User guide
Table Of Contents
- Record of Revisions
- Service Bulletin List
- List of Effective Pages
- Table of Contents
- List of Figures
- Introduction
- Description and Operation
- Test and Fault Isolation
- 1. Inspection and Test Regulatory Requirements
- 2. Inspection and Test Procedures
- A. Checklist
- B. Preparation
- C. Coax Cable and Wiring Connections Inspection – Item 1
- D. Mounting Tray and Hardware Inspection – Item 2
- E. Battery Pack Inspection – Item 3
- F. G-Switch Functional Check – Item 4
- G. Performance Testing Setup
- H. 121.5 MHz Frequency Measurement – Item 5a
- I. Audio Modulation Check – Item 5b
- J. 121.5 MHz Power Output Measurement – Item 5c
- K. 406 MHz Frequency Measurement – Item 5d
- L. 406 MHz Power Output Measurement – Item 5e
- M. Current Draw Test – Item 5f
- N. Digital Message Verification – Item 5g
- O. ELT Reset Check – Item 5h
- P. Installed Transmitter Test – Item 6
- Q. Antenna Test – Item 7
- R. Inspection and Test Documentation – Item 8
- 3. Fault Isolation
- Removal
- Installation
- 1. Regulatory Requirements and Guidelines
- 2. Mounting Tray
- 3. Antenna
- 4. Remote Switch
- 5. Buzzer
- 6. Wiring
- A. General Considerations and Recommendations
- B. Remote Switch Harness Fabrication
- C. ELT D-Sub Plug Installation
- D. Cockpit Remote Switch 9-Pin Plug Installation
- E. Wiring Installation
- F. Antenna Connection
- G. Cockpit Remote Switch Power Connection
- H. Remote Switch Alternate Power Source
- I. Airframe Ground Connections
- J. Buzzer Connections
- K. Remote Switch Final Installation
- 7. ELT Installation
- 8. Battery Pack Installation
- 9. Helicopter Installations - Special Considerations
- Appendix A – ELT Registration
- Illustrated Parts List
25-62-30
Page 37 of 84
Jun 25/13
ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ME406 (453-6603), ME406HM (453-6604)
SUBTASK 25-62-30-750-005
J. 121.5 MHz Power Output Measurement – Item 5c
(1) Connect the measuring device, referring to SUBTASK 25-62-30-750-002 on page 35.
(2) Activate the ELT, if necessary, by placing the control switch in the “ON” position.
(3) Wait three minutes.
(4) Read the displayed amplitude for 121.5 MHz. The amplitude must be within the minimum
specified for 121.5 MHz in Table 3 on page 29 at the terminal output.
SUBTASK 25-62-30-750-006
K. 406 MHz Frequency Measurement – Item 5d
CAUTION
: POWER OUTPUT IS APPROXIMATELY 37 DB (5 WATTS). BE SURE ADEQUATE
ATTENUATION IS INSERTED IN-LINE BETWEEN THE ELT ANTENNA OUTPUT AND THE
MEASURING DEVICE TO PROTECT THE INPUT CIRCUITS OF THE MEASURING DEVICE.
(1) Connect the measuring device, referring to SUBTASK 25-62-30-750-002 on page 35.
(2) Activate the ELT, if necessary, by placing the control switch in the “ON” position.
(3) Wait three minutes.
(4) Measure the frequency. Measure the frequency after the three-minute waiting period. The
frequency must be within the tolerance specified in Table 3 on page 29.
NOTE
: The exact 406 MHz frequency used is printed on the ELT product label.
SUBTASK 25-62-30-750-007
L. 406 MHz Power Output Measurement – Item 5e
CAUTION
: POWER OUTPUT IS APPROXIMATELY 37 DB (5 WATTS). BE SURE ADEQUATE
ATTENUATION IS INSERTED IN-LINE BETWEEN THE ELT ANTENNA OUTPUT AND THE
MEASURING DEVICE TO PROTECT THE INPUT CIRCUITS OF THE MEASURING DEVICE.
(1) Connect the measuring device, referring to SUBTASK 25-62-30-750-002 on page 35.
(2) Activate the ELT, if necessary, by placing the control switch in the “ON” position.
(3) Wait three minutes.
(4) Read the displayed amplitude of the 406 MHz burst that follows the three-minute wait period.
The amplitude must be within the minium specified for 406 MHz in Table 3 on page 29, at the
output terminal.
(5) Deactivate the ELT by placing the control switch in the “ARM” position.