FCC ID: IPH-03253 Licensed Non-Broadcast Station Transmitter

GTX 335/345 All-In-One ADS-B Transponder Pilot's Guide 2016-2018 Garmin Ltd. or its subsidiaries. All rights reserved. This manual reflects the operation of GTX 3X5 transponders. Except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted, disseminated, downloaded or stored in any storage medium, for any purpose without the express written permission of Garmin. Garmin hereby grants permission to download a single copy of this manual and of any revision to this manual onto a hard drive or other electronic storage medium to be viewed for personal use, provided that such electronic or printed copy of this manual or revision must contain the complete text of this copyright notice and provided further that any unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited. This document complies with Garmin Banned and Restricted Substances document, P/N 001-00211-00. Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Garmin is under license. For information about the Aviation Limited Warranty refer to Garmins website. Visit flyGarmin.com for aviation product support. Printed in the U.S.A August 2018 190-01499-00 Rev. E WARNING Do not use data link weather information for maneuvering in, near, or around areas of hazardous weather. Information contained within data link weather products may not accurately depict current weather conditions. WARNING Do not use the indicated data link weather product age to determine the age of the weather information shown by the data link weather product. Due to time delays inherent in gathering and processing weather data for data link transmission, the weather information shown by the data link weather product may be significantly older than the indicated weather product age. I Copyright Information WARNINGS/CAUTIONS/NOTES W A R N N G S

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N O T E S WARNING 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 Californias Proposition 65. If you have any questions or would like additional information, please refer to our website at www.garmin.com/prop65/. WARNING To reduce the risk of unsafe operation, carefully review and understand all aspects of the GTX 3X5 Pilots Guide. Thoroughly practice basic operation prior to actual use. WARNING The display surface is coated with a special anti-reflective coating that is very sensitive to skin oils, waxes, and abrasive cleaners. It is very important to clean the lens using an eyeglass lens cleaner that is specified as safe for anti-reflective coatings with a clean, lint-free cloth. WARNING Traffic information is provided as an aid in visually acquiring traffic. Pilots must maneuver the aircraft based only upon ATC guidance or positive visual acquisition of traffic. CAUTION Unauthorized repairs or modifications could result in permanent damage to the equipment, and void your warranty and your authority to operate this device under FCC and FAA regulations. 190-01499-00 Rev. E GTX 335/345 Pilots Guide i S E T O N

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S G N N R A W I WARNINGS/CAUTIONS/NOTES NOTE The coverage expected for all operations (transponder replies to ATC, ADS-B and FIS-B reception) from the Garmin GTX 3X5 is limited to line of sight. Low altitude or aircraft antenna shielding by the aircraft itself may result in reduced range. Range can be improved by climbing to a higher altitude. NOTE This product does not contain any user-serviceable parts. Repairs should only be made by an authorized Garmin service center. NOTE It is the responsibility of the GTX 3X5 owner, residing outside of the U.S., to obtain proper licensing before using the transponder. ii GTX 335/345 Pilots Guide 190-01499-00 Rev. E P R O D U C T R E G I S T R A T I O N A N D S U P P O R T Copyright Information PRODUCT REGISTRATION AND SUPPORT Product Registration and Support Help us better support you by completing your online registration. To register, have your products serial number on hand. Visit www.Garmin.com and click the Product Registration link on the home page. Be sure to record your serial number in the space provided below. Serial Number:

This guide is available electronically at: www.garmin.com/manuals If you have any questions, visit flyGarmin.com Record of Revisions Part Number Revision Date Description 190-01499-00 A B C D E 02/12/16 08/12/16 09/09/16 07/11/18 08/02/18 Initial release. Added rotorcraft information. Minor edits. Added FIS-B information. Minor edits. 190-01499-00 Rev. E GTX 335/345 Pilots Guide iii S M Y N O R C A D N A S N O I T A V E R B B A I SOURCES AND REFERENCES INTRODUCTION Abbreviations and Acronyms ADS-B ADS-R AHRS ATC ATCRBS BLE FIS-B PED PIREP SSR TAS TCAS TFRs TIS TIS-B Automatic Dependant Surveillance-Broadcast Automatic Dependent Surveillance-Rebroadcast Attitude and Heading Reference System Air Traffic Control Air Traffic Control Radar Beacon System Bluetooth Low Energy Flight Information Services-Broadcast Portable Electronic Device Pilot Report Secondary Surveillance RADAR Traffic Advisory System Traffic Collision Avoidance System Temporary Flight Restrictions Traffic Information Service Traffic Information Service-Broadcast Sources and References Automatic Dependent SurveillanceBroadcast (ADS-B) is an important part of the FAA's NextGEN effort. ADS-B is a precise GPS-based surveillance system that provides ATC access to traffic data well beyond the capabilities of RADAR alone. It enables the display of precise traffic data in cockpits equipped to receive ADS-B. For more information about ADS-B, visit the Garmin ADS-B Academy website. www.garmin.com/us/intheair/ads-b/

