Garmin GTN 725 User manual

Map
Traffic
Terrain
Weather
Procedures
Charts
Waypoint Info
Nearest
System
Services
Utilities
GTN 725/750
Cockpit Reference Guide (CRG)
Flight Plan

Warnings, Cautions, and Notes
GTN 725/750 Cockpit Reference Guide (CRG) 190-01007-04 Rev. D
ii
WARNING: Navigation and terrain separation must NOT be predicated
upon the use of the terrain function. The GTN 725/750 Terrain Proximity
and HTerrain Proximity features are NOT intended to be used as a primary
reference for terrain avoidance and does not relieve the pilot from the
responsibility of being aware of surroundings during flight. The Terrain
Proximity feature is only to be used as an aid for terrain avoidance and is
not certified for use in applications requiring a certified terrain awareness
system. Terrain data is obtained from third party sources. Garmin is not
able to independently verify the accuracy of the terrain data.
WARNING: The displayed minimum safe altitudes (MSAs) are only
advisory in nature and should not be relied upon as the sole source
of obstacle and terrain avoidance information. Always refer to current
aeronautical charts for appropriate minimum clearance altitudes.
WARNING: The Garmin GTN 725/750 has a very high degree of functional
integrity. However, the pilot must recognize that providing monitoring
and/or self-test capability for all conceivable system failures is not
practical. Although unlikely, it may be possible for erroneous operation
to occur without a fault indication shown by the GTN 725/750. It is thus
the responsibility of the pilot to detect such an occurrence by means of
cross-checking with all redundant or correlated information available in
the cockpit.
WARNING: The altitude calculated by GPS receivers is geometric height
above Mean Sea Level and could vary significantly from the altitude
displayed by pressure altimeters, such as the output from the GDC 74A/B
Air Data Computer, or other altimeters in aircraft. GPS altitude should
never be used for vertical navigation. Always use pressure altitude
displayed by pressure altimeters in the aircraft.
WARNING: Do not use outdated database information. Databases used
in the GTN 725/750 system must be updated regularly in order to ensure
that the information remains current. Pilots using an outdated database
do so entirely at their own risk.
WARNING: Do not use basemap (land and water data) information for
primary navigation. Basemap data is intended only to supplement other
approved navigation data sources and should be considered as an aid
to enhance situational awareness.

Warnings, Cautions, and Notes
190-01007-04 Rev. D GTN 725/750 Cockpit Reference Guide (CRG) iii
WARNING: Traffic information shown on the GTN 725/750 is provided
as an aid in visually acquiring traffic. Pilots must maneuver the aircraft
based only uponATC guidance or positive visual acquisition of conflicting
traffic.
WARNING: SiriusXM Weather should not be used for hazardous weather
penetration.Weather information is approved only for weather avoidance,
not penetration.
WARNING: NEXRAD weather data is to be used for long-range planning
purposes only. Due to inherent delays in data transmission and the relative
age of the data, NEXRAD weather data should not be used for short-range
weather avoidance.
WARNING: For safety reasons, GTN 725/750 operational procedures
must be learned on the ground.
WARNING: To reduce the risk of unsafe operation, carefully review and
understand all aspects of the GTN 725/750 Pilot’s Guide as well as this
guide. Thoroughly practice basic operation prior to actual use. During
flight operations, carefully compare indications from the GTN 725/750
to all available navigation sources, including the information from other
NAVAIDs, visual sightings, charts, etc. For safety purposes, always resolve
any discrepancies before continuing navigation.
WARNING: Never use datalinked weather to attempt to penetrate a
thunderstorm. Both the FAA Advisory Circular, Subject: Thunderstorms,
and the Airman’s Information Manual (AIM) recommend avoiding “by at
least 20 miles any thunderstorm identified as severe or giving an intense
radar echo.”
WARNING: Do not use the indicated data link weather product age to
determine the age of weather information shown by the data link weather
product. Due to time delays inherent in gathering and processing weather
data for data link transmission, the weather information shown by the
data link weather product may be significantly older than the indicated
weather product age.

