Figure 11. short and long 406 mhz message examples, O. elt reset check – item 5h, P. installed transmitter test – item 6 – ACR&Artex ME406 Portable ELT User Manual

Page 41

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25-62-31

Page 41 of 85

JUN 25/13

ARTEX PRODUCTS / ACR ELECTRONICS, INC

DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL

ME406P (453-6611)

(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

11. Short and Long 406 MHz Message Examples on page 41.

(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 43.

Figure 11. Short and Long 406 MHz Message Examples

SUBTASK 25-62-31-750-010

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 43.

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 25-62-31-750-011

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 25-62-31-410-001 on page 68.

(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

Clear

Done

Print

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

Clear

Done

Print

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