For more information about ADS-B and other NextGEN programs, visit the FAA NextGEN website. www.faa.gov/nextgen/

iv GTX 335/345 Pilots Guide 190-01499-00 Rev. E T A B L E O F C O N T E N T S Copyright Information 1 2 3 4 5 6 7 GTX 3X5 Series Transponders ....................................................................................... 1-1 1.1 GTX 335 Transponder ................................................................................................... 1-1 1.2 GTX 345 Transponder ................................................................................................... 1-1 GTX 3X5 Controls ........................................................................................................... 2-1 2.1 Panel Mount Transponder Controls ............................................................................... 2-1 2.2 Mode Selection Keys ..................................................................................................... 2-1 2.3 Squawk Code Keys ....................................................................................................... 2-3 2.4 Function Keys ................................................................................................................ 2-4 2.5 Remote Transponder Control ........................................................................................2-4 Display Functions and Settings .....................................................................................3-1 3.1 Transponder (XPDR) ...................................................................................................... 3-1 3.2 Timers (TMR) ................................................................................................................. 3-2 3.3 Altitude (ALT) ................................................................................................................ 3-3 3.4 System (SYS) ................................................................................................................. 3-4 3.4.1 Bluetooth Pairing Instructions ............................................................................... 3-5 3.4.2 Bluetooth Paired Device Information ..................................................................... 3-5 ADS-B IN Traffic (GTX 345 Only) .................................................................................... 4-1 4.1 Traffic Alerting .............................................................................................................. 4-2 4.2 Helicopter Traffic Alerting ............................................................................................. 4-2 4.2.1 On Scene Mode .................................................................................................... 4-2 4.2.2 No Source of Heading Data .................................................................................. 4-3 4.3 TCAD/TAS/TCAS I GTX 345 Integration ......................................................................... 4-3 FIS-B Weather and Flight Information .......................................................................... 5-1 Connext Bluetooth .........................................................................................................6-1 Troubleshooting ............................................................................................................. 7-1 7.1 Transponder Failures ..................................................................................................... 7-1 7.2 Transponder System Messages ...................................................................................... 7-2 List of Figures Figure 2-1 Figure 3-1 Figure 3-2 Figure 3-3 Figure 3-4 Figure 3-5 Figure 3-6 Figure 3-7 Figure 3-8 Figure 7-1 Figure 7-2 Table 2-1 Table 2-2 Table 2-3 Table 2-4 Table 5-1 Table 6-1 Table 7-1 Squawk Code Entry Field .....................................................................................2-3 Flight ID Edit Display Page .................................................................................... 3-1 Flight ID Editable Display Page ............................................................................. 3-1 Bluetooth Page ..................................................................................................... 3-5 Bluetooth Pair Request Page ................................................................................ 3-5 Paired Device List Page ......................................................................................... 3-5 Auto-reconnect Page ........................................................................................... 3-5 Unpair Device? Page ............................................................................................ 3-6

(Selected) Bluetooth Device Name Page ............................................................... 3-6 ADS-B 1090 Failed Screen .................................................................................... 7-1 ADS-B 1090 and Transponder Failed Screen ......................................................... 7-1 List of Tables Mode Section Key Functions ................................................................................ 2-2 Squawk Code Key Functions ................................................................................ 2-3 Squawk Codes ..................................................................................................... 2-3 Function Keys ...................................................................................................... 2-4 FIS-B Weather Products ........................................................................................5-2 GTX 345 Connext Features .................................................................................. 6-1 Troubleshooting .................................................................................................. 7-2 190-01499-00 Rev. E GTX 335/345 Pilots Guide v COPYRIGHT INFORMATION This page intentionally left blank. vi GTX 335/345 Pilots Guide 190-01499-00 Rev. E 1

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G T X 3 X 5 S E R I E S X P D R GTX 3X5 XPDR 1 GTX 3X5 SERIES XPDR 1 GTX 3X5 SERIES TRANSPONDERS The GTX 3X5 Series Transponders are panel mount and remote transponders. Both models are TSO-C112e (Level 2ens, Class 1) compliant mode S transponders with TSO-C166b compliant ADS-B Out 1090 MHz Extended Squitter functionality. 1.1 GTX 335 Transponder GTX 335 Features:

ADS-B Out

TIS traffic display output and aural alerting

Altitude deviation alerting

Timers: count up, count down, flight, trip

Static (Outside) air temperature display

Density and pressure altitude display

Internal GPS (Optional) For more information on TIS traffic refer to the displays operators manual and the FAA Aeronautical Information Manual (AIM), 4-1-17. 1.2 GTX 345 Transponder The GTX 345 includes ADS-B In functionality, when connected to a suitable display. GTX 345 Features:

ADS-B Out

Dual-band ADS-B In traffic display output and aural alerting

Integration with TCAD/TAS/TCAS I traffic systems

FIS-B weather and flight information display output

Bluetooth interface provides traffic, FIS-B, and other air data to a Portable Electronic Device (PED)

Altitude deviation alerting

Timers: count up, count down, flight, trip

Static (Outside) air temperature display

Density and pressure altitude display

Internal GPS (Optional) 190-01499-00 Rev. E GTX 335/345 Pilots Guide 1-1 1 GTX 3X5 SERIES XPDR This page intentionally left blank. 1-2 GTX 335/345 Pilots Guide 190-01499-00 Rev. E 2

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G T X 3 X 5 C O N T R O L S GTX 3X5 XPDR 1 GTX 3X5 SERIES XPDR 2 GTX 3X5 CONTROLS 2.1 The GTX 3X5 series transponders have an auto-dimming display and keypad layout. The keys access the transponders controls and features. Panel Mount Transponder Controls ON Powers on, disables altitude reporting. ALT Powers on, enables altitude reporting. VFR Changes to the preprogrammed squawk code for VFR. OFF Powers off. SBY Powers on or changes into standby mode. IDNT Activates the Ident function. 2.2 Mode Selection Keys NOTE The transponder system no longer supports a pilot selectable GND mode. The transponder should always be in ALT mode prior to moving on the airport surface. It must be in ALT mode when operating in certain controlled airspace, in accordance with 14 CFR 91.215. For guidance on transponder operation, refer to the FAA Aeronautical Information Manual (AIM), 4-1-20(a)(3). When on the ground or in the air always operate the transponder in ALT mode, unless otherwise requested by ATC. It is acceptable to go directly from OFF to ALT mode. It is not necessary to place in SBY mode for a warm up period. The transponder automatically determines whether the aircraft is in the air or on the ground and sends that information to other aircraft and ATC. Automatic ALT Mode Switching If the unit is configured for Automated Airborne Determination and senses a transition from on ground to in air, the unit automatically switches from SBY to ALT mode. 190-01499-00 Rev. E GTX 335/345 Pilots Guide 2-1 S L O R T N O C 5 X 3 X T G

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2 Table 2-1 Mode Section Key Functions ON The ON key selects the on mode. The transponder replies to interrogations.Replies do not include pressure altitude. The Reply (

responding.

) symbol on the display indicates the transponder is ALT The ALT key selects the alt mode. Always use Alt mode while in the air and on the ground, unless otherwise requested by ATC. All aircraft air/ground state transmissions are handled via the GTX 3X5 transponder and require no pilot action. The transponder replies to identification and altitude interrogations. The Reply (

The GTX 3X5 transmissions include pressure altitude. The VFR key sets the transponder code to the preprogrammed VFR

) symbol indicates the transponder is responding. code.This is factory set to 1200, but.may be changed during installation configuration. To restore the previous identification code, press the VFR key a second time. To toggle between these two codes, continue to press the VFR key. The IDENT key activates the IDENT function for 18 seconds. This sets the transponder apart from others on the air traffic controllers screen. During this time the word IDENT will appear in the upper left corner of the display. The SBY key selects the standby mode. The transponder will not reply to any interrogations or transmit ADS-B Out. If BT functions are enabled, BT functionality remains operational. The GTX 345 will continue to receive ADS-B In information, but will not be a TIS-B participant. VFR IDENT SBY 2-2 GTX 335/345 Pilots Guide 190-01499-00 Rev. E 2

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G T X 3 X 5 C O N T R O L S 2.3 Squawk Code Keys GTX 3X5 XPDR 1 GTX 3X5 SERIES XPDR There are eight squawk code entry keys (0 7). They provide access to all ATCRBS codes. Pressing one of the squawk code entry keys begins the code selection sequence. Digits that are not yet entered appear as underscored blanks. When the fourth digit is entered the new code is activated. Table 2-2 Squawk Code Key Functions Press the CLR key to move the cursor back to the previous digit. Press and hold the CLR key to move the cursor back to the first digit. Pressing the CLR key when the cursor is on the first digit removes the cursor and cancels the code entry, retaining the last code entered. Pressing the CRSR key when entering the code removes the cursor and cancels the code entry. The last code entered is retained. Figure 2-1 Squawk Code Entry Field Table 2-3 Squawk Codes Description Enter code if there is a loss of communication. LOST COMM displays under the squawk field. Enter code if there is a general emergency. EMERGENCY displays under the squawk field. Code 7600 7700 190-01499-00 Rev. E GTX 335/345 Pilots Guide 2-3 2.4 Function Keys Table 2-4 Function Keys FUNC The FUNC key cycles through four menu groups shown on the right-hand side of the display. Menu groups include:

Transponder (XPDR) Timers (TMR) Altitude (ALT) System (SYS) ENT The ENT key acknowledges the selection of menu items and pilot data entry fields. S L O R T N O C 5 X 3 X T G

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2 CRSR The CRSR key activates the cursor to select items in menus and on pages. CLR 8 9 The CLR key clears selected entry and exits the menus. The key enters the number eight in the Flight ID or Count Down timer. It navigates up and between the functions and settings within a menu group. The key enters the number nine in the Flight ID or Count Down timer. It navigates down and between the functions and settings within a menu group. 2.5 Remote Transponder Control The GTX 3X5 transponder functions are controllable from connected, Garmin certified displays (e.g., GTN) or G1000 integrated flight deck. When the GTX 3X5 is installed in a location other than the cockpit instrument panel, remote control from a display is the only GTX 3X5 flight crew interface available. Remote transponder control includes:

Squawk code IDENT Flight ID*

*When allowed by installation configuration. Transponder mode ADS-B transmit control*

TIS traffic enable/disable (GTX 335 only) Refer to the display's pilot guide for transponder control operation that is specific to each display. 2-4 GTX 335/345 Pilots Guide 190-01499-00 Rev. E 3

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D I S P L A Y F U N C T I O N S A N D S E T T I N G S GTX 3X5 XPDR 1 GTX 3X5 SERIES XPDR 3 DISPLAY FUNCTIONS AND SETTINGS The GTX 3X5 is organized into four menu groups shown on the right-hand side of the display. Each menu group contains a set of functions and settings. Menu groups include:

Transponder (XPDR) Altitude (ALT) Timers (TMR) System (SYS) 1. To navigate between the menu groups, press the FUNC key. 2. To navigate up or down and between the functions and settings within a current menu group, press the 8or 9keys. When enabled by installation configuration, the menu group last selected and the functions last used within that menu group are saved and restored at system power on. Otherwise, function navigation resets to the default state at system power on. 3.1 Transponder (XPDR) Press FUNC key Press FUNC key Press FUNC key Press FUNC key FLIGHT ID This page displays the active Flight ID. Unless configured, the Flight ID is not editable. If configured, the Flight ID Edit prompt displays, as shown in figure 3-1. To edit the Flight ID use the ENT and CLR keys. For an example of the editable Flight ID page refer to figure 3-2. Figure 3-1 Flight ID Edit Display Page Figure 3-2 Flight ID Editable Display Page 1090ES TX CTRL This page displays the current ON/OFF state of the 1090ES ADS-B Out function. Access to pilot control of the 1090ES ADS-B Out function is through this page when allowed by system configuration. 190-01499-00 Rev. E GTX 335/345 Pilots Guide 3-1 S G N I T T E S D N A S N O I T C N U F Y A L P S I D

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3 3.2 Timers (TMR) Press FUNC key Press FUNC key Press FUNC key Press FUNC key UP COUNTER This page provides a stopwatch style counter. Manual start/stop/reset controls are via the ENT and CLR keys. DOWN COUNTER This page provides notification in a count down style timer when the timer expires. Manual start/stop/set/reset controls are via the ENT and CLR keys. FLIGHT TIMER This page provides an airborne flight timer that automatically starts and stops with the GTX automatic airborne determination. The timer measures the elapsed airborne time since the last on ground-to-airborne transition. Manual start/stop/reset controls are via the ENT and CLR keys. TRIP TIMER This page provides an airborne flight timer that automatically starts and stops with the GTX automatic airborne determination. The timer measures the elapsed airborne time since the last manual reset of the timer. Manual start/stop/reset controls are via the ENT and CLR keys. 3-2 GTX 335/345 Pilots Guide 190-01499-00 Rev. E 3

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D I S P L A Y F U N C T I O N S A N D S E T T I N G S 3.3 Altitude (ALT) GTX 3X5 XPDR 1 GTX 3X5 SERIES XPDR Press FUNC key Press FUNC key Press FUNC key Press FUNC key PRESSURE ALT This page displays the current pressure altitude. ALT MONITOR This page displays the current altitude deviation from the altitude chosen to maintain. When the altitude monitor is turned on it is automatically set to the current altitude. Example: If the monitor is turned on at 9,500 ft, the monitor will trip when at 9,250 ft. or 9,750 ft., unless the installer configured the deviation limit to something other than the default value of 250 ft. If deviation is greater than the deviation limit (default is 250 ft.), the GTX will display LEAVING ALTITUDE for two seconds. It will then switch to the altitude monitor page. If the altitude alert is configured to Message or Message + Chime, the GTX will aurally alert leaving altitude. The GTX will reset the monitor when the aircrafts altitude returns within the deviation limit. ON/OFF controls are via the CRSR and ENT keys. SAT/DALT This page displays the current static air temperature (SAT) and density altitude (DALT), when available. 190-01499-00 Rev. E GTX 335/345 Pilots Guide 3-3 S G N I T T E S D N A S N O I T C N U F Y A L P S I D