Warnings, Cautions, and Notes
GTN 725/750 Cockpit Reference Guide (CRG) 190-01007-04 Rev. D
iv
CAUTION: The United States government operates the Global Positioning
System and is solely responsible for its accuracy and maintenance. The
GPS system is subject to changes which could affect the accuracy and
performance of all GPS equipment. Portions of the GTN 725/750 utilize
GPS as a precision electronic NAVigationAID (NAVAID).Therefore, as with
all NAVAIDs, information presented by the GTN 725/750 can be misused
or misinterpreted and, therefore, become unsafe.
CAUTION: The Garmin GTN 725/750 does not contain any user-
serviceable parts. Repairs should only be made by an authorized Garmin
service center. Unauthorized repairs or modifications could void both the
warranty and the pilot’s authority to operate this device under FAA/FCC
regulations.
CAUTION: The GTN 725/750 has a display that is coated with a special
anti-reflective coating that is very sensitive to waxes and abrasive
cleaners. CLEANERS CONTAINING AMMONIA WILL HARM THE ANTI-
REFLECTIVE COATING. It is very important to clean the display using a
clean, lint-free cloth and an eyeglass lens cleaner that is specified as safe
for anti-reflective coatings.
CAUTION: TFRs provided by the GDL 69/69A and GDL 88 datalink are
only advisory and not a replacement for a thorough preflight briefing
on TFR times and locations. Not all TFRs may be shown. Always confirm
TFR data through official sources.
NOTE: All visual depictions contained within this document, including
screen images of the GTN 725/750 bezel and displays, are subject to
change and may not reflect the most current GTN 725/750 software.
Depictions of equipment may differ slightly from the actual equipment.
NOTE: This device complies with part 15 of the FCC Rules. Operation is
subject to the following two conditions: (1) this device may not cause
harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.

Warnings, Cautions, and Notes
190-01007-04 Rev. D GTN 725/750 Cockpit Reference Guide (CRG) v
NOTE: Terrain data is not displayed when the aircraft latitude is greater
than 75°North or 60°South.
NOTE: This product, its packaging, and its components contain chemicals
known to the State of California to cause cancer, birth defects, or
reproductive harm. This notice is being provided in accordance with
California’s Proposition 65. If you have any questions or would like
additional information, please refer to our web site at www.garmin.com/
prop65.
NOTE: Canadian Installations: In accordance with Canadian Radio
Specifications Standard 102 (RSS 102), RF field strength exposure to
persons from an antenna connected to this device should be limited
to 60V/m for controlled environment and 28 V/m for uncontrolled
environment.

vi
GTN 725/750 Cockpit Reference Guide (CRG)
190-01007-04 Rev. D
Record of Revisions
Part Number Revision Date Description
190-01007-04 A
B
C
D
Feb 2011
Mar 2011
Nov 2012
Feb 2013
Initial Release
Updated message list.
Added v3.00 functionality.
Added v4.00 functionality.

vii190-01007-04 Rev. D
GTN 725/750 Cockpit Reference Guide (CRG)
Contents
INTRODUCTION................................................................................................ 1
Direct-To Navigation....................................................................................................................................2
NAV/COM RADIO (GTN 750 Only) .................................................................... 3
Touchscreen Entry........................................................................................................................................3
Selecting a NAV/COM Frequency using Rotary Knobs ...................................................................................4
Frequency Flip/Flop......................................................................................................................................4
Audio Panel.................................................................................................................................................4
Monitored Radios........................................................................................................................................5
Mic Selection...............................................................................................................................................5
Intercom .....................................................................................................................................................6
Intercom Setup............................................................................................................................................7
TRANSPONDER .............................................................................................. 10
Transponder Control ..................................................................................................................................10
Special Squawk Codes...............................................................................................................................13
MAP ............................................................................................................... 14
Changing NAV Data Fields.........................................................................................................................15
Changing Data Fields ................................................................................................................................15
Pan Mode .................................................................................................................................................16
User Waypoints .........................................................................................................................................16
Creating (or Editing) a Flight Plan in Pan Mode ..........................................................................................17
TRAFFIC ......................................................................................................... 18
Traffic System Status Annunciations............................................................................................................19
TCAS - System Menu .................................................................................................................................20
TCAD - System Menu.................................................................................................................................21
TERRAIN......................................................................................................... 22
WEATHER ....................................................................................................... 24
SiriusXM® Weather (Optional) ..................................................................................................................24
FIS-B Weather ...........................................................................................................................................25
Connext Weather (Optional) ......................................................................................................................26
Radar (Optional)........................................................................................................................................27
CHARTS.......................................................................................................... 29
Chart Information......................................................................................................................................29
Menu Options ...........................................................................................................................................29
FLIGHT PLAN ................................................................................................. 30
Creating a Flight Plan................................................................................................................................30
Flight Plan Menu.......................................................................................................................................31
Airways.....................................................................................................................................................32
Airway Selection for Waypoint....................................................................................................................32
PROCEDURES ................................................................................................. 33
Flying the Missed Approach .......................................................................................................................34
Flying an Approach with a Hold .................................................................................................................34
NEAREST........................................................................................................ 35

