Garmin 01443 Users Manual

190-00926-01 October, 2011 Revision A

GTX 3000

Transponder Installation Manual

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© Copyright 2011

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Garmin Ltd. or its subsidiaries

All Rights Reserved

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Garmin International, Inc.

1200 E. 151st Street

Olathe, KS 66062 USA

Telephone: [phone]

Aviation Panel-Mount Technical Support Line (Toll Free) 1.888.606.5482

www.garmin.com

Garmin (Europe) Ltd.

Liberty House, Bulls Copse Road

Hounsdown Business Park

Southampton, SO40 9RB U.K.

+44/ (0) 870.8501241

Garmin AT, Inc.

2345 Turner Rd., SE

Salem, OR 97302 USA

Telephone: [phone]

RECORD OF REVISIONS

Revision Revision Date Description

A 10/31/2011 Initial Release

Page A GTX 3000 Installation Manual
Revision A 190-00926-01

INFORMATION SUBJECT TO EXPORT CONTROL LAWS

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This document may contain information which is subject to the Export Administration Regulations
("EAR") issued by the United States Department of Commerce (15 CFR, Chapter VII, Subchapter C) and
which may not be exported, released, or disclosed to foreign nationals inside or outside of the United States
without first obtaining an export license. The preceding statement is required to be included on any and all
reproductions in whole or in part of this manual.

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 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

Perchlorate Material – special handling may apply, See www.dtsc.ca.gov./

hazardouswaste/perchlorate.

CURRENT REVISION DESCRIPTION

.

WARNING

Revision

A All All Initial release

Page

Number(s)

Section

Number

DOCUMENT PAGINATION

Section Page Range

Table of Contents i – vi

Section 1 1-1 – 1-8
Section 2 2-1 – 2-8
Section 3 3-1 – 3-4

Section 4 4-1 – 4-12
Appendix A A-1 – A-2
Appendix B B-1 – B-3

Description of Change

GTX 3000 Installation Manual Page i
190-00926-01 Revision A

TABLE OF CONTENTS

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PARAGRAPH PAGE

Section 1 GENERAL DESCRIPTION............................................................. 1-1

1.1 Introduction ..................................................................................................................... 1-1

1.2 Equipment Description.................................................................................................... 1-1

1.3 Interface Summary ..........................................................................................................1-2

1.4 Technical Specifications .................................................................................................1-3

1.4.1 General Specifications ........................................................................................................ 1-3

1.4.2 Transponder Capabilities .................................................................................................... 1-4

1.4.3 ADS-B Capabilities ............................................................................................................ 1-5

1.4.4 Physical Characteristics ...................................................................................................... 1-6

1.4.5 Power Requirements ........................................................................................................... 1-6

1.5 License Requirements ..................................................................................................... 1-6

1.6 Certification..................................................................................................................... 1-6

1.6.1 TSO/ETSO/RTCA/ICAO Compliance............................................................................... 1-7

1.6.2 TSO/ETSO Deviations........................................................................................................ 1-7

1.7 Reference Documents .....................................................................................................1-7

1.8 Aviation Limited Warranty ............................................................................................. 1-8

Section 2 INSTALLATION OVERVIEW....................................................... 2-1

2.1 Introduction ..................................................................................................................... 2-1

2.2 Installation Materials....................................................................................................... 2-1

2.2.1 Equipment Available .......................................................................................................... 2-1

2.2.2 Additional Equipment Required ......................................................................................... 2-2

2.3 Installation Considerations.............................................................................................. 2-2

2.3.1 Preservation of Previous Systems....................................................................................... 2-2

2.3.2 Antenna Location Considerations....................................................................................... 2-3

2.4 Cabling and Wiring .........................................................................................................2-4

2.4.1 Cable Routing Considerations ............................................................................................ 2-5

2.5 Installation Approval Considerations for Pressurized Aircraft....................................... 2-6

2.6 Cooling Air...................................................................................................................... 2-6

2.7 GTX 3000 Mounting Requirements................................................................................ 2-6

2.7.1 Remote Mounted Stand-Alone Rack Considerations ......................................................... 2-7

Section 3 INSTALLATION PROCEDURE .................................................... 3-1

