Garmin GDL 88 User manual

190-01122-00 TBD 2011 Rev. A

GDL 88 TSO Installation Manual Page A
190-01122-00 Rev. A
©Copyright 2011
Garmin International, Inc., or its subsidiaries
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RECORD OF REVISIONS
Revision
Revision Date
Description
A
Initial Release

Page B GDL 88 TSO Installation Manual
Rev. A 190-01122-00
DOCUMENT PAGINATION
Section
Pagination
Table of Contents
i - iv
Section 1
1-1 through 1-10
Section 2
2-1 through 2-2
Section 3
3-1 through 3-4
Section 4
4-1 through 4-6
Section 5
5-1 through 5-3
Section 6
6-1 through 6-5
Section 7
7-1 through 7-2
Appendix A
A-1 through A-2
Appendix B
B-1 through B-5
Appendix C
C-1 through C-6
Appendix D
D-1 through D-7

GDL 88 TSO Installation Manual Page i
190-01122-00 Rev. A
INFORMATION SUBJECT TO EXPORT CONTROL LAWS
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. A violation of the EAR may be subject to a penalty of up
to 10 years imprisonment and a fine of up to $1,000,000 under Section 2410 of the Export Administration
Act of 1979. Include this notice with any reproduced portion of this document.
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.
WARNING
Perchlorate Material –special handling may apply, See
www.dtsc.ca.gov./hazardouswaste/perchlorate.
WARNING
The GDL 88 with GPS/SBAS and the GDL 88D with GPS/SBAS contains a lithium
battery that must be recycled or disposed of properly. Battery replacement and removal
must be performed by professional services.

Page ii GDL 88 TSO Installation Manual
Rev. A 190-01122-00
1GENERAL DESCRIPTION..............................................................................................................1-1
1.1 Introduction................................................................................................................................1-1
1.2 Equipment Description ..............................................................................................................1-1
1.3 Technical Specifications ............................................................................................................1-2
1.3.1 Physical Characteristics .....................................................................................................1-2
1.3.2 General Specifications .......................................................................................................1-2
1.3.3 GPS/SBAS Specifications..................................................................................................1-3
1.3.4 978 MHz UAT Transceiver Specifications........................................................................1-3
1.3.5 1030 MHz Transmitter Specifications ...............................................................................1-4
1.3.6 1090 MHz Receiver Specifications....................................................................................1-4
1.3.7 UAT/1090 Requirements...................................................................................................1-5
1.3.8 GPS Antenna Requirements...............................................................................................1-5
1.4 License Requirements................................................................................................................1-6
1.5 Regulatory Compliance..............................................................................................................1-7
1.5.1 TSO Authorization and Advisory Circular References......................................................1-7
1.5.2 Non-TSO Functions...........................................................................................................1-8
1.5.3 TSO Deviations..................................................................................................................1-9
1.5.4 FCC Grant of Equipment Authorization............................................................................1-9
1.6 Aviation Limited Warranty......................................................................................................1-10
2LIMITATIONS..................................................................................................................................2-1
2.1 Installation..................................................................................................................................2-1
3INSTALLATION OVERVIEW ........................................................................................................3-2
3.1 Antenna Considerations.............................................................................................................3-2
3.1.1 GPS Antenna Location.......................................................................................................3-2
4INSTALLATION PROCEDURES....................................................................................................4-1
4.1 Unit and Accessories..................................................................................................................4-1
4.2 Optional Accessories..................................................................................................................4-2
4.2.1 GPS Antenna Options........................................................................................................4-2
4.2.2 UAT Antenna Options .......................................................................................................4-3
4.3 Miscellaneous Options...............................................................................................................4-3
4.4 Installation Materials not Supplied ............................................................................................4-3
4.4.1 Installation Materials Required but not Supplied...............................................................4-3
4.5 Special Tools Required..............................................................................................................4-3
4.6 Coaxial Cable Installation..........................................................................................................4-4
4.7 Equipment Mounting .................................................................................................................4-6
4.7.1 Unit Replacement...............................................................................................................4-6
4.8 Antenna Installation and Connections .......................................................................................4-6