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GTN 725/750 Cockpit Reference Guide (CRG)
190-01007-04 Rev. D
WAYPOINT INFO..............................................................................................36
Creating a User Waypoint ...........................................................................................................................37
SERVICES ........................................................................................................38
Phone ........................................................................................................................................................38
SMS Text ....................................................................................................................................................39
Music.........................................................................................................................................................40
Position Reports .........................................................................................................................................41
Contacts ....................................................................................................................................................42
UTILITIES.........................................................................................................43
Vertical Calculator (VCALC) ........................................................................................................................44
SYSTEM...........................................................................................................45
Crossfill......................................................................................................................................................46
SYMBOLS ........................................................................................................48
Map Symbols..............................................................................................................................................48
SafeTaxi™ Symbols....................................................................................................................................49
Traffic Symbols ...........................................................................................................................................49
TIS .............................................................................................................................................................49
Terrain Obstacle Symbols ............................................................................................................................51
HTAWS Obstacle Symbols ...........................................................................................................................52
Map Tool Bar Symbols ................................................................................................................................52
Miscellaneous Symbols ...............................................................................................................................53
Stormscope® Symbols................................................................................................................................54
Basemap Symbols.......................................................................................................................................54
MESSAGES ......................................................................................................55
GLOVE QUALIFICATION PROCEDURE ..............................................................76
Tests Required for Glove Qualification.........................................................................................................77
Tests Not Required for Glove Qualification ..................................................................................................78

1190-01007-04 Rev. D
GTN 725/750 Cockpit Reference Guide (CRG)
Introduction
INTRODUCTION
This cockpit reference guide (CRG) is intended to serve as a quick reference
covering the basic features and operating procedures for the GTN 725/750.
For detailed descriptions of any information found in this guide, refer to the
latest revision of the GTN 725/750 Pilot’s Guide, P/N 190-01007-03 found at
www.garmin.com.
Large
and Small
Knobs
Volume and
Squelch
Active COM Frequency
Standby COM
Frequency
Active NAV
Frequency
Transponder
Display
Audio Panel
Flip/Flop
Keys for
COM
Standby
NAV
Frequency
Direct-To
Key
Photo
Sensor
Home
Key
SD
Memory
Card
Slot
Messages
Function
Icons
Touchscreen
Display
Large and Small Knob
Function Annunciation
Locking
Screw
GTN 750 Front Panel/Main Page
Direct-To Key - Press to provide a direct course to a selected
waypoint.
Home Key - A single press of the Home Key returns the user
to the main page to access features. Pressing and holding the
HOME key while on any page will display the default MAP page.
Volume and Squelch Knob - Upper left knob controls volume of
the COM and NAV radios. Press to use the IDENT function of the
NAV radio. Pressing and holding the volume knob will change the
frequency to emergency frequency.
Large and Small Knobs - Both are rotary knobs. The small
knob can be pressed and held in to flip-flop COM and NAV
frequencies.