3.1 Unpacking Unit ............................................................................................................... 3-1

3.2 Wiring Harness Installation............................................................................................. 3-1

3.3 Backshell Assembly ........................................................................................................3-2

3.4 Weight and Balance ........................................................................................................3-2

3.5 Electrical Load Analysis .................................................................................................3-3

3.5.1 Circuit Breaker Placard....................................................................................................... 3-3

3.6 Final Installation.............................................................................................................. 3-3

3.7 Post Installation Configuration and Checkout ................................................................3-3

3.7.1 Configuration ...................................................................................................................... 3-3

3.7.2 Interference Check.............................................................................................................. 3-3

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TABLE OF CONTENTS

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PARAGRAPH PAGE

3.7.3 Operation/Performance Checkout....................................................................................... 3-4

3.7.4 Performance (Ramp) Test................................................................................................... 3-4

3.8 Continued Airworthiness ................................................................................................3-4

Section 4 SYSTEM INTERCONNECTS......................................................... 4-1

4.1 Pin Function List .............................................................................................................4-1

4.1.1 P3301 .................................................................................................................................. 4-1

4.1.2 P3302 .................................................................................................................................. 4-3

4.2 Power Function ...............................................................................................................4-5

4.2.1 Aircraft Power..................................................................................................................... 4-5

4.3 Altitude Functions........................................................................................................... 4-6

4.3.1 Altimeter Inputs .................................................................................................................. 4-6

4.3.2 Altimeter Interconnect, Dual GTX 3000 Installation ......................................................... 4-6

4.3.3 Altimeter Selection Priority ................................................................................................ 4-7

4.4 Discrete Functions........................................................................................................... 4-7

4.4.1 Discrete Outputs.................................................................................................................. 4-7

4.4.2 Discrete Inputs .................................................................................................................... 4-8

4.5 Serial Data Electrical Characteristics.............................................................................. 4-8

4.5.1 RS-232 Input/Output........................................................................................................... 4-9

4.5.2 RS-422 Input/Output........................................................................................................... 4-9

4.5.3 Configuration Module Connections.................................................................................... 4-9

4.5.4 ARINC 429 Input/Output ................................................................................................. 4-10

4.6 RS-232 Input/Output, Software Update Connections................................................... 4-11

Appendix A Construction and Validation of Structures............................... A-1

A.1 Static Test Loading....................................................................................................... A-1

A.2 Determining Static Load Capability............................................................................. A-1

Appendix B Assembly and Installation Drawings ..........................................B-1

GTX 3000 Installation Manual Page iii
190-00926-01 Revision A

LIST OF FIGURES

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FIGURE PAGE

Section 1 GENERAL DESCRIPTION............................................................. 1-1

Section 2 INSTALLATION OVERVIEW....................................................... 2-1

Figure 2-1 Antenna Installation Considerations ...................................................................2-3

Figure 2-2 GTX 3000 Stand Rack (011-02515-00) .............................................................. 2-7

Figure 2-3 GTX 3000 Rack, Suggested Mounting Locations............................................... 2-8

Section 3 INSTALLATION PROCEDURE .................................................... 3-1

Section 4 SYSTEM INTERCONNECTS......................................................... 4-1

Figure 4-1 View of J3301 connector, looking at unit ...........................................................4-1

Figure 4-2 View of J3302 connector, looking at unit ...........................................................4-3

Figure 4-3 GTX 3000 Software Update Connections......................................................... 4-12

Appendix A Construction and Validation of Structures............................... A-1

Figure A-1 Upward static Load Test.................................................................................... A-2

Figure A-2 Forward Static Load Test ..................................................................................A-2

Appendix B Assembly and Installation Drawings..........................................B-1

Figure B-1 GTX 3000 Outline Drawing .............................................................................. B-1

Figure B-2 GTX 3000 Connector/Rack Assembly Drawing ............................................... B-2

Figure B-3 GTX 3000 Minimum Installation/Removal Clearance...................................... B-3

