Garmin GDR 66 Installatioin Manual

190-00303-24 January, 2012 Revision A

GDR 66

Transceiver Installation Manual

DRAFT

© Copyright 2011

DRAFT

Garmin Ltd. or its subsidiaries

All Rights Reserved

Except as expressly provided herein, no part of this manual may be reproduced, copied,

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the express prior written consent of Garmin. Garmin hereby grants permission to download a

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this manual or any revision hereto is strictly prohibited.

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 01/17/2012 Initial Release

Page A GDR 66 Installation Manual
Revision A 190-00303-24

INFORMATION SUBJECT TO EXPORT CONTROL LAWS

DRAFT

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

CURRENT REVISION DESCRIPTION

.

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 – 2-4
Section 3 3-1 – 3-4

Section 4 4-1 – 4-10
Appendix A A-1 – A-3
Appendix B B-1 – B-3

Description of Change

GDR 66 Installation Manual Page i
190-00303-24 Revision A

TABLE OF CONTENTS

DRAFT

PARAGRAPH PAGE

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

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

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

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

1.4 Technical Specifications .................................................................................................1-2

1.4.1 Environmental Qualification Form..................................................................................... 1-2

1.4.2 Physical Characteristics ...................................................................................................... 1-2

1.4.3 General Specifications ........................................................................................................ 1-2

1.4.4 Power Requirements ........................................................................................................... 1-3

1.4.5 Transmitter Power Versus Aircraft Bus Voltage................................................................ 1-3

1.4.6 COM Transceiver Specifications........................................................................................ 1-4

1.4.7 Digital Transceiver Characteristics..................................................................................... 1-4

1.4.8 License Requirements......................................................................................................... 1-6

1.5 Certification..................................................................................................................... 1-6

1.5.1 TSO/ETSO Compliance......................................................................................................1-7

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

1.6 Reference Documents .....................................................................................................1-7

1.7 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 ......................................................................................... 2-1

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

2.3.1 Antenna Considerations...................................................................................................... 2-2

2.3.2 Com Antenna Location....................................................................................................... 2-2

2.4 Cabling and Wiring .........................................................................................................2-3

2.5 Cooling Air...................................................................................................................... 2-3

2.6 Mounting Requirements.................................................................................................. 2-4

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

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

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

3.3 Antenna Installation ........................................................................................................3-2

3.4 Cable Installation ............................................................................................................3-3

3.5 Backshell Assembly ........................................................................................................3-4

3.6 Final Installation.............................................................................................................. 3-4

3.7 Post Installation Configuration & Checkout ...................................................................3-4

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

Page ii GDR 66 Installation Manual
Revision A 190-00303-24

TABLE OF CONTENTS

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PARAGRAPH PAGE

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

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

4.1.1 P661 (COM)........................................................................................................................ 4-1

4.1.2 P662 (Main) ........................................................................................................................ 4-2

4.2 Power Functions.............................................................................................................. 4-4

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

4.2.2 Remote Power Off .............................................................................................................. 4-4

4.2.3 GDR System ID Program ................................................................................................... 4-4

4.3 Serial Data....................................................................................................................... 4-5

4.3.1 RS-422 ................................................................................................................................ 4-5

4.3.2 RS-232 ................................................................................................................................ 4-5

4.3.3 ARINC 429 ......................................................................................................................... 4-6

4.4 Discrete I/O ..................................................................................................................... 4-7

4.4.1 Active Low Discrete Inputs ................................................................................................ 4-7

4.4.2 Key Event Out..................................................................................................................... 4-7

4.5 Audio............................................................................................................................... 4-8

4.5.1 Analog Audio...................................................................................................................... 4-8

4.5.2 ACARS/SELCAL............................................................................................................... 4-9

Appendix A Outline and Installation Drawings............................................. A-1

Appendix B Interconnect Examples.................................................................B-1

GDR 66 Installation Manual Page iii
190-00303-24 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: GDR 66 Standalone Rack ..................................................................................2-4

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

Figure 3-1 TNC Connector Installation ................................................................................3-3

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

Figure 4-1 View of J661 connector, from back of unit......................................................... 4-1

Figure 4-2 View of J662 connector, from back of unit......................................................... 4-2

Appendix A Outline and Installation Drawings ............................................ A-1

Figure A-1 GDR 66 Outline Drawing.................................................................................. A-1

Figure A-2 GDR 66 Connector/Rack Assembly Drawing.................................................. A-2

Figure A-3 GDR 66 Minimum Installation/Removal Clearance ......................................... A-3

Appendix B Interconnect Examples ................................................................B-1

Figure B-1 GDR 66 Power and Antenna Interconnect Example ......................................... B-1

Figure B-2 GDR 66 VDL Mode 2 Interconnect Example ................................................... B-2

Figure B-3 GDR 66 Analog Voice Mode Interconnect Example ........................................ B-3

Page iv GDR 66 Installation Manual
Revision A 190-00303-24

LIST OF TABLES

DRAFT

TABLE PAGE

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

Table 1-1 Physical Characteristics........................................................................................ 1-2