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GTN 725/750 Cockpit Reference Guide (CRG)
190-01007-04 Rev. D
Introduction
Direct-To Navigation
OR
Press the Direct-To key to quickly navigate from your present position
directly to a selected waypoint, flight plan waypoint, or nearest airport.
Direct-To a Waypoint
1. Press Direct-To.
2. Touch the Waypoint Identifier field and select the characters for the
desired waypoint with the large and small right knobs or the touch
keypad.
3. Touch Activate or press the small right knob. Text near the small
right knob indicates its current function.
Direct-To a Flight Plan Waypoint
OR
1. Press Direct-To.
2. Touch the FPL tab and then the desired Flight Plan waypoint.
3. Touch Activate or press the small right knob.
Direct-To a Nearest Airport
OR
1. Press Direct-To.
2. Touch the NRST APT tab and then the desired airport from the Nearest
Airport list. Touch the Up or Down keys as needed to show more of the
list.
3. Touch Activate or press the small right knob.

3190-01007-04 Rev. D
GTN 725/750 Cockpit Reference Guide (CRG)
GPS/NAV/COM
NAV/COM RADIO (GTN 750 Only)
Active COM Frequency Active NAV Frequency
Standby COM Frequency Standby NAV Frequency
Transponder ID
COM and NAV Radio Frequencies
Touchscreen Entry
NOTE:
G
designates functions that are accomplished by touching.
Cyan colored keys represent fields that can be modified, white colored
keys represent keys that change the state of operation for the related
feature.
The COM or NAV frequency is changed by touching the STBY field and
using the keypad to enter the desired frequency. Press Enter when finished or
Back to exit without making changes. If an entry was started, touch Cancel
to exit out of the screen without making changes.
G
COM Standby Page
Mon: Monitors the standby COM frequency.
Find: Displays categories for User, Recent, Nearest, and Flight Plan
frequencies.
Xfer: Automatically enters the frequency to the active COM or NAV
frequency window.
NOTE: The NAV Standby page is identical to the COM Standby page
except that there is no MON key.

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GTN 725/750 Cockpit Reference Guide (CRG)
190-01007-04 Rev. D
GPS/NAV/COM
Selecting a NAV/COM Frequency using Rotary Knobs
Press the center of the small right knob to change the COM frequency
display to the NAV frequency display.
1. Turn or momentarily press the small knob once to highlight the STBY
field of COM or NAV. The knob function defaults to COM after 30
seconds of inactivity.
2. Turn the large knob to the desired MHz value.
3. Turn the small knob to the desired kHz value.
4. Press the small knob to confirm entry.
Frequency Flip/Flop
To flip/flop the active and standby NAV/COM frequencies, press and
hold the small knob or touch the active NAV/COM frequency field. An
annunciation, Hold for Flip-Flop, will be displayed near the knobs.
Audio Panel
The audio panel allows you to control the audio equipment of the aircraft.
A green bar indicates that a particular selection is enabled. Touch the Audio
Panel key on the main page (see Page 5) to configure speakers, radios, and
microphone.
G
Audio Panel Key
The audio panel options page will be displayed.
Audio Panel Options

5190-01007-04 Rev. D
GTN 725/750 Cockpit Reference Guide (CRG)
GPS/NAV/COM
Split Mode: Touch to select Split COM Mode in which the pilot
and co-pilot can select independent COM radios.
Playback Controls: Touch to use the audio clearance recorder.
Cabin Speakers: Touch to activate cabin speaker.
Speaker Volume: Touch to adjust the speaker volume of the cabin
speakers.
Marker Audio: Touch to hear tones for marker beacons.
Marker Volume: Touch to adjust the volume of the marker beacon
broadcast.
Marker Hi Sense: Touch to allow detection of the outer marker
beacon at a greater distance.
3D Audio Touch to toggle the 3D audio function on and off.
Monitored Radios
The Monitor fuction indicates which radios are being listened to by the
crew and passengers.
Mic Selection
Use the Audio Panel page to select the microphone for transmitting. Mic
selection can be accomplished by touching the Audio Panel key on the main
page.