Page iv GTX 3000 Installation Manual
Revision A 190-00926-01

LIST OF TABLES

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TABLE PAGE

Section 1 GENERAL DESCRIPTION............................................................. 1-1

Table 1-1 General Specifications .......................................................................................... 1-3

Table 1-2 Transponder Capabilities ...................................................................................... 1-4

Table 1-3 GTX 3000 with 011-02515-00 Rack .................................................................... 1-6

Table 1-4 Power Requirements............................................................................................. 1-6

Table 1-5 TSO/ETSO/RTCA/ICAO Compliance................................................................. 1-7

Table 1-6 TSO/ETSO Deviations .........................................................................................1-7

Table 1-7 Reference Documents........................................................................................... 1-7

Section 2 INSTALLATION OVERVIEW....................................................... 2-1

Table 2-1 Installation Materials ............................................................................................2-1

Table 2-2 Available Equipment ............................................................................................2-1

Table 2-3 Connector Kit (011-02019-00) ............................................................................. 2-1

Table 2-4 Connector Kit, 90 Degree (011-02019-01)........................................................... 2-2

Table 2-5 Cable Specifications .............................................................................................2-4

Table 2-6 Maximum Difference in Cable Lengths ............................................................... 2-5

Section 3 INSTALLATION PROCEDURE .................................................... 3-1

Table 3-1: Pin Contact Part Numbers ...................................................................................3-1

Table 3-2 Recommended Crimp Tools ................................................................................. 3-2

Table 3-3 Unit Power Loads .................................................................................................3-3

Section 4 SYSTEM INTERCONNECTS......................................................... 4-1

Table 4-1 P3301 Pin List.......................................................................................................4-1

Table 4-2 P3302 Pin List.......................................................................................................4-3

Table 4-3 Aircraft Power ...................................................................................................... 4-5

Table 4-4 Altimeter Inputs ....................................................................................................4-6

Table 4-5 Discrete Outputs ...................................................................................................4-7

Table 4-6 Discrete Inputs ......................................................................................................4-8

Table 4-7 RS-232 Input/Output ............................................................................................4-9

Table 4-8 RS-422 Input/Output ............................................................................................4-9

Table 4-9 Configuration Module Connections .....................................................................4-9

Table 4-10 ARINC 429 Input/Output .................................................................................4-10

Table 4-11 Transmit Data Labels........................................................................................ 4-11

Appendix A Construction and Validation of Structures .............................. A-1

Table A-1 Static Test Load ..................................................................................................A-1

Appendix B Assembly and Installation Drawings..........................................B-1

GTX 3000 Installation Manual Page v
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Page vi GTX 3000 Installation Manual

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Revision A 190-00926-01

1 GENERAL DESCRIPTION

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1.1 Introduction

This manual provides mechanical and electrical information for installing a GTX3000 as part of a Garmin
Integrated Flight Deck.

1.2 Equipment Description

The Garmin GTX 3000 is a remote-mount Mode S and ADS-B compliant transponder suitable for
installation in part 25 jets and any class of part 23 aircraft. It implements ARINC, UF16 and DF16, and
BDS(3,0) support for TCAS II operation. The unit has high transmit power sufficient to accommodate
longer (lossier) antenna cable runs in larger aircraft while still meeting TSO requirements for transmit
power. It is also designed and certified to meet DO-160 categories suitable for installation outside the
pressure vessel and in aircraft where safety expectations high. The GTX 3000 is designed to be controlled
from other Garmin avionics such as a GDU or GTC. These avionics will also typically provide (over the
same connection) fundamental data the transponder needs such as pressure altitude.

The Garmin GTX 3000 is a Mode A, C, and S transponder. It is certified under TSO-C112c and ETSO­C112c. The Mode S minimum operating performance specifications for these TSOs (“MOPS,” which are
RTCA DO-181D and EUROCAE ED-73C respectively) define a labeling convention that identifies the
primary characteristics of a transponder. The GTX 3000’s label is “level 2adens, Class 2”.

