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
ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ME406 (453-6603), ME406HM (453-6604)
25-62-30
Page 40 of 84
Jun 25/13
(d) If the ELT is programmed with a location (long message) protocol and disconnected
from the aircraft navigation system or interface device, the message will indicate
“Position Invalid” in lieu of position data, as shown in the right hand example in Figure
10 Short and Long 406 MHz Message Examples.
(5) Repeat the activation and deactivation cycle if the ETS fails to read the message on the initial
try. The 406 MHz oscillator may not be warmed up. If continued attempts to read the
message fail, check for self-test error codes and refer to Table 6 on page 42.
Figure 10 Short and Long 406 MHz Message Examples
SUBTASK 25-62-30-750-010
O. ELT Reset Check – Item 5h
(1) Place the ELT control switch in the “ON” position.
(2) Return the switch to the “ARM” position.
(3) If the ELT is working properly, the LED will stay on for approximately 1 second and then turn
off. If a series of flashes are displayed, refer to Table 6 on page 42.
NOTE
: A 5-flash error indication will occur if the ELT is programmed with a location protocol,
since no navigation input data is present.
SUBTASK 25-62-30-750-011
P. Installed Transmitter Test – Item 6
CAUTION
: DO NOT ALLOW THE DURATION OF THIS TEST TO EXCEED 5 SECONDS. THE ELT
WILL TRANSMIT A 406 MHZ SIGNAL AFTER THE ELT IS ACTIVATED FOR
APPROXIMATELY 47 SECONDS. THE COSPAS-SARSAT SATELLITE SYSTEM WILL
CONSIDER THE 406 MHZ TRANSMISSION TO BE A VALID DISTRESS SIGNAL.
(1) Reinstall the ELT in accordance with SUBTASK 25-62-30-410-001 on page 67.
(2) If required by local aviation regulations, perform the following functional check within the first
5 minutes after the hour (UTC).
(3) Notify any nearby control tower of your intentions.
(4) Tune a receiver, usually the aircraft transceiver, to 121.5 MHz.
NOTE
: An AM radio may be used to receive the signal.
Sarsat Beacon Reader
Beacon ID = ADDF8E345CD35D0
Message Type = Test, Short
Country = 366 USA
Aviation ELT S/N = 6521
Type Approval # = 152
Aux Locating Devices = No
121.5 MHz Beacon = Yes
Nov 13, 2009 11:39 am 55 sec
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Sarsat Beacon Reader
Beacon ID = 2DC75B534AFFBFF
Message Type = Test, Long
Country = 366 USA
Aviation ELT S/N = 6521
Type Approval # = 152
Position = Invalid
121.5 MHz Beacon = Yes
Nov 15, 2009 10:06 am 25 sec
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