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GTN 725/750 Cockpit Reference Guide (CRG)
190-01007-04 Rev. D
GPS/NAV/COM
Intercom
G
Intercom
NOTE: The pilot’s position, (left or right seat), is configured during
installation and will be reflected on the Intercom Setup Page.
Touch to adjust
pilot’s volume
and squelch.
Touch to adjust
co-pilot’s volume
and squelch.
Touch to
adjust
passenger’s
volume
and
squelch.
Touch arrow
to activate
communication
between
recipients. See
Intercom
Modes table.
Intercom Setup Page (Pilot in Left Seat Shown)

7190-01007-04 Rev. D
GTN 725/750 Cockpit Reference Guide (CRG)
GPS/NAV/COM
Intercom Setup
The green arrow indicates active communication between the selected
recipients. The modes depicted below have the pilot in the left seat.
Mode Pilot Hears Co-Pilot Hears Passengers Hear
Selected radios, pilot Selected radios,
co-pilot
Passengers
Selected radios, pilot,
co-pilot
Selected radios, pilot,
co-pilot
Passengers
Selected radios, pilot,
co-pilot
Selected radios,
co-pilot, pilot,
passengers
Co-pilot,
passengers
Selected radios, pilot,
passengers
Selected radios,
co-pilot
Pilot, passengers
Selected radios, pilot Selected radios,
co-pilot, passengers
Co-pilot,
passengers
Selected radios, pilot,
co-pilot, passengers
Selected radios, pilot,
co-pilot
Selected radios,
pilot, passengers
Selected radios, pilot,
passengers
Selected radios,
co-pilot, passengers
Selected radios,
pilot, co-pilot,
passengers
Selected radios, pilot,
co-pilot, passengers
Selected radios, pilot,
co-pilot, passengers
Selected radios,
pilot, co-pilot,
passengers
Intercom Modes

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GTN 725/750 Cockpit Reference Guide (CRG)
190-01007-04 Rev. D
GPS/NAV/COM
If a GMA 35 is connected to the GTN, voice commands may be available.
Refer to the GTN 725/750 Pilot’s Guide, P/N 190-01007-03, for a complete
description of the voice recognition feature.
Voice Recognition Commands
Control Example Phrase Action
COM
“COM one” Toggles COM1 audio.
“MIC one” Selects MIC1/COM1 audio.
“COM one MIC” Selects MIC1/COM1 audio.
“COM two” Toggles COM2 audio.
“MIC two” Selects MIC2/COM2 audio.
“COM two MIC” Selects MIC2/COM2 audio.
“COM three” Toggles COM3 audio.
“MIC three” Selects MIC3/COM3 audio.
“COM three MIC” Selects MIC3/COM3 audio.
“Split COM” or “Split Mode” Toggles split COM mode.
NAV “NAV one” Toggles NAV1 audio.
“NAV two” Toggles NAV2 audio.
MUSIC
“MUSIC one mute” or Mute
MUSICD one”
Mutes Music 1 on radio
reception.
“Disable MUSIC one mute”
“MUSIC one mute disable”
“Disable mute MUSIC one” or
“Mute MUSIC one disable”
Disables Music 1 mute on
radio reception.
“MUSIC two mute” or
“Mute MUSIC two”
Mutes Music 2 on radio
reception.
“Disable MUSIC two mute”
“MUSIC two mute disable”
“Disable mute MUSIC two”
or “Mute MUSIC two disable”
Disables Music 2 mute on
radio reception.
Speaker “Speaker” or “Cabin Speaker” Toggles Cabin Speaker on/off.
COM
Clearance
Recorder
“Play”
“Read back” or “Say again”
Opens Audio Clearance
Recorder and plays the last
received radio transmission.
PA “P-A” or “Passenger Address” Toggles PA on/off.
Marker
Beacon “Marker” or “Marker Beacon” Same action as pressing Marker Audio.