This label identifies that the GTX3000 supports:

• Basic data link support (level 2)

• TCAS compatibility (the “a” in “adens”)

• Antenna diversity operation (the “d” in “adens”)

• Extended squitter (the “e” in “adens”)

• Enhanced surveillance (including elementary surveillance) (the “n” in “adens”)

• Surveillance identifier codes (the “s” in “adens”)

• Higher minimum transmit power and reply rate (Class 1)

Basic data link support
link support the transponder has. Level 1 indicates no support. Level 5 indicates support for sending and
receiving extended length messages to multiple interrogators at the same time. The GTX3000 is a level 2
transponder in order to support elementary and enhanced surveillance as well as TCAS-II communication.
It is not a level 3, 4, or 5 transponder because there are not common applications that use the extended
length messaging these levels support.

: The “level” (e.g. level 2) of the transponder is an indication of what degree of data

TCAS compatibility
the ARINC 735B specification. It is designed to be connected to a Garmin TCAS, and its primary purpose
is to provide resolution advisory coordination with other TCAS-II aircraft.

Antenna diversity
and communication, and it is required for TCAS-II operation. The Mode S MOPS also recommends
diversity for aircraft “with gross mass in ecess of 5,700 kg or a maximum cruising true airspeed capability
in excess of 324 km/h (175 kt).”

Extended squitter

Elementary and enhanced surveillance
aircraft identification, TCAS information, vertical intention, track and turn, and heading and speed. This
information may be displayed on an air traffic controller’s radar display or it may be used in ground system
processing for functions such as detection of level bust or early recognition of aircraft maneuvers.
Ultimately this information is made available to improve safety and capacity. Flight in Europe has
mandates for elementary surveillance on most aircraft and enhanced surveillance on some aircraft.

GTX 3000 Installation Manual Page 1-1
190-00926-01 Revision A

: The GTX 3000’s TCAS compatibility consists of an ARINC 429 interface based on

: The GTX 3000 implements antenna diversity because it improves air-to-air surveillance

relates to ADS-B, which is discussed in the following paragraphs.

use the Mode S data link to provide ATC information regarding

Surveillance identifier (SI) codes are a set of 64 IDs that uniquely identify ground radars within a Mode S

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coverage area. SI codes were a later expansion upon the original 16 ID “interrogator codes” that allows a
reduction in ground station infrastructure complexity. These 16+64 ID codes allow transponders to
communicate with select ground stations when the transponder is within range of multiple ground stations.
Flight in Europe mandates a transponder support SI codes.

Class 1
equipment has higher minimum transmit power and reply rates than class 2 equipment. The MOPS
explains that class 2 equipment is intended to be restricted to aircraft that operate below 15,000 feet
altitude and have a maximum cruising true airspeed below 175 kt. Class 1 transponders are for aircraft that
operate above those speed and altitude boundaries.

ADS-B transmit is the GTX3000’s other primary function. The unit is certified to TSO-C166b and ETSO­C166a. It is certified to meet the DO-260B MOPS. The unit is a class B1 device per RTCA DO-260B.
This indicates the GTX3000 is transmit-only device for aircraft (vs ground vehicles or fixed objects) with a
minimum of 125 watts peak pulse power and supporting the following messages:

1.3 Interface Summary

The GTX 3000 provides the following interface connections via the rear connector. See Section 4 and
Appendix C for connection details.

: The Mode S MOPS defines two classes of Mode S transponders: class1 and class 2. Class 1

• Airborne Position

• Surface Position

• A/C Identification & Category

• Airborne Velocity

• A/C Operational Status

• Extended Squitter A/C Status.

• Diversity Antenna Ports

• Two bidirectional RS-232 and one bidirectional RS-422 serial connections for data and control

• Eight ARINC 429 inputs and four ARINC 429 outputs supporting various ARINC protocols to
maximize options for connectivity and allow redundancy

• Ten (10) encoding altimeter inputs

• External IDENT input

• External suppression pulse input/output

• Switched power output of up to 1.5 amps (for powering an encoding altimeter)

• Remote power turn on

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Revision A 190-00926-01

1.4 Technical Specifications

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1.4.1 General Specifications

Table 1-1 General Specifications

Characteristic Specification

Environmental Qualification
Form

FCC Authorization Emission Designator 12M0M1D

Antenna Compatibility

Antenna Cable Requirements Cable + bulkhead connector loss @1090 MHz < 3.0 dB

Transmitter Power 250 Watts minimum, 500 Watts nominal

Transmitter Frequency 1090 MHz ±1 MHz

Receiver Frequency 1030 MHz

Receiver Sensitivity -74 dBm nominal for 90% replies

External Suppression Input

External Suppression Output

Note:

1. Each unit’s external suppression is tested to the specifications above. The design based on the

specifications in ARINC 718A Attachment 6 and ARINC 735A Attachment 8.