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3 3.4 System (SYS) Press FUNC key Press FUNC key Press FUNC key Press FUNC key BACKLIGHT This page displays the current backlight level and backlight level offset. The backlight level offset is via the CRSR and 8 and 9keys. CONTRAST This page displays the current contrast level and contrast level offset. The contrast level offset is via the CRSR and 8 and 9keys. NOTE Messages are not high priority. Their purpose is to provide additional information on abnormal system behavior. They do not require immediate pilot action. Any transponder failure will immediately display an alert with no pilot action necessary to view the alert. For troubleshooting failure messages, refer to section 7. MESSAGES This page displays the number of active system messages. Viewing active system messages is via the CRSR key selection. BLUETOOTH (GTX 345) This page displays the status of the GTX 345 Bluetooth function. This page will not display when the GTX 345 connects to a GX000 or GTN over HSDB. The Bluetooth function is automatically placed into pairing mode when this page is displayed. Pairing must be initiated by the PED and then confirmed on the GTX 345. The last 13 paired PEDs and 6 Bluetooth Low Energy (BLE) devices are saved. At system power on, the GTX 345 automatically connects to any available and previously saved paired PEDs. PEDs that are currently connected and paired are viewed/deleted via the CRSR and 8 and 9keys. For instructions on Bluetooth pairing refer to section 3.4.1. For information on Connext Bluetooth features, refer to section 6. GPS STATUS This page displays the status of all configured GPS sources. The GPS position fix details are viewed via CRSR key selection. 3-4 GTX 335/345 Pilots Guide 190-01499-00 Rev. E 3

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D I S P L A Y F U N C T I O N S A N D S E T T I N G S GTX 3X5 XPDR 1 GTX 3X5 SERIES XPDR Bluetooth Pairing Instructions 3.4.1 For first time activation of Bluetooth devices:

1. Go to the GTX 345 Bluetooth page to enable pairing mode. Refer to figure 3-3. If connected to a GTN or GX000 via HSDB, refer to the displays pilots guide. 2. Enable Bluetooth on the PED. 3. Select GTX 345 from the list of available devices on the PED. Refer to manufacturers information for pairing instructions. 4. When a PED sends a pairing request the Bluetooth Pair Request page will display the device name and passkey. Refer to figure 3-4. 5. Press ENT on the GTX 345 and accept the pairing request on PED. Figure 3-3 Bluetooth Page Figure 3-4 Bluetooth Pair Request Page Bluetooth Paired Device Information 3.4.2 To view the paired device list:

1. Press the CRSR key. To view the menu and pairing status:

1. Press the 8 and 9keys, respectively. 2. Then press the ENT key. The Paired Devices list page will display. Refer to figure 3-5. Figure 3-5 Paired Device List Page More information about each paired device and applicable settings can be found by doing the following steps:

To set the auto-reconnect status:

1. Highlight the paired device. 2. Then press ENT key. Refer to figure 3-6. Figure 3-6 Auto-reconnect Page 190-01499-00 Rev. E GTX 335/345 Pilots Guide 3-5 To unpair a device:

1. Highlight the device to be unpaired. 2. Then press the ENT key. Refer to figure 3-7. To view the device name on the Bluetooth page:

Figure 3-7 Unpair Device? Page 1. Press the ENT key. 2. Use the 8 and 9keys, highlight the devices name to view. 3. Then press the ENT key. Refer to figure 3-8. Figure 3-8 (Selected) Bluetooth Device Name Page S G N I T T E S D N A S N O I T C N U F Y A L P S I D

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3 3-6 GTX 335/345 Pilots Guide 190-01499-00 Rev. E 4

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B I N T R A F F I C 4 ADS-B IN TRAFFIC (GTX 345 ONLY) GTX 3X5 XPDR 1 GTX 3X5 SERIES XPDR NOTE Inherent inaccuracies exist in TIS-B and TAS/TCAS traffic position data. Because of this the GTX 345 may at times be unable to correlate targets from multiple sources for the same aircraft. When this occurs, a single aircraft is tracked and displayed as two co-located targets. NOTE The GTX 345 will continue to receive ADS-B In information when in standby mode. The GTX has two modes:

1. Airborne Situational Awareness (AIRB). AIRB is in operation in the en route environment, outside of five NM from, and 1,500 feet above, the nearest airport. 2. Surface Situation Awareness (SURF). SURF is in operation within the terminal environment, within five NM and less than 1,500 feet above field elevation. When SURF is running airport map data and ground targets may be displayed as an aid to situational awareness. ADS-B:

ADS-R:

Data transmitted directly from other aircraft. Ground station rebroadcast of ADS-B data after data link translation (UAT to 1090 MHz or 1090 MHz to UAT). This function aids aircrafts only operating one frequency. For more information about ADS-B refer to the FAA Aeronautical Information Manual (AIM), 4-5-7. TIS-B:

Ground station broadcast of secondary surveillance radar (SSR) derived traffic. The GTX 345 receives ADS-B traffic data (ADS-B, ADS-R, TIS-B) through the UAT

(978 MHz) and the 1090 MHz receivers. The GTX 345 may also receive traffic data from configured TAS/TCAS/TCAD. Traffic data is received, processed, and outputted to a connected display without pilot interaction. Traffic data may also be displayed on a PED

(e.g., tablet) via the built-in Bluetooth interface or connected Flight Stream 110/210. 190-01499-00 Rev. E GTX 335/345 Pilots Guide 4-1 C I F F A R T N I B

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4 Traffic Alerting 4.1 To enhance situational awareness, the GTX 345 provides traffic alerting for ADS-B, ADS-

R, and TIS-B targets. An aural message issues when an alert becomes active. For example, Traffic! Two Oclock, Low, Two Miles. Alerting parameters provide enough time after an alert is generated to acquire the target and maneuver the aircraft away from the conflicting traffic. The alerting parameters consider:

1. Closure rate of each aircraft (ownship and target) 2. Altitude separation and trend 3. Speed 4. Angle To minimize nuisance alerts, traffic alerting sensitivity is adaptive based on altitude above ground level. In fixed winged aircraft no aural alerts are given below 500 feet. 4.2 Helicopter Traffic Alerting A helicopter with a GTX 345 connected to a Garmin navigator or radar altimeter offers additional traffic alerting for helicopter operations. Traffic alerting volumes are tailored to minimize nuisance alerts when operating in an airport environment at less than 200 feet AGL, and less than 60 knots groundspeed, while still providing alerts from airborne ADS-B equipped aircraft. When in the airport environment alerting envelope, aural traffic alerts are shortened to Traffic. Bearing, distance, and relative altitude information is omitted. There are no traffic alerts when groundspeed is less than 10 knots and within 50 feet of the ground. 4.2.1 On Scene Mode is pilot selectable. It changes traffic alerting volumes for other ADS-B equipped rotorcraft traffic. This allows helicopters to operate in closer proximity to each other without excessive nuisance alerts. The pilot must manually select the on and off mode for On Scene Mode. For information about controls and indications refer to the displays pilot guide. On Scene Mode 4-2 GTX 335/345 Pilots Guide 190-01499-00 Rev. E 4

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B I N T R A F F I C GTX 3X5 XPDR 1 GTX 3X5 SERIES XPDR No Source of Heading Data 4.2.2 Due to helicopter maneuverability, ground track may not correspond to heading at low speeds. Limitations apply to GTX 345 installations with no source of heading data provided. ADS-B traffic will not display when operating at less than 15 knots groundspeed. Aural traffic alerts will issue, appropriately. If a TAS/TCAS is interfaced to the GTX 345 then:

TAS/TCAS traffic targets will continuously display at all speeds.

If in excess of 15 knots in backward or sideway flight, TAS/TCAS and ADS-B targets may not correlate. Two targets may appear on the display for each actual target being received over both ADS-B and TAS/TCAS. TCAD/TAS/TCAS I GTX 345 Integration 4.3 To optimize situational awareness the GTX 345 correlates TCAD/TAS/TCAS with ADS-B In traffic, combining data from all sources. This creates the most accurate and comprehensive traffic picture. When a correlation is made the most relevant target is displayed. There are no duplicates. Any active traffic system, or ADS-B traffic that is not correlated, will also display. When a GTX 3X5 and TAS/TCAS system integrate, the GTX 3X5 controls the operating mode of the TAS/TCAS system. It does this by using both its own air/ground logic and the available mode controls from the interfaced display. The GTX 345 provides all traffic aural alerts. 190-01499-00 Rev. E GTX 335/345 Pilots Guide 4-3 1 GTX 3X5 SERIES XPDR This page intentionally left blank. 4-4 GTX 335/345 Pilots Guide 190-01499-00 Rev. E GTX 3X5 XPDR 1 GTX 3X5 SERIES XPDR 5 FIS-B WEATHER AND FLIGHT INFORMATION The GTX 345 Flight Information ServicesBroadcast (FIS-B) function is capable of receiving weather and flight information. FIS-B is a subscription-free service that is broadcast over the UAT (978 MHz) data link. Reception of FIS-B data requires the aircraft to be within range and line-of-sight of a ground station. Because terrain may obstruct the signal, it may be necessary to gain altitude in order to receive the broadcast. For information about FIS-B, and Aviation Weather Services and products, refer to the FAA Aeronautical Information Manual (AIM), 4-5-9 and AC 00-45, Aviation Weather Service. For information about weather data display and the associated symbology, refer to the display operators guide. Table 5-1 lists FIS-B weather products and the timing associated with each. Transmission Interval is the time between the broadcast of a FIS-B product from a ground station. Update Interval is how often the FIS-B product updates with information from the data source provider. 190-01499-00 Rev. E GTX 335/345 Pilots Guide 5-1 5