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GTN 725/750 Cockpit Reference Guide (CRG)
GPS/NAV/COM
Control Example Phrase Action
Volume
Adjustments
“(Desired selection*) volume up” Increases volume of desired
selection.
“(Desired selection*) volume down” Decreases volume of desired
selection.
“(Desired selection*) volume” Displays the current volume
but does not change it.
* Desired selection: “Speaker”, “pilot”, “copilot”, “passenger”, “pass”, “phone”,
“marker”, “telephone”, “music one”, or “music two.”
NOTE: Finer volume adjustment may be made using the volume knob on the GTN
7xx. The voice command “Up” or “Down” is equivalent to five clicks of the Volume
knob.
Distribution
(Blue Mode)
“Distribute telephone to (desired
position(s) **)” or “Distribute
phone to (desired position(s) **)”
Distributes Telephone to
desired positions.
“Distribute music one to
(desired position(s) **)”
Distributes MUS1 to desired
position(s).
“Distribute music two to
(desired position(s)**)”
Distributes MUS2 to desired
position(s).
** Desired position(s): “All”, “none”, “pilot”, “copilot”, “passenger”, “pass”, or
any combination of pilot, copilot, passenger, or pass.
NOTE: The word “to” may be omitted from distribution phrases.
3D Audio
“Three-D audio”
Enables 3D audio
Voice Response: “Three-D
audio left, three-D audio
right.”
“Standard audio”
Enables standard audio
(disables 3D audio)
Voice Response: “Standard
Audio.”

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GTN 725/750 Cockpit Reference Guide (CRG)
190-01007-04 Rev. D
Transponder
TRANSPONDER
Transponder Control
Touch the Squawk Code Field to display the Transponder panel. Touch the
Transponder Mode field to select available modes.
IDENT Field
Squawk Code Field
Transponder Modes:
Standby, Ground, On,
Altitude Reporting
Transponder Control
Transponder ID
Touch the Squawk Code Field. Enter the code (for either XPDR 1 or XPDR 2)
using the displayed keypad. Touch ENTER to confirm selection.
IDENT
Touch IDENT to activate the transponder’s IDENT function. The key text
remains gray and will change to green when IDENT mode is active.
G
Transponder Mode

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GTN 725/750 Cockpit Reference Guide (CRG)
Transponder
Transponder
Mode - Green
indicates
current
condition
Transponder Panel Page (Non-GDL 88 Installations with Mode C Transponder)
Standby Touch to place transponder in Standby mode. It is still
powered, but will not transmit information. STBY displays in
the squawk code field.
Ground Touch to place transponder in Ground mode. Refer to the
documentation provided with your GTX transponder for specific
information on this mode of operation.
On Touch to turn transponder On for Mode A operation. Will
transmit the squawk code when interrogated. ON displays in
the squawk code field.
Altitude
Reporting
Touch for Mode C operation. The transponder will be on and
will transmit its squawk code and altitude when interrogated.
ALT displays in the squawk code field.
VFR Touch to set the squawk code to 1200.
Enable ES Touch to toggle extended squitter.
Flight ID This field is inactive in non-GDL 88 installations.

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GTN 725/750 Cockpit Reference Guide (CRG)
190-01007-04 Rev. D
Transponder
Touch to enter flight
ID
Touch to arm the
anonymous key.
Transponder Page (GDL 88 Installations with Mode C Transponder)
Standby Touch to place transponder in Standby mode. It is still
powered, but will not transmit information. STBY displays in
the squawk code field.
Ground Touch to place transponder in Ground mode. Mode S
interrogations will be allowed. GND displays in the squawk
code field.
On Touch to turn transponder On for Mode A operation. Will
transmit the squawk code when interrogated. ON displays in
the squawk code field.
Altitude
Reporting
Touch for Mode C operation. The transponder will be on and
will transmit its squawk code and altitude when interrogated.
ALT displays in the squawk code field.
VFR Touch to set the squawk code to 1200.
Anonymous Touch to arm anonymous mode.
Flight ID This field is active in GDL 88 installations that have
transponders.
NOTE: More detailed descriptions of the transponder panels for
all installations can be found in the GTN 725/750 Pilot’s Guide,
P/N 190-01007-03.