0050-00503-01

Compatible with any antenna certified to one of the following TSOs:

TSO-C66() [DME TSO]
TSO-C74() [ATCRBS TSO]
TSO-C112() [Mode S TSO]

Low

≤ 1.0 V; High ≥ 9 V

Minimum is greater than +8V into 350 Ω in parallel w/ 1800 pF
Maximum is less than +36V into any load

GTX 3000 Installation Manual Page 1-3
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1.4.2 Transponder Capabilities

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Table 1-2 Transponder Capabilities

Characteristic Specification

Mode A Capability 4096 Identification Codes

Mode C Capability

Mode S Uplink Capability UF0, UF4, UF5, UF11, UF16, UF20, UF21

Mode S Downlink Capability DF0, DF4, DF5, DF11, DF16, DF17, DF20, DF21

Data link capability Level 2, Comm-A, Comm-B, Comm-U, Comm-V

TCAS II support Yes

Diversity Yes

Extended squitter Yes, see note 1

Elementary surveillance Yes, see note 2

Enhanced surveillance Yes, see note 2

SI code support Yes

(E)TSO-C112c class Class 1

Note 1: The GTX 3000 does not source the data for extended squitter / ADS-B messages. The GTX 3000
must receive this data from other equipment in order to provide extended squitter / ADS-B functionality.
Also, ADS-B must be configured on.

Note 2: Compliance with elementary and enhanced surveillance is shown at the installation-level per AMC
20-18 and AMC20-13. The GTX 3000 implements the technical requirements necessary of a transponder
that AMC 20-18 and AMC 20-13 require, but installation of a GTX 3000 does not constitute compliance
with elementary and enhanced surveillance. Also, in order for the GTX 3000 to meet the technical
requirements of AMC 20-13 for enhanced surveillance, the GTX 3000 must have enhanced surveillance
configured on and it must receive data to populate the relevant BDS registers.

100 Foot Increments from -1000 to 62,700 feet.
25 Foot Increments from -1000 to 50,
175 feet with suitable serial data altitude.

BDS Register Support

The following Binary Data Selector (BDS) registers are supported.

General Mode S Registers:

• BDS (0,0) Air Initiated Comm-B (AICB)

• BDS (1,0) Data Link Capability Report

• BDS (1,7) Common Usage Ground Initiated Comm-B (GICB) Capability Report

• BDS (1,8) Mode S Specific Services GICB Capability Report

• BDS (1,9) Mode S Specific Services GICB Capability Report

• BDS (1,C) Mode S Specific Services Protocols (MSP) Capability Report

Elementary Surveillance Registers

• BDS (2,0) Aircraft Identification

• BDS (2,1) Aircraft and Airline Registration Markings

• BDS (2,5) Aircraft Type

• BDS (3,0) TCAS/ACAS Active Resolution Advisory

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Enhanced Surveillance Registers

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• BDS (4,0) Selected Vertical Intention

• BDS (5,0) Track and Turn Report

• BDS (6,0) Heading and Speed Report

Extended Squitter/ADS-B Registers

• BDS (0,5) Airborne Position Message

• BDS (0,6) Surface Position Message

• BDS (0,7) Extended Squitter Status

• BDS (0,8) Aircraft Identification and Category Message

• BDS (0,9) Airborne Velocity Message – Subtypes 1, 2, 3, and 4

• BDS (0,A) Event Driven Data

• BDS (6,1) Aircraft Status Message – Subtypes 1 and 2

• BDS (6,5) Aircraft Operational Status – Subtypes 1 and 2

The GTX3000 sources data for:

• Air-initiated Comm B (BDS(0,0))

• Most bits in the capability reports (BDS(1,x))

• Aircraft identification registers (BDS(2,x))

The GTX3000 does not

• TCAS functionality (BDS(3,0) and capability bits in BDS(1,0))

• Enhanced surveillance (BDS(4,0), BDS(5,0), and BDS(6,0))

• Extended squitter / ADS-B (BDS(0,5) through BDS(0,A) and BDS(6,1) and BDS(6,5))

Data for these registers must be obtained through a RS-232, RS-422, or ARINC interface.

