription for FIS-B services is required.
The FIS-B Function is a graphic weather display capable of displaying
graphical weather information on UAT equipped installations. Graphical data is
overlaid on the map indicating the rainfall detected by ground based radar for a
specific area. The colors indicating increasing levels of rainfall progresses from
light green for light rainfall to magenta for heavy rainfall. Review the Limitations
section in the front of this guide for the limitations that apply to the FIS-B data.
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
11-49
Foreword
Rainfall data is color coded as follows:
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Figure 11-73 FIS-B Weather Precipitation Legend
Gray shaded areas indicate that data is not available or that no data has been
received for a requested area. Gray shades may also indicate that the rainfall rate
for a given area is undetermined.
The FIS-B Function is based on a ground-to-air data link and requires that
the appropriate ground systems are broadcasting weather data and the aircraft is
within reception range of the Ground Broadcast Transceiver (GBT).
Terrain
Weather
Nearest
Services/
Music
NEXRAD
Utilities
METAR
PIREP
Wind/Temp Aloft
Off
System
CONUS
Regional
Combined
1,000 ft ... 53,000 ft
Messages
SIGMET/AIRMET
Orientation
Symbols
Track Up
Appendix
Heading Up
North Up
Legend
Index
Figure 11-74 FIS-B Weather Functional Diagram
11-50
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
Foreword
Getting
Started
Target Altitude
Audio &
Xpdr Ctrl
Altitude Type
MSL
Above Wpt
Com/Nav
VS Profile
FPL
Restore Defaults
Display Messages
Offset
Direct-To
Before/After
Target Waypoint
Proc
Figure 14-4 VCALC Page Functional Diagram
Wpt Info
1. From the Utilities page, touch VCALC.
Map
Traffic
Before/After Target Waypoint
Altitude Type
Terrain
Desired
Vertical Speed
Desired Target
Altitude
Weather
Nearest
Target Waypoint
Desired Distance
From Target Offset
Services/
Music
Vertical Speed
Required For
Target ALT At
Offset
VCALC Status
Message
Utilities
Figure 14-5 VCALC Page
System
2. Select the VCALC items as necessary to set up parameters for
the next waypoint. Touch the Back key when finished.
Messages
Symbols
Appendix
Index
14-4
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
15.1
System Status
Foreword
The System status page of the System function provides information about
the GTN unit and the equipment attached to it. This information is useful if it
is necessary to contact Customer Service. The System Status page shows the
System ID and serial number for the GTN unit, hardware and software versions,
as well as a list of the installed databases.
Serial No., System ID, and
Internal Software Versions
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Database Conflicts
Database Not Active and On
Standby
Proc
Wpt Info
Active Database Information
Figure 15-3 System Status Page Description
Map
Traffic
Terrain
System Info
Serial # & System ID
SW Versions
System Status Menu
Database Info
Database SYNC
Weather
Current
Standby
Conflicts
Nearest
Services/
Music
Figure 15-4 System Status Functional Diagram
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
15-3
Foreword
The Time and other data may not be displayed until the unit has acquired
enough satellites for a fix.
Getting
Started
15.2.2
Audio &
Xpdr Ctrl
SBAS is a system that supports wide area, or regional, augmentation through
the use of additional satellite broadcast messages. WAAS, EGNOS, MSAS, and
GAGAN are known SBAS providers.
Com/Nav
FPL
Satellite-Based Augmentation System (SBAS)
At the time of printing, SBAS providers support the following areas:
• WAAS provides SBAS service for Alaska, Canada, the 48 contiguous
states, and most of Central America.
Direct-To
• EGNOS provides SBAS service for most of Europe and parts of North
Africa.
Proc
• MSAS provides SBAS service for Japan only.
Wpt Info
Map
• GAGAN provides SBAS service for India. Available with GPS software
v5.2 and later.
Traffic
1. While viewing the System page, touch GPS Status.
2. If desired, touch the SBAS key to select an SBAS provider. The
SBAS list is based on the Aviation database.
Terrain
Weather
3. Touch the key for the desired SBAS provider.
Nearest
Services/
Music
Utilities
Figure 15-7 SBAS Selection Page
System
4. Touch the Back key to return to the System Status page.
Messages
Symbols
Appendix
Index
15-8
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
15.2.3
Circle of Uncertainty
Foreword
The Circle of Uncertainty depicts an area where the ownship location is
guaranteed to be when the aircraft location cannot be accurately determined.
The area of the Circle of Uncertainty becomes larger as GPS horizontal accuracy
degrades and smaller as it improves. The Circle of Uncertainty is shown only
when the aircraft is on the ground. The Circle of Uncertainty area is transparent
so that features within it may still be seen.
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Area Within The
Circle Of Uncertainty
Direct-To
Ownship Symbol
Proc
Wpt Info
Figure 15-8 Circle of Uncertainty
15.2.4
GPS Faults
Map
The GTN communicates various fault conditions that can affect the accuracy
of the GPS. These include loss of integrity, loss of navigation, and a loss of
position.
Loss of Integrity
A loss of integrity is when the integrity of the GPS position does not meet the
requirements for the current phase of flight. This only occurs before the final
approach fix (if an approach is active).
