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GTX 325
Garmin GTX 325 User Manual
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190-01499-02
GTX 3x5 TSO Installation Manual
Rev. 1
Page 3-9
Figure 3-1 Figure for Locatio
ns of Antennas
3.9
Electrical Bonding
Ensure that the transponder
and GPS antennas are electrically bonded to the aircraft.
DIST
ANCE BETWEEN COM
AND GPS
ANTENNAS
ANTENNA MASKED BY VERTICAL FIN,
T-TAIL, OR DORSAL FIN. ANTENNA NOT
MOUNTED LEVEL WITH RESPECT TO
THE NORMAL FLIGHT ATTITUDE.
GOOD
BETTER
GREATER THAN THREE INCHES
OF WINDSCREEN
NORMAL
FLIGHT
ATTITUDE
ANTENNA MUST BE ON
TOP OF AIRCRAFT
CENTER LINE
SHOULD BE GREA
TER THAN TWO FEET.
SIDE VIEW
TOP VIEW
GPS ANTENNA
OFFSET
FROM CENTERLINE
WITH TYPICAL
DUAL
GPS INST
ALLA
TION
34
36
Table of Contents
Default Chapter
5
Table of Contents
5
1 System Overview
9
Scope
9
Equipment Description
9
GTX 3X5 Units
9
Definitions and Abbreviations
11
ADS-B Capabilities
12
TIS System Capabilities
12
Interface Summary
13
General Specifications
14
Physical Characteristics - Panel Mount Units
14
Physical Characteristics - Remote Mount Units
15
Transponder Specifications
16
UAT Receiver Specifications
16
Table 1-5 Display Specifications
16
1090 Mhz Receiver Specifications
17
GPS Specifications
17
Table 1-9 GNSS Receiver Specifications
17
GPS Antenna Requirements
18
Table 1-10 GNSS Receiver Antennas
18
Power Specifications
19
Table 1-11 Power Specifications
19
Certification
20
Table 1-12 TSO/ETSO Compliance
20
Table 1-13 TSO and ETSO Descriptions
21
Table 1-14 TSO/ETSO Deviations
21
Table 1-15 Software Design Assurance Levels
24
Table 1-16 Complex Hardware Design Assurance Levels
24
Operating Instructions
25
License Requirements
25
Reference Documents
25
2 Limitations
26
HSDB Packet Forwarding
26
3 Installation Overview
27
Introduction
27
Unit Configurations
27
Accessories Supplied
28
Optional Accessories
30
Installation Materials Required but Not Supplied
31
Installation Configurations
32
Special Tools Required
32
Table 3-2 Recommended Crimp Tools
32
Antenna Considerations
33
Electrical Bonding
35
Figure 3-1 Figure for Locations of Antennas
35
Cabling and Wiring
36
Shielding and Electrical Bonding Considerations
36
Cooling Requirements and Considerations
36
Mounting Requirements
36
4 Installation Procedure
37
Wiring Harness Installation
37
Backshell Assemblies
37
Coax Cable Installation
37
Connector Backshell Assembly
37
Equipment Mounting - Panel Mount Units
37
Equipment Mounting - Remote Mount Units
38
Antenna Installation
38
5 Connector Pinout Information
39
Main Board Connector - P3251
39
ADS-B Board Connector - P3252
41
Power
41
Lighting Bus
42
Antennas
42
Altitude Inputs
43
Discrete IO
44
Serial Data Interfaces
46
Suppression Bus
47
OAT Temperature Input
47
Audio Output
48
1PPS Interface
48
Configuration Module
48
USB Interface
49
6 Post Installation Configuration and Checkout
50
System Configuration Overview
50
Mounting, Wiring, and Power Checks
50
Connector Engagement Check
50
Configuration Setup
50
Remote Unit Configuration
52
Diagnostic Information
52
Ground Checks
52
Flight Checks
53
Database Check
53
Database Update Procedure
53
Software Loading Procedure
53
7 Continued Airworthiness
54
Appendixa Mechanical Drawings
55
Drawing List
55
Figure A-1 GTX 3X5 Panel Mount Assembly
55
Figure A-2 GTX 3X5 Panel Mount Dimensions and CG
55
Figure A-3 GTX 3X5 Horizontal Remote Mount Assembly
55
Figure A-4 GTX 3X5 Horizontal Remote Mount Dimensions and CG
55
Figure A-5 GTX 3X5 Vertical Remote Mount Assembly
55
Figure A-6 GTX 3X5 Vertical Remote Mount Dimensions and CG
55
Figure A-7 GTX 3X5 G1000 Mount Rack Assembly
55
Figure A-8 GTX 3X5 G1000 Mounting Rack Center of Gravity
55
Appendixb Interconnect Drawings
64
Figure B-1 GTX 345R G1000 Interconnect
64
5
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Garmin GTX 325 Specifications
General
Brand
Garmin
Model
GTX 325
Category
Marine Radio
Language
English
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