ARTEX ELT 345 Instruction Manual

Page 1 of 58
JUN 15/16
Y1-03-0282 Rev. E
Initial Issue August 6, 2015
ARTEX PRODUCTS / ACR ELECTRONICS, INC.
5757 Ravenswood Rd, Ft. Lauderdale, FL 33312
Cage Code: 18560
25-62-35
ARTEX ELT 345
Emergency Locator Transmitter
Description, Operation, Installation and Maintenance Manual
Y1-03-0282 Rev. E
This manual includes data for the following equipment:
Component
Labeled Part No.
Purchase Part No.
Emergency Locator Transmitter
A3-06-2880
8100
2-Wire Remote Switch
A3-06-2759
8304
Mounting Tray
A3-06-2882
8323
Installation Kit
455-7423
455-7423
Antenna w/Coax (black)
A3-06-2892-1
8324 in kit
Cable, Coaxial, BNC to BNC, 6 ft
611-6013-04
611-6013-04
ELT 345 Kit
8102
8102
Battery Pack, LiMnO2
A3-06-2883
8322
External Buzzer
452-6505
452-6505

ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ELT 345 (P/N: A3-06-2880)
Page 2 of 58
25-62-35
PROPRIETARY INFORMATION
This document contains proprietary information and such information may not be disclosed to others for any purpose,
nor used for manufacturing purposes without written permission from ACR Electronics.
Information in this manual is subject to change without notice. ACR Electronics makes no warranty, expressed or
implied, with regard to this manual, including but not limited to any implied warranties of merchantability, fitness for a
particular purpose, and non-infringement. In addition, ACR Electronics makes no warranty with regard to the
documentation or data contained herein. ACR Electronics is not liable in the event of incidentals, special, consequential,
or any other damages in connection with or arising from furnishing, performance, or use of this manual.
Reproduction of this publication or any portion thereof by any means is prohibited. For further information contact
Sales, ACR Electronics, 5757 Ravenswood Rd, Fort Lauderdale, FL 33312-6603. Telephone [phone].
AIRWORTHINESS LIMITATIONS
The Airworthiness limitations section is FAA approved and specifies inspections and other maintenance required under
14 CFR§ 43.16 and 91.403, unless an alternative program has been approved.
IMPORTANT NOTICE
ACR Electronics will be responsible for full distribution and revisions of ICA’s (Instructions for Continued Airworthiness).
For inquiries regarding the content and currency of this manual, contact ACR Electronics, 5757 Ravenswood Rd, Fort
Lauderdale, FL 33312-6603. Telephone [phone].

ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ELT 345 (P/N: A3-06-2880)
Page 3 of 58
25-62-35
RECORD OF REVISIONS
REVISION
CHANGE
DATE
REVISION
CHANGE
DATE
A
W/I 05-EN-05
Aug 06/15
B
ECO 16144
Sept 15/15
C
ECO 16240
Jan 19/16
D
ECO 16376
May 9/16
E
ECO 16385
Jun 15/16

ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ELT 345 (P/N: A3-06-2880)
Page 4 of 58
25-62-35
SERVICE BULLETIN LIST
SERVICE
BULLETIN NO
ISSUE
DATE
SUBJECT
MANUAL
REV NO
MANUAL
REV DATE

ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ELT 345 (P/N: A3-06-2880)
Page 5 of 58
25-62-35
LIST OF EFFECTIVE PAGES
SUBJECT
PAGE
DATE
SUBJECT
PAGE
DATE
Title Page
1
Jun 15/16
Test and Fault Isolation (cont.)
30
Sept 15/15
Notices
2
Sept 15/15
31
Sept 15/15
Record of Revisions
3
Jun 15/16
32
Jan 19/16
Service Bulletin List
4
Sept 15/15
33
Sept 15/15
List of Effective Pages
5
Jun 15/16
Removal
34
Sept 15/15
Table of Contents
6
Sept 15/15
35
Sept 15/15
7
Sept 15/15
36
Sept 15/15
8
Sept 15/15
Installation
37
Sept 15/15
List of Figures
9
Jan 19/16
38
Sept 15/15
Introduction
10
Sept 15/15
39
Sept 15/15
11
Sept 15/15
40
Sept 15/15
12
Sept 15/15
41
Sept 15/15
13
Sept 15/15
42
Sept 15/15
14
Sept 15/15
43
Sept 15/15
15
Sept 15/15
44
Dec 10/15
16
Sept 15/15
45
Dec 10/15
Description and Operation
17
Sept 15/15
46
Sept 15/15
18
Sept 15/15
47
Dec 10/15
19
Sept 15/15
48
Dec 10/15
20
Sept 15/15
49
Dec 10/15
21
Sept 15/15
50
Dec 10/15
22
Sept 15/15
51
Dec 10/15
23
Sept 15/15
52
Sept 15/15
Test and Fault Isolation
24
Sept 15/15
Illustrated Parts List
53
Sept 15/15
25
Sept 15/15
54
Sept 15/15
26
Jan 19/16
55
Sept 15/15
27
Sept 15/15
56
Sept 15/15
28
May 9/16
Appendix A
57
Sept 15/15
29
Jun 15/16
58
Sept 15/15

ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ELT 345 (P/N: A3-06-2880)
Page 6 of 58
25-62-35
TABLE OF CONTENTS
RECORD OF REVISIONS ........................................................................................................................... 3
SERVICE BULLETIN LIST........................................................................................................................... 4
LIST OF EFFECTIVE PAGES ....................................................................................................................... 5
TABLE OF CONTENTS ............................................................................................................................... 6
LIST OF FIGURES ..................................................................................................................................... 9
INTRODUCTION ..................................................................................................................................... 10
1. Manual Usage ............................................................................................................................. 10
A. General............................................................................................................................... 10
B. Application .......................................................................................................................... 10
2. Model Description ........................................................................................................................ 11
A. ELT 345 .............................................................................................................................. 11
3. Approvals.................................................................................................................................... 11
A. ELT..................................................................................................................................... 11
B. Battery ............................................................................................................................... 11
C. RTCA DO-160G Compliance.................................................................................................. 12
4. Frequency Allocation.................................................................................................................... 13
A. Application .......................................................................................................................... 13
B. Discussion........................................................................................................................... 13
5. List of Acronyms, Abbreviations and Definitions............................................................................. 14
6. References.................................................................................................................................. 16
A. Regulatory Documents......................................................................................................... 16
B. Other Documents ................................................................................................................ 16
DESCRIPTION AND OPERATION.............................................................................................................. 17
1. Description.................................................................................................................................. 17
A. Functional Overview ............................................................................................................ 17
B. System Components ............................................................................................................ 18
2. Operation.................................................................................................................................... 20
A. Overview ............................................................................................................................ 20
B. Normal Operation ................................................................................................................ 20
C. Manual Activation ................................................................................................................ 20
D. ELT Reset ........................................................................................................................... 21
E. Functional Check ................................................................................................................. 21
3. Specifications .............................................................................................................................. 21
A. Environmental and Physical.................................................................................................. 21
B. Electrical ............................................................................................................................. 22
C. Antenna.............................................................................................................................. 23
TEST AND FAULT ISOLATION ................................................................................................................. 24
1. Inspection and Test Regulatory Requirements............................................................................... 24
A. United States ...................................................................................................................... 24
B. Canada ............................................................................................................................... 24

ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ELT 345 (P/N: A3-06-2880)
Page 7 of 58
25-62-35
C. Other Countries................................................................................................................... 24
2. Inspection and Test Procedures.................................................................................................... 25
A. Checklist ............................................................................................................................. 25
B. Preparation ......................................................................................................................... 25
C. Coax Cable and Wiring Connections Inspection –Item 1........................................................ 25
D. Mounting Tray and Hardware Inspection –Item 2 ................................................................. 26
E. Battery Pack Inspection –Item 3.......................................................................................... 26
F. G-Switch Functional Check –Item 4 ..................................................................................... 26
G. Performance Test Setup....................................................................................................... 27
H. 121.5 MHz Frequency Measurement and Audio Modulation Check–Items 5a and 5b ............... 27
I. 121.5 MHz Power Output Measurement –Item 5c ................................................................. 28
J. 406 MHz Frequency Measurement –Item 5d ........................................................................ 28
K. 406 MHz Power Output Measurement –Item 5e.................................................................... 28
L. Current Draw Test –Item 5f ................................................................................................ 28
M. Digital Message Verification –Item 5g .................................................................................. 29
N. ELT Reset Check –Item 5h .................................................................................................. 30
O. Installed Transmitter / Antenna Test –Item 6 ....................................................................... 30
P. Antenna Test –Item 7......................................................................................................... 31
Q. Inspection and Test Documentation –Item 8 ........................................................................ 31
3. Fault Isolation ............................................................................................................................. 31
A. Self-Test ............................................................................................................................. 31
B. Troubleshooting .................................................................................................................. 33
REMOVAL .............................................................................................................................................. 34
1. ELT............................................................................................................................................. 34
A. ELT Removal ....................................................................................................................... 34
2. Battery ....................................................................................................................................... 35
A. Battery Removal.................................................................................................................. 35
3. Material or Equipment Return....................................................................................................... 36
A. Shipment Information .......................................................................................................... 36
B. Return Material Authorization ............................................................................................... 36
INSTALLATION....................................................................................................................................... 37
1. Regulatory Requirements and Guidelines ...................................................................................... 37
A. For US Registered aircraft: ................................................................................................... 37
B. TSO C126b, Paragraph D ..................................................................................................... 37
C. FAA .................................................................................................................................... 37
D. Canada ............................................................................................................................... 38
E. Other Countries................................................................................................................... 38
F. RTCA .................................................................................................................................. 38
2. Mounting Tray............................................................................................................................. 39
A. Location.............................................................................................................................. 39
B. Installation.......................................................................................................................... 41
3. Antenna...................................................................................................................................... 42
A. General............................................................................................................................... 42
B. Location.............................................................................................................................. 42
C. Installation General Info ...................................................................................................... 42
4. Remote Switch ............................................................................................................................ 43
A. Location.............................................................................................................................. 43
B. Installation.......................................................................................................................... 43

ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ELT 345 (P/N: A3-06-2880)
Page 8 of 58
25-62-35
5. Buzzer ........................................................................................................................................ 44
A. Location.............................................................................................................................. 44
B. Installation.......................................................................................................................... 44
6. Wiring......................................................................................................................................... 45
A. General Considerations and Recommendations...................................................................... 45
B. Remote Switch Harness Fabrication ...................................................................................... 46
C. ELT D-Sub Plug Installation.................................................................................................. 48
D. Cockpit Remote Switch 9-Pin Plug Installation ....................................................................... 49
E. Antenna Connection ............................................................................................................ 49
F. Airframe Ground Connections............................................................................................... 49
G. ELT Programming................................................................................................................ 49
H. RS-232 Acceptable Nav Data ................................................................................................ 49
7. ELT Installation and Test ............................................................................................................. 49
A. Installation.......................................................................................................................... 49
B. Harness ELT D-Sub Plug Sealing........................................................................................... 50
C. Installation Documentation .................................................................................................. 51
8. Battery Pack Installation .............................................................................................................. 51
A. Battery Installation and Reinstallation ................................................................................... 51
ILLUSTRATED PARTS LIST...................................................................................................................... 53
1. Introduction ................................................................................................................................ 53
A. Purpose .............................................................................................................................. 53
B. IPL Usage Guide.................................................................................................................. 53
2. Manufacturer Name and Address.................................................................................................. 53
A. Ordering Information ........................................................................................................... 53
APPENDIX A –ELT REGISTRATION ......................................................................................................... 57
1. Background Information .............................................................................................................. 57
A. Hex ID Code (15-Hex ID)..................................................................................................... 57
2. Registration ................................................................................................................................ 57
A. Responsibility ...................................................................................................................... 57
B. Required Information........................................................................................................... 57
C. Registration Information Resources ...................................................................................... 58
D. Where to Register ............................................................................................................... 58

ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ELT 345 (P/N: A3-06-2880)
Page 9 of 58
25-62-35
LIST OF FIGURES
Figure 1 ARTEX ELT 345 Beacon and Mounting Tray.......................................................................... 18
Figure 2 Remote Switch Front View .................................................................................................. 18
Figure 3 Buzzer ............................................................................................................................... 19
Figure 4 Battery Pack Assembly........................................................................................................ 19
Figure 5 Antennas ........................................................................................................................... 19
Figure 6 Performance Test Setup...................................................................................................... 27
Figure 7 Current Draw Test Setup .................................................................................................... 29
Figure 8 Short & Long 406 MHz Message Examples ........................................................................... 30
Figure 9 ELT Removal Sequence....................................................................................................... 34
Figure 10 Battery Pack Removal ....................................................................................................... 35
Figure 11 ARTEX ELT 345 Outline & Dimensions................................................................................ 39
Figure 12 ELT 345 Metal Strap Minimum Clearance Dimensions.......................................................... 40
Figure 13 Typical Mounting Tray Installation ..................................................................................... 41
Figure 14 A3-06-2892-1 Antenna Outlines and Dimensions ................................................................ 43
Figure 15 Remote Switch Outline and Dimensions ............................................................................. 43
Figure 16 Buzzer Outline and Dimensions ......................................................................................... 44
Figure 17 Typical 2-Wire Installation for Unshielded Harness.............................................................. 45
Figure 18 Typical 2-Wire Installation for Shielded Harness ................................................................. 46
Figure 19 Harness Plug Assembly ..................................................................................................... 48
Figure 20 ELT Installation Sequence ................................................................................................. 50
Figure 21 Battery Pack Installation ................................................................................................... 51
Figure 22 ELT 345 Main Assembly and Installation............................................................................. 54
Figure 23 Harness Components ........................................................................................................ 55
Figure 24 Antennas ......................................................................................................................... 56

ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ELT 345 (P/N: A3-06-2880)
Page 10 of 58
25-62-35
INTRODUCTION
TASK 25-62-35-990-801
1. Manual Usage
SUBTASK 25-62-35-990-001
A. General
1) This manual describes the operation, installation and maintenance of the ARTEX ELT 345 emergency locator
transmitter (ELT). The information is provided to ensure initial and continued airworthiness. Information
presented in this manual is accurate at the time of printing, but is subject to change. Refer to the ARTEX web
site at www.acrartex.com for the latest information and any updates to this manual.
2) Information on the COSPAS-SARSAT emergency locator beacon registration requirements and procedures is
provided in Appendix A –ELT Registration on page 57.
3) ACR Electronics reserves the right to add approved components to the ELT system; including but not limited to
antennas, remote switches and coaxial cables. These changes are approved as “minor changes” pursuant to
FAR 21, Subpart O for TSO holders.
4) Regulatory references contained herein are generally confined to Web links provided in this manual and were
accurate at time of printing, but may be subject to change. Consult your national aviation authority for
applicable requirements.
SUBTASK 25-62-35-990-002
B. Application
1) This manual constitutes supporting data/documentation for the ARTEX ELT 345, including:
a) Description and Operation
b) Test and Fault Isolation (includes inspection criteria)
c) Removal
d) Installation
e) Registration
f) Illustrated Parts List
2) In the United States, the ARTEX ELT 345 must be installed and maintained in accordance with the requirements
herein, 14 CFR, FAR Parts 43, -91 and other airworthiness requirements, as applicable.
3) In Canada, the ARTEX ELT 345 must be installed and maintained in accordance with the requirements herein
as well as Canadian Aviation Regulations (CAR); Part V, Paragraph 551.104 as well as other CAR airworthiness
requirements, as applicable.
4) ARTEX ELT 345 installation and maintenance in all other countries must comply with the requirements herein
as well as applicable national airworthiness requirements.
5) The accessories (i.e. remote switch and antennas) referenced in this manual are those most commonly
associated with the ARTEX ELT 345. Other options, such as an alternative remote switch configuration or a
navigation interface, should be installed and maintained in accordance with instructions specific to the
accessory.
NOTE: Contact ACR Electronics, Inc. for optional accessories approved for use with the ARTEX ELT 345.
6) To ensure proper operation, only parts listed in the Illustrated Parts List of this manual or those recommended
by ACR Electronics, Inc. may be used as replacement parts for the ARTEX ELT 345.