The GTN indicates a loss of integrity by displaying the amber "LOI"
annunciation at the bottom of the screen.
Loss of Navigation
A loss of navigation can be caused by any of the following conditions:
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
• Aircraft is after the final approach fix and GPS integrity does not meet the
active approach requirements
Messages
• Insufficient number of satellites supporting aircraft position (i.e., more
than 5 seconds pass without adequate satellites to compute a position)
Symbols
• GPS sensor detects an excessive position error or failure that cannot be
excluded within the time to alert
Appendix
• On-board hardware failure
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
15-9
Index
Foreword
The GTN indicates a loss of navigation by invalidating the active course
guidance, and issuing a system message describing the cause.
Getting
Started
Loss of Position
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
If the GTN cannot determine a GPS position solution, the ownship icon
disappears and the amber "No GPS Position" annunciation appears across the
map pages. For information about managing limited navigation features, refer
to section 1.10.
15.3
External LRUs
The External LRU page displays the external equipment connected to the
GTN and their connection status.
Proc
1. While viewing the System page, touch the External LRUs key.
Wpt Info
LRU Available And
Communicating
Map
LRU Not Available
Or Communicating
Traffic
Touch For More
Information
Figure 15-9 External LRU Page
Terrain
2. When more information is available about the listed units,
touch the More Info key to view the information.
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
15-10
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
1. While viewing the System Setup page, touch the CDI key.
Touch To Choose Auto or
Manual CDI Scale Selection
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Touch To Select ILS CDI
Capture Type
Com/Nav
Figure 15-21 CDI Selection
2. Touch the CDI Scale key to toggle between automatic selection
or to choose the CDI scale manually.
FPL
Direct-To
Proc
Touch To Select CDI Scale
Wpt Info
Map
Figure 15-22 CDI Scale Selection
3. Touch the ILS CDI Capture key to select Auto Switch or Manual
Selection. This feature enables the unit to automatically switch from
GPS to VLOC on an ILS approach. See Procedures-ILS Approaches
for more detail on ILS approaches.
NOTE: The ILS CDI Capture key may be disabled in certain GTN installations.
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
15-17
Message
CROSSFILL
ERROR - GTN
Navigation DB
mismatch. See
CRG for crossfilled
items.
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.
DATABASE Terrain database
is not installed,
is corrupt, or is
not valid for this
system.
DATABASE Terrain display
unavailable for
current location.
Description
Action
Foreword
The navigation
databases do not
match between GTNs
resulting in a loss
of communication
between two units.
Check the specified database
version of both GTNs and ensure it
is up-to-date. Update the specified
database if needed.
Crossfill is configured
“on” but is not working
due to software
mismatch.
See section 15.4.5 for a list of
crossfilled items that will no longer
be crossfilled. Contact dealer to
have software versions updated.
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Crossfill is turned off.
Wpt Info
No action.
Map
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 terrain database
is not available and
terrain information
alerts will not be
displayed.
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.
The aircraft is outside
the terrain database
coverage area.
Terrain and TAWS functions will
be unavailable. If terrain coverage
is desired in the area, load
appropriate coverage area on the
external datacard.
Re-load this database on the
external datacard.
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
16-5
Message
USER WAYPOINT
IMPORT - User
waypoint import
failed. User
waypoint database
is full.
USER WAYPOINT
IMPORT - User
waypoints
imported
successfully existing waypoints
reused.
VCALC Approaching top of
descent.
Description
Action
Foreword
User Waypoint catalog Edit the User Waypoint catalog to
is full and the requested remove unneeded user waypoints.
user waypoints could
not be imported.
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
User waypoints
imported and existing
waypoints are used
instead of creating
duplicate waypoints.
No action is necessary; message is
informational only.
FPL
Direct-To
Proc
Wpt Info
User has configured
a vertical descent
calculation, and the
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.
Visual approach could
VISUAL
APPROACH NOT not transition to
active. Guidance is not
ACTIVE Approach guidance available.
not available when
requesting
direct-to runway.
No action is necessary; message is
informational only.
Map
Traffic
Terrain
No action is necessary; message is
informational only.
Weather
Nearest
Services/
Music
Reactivate the approach or cancel
the Direct-To course.