1.4.3 ADS-B Capabilities

The GTX 3000 is certified to meet the version 2 ADS-B requirements of TSO-C166b / ETSO-C166a and
the RTCA DO-260B MOPS. The MOPS classifies it as a class B1 device. The GTX 3000 is capable of
broadcasting the following ADS-B messages:

• BDS (0,5) Airborne Position Message

• BDS (0,6) Surface Position Message

• BDS (0,7) Extended Squitter Status

• BDS (0,8) Aircraft Identification and Category Message

• BDS (0,9) Airborne Velocity Message – Subtypes 1, 2, 3, and 4

• BDS (0,A) Event Driven Data

• BDS (6,1) Aircraft Status Message – Subtypes 1 and 2

• BDS (6,5) Aircraft Operational Status – Subtypes 1 and 2

The GTX 3000 does not source the data for ADS-B messages. It must receive this data from its RS-232,
RS-422, or ARINC inputs. Units in a Garmin Integrated Flight Deck such as the G5000 will typically
provide this data to the GTX 3000.

source data for registers relating to:

In order to transmit these messages, the GTX 3000 must have ADS-B enabled in its configuration.

GTX 3000 Installation Manual Page 1-5
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1.4.4 Physical Characteristics

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Table 1-3 GTX 3000 with 011-02515-00 Rack

Characteristic Specification

Width, Unit in Rack 2.58 inches (65.4 mm)

Height, Unit in Rack 6.47 inches (164.2 mm)

Depth (rack w/connectors) 10.94 inches (278 mm)

Weight, Unit only 5.2 lbs (2.36 kg)

Connecter (including backshell) and Rack Weight 0.7 lbs (0.32 kg)

Installed Weight (unit, rack, and connectors) 5.9 lbs (2.68 kg)

1.4.5 Power Requirements

Table 1-4 Power Requirements

Characteristic Specification

Input Voltage

Power Input 22 Watts Typical, 45 Watts Maximum

Maximum Full TSO Reply Rate;
1200 PRF, Code 7777

Maximum Quiescent 0.85 A @ 28 Vdc, 1.7A @ 14 Vdc

1.5 License Requirements

The Telecommunications Act of 1996, effective February 8, 1996, provides the FCC discretion to
eliminate radio station license requirements for aircraft and ships. The GTX 3000 installation must
comply with current transmitter licensing requirements. To find out the specific details on whether a
particular installation is exempt from licensing, please visit the FCC web site

http://wireless.fcc.gov/aviation.

If an aircraft license is required, make application for a license on FCC form 404, Application for Aircraft
Radio Station License. The FCC also has a fax-on-demand service to provide forms by fax. The
GTX 3000 owner accepts all responsibility for obtaining the proper licensing before using the GTX 3000.

The UHF transmitter in this equipment is guaranteed to meet federal
communications commission acceptance over the operating temperature range.
Modifications not expressly approved by Garmin could invalidate the license and
make it unlawful to operate the equipment.

14/28 Vdc See the Environmental Qualification Form for details
on surge ratings and minimum/maximum operating voltages.

1.6 A @ 28 Vdc, 3.6 A @14 Vdc

CAUTION

1.6 Certification

The conditions and tests required for TSO approval of this article are minimum performance standards. It
is the responsibility of those installing this article either on or within a specific type or class of aircraft to
determine that the aircraft installation conditions are within the TSO standards. TSO articles must have
separate approval for installation in an aircraft. The article may be installed only if performed under
14 CFR Part 43 or the applicable airworthiness requirements.

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