Beacon