Table 1-2 General Specifications.......................................................................................... 1-2

Table 1-3 Power Requirements............................................................................................. 1-3

Table 1-4 TX Power (into 50Ω load) vs Bus Voltage .......................................................... 1-3

Table 1-5 Transceiver Specifications ................................................................................... 1-4

Table 1-6 Digital Transceiver Characteristics ...................................................................... 1-4

Table 1-7 License Requirements .......................................................................................... 1-6

Table 1-8 TSO/ETSO Compliance ....................................................................................... 1-7

Table 1-9 TSO/ETSO Deviations ......................................................................................... 1-7

Table 1-10 Reference Documents......................................................................................... 1-7

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

Table 2-1 Available Units..................................................................................................... 2-1

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

Table 2-3 Additional Equipment Required........................................................................... 2-1

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

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

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

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

Table 4-1 P661 Connector .................................................................................................... 4-1

Table 4-2 P662 Connector .................................................................................................... 4-2

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

Table 4-4 Remote Power Off................................................................................................ 4-4

Table 4-5 System ID Program .............................................................................................. 4-4

Table 4-6 Unit Number Configuration ................................................................................. 4-5

Table 4-7 RS-422.................................................................................................................. 4-5

Table 4-8 RS-232.................................................................................................................. 4-5

Table 4-9 ARINC 429........................................................................................................... 4-6

Table 4-10 Discrete Inputs.................................................................................................... 4-7

Table 4-11 Key Event Out .................................................................................................... 4-7

Table 4-12 Com Mic Audio.................................................................................................. 4-8

Table 4-13 Com Audio Out .................................................................................................. 4-8

Table 4-14 Com Mic Key ..................................................................................................... 4-8

Table 4-15 Com Remote Transfer ........................................................................................ 4-9

Table 4-16 SELCAL Audio and ACARS Data Out ............................................................. 4-9

GDR 66 Installation Manual Page v
190-00303-24 Revision A

Page vi GDR 66 Installation Manual

DRAFT

Revision A 190-00303-24

1 GENERAL DESCRIPTION

DRAFT

1.1 Introduction

This manual presents mechanical and electrical installation requirements for installing the GDR 66 as part
of a Garmin Integrated Flight Deck. The GDR 66 can be integrated into a variety of airframes under an
appropriate TC or STC. Each airframe installation may vary. Use only approved (type or supplemental
type) data for specific installation instructions in a particular aircraft.

1.2 Equipment Description

The GDR 66 is a remote mounted digital communications transceiver. The GDR 66 operates in the
following modes in the 118.000 to 137.000 MHz VHF aviation communications band:

• Analog Voice Mode (ARINC 716 Voice): Voice communications using DSB-AM modulation with

8.33 and 25 kHz channel spacing.

• VDL Mode 0/A (ARINC 716 Data): ACARS using DSB-AM modulation with a 2.4 kbps data rate
and 25 kHz channel spacing.

• VDL Mode 2 (ARINC 750 Data): Data link using D8PSK modulation with a 31.5 kbps data rate
and 25 kHz channel spacing.

1.3 Interface Summary

The GDR 66 provides the following interfaces:

• 2 RS-422 inputs

• 2 RS-422 outputs

• 1 RS-232 input

• 1 RS-232 output

• 5 configurable ARINC 429 inputs

• 2 configurable ARINC 429 outputs

• 8 configurable active low discrete inputs

• 5 active low discrete inputs: COM MIC KEY*, COM REMOTE TRANSFER*, GDR SYSTEM ID
PROGRAM* 1, GDR SYSTEM ID PROGRAM* 2, GDR SYSTEM ID PROGRAM* 3

• 1 active high discrete input: COM REMOTE POWER OFF

• 1 active low discrete outputs: KEY EVENT OUT*

• 1 analog microphone audio input

• 1 analog audio output

• 1 SELCAL audio/ACARS analog data output

• 2 aircraft power bus inputs

GDR 66 Installation Manual Page 1-1
190-00303-24 Revision A

1.4 Technical Specifications

DRAFT

1.4.1 Environmental Qualification Form

It is the responsibility of the installing agency to obtain the latest revision of the GDR 66 Environmental
Qualification Form. This form is available directly from Garmin under the following part number:

GDR 66 Environmental Qualification Form, Garmin part number 005-00548-01

To obtain a copy of this form, see the dealer/OEM portion of the Garmin web site (www.garmin.com)

1.4.2 Physical Characteristics

Table 1-1 list the physical characteristics for the GDR 66 unit, rack, and connectors. Please refer to
Appendix A for additional information.

Table 1-1 Physical Characteristics

Characteristics Specifications

Width (w/out Rack) 2.06 inches (5.23 cm)

Height (w/out Rack) 6.46 inches (16.4 cm)

Depth (w/out Rack) 8.78 inches (22.3 cm)

Width (with Rack) 2.06 inches (5.23 cm)

Height (with Rack) 6.62 inches (16.8 cm)

Depth (with Rack & Connectors) 10.1 inches (25.8 cm)

Unit Weight 4.2 lbs. (1.9 kg)

Rack Weight 0.36 lbs. (0.16 kg)

Connector Weight 0.33 lbs. (0.15 kg)

1.4.3 General Specifications

For detailed specifications, see the Environmental Qualification Form.

Table 1-2 General Specifications

Characteristics Specifications

Operating Temperature Range -55°C to +70°C. For more details see Environmental Qualification Form.

Humidity 95% non-condensing

Altitude Range -1,500 ft to 55,000 ft

Software Compliance RTCA/DO-178B Level C, EUROCAE/ED-12B Level C

Environmental Conditions RTCA/DO-160E, EUROCAE/ED-14E

.

Page 1-2 GDR 66 Installation Manual
Revision A 190-00303-24

1.4.4 Power Requirements

DRAFT

Table 1-3 Power Requirements

Characteristics Specifications

Input Voltage

14V

28V

1.4.5 Transmitter Power Versus Aircraft Bus Voltage

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

Receive (AM or VDL) Maximum 3.0A

Transmit (AM or VDL) Maximum 9.0A

Receive (AM or VDL) Maximum 1.5A

Transmit (AM or VDL) Maximum 8.0A

Table 1-4 TX Power (into 50Ω load) vs Bus Voltage

Aircraft Power Bus Voltage

(V)

V ≥ 22.0 V

22.0 > V ≥11.0

11.0 > V ≥10.25

GDR 66 does not claim Emergency Operation as defined by RTCA DO-160E,
Section 16

Tx Power AM Mode Tx Power VDL Mode

16 W minimum
20 W Typical

8 W minimum
10 W Typical

4 W minimum
5 W Typical

NOTE

15 W minimum
20 W Typical

7.5 W minimum
10 W Typical

4 W minimum
5 W Typical

GDR 66 Installation Manual Page 1-3
190-00303-24 Revision A

1.4.6 COM Transceiver Specifications

DRAFT

The GDR 66 Transceiver minimally meets the requirements of DO-186B and ED-23B. Refer to Table 1-5
for detailed specifications.

Table 1-5 Transceiver Specifications

Characteristics Specifications

Audio Outputs

Audio Response

Audio Distortion

Receiver Dynamic Range -107 dBm to +10 dBm typical

Sensitivity

Squelch

Spurious Response

Multi-Carrier Operation

Transmitter Power See Section 1.4.5

Transmitter Duty Cycle 10% maximum, thermally limited, 30 second limit per transmission

Modulation Capability

Carrier Noise Level Shall be at least 45 dB (S+N)/N

Frequency Stability + / - 5ppm (-55ºC to +70ºC with a 5-minute warmup at -55ºC)

Demodulated Audio Distortion Less than 10% distortion when the transmitter is modulated at least 70%

Sidetone 1.4 Vrms into a 600Ω load

Transmit Modulation Fidelity

Microphone Sensitivity See Section 4.5.1.1

Spurious Emissions - Global
Navigation Satellite System Band

Received Audio: 40 mW minimum into a 600Ω load
SELCAL/Data: 10.4 mW minimum into a 600Ω load

Less than 6 dB of variation between 300 and 2500 Hz
Greater than 40dB rejection above 3750 Hz

Not greater than 20.0% across the band from 300 Hz to 2500 Hz with a
90% modulated signal. No greater than 7.5% with a 30% modulated
signal

(S+N)/N on all channels shall be greater than 6 dB when the RF level
is -107dBm modulated 30% at 1000 Hz

Selectable between 0 to 20 dB SNR. Squelch hysteresis is selectable up
to 15 dB

74 dB minimum (-33 dBm signal produces no more output than desired
signal producing 6 dB (S+N)/N)

Meets multi-carrier sensitivity, distortion, and audio output level
requirements of ED-23C for Class C and Class H2 reveivers.

The modulation shall not be less than 70% with a standard modulator
signal applied to the transmitter

Shall be less than 6 dB when the audio input frequency is varied from 350
to 2500 Hz

Harmonic Emission products in the band extending from 1559 to 1610
Mhz shall be no greater than -60dBm

1.4.7 Digital Transceiver Characteristics

The GDR 66 Transceiver minimally meets the requirements of DO-281A. Refer to Table 1-6 for detailed
specifications.

Table 1-6 Digital Transceiver Characteristics

Characteristics Specifications

Dynamic Range +10dBm to -98dBm typical

Sensitivity Uncorrected BER of no more than 0.001 at -98 dBm

Transmitter Power See Section 1.4.5

Transmitter Duty Cycle 20% maximum, thermally limited

Modulation Capability D8PSK

Frequency Stability + / - 5ppm (-55ºC to +70ºC with a 5-minute warmup at -55ºC)

Transmit Symbol Constellation Error EVM of less than 6%

Spurious Emissions - Global
Navigation Satellite System Band

Page 1-4 GDR 66 Installation Manual
Revision A 190-00303-24

Harmonic Emission products in the band extending from 1559 to 1610
Mhz shall be no greater than -60dBm