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5CONNECTOR PINOUT INFORMATION.......................................................................................5-1
5.1 Pin Function List........................................................................................................................5-1
5.1.1 P881 Connector..................................................................................................................5-1
5.2 Power and Antennas...................................................................................................................5-3
5.2.1 Power .................................................................................................................................5-3
5.2.2 Antennas ............................................................................................................................5-3
6POST INSTALLATION CONFIGURATION AND CHECKOUT PROCEDURES.......................6-4
7PERIODIC MAINTENANCE...........................................................................................................7-1
7.1 Equipment Calibration...............................................................................................................7-1
7.2 Cleaning.....................................................................................................................................7-1
7.3 Battery Replacement..................................................................................................................7-1
Appendix A ENVIRONMENTAL QUALIFICATION FORM............................................................A-1
Appendix B GDL 88 DATA FORMAT................................................................................................B-2
Appendix C MECHANICAL DRAWINGS .........................................................................................C-5
Appendix D INTERCONNECT DIAGRAMS......................................................................................D-6
LIST OF FIGURES
Figure 3-1. GPS Antenna Installation Considerations..............................................................................3-4
Figure 4-1. Coaxial Cable Installation......................................................................................................4-4
LIST OF TABLES
Table 1-1. GDL 88 Units ..........................................................................................................................1-1
Table 1-2. Approved GPS/SBAS Antennas..............................................................................................1-5
Table 1-3. TSO Authorization ..................................................................................................................1-7
Table 1-4. Non-TSO Functions.................................................................................................................1-8
Table 1-5. System Functions.....................................................................................................................1-8
Table 4-1. Catalog Part Numbers..............................................................................................................4-1
Table 4-2. Standard Kit Accessories.........................................................................................................4-1
Table 4-3. Recommended Crimp Tools (or Equivalent)...........................................................................4-3

Page iv GDL 88 TSO Installation Manual
Rev. A 190-01122-00
GDL 88 MOD LEVEL HISTORY
The following table identifies hardware modification (Mod) Levels for the GDL 88, GDL 88D,
GDL 88 with GPS/SBAS and GDL 88D with GPS/SBAS. Mod Levels are listed with the associated
service bulletin number, service bulletin date, and the purpose of the modification. The table is current at
the time of publication of this manual (see date on front cover) and is subject to change without notice.
Authorized Garmin Sales and Service Centers are encouraged to access the most up-to-date bulletin and
advisory information on the Garmin Dealer Resource web site at www.garmin.com using their Garmin-
provided user name and password.
Mod Level
Service Bulletin Number
Service Bulletin Date
Purpose Of Modification

GDL 88 TSO Installation Manual Page 1-1
190-01122-00 Rev. A
1 GENERAL DESCRIPTION
1.1 Introduction
This manual is applicable for GDL 88 units with software version 2.00 or later. This manual describes the
physical, mechanical, and electrical characteristics, as well as instructions and other conditions and
limitations for installation and approval of the GDL units. Refer to Section 2, Limitations, for additional
information and other considerations.
NOTE
Except where specifically notes, references made to GDL 88 will equally apply to
GDL 88 with GPS/SBAS, GDL 88D, and GDL 88D with GPS/SBAS units.
Table 1-1. GDL 88 Units
Model
Part Number
GDL 88
010-00859-00
GDL 88 with GPS/SBAS
010-00860-00
GDL 88D
010-00861-00
GDL 88D with GPS/SBAS
010-00862-00
1.2 Equipment Description
The GDL 88 is a remote-mounted product that contains a 978 MHz Universal Transceiver (UAT) and a
1090 MHz receiver. The GDL 88 will transmit ownship ADS-B data via the UAT data link. It will receive
data from other UAT and 1090ES equipped aircraft, as well as Flight Information Service Broadcast
(FIS-B) weather. The received data may be output to an appropriate display.
The GDL 88 Series consist of four variations:
GDL 88
GDL 88, with an internal GPS/SBAS receiver
GDL 88D with dual antenna diversity
GDL 88D, with dual antenna diversity and an internal GPS/SBAS receiver

Page 1-2 GDL 88 TSO Installation Manual
Rev. A 190-01122-00
1.3 Technical Specifications
1.3.1 Physical Characteristics
Table 1-2. Physical Characteristics –GDL 88 Units
Characteristics
Specifications
Height
Width
Depth (Installed with rack and connectors)
GDL 88 Weight (Unit only)
GDL 88 Weight (Installed with rack)
GDL 88 with GPS/SBAS Weight (Installed with rack)
GDL 88D Weight (Unit only)
GDL 88D Weight (Installed with rack)
GDL 88D with GPS/SBAS Weight (Unit Only)
GDL 88D with GPS/SBAS Weight (Installed with rack)
1.3.2 General Specifications
Table 1-3. General Specifications - GDL 88 Units
Characteristics
Specifications
Operating Temperature Range
-45°C to +70°C For more details see
Environmental Qualification Form on the
Dealers Only page on www.garmin.com. See
Appendix A for part numbers.
Humidity
95% at 65°C
Altitude Range
50,000 ft (maximum)
Input Voltage Range
9 to 33 VDC
External Cooling
External fan incorporated into GDL 88
backplate is required.
Environmental Testing
See Environmental Qualification Form on the
Dealers Only page on www.garmin.com. See
Appendix A for part numbers.