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
16-23
En Route Safe Altitude
ERR
ESA
ETA
ETE
The recommended minimum altitude within ten miles
left or right of the desired course on an active flight
plan or direct-to
error
En route Safe Altitude
Estimated Time of Arrival
Estimated Time En Route
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
ºF
FAA
FCC
FCST
FD
FIR
FIS-B
FISDL
FLTA
FPL
FREQ
FRZ
FSS
ft
degrees Fahrenheit
Federal Aviation Administration
Federal Communication Commission
forecast
flight director
Flight Information Region
Flight Information Services-Broadcast
Flight Information Service Data Link
Forward Looking Terrain Avoidance
flight plan
frequency
freezing
Flight Service Station
foot/feet
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
GAGAN
G/S, GS
GDC
GDL
GEO
GLS
GMA
GMT
GMU
GPS
GPSS
Ground Speed
Ground Track
GRS
GS
190-01004-03 Rev. M
Provides SBAS service for India
glideslope
Garmin Air Data Computer
Garmin Satellite Data Link
geographic
Global Navigation Satellite Landing System
Garmin Audio Panel System
Greenwich Mean Time
Garmin Magnetometer Unit
Global Positioning System
GPS Roll Steering
The velocity that the aircraft is travelling relative to a
ground position
see Track
Garmin Reference System
Ground Speed
GTN 625/635/650 Pilot’s Guide
18-3
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
Database SYNC is supported by these database types:
• Navigation
• Basemap
• SafeTaxi
• Obstacle
• FliteCharts
• Airport Directory
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
The database SYNC process may take several minutes, depending on how
many databases have been updated. The status of the database transfers to a unit
can be viewed on the System Status page under the “Standby” tab. The GTN
will display the source of the received databases (for example: “Database SYNC
- GTN #2”). If a database SYNC is pending, completed, or not authorized, the
status will also be indicated.
When the SYNC is complete, if the aircraft is stopped and has yet to takeoff,
the pilot will be prompted with the option to restart and update to the newly
transferred databases.
NOTE: Restarting the GTN must only be performed when the aircraft is
on the ground as navigation and communication from the restarted unit
will be lost for a period of time.
18.2.4.1
Resolving Database SYNC Conflicts
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Database conflicts must be resolved for synchronization to occur. Conflicts
exist when multiple LRUs have a database of the same cycle, but with different
regions or types (e.g., fixed wing vs. rotorcraft navigation database, different
regions of the navigation database, or different obstacle database types).
The GTN attempts to resolve these by automatically synchronizing the most
recently installed database across all other LRUs (software v6.30 and later). Pilot
intervention is required when conflicts cannot be resolved automatically. Conflicts
occurring with earlier software versions also require manual intervention.
To manually resolve database conflicts, touch the Resolve Conflicts key on
the display containing the desired database version. This key is located on the
Conflicts tab of the System Information page.
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
18-15
Foreword
Getting
Started
Audio &
Xpdr Ctrl
18.3
Demo Mode
The GTN product contains a “Demo” mode that allows simulation of all
operations of the product to allow practice and familiarization while staying on
the ground.
WARNING: Do not use the GTN to navigate while Demo mode is active.
Do not use or enter Demo mode while airborne.
Com/Nav
1. Press in and hold the Direct-To key and then apply power to
the unit.
FPL
Direct-To
Proc
Wpt Info
Touch To Continue
Map
Figure 18-3 Demo Mode Start Up Display
Traffic
Terrain
2. Touch the Continue key and Fuel keys as normally needed to
start operations.
Weather
3. Touch the Demo key in the lower part of the display to reach
the Demo Setup functions.
Nearest
Services/
Music
Utilities
Touch For Advanced
GPS Settings
System
Touch For Advanced
NAV Settings
Messages
Symbols
Touch For Advanced Date
And Time Settings
Figure 18-4 Demo Mode Setup
Appendix
Index
18-18
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. M
4. Touch the GPS key to reach the Demo GPS Settings page.
The Position Error values (Horizontal Protection Level Fault
Detection [HPL FD], HPL SBAS, and Vertical Protection Level
[VPL] SBAS) may be adjusted to reflect errors induced by
naturally occurring conditions, but are normally not adjusted
for most Demo mode operations.
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
Touch To Select GPS
Solution
Touch To Select
Current Position
From A Wpt In
The Database
Touch To Select Lat/
Lon Coordinates For
Current Position
Touch To Select
HPL FD Values, If
Desired
Touch For VPL
SBAS Settings
FPL
Direct-To
Proc
Wpt Info
Touch For HPL
SBAS Settings
Map
Figure 18-5 Demo Mode GPS Settings
5. Touch the Nav key to reach the Demo Navigation Settings
page.
Touch To Select
Vertical Speed
Touch To Select
Altitude
Touch To Select
Airspeed
Touch To Select
Track Mode
Touch To Select
Time Scale
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
Figure 18-6 Demo Mode Navigation Settings
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
18-19
Voice Command Instructions
Foreword
1. Press and hold the Push to Command (PTC) switch.
Getting
Started
2. Speak the entire command into the headset MIC.
3. Release the "PTC" switch.
• A positive tone (low-to-high) indicates the command has been
recognized and executed. (i.e., page changed, radio tuned, MIC
selected, etc.)
• A negative tone (high-to-low) indicates the command is either
unrecognizable or invalid.
Successful Command Example
"Show approaches page” is spoken, the approach selection page displays
immediately, and a positive tone sounds.
Unsuccessful Command Examples
"Show map page” is spoken and the traffic page displays.
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
"Show map page" is spoken and a negative tone sounds.
Traffic
Qualification Procedure
Speak the non-bold phrase if the voice command for a 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. For instructions
on how to activate and deactivate voice commands, refer to section 15.13.
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.
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
190-01004-03 Rev. M
GTN 625/635/650 Pilot’s Guide
18-25
© 2017 Garmin Corporation
www.flyGarmin.com
190-01004-18 Rev A
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