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5 Table 5-1 FIS-B Weather Products Weather Product Transmission Interval

(Minutes) Update Interval CONUS NEXRAD Regional NEXRAD AIRMETs SIGMETs METARS Winds and Temperatures Aloft Pilot Weather Report (PIREP) TAFs NOTAMs (includes TFRs) 15 2.5 5 5 5 10 10 10 10 15 minutes 5 minutes 6 hours or as needed As available. Every hour for convective SIGMETs. 15 minutes to 1 hour (METAR station dependent) 6 hours As available. 6 hours. As available for amended TAFs. As available. NOTE Some Temporary Flight Restrictions (TFRs) may not appear, or the information may be incomplete. TFR Information shown is only advisory in nature. To determine accurate TFR information, verify with official sources, i.e., preflight planning or flight service center. 5-2 GTX 335/345 Pilots Guide 190-01499-00 Rev. E GTX 3X5 XPDR 1 GTX 3X5 SERIES XPDR 6 CONNEXT BLUETOOTH The GTX 345 Connext interface allows communication with applications

(i.e., Garmin Pilot and ForeFlight Mobile), while running on a PED. Connext works via the Bluetooth data link to provide up-to-date, wireless information throughout the cockpit. Refer to section 3.4 for Bluetooth pairing instructions. Up to two Bluetooth connections are supported by the GTX 345. Table 6-1 lists the GTX 345 Connext features. Table 6-1 GTX 345 Connext Features GTX 345 CONNEXT FEATURES GPS Position and Velocity

GPS position and velocity information used by the GTX 345's certified ADS-B functionality is made available to PEDs. ADS-B In Traffic

ADS-B In traffic data that is provided to certified traffic displays is made available to PEDs. This traffic is also combined with TCAD/TAS/TCAS traffic when the systems are integrated during installation. FIS-B Weather and Flight Information

FIS-B weather and flight information that is provided to certified displays is made available to PEDs. Pressure Altitude

Uncorrected barometric pressure altitude used by the GTX 345's certified transponder and ADS-B functionality is made available to PEDs. Attitude and Heading Reference System (AHRS)

When the GTX 345 is installed as part of an integrated flight deck

(e.g., G500/G600, G1000), AHRS data from an AHRS source is made available to PEDs.

When the GTX 345 is installed as a stand-alone device, a built-in sensor provides AHRS data to PEDs via Connext. Attitude data is not output to other installed avionics.

The internal AHRS sensor is for use in fixed-wing aircraft only and is disabled in helicopter installations. All internal AHRS functions are automatic and no pilot action is required. 6

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C O N N E X T B L U E T O O T H 190-01499-00 Rev. E GTX 335/345 Pilots Guide 6-1 1 GTX 3X5 SERIES XPDR This page intentionally left blank. 6-2 GTX 335/345 Pilots Guide 190-01499-00 Rev. E GTX 3X5 XPDR 1 GTX 3X5 SERIES XPDR 7 TROUBLESHOOTING The GTX 3X5 display system sends messages to the flight crew when trouble or otherwise abnormal conditions are detected. Table 7-1 outlines troubleshooting actions the flight crew may take to attempt to resolve each system message. If the actions taken do not resolve the message, or if there are any questions, the Garmin Product Support department is available Monday through Friday, 7:00 AM to 7:00 PM Central Time. US: 913-397-8200 US Toll Free: 1-866-739-5687 Canada Toll Free: 1-866-429-9296 www.fly.garmin.com To expedite your call, please have the following information ready. 1. System configuration (products, antennas, mounting location, etc.) 2. Model number, part number, and serial number 3. Software version(s) 4. Description of the problem 5. Efforts made to isolate/solve the problem Transponder Failures 7.1 The screen in figure 7-1 shows when ADS-B is not transmitting and the aircraft may not be compliant with 14 CFR 91.225. However, the transponder is still operating. The screen in figure 7-2 shows if both the transponder and ADS-B are not transmitting and the aircraft may not be compliant with 14 CFR 91. 215 and 14 CFR 91.225. Figure 7-1 ADS-B 1090ES Failed Screen Figure 7-2 ADS-B 1090ES and Transponder Failed Screen 7

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T R O U B L E S H O O T I N G 190-01499-00 Rev. E GTX 335/345 Pilots Guide 7-1 G N I T O O H S E L B U O R T

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7 7.2 Transponder System Messages NOTE Messages are not high priority. Their purpose is to provide additional information on abnormal system behavior. They do not require immediate pilot action. Any transponder failure will immediately display an alert with no pilot action necessary to view the alert. Depending on configuration, active messages display in the bottom left hand corner of the screen either as a flashing or solid MSG. If the MSG text is configured to flash, the text stops flashing when all active messages are read. To view new messages:

1. Press FUNC key to SYS group. 2. Press CRSR then ENT key to view message. Table 7-1 Troubleshooting SYSTEM MESSAGE EXPLANATION FLIGHT CREW ACTION 1090 ADS-B In Failed The GTX 3X5 has detected a 1090 receiver fault. Traffic picture may not be complete. Contact dealer for service. 1090 ADS-B Out Failed The unit cannot transmit ADS-B Contact dealer for service. messages. Note: This message is present regardless of whether 1090 ES is on or off. The GTX 3X5 has detected a fault in both 1090 and UAT receivers. ADS-B IN traffic and FIS-B will not be available. The GTX 3X5 does not have enough information to provide traffic alerting on ADS-B targets. ADS-B In Failed ADS-B In Traffic Alerting Failed Contact dealer for service. 1. Check power and/or circuit breaker for the GPS position source

(e.g., GTN or GNS). 2. Make sure the GPS antenna has a clear view of the sky and provide enough time for the GPS position source to obtain a position fix. Extended periods between use or GPS position source disconnection from the aircraft battery could cause a longer than normal GPS satellite acquisition time. If problem persists, contact dealer for service. 7-2 GTX 335/345 Pilots Guide 190-01499-00 Rev. E SYSTEM MESSAGE EXPLANATION FLIGHT CREW ACTION GTX 3X5 XPDR 1 GTX 3X5 SERIES XPDR ADS-B Position Input Failed The unit is not receiving GPS. Demo Mode The unit is operating in a mode intended for demonstra-

tion purposes. FIS-B Weather Failed Ground Test The FIS-B receiver has failed. The display of FIS-B products may be unavailable. The unit is operating in a mode intended for ground testing. 1. Check power and/or circuit breaker for the GPS position source

(e.g., GTN or GNS). 2. Make sure the GPS antenna has a clear view of the sky and provide enough time for the GPS position source to obtain a position fix. Extended periods between use or GPS position source disconnection from the aircraft battery could cause a longer than normal GPS satellite acquisition time. 1. Restart the unit. 2. If problem persists, cycle avionics master power. 3. If problem persists, contact dealer for service. Contact dealer for service. Restart the unit. Maximum Temperature Exceeded The unit is too hot. The transponder will not transmit until it has cooled. Use alternate transponder as the active transponder, if available, to allow the GTX 3X5 to cool. Minimum Temperature Exceeded The unit is too cold. The transponder will not transmit until it has warmed up. Allow time for the GTX 3X5 to warm up to ensure proper operation. Pressure Altitude Failed The GTX 3X5 has lost Service Soon TAS/TCAS Failed communication with the pressure altitude source. GTX 3X5 has detected an internal fault but the unit will continue to function. TAS/TCAS is reporting failed or the GTX 3X5 has lost communicating with the TAS/TCAS. Check power and/or circuit breaker for the pressure altitude source

(e.g., altitude encoder, ADC, etc.). Contact dealer for service. Check power and/or circuit breaker for the TCAD/TAS/TCAS I System. 190-01499-00 Rev. E GTX 335/345 Pilots Guide 7-3 7

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T R O U B L E S H O O T I N G SYSTEM MESSAGE EXPLANATION FLIGHT CREW ACTION Traffic Processing Failed The unit cannot process traffic because the unit isn't receiving enough information or the unit has an internal fault. UAT ADS-B In Failed The GTX 3X5 has detected a UAT receiver fault. Traffic picture may not be complete. 1. Check power and/or circuit breaker for the GPS position source

(e.g., GTN or GNS). 2. Make sure the GPS antenna has a clear view of the sky and provide enough time for the GPS position source to obtain a position fix. Extended periods between use or GPS position source disconnection from the aircraft battery could cause a longer than normal GPS satellite acquisition time. 3. Check Power and/or circuit breaker for the TCAD/TAS/TCAS I system. Contact dealer for service. G N I T O O H S E L B U O R T

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7 7-4 GTX 335/345 Pilots Guide 190-01499-00 Rev. E 2018 Garmin Ltd. or its subsidiaries Part Number: 190-01499-00 Rev. E