ARTEX PRODUCTS / ACR ELECTRONICS, INC.
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ELT 1000 (P/N: A3-06-2749-1)
Y1-03-0259 Rev. U
Company Confidential
Page 29 of 62
M.
Digital Message Verification – Item 5g
1)
Use a beacon reader, such as ARTEX P/N 453-1000, 453-2000, 8700, or 8701 to test the transmitted digital
message.
2)
Connect the beacon tester to the ELT, per the instructions of the reader.
3)
Perform a self-test by placing the control switch in the SELF-TEST position. Once the LED blinks once, release
the switch. Example results are shown in Figure 8 Short & Long 406 MHz Message Examples. Actual messages
will vary depending on the protocol and information programmed into the ELT.
a)
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.
Figure 8 Short & Long 406 MHz Message Examples
N.
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 turn off.
O.
Installed Transmitter / Antenna Test – Item 6
1)
Re-install the ELT in Aircraft.
2)
Perform the following functional check within the first 5 minutes after the hour (UTC), as required by AC
43.13-1, Chapter 12, § 12-22, Note 3.
3)
Notify any nearby control tower of your intentions.
4)
Tune an AM receiver to 121.5 MHz.
NOTE:
A low-cost AM radio is suggested for this test, as the aircraft Comm Transceiver is very
sensitive and may pick up a weak signal, even if the antenna is disconnected from the ELT.
There is no need to activate the beacon to verify 121.5 MHz presence.
5)
Locate the radio approximately 20’ to 30’ from the antenna.
6)
Perform a self-test by moving the switch to “TEST”, then release (cockpit remote switch to the “TEST”
position).
7)
Listen for 2 audible sweeps on the receiver, which takes about 1 second.
8)
Verify the buzzer sounds upon activation.
9)
Note the LED activity on the cockpit remote switch. If the ELT is working properly, the LED will stay on for
approximately 1 second and then turn OFF.
