GTX 3X5 Series Transponder Pilot's Guide DRAFT COPY
© 2015 Garmin Ltd. or its subsidiaries. All rights reserved. This manual reflects the operation of GTX 3X5 Series Transponders. Garmin International, Inc., 1200 East 151st Street, Olathe, KS 66062, U.S.A. Tel: 913/397.8200 Fax: 913/397.8282 Garmin AT, Inc., 2345 Turner Road SE, Salem, OR 97302, U.S.A. Tel: 503/391.3411 Fax 503/364.2138 Garmin (Europe) Ltd., Liberty House, Bulls Copse Road, Hounsdown Business Park, Southampton, SO40 9LR, U.K. Tel.
LIMITED WARRANTY All Garmin avionics products are warranted to be free from defects in materials or workmanship for: two years from the date of purchase for new Remote-Mount and Panel-Mount products; one year from the date of purchase for new portable products and any purchased newly-overhauled products; six months for newly-overhauled products exchanged through a Garmin Authorized Service Center; and 90 days for factory repaired or newly-overhauled products exchanged at Garmin in lieu of repair.
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.
NOTE: It is the responsibility of the GTX 3X5 owner to obtain proper licensing before using the transponder. AC 90-100A Statement of Compliance: The Garmin navigational unit meets the performance and functional requirements of AC 90-100A. 190-01499-00 Rev.
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1 GTX 3X5 Series Transponders ............................................ 1-1 1.1 GTX 335 .......................................................................... 1-1 1.2 GTX 345 .......................................................................... 1-1 1.3 References ........................................................................... 1-1 1.4 Acronyms and Abbreviations .............................................. 1-2 2 GTX 3X5 Controls .......................................................
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Figure 2-1 Squawk Code Entry Field..................................... 2-2 190-01499-00 Rev.
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1 GTX 3X5 SERIES TRANSPONDERS The GTX 3X5 Series Transponders is a family of panel mount and remote transponders. • GTX 345 Mode S transponder with built-in ADS-B UAT and 1090 MHz receivers • GTX 335 Mode S transponder with ADS-B Out functionality 1.1 GTX 335 The GTX 335 is a TSO compliant mode S transponder with ADS-B Out Extended Squitter functionality.
1.4 Acronyms and Abbreviations AAD Automatic Airborne Determination ADSB Automatic Dependant Surveillance Broadcast ATCRBS Air Traffic Control Radar Beacon System ASR Automatic Speech Recognition PIREP Pilot Report SSR Special Position Identification SPI Special Position Identification TCAS Traffic Collision Avoidance System 1-2 Garmin GTX 3X5 Pilot’s Guide DRAFT COPY 190-01499-00 Rev.
2 GTX 3X5 CONTROLS The GTX 3X5 series transponders share common pilot interface. 2.1 Power Control Keys NOTE Regardless of the operating mode, the GTX 3X5 will not respond to Air Traffic Control Radar Beacon System (ATCRBS) or Mode S All-Call interrogations if Automatic Airborne Determination (AAD) senses the aircraft is on the ground. ON Powers on into ON mode. ALT Powers on into ALT mode. OFF Powers off. SBY Powers on into standby mode. 2.
replies to identification and altitude interrogations as indicated by the Reply symbol ( ). The GTX 3X5 transmits ADS-B Out data. Replies to altitude interrogations and ADS-B Out data include the aircraft’s standard pressure altitude. 2.3 Squawk Code Keys There are eight squawk code entry keys (0 – 7) that provide access to all ATCRBS codes. Pushing one of these keys begins the code selection sequence. Digits that are not yet entered appear as underscored blanks.
CRSR Activates the cursor to select items in menus and on pages. CLR Clears selected entry and exit menus. 8/UP Enters the number eight in the Flight ID or Count Down timer. Navigates up in menus and within top level function groups. 9/DOWN Enters the number nine in the Flight ID or Count Down timer. Navigates down in menus and within top level function groups. 190-01499-00 Rev.
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3 FEATURES AND SETTINGS 3.1 Transponder (XPDR) FLIGHT ID This page displays the active Flight ID. Access to pilot entry of the Flight ID is through this page when allowed by the system. 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. UAT TX CTRL This page displays the current ON/OFF state of the UAT ADS-B Out function.
3.2 TIMERS (TMR) UP COUNTER This page provides a stopwatch style counter, with start/stop/reset controls via the ENT and CLR keys. DOWN COUNTER This page provides a count down style timer, with a notification, when the timer expires and start/stop/set/reset controls via the ENT and CLR keys. FLIGHT TIMER This page provides an airborne flight timer that starts and stops automatically with the GTX’s automatic airborne determination.
3.3 ALTITUDE (ALT) PRESSURE ALT This page displays the current pressure altitude. ALT MONITOR This page displays the current altitude deviation from the desired altitude to maintain. The desired altitude is automatically set when the altitude monitor is turned on. ON/OFF controls are available 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.
3.4 SYSTEM (SYS) BACKLIGHT – This page displays the current backlight level and backlight level offset. The offset is pilot modifiable via the CRSR and UP/DOWN keys. CONTRAST – This page displays the current contrast level and contrast level offset. The offset is pilot modifiable via the CRSR and UP/DOWN keys. MESSAGES – This page displays the number of active system messages. Viewing active system messages is available via CRSR key menu selection.
