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 29 of 84
Jun 25/13
ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ME406 (453-6603), ME406HM (453-6604)
SUBTASK 25-62-30-870-002
B. Electrical
(1) Table 3 lists the electrical specifications of the ME406 Series ELT.
Table 3 Electrical Specifications
CRITERIA PARAMETER CHARACTERISTIC
Operating Frequencies
406.028 MHz, or higher ± 1 KHz
121.5 MHz ± 6.075 kHz
Modulation
406 MHz Bi-Phase L (G1D)
121.5 MHz Amplitude Modulation (A3X)
Transmitter Duty Cycle
406 MHz
440 ms (± 1%), or
520 ms (± 1%), every
50 seconds (± 5%)
121.5 MHz Continuous
Peak Effective Radiated
Power (PERP)
406 MHz
3.2 W to 7.2 W (37 dBm ± 2 dBm)
PERP or EIRP for 24 hrs
@ -20° C to +55° C
121.5 MHz
Min. 50 mW (17 dBm) PERP for 50 hrs
@ -20° C to +55° C
or 100 mW EIRP (20 dBm) for 48 hrs
@ -20° C to +55° C
Occupied Bandwidth
406 MHz 20 KHz max.
121.5 MHz 25 KHz max.
Spurious Emissions
406 MHz Per RTCA/DO-204
121.5 MHz Per CFR Title 47 (FCC), Part 87
Battery
Type of Cell Lithium Manganese Dioxide
Voltage 6.0
Amp-Hour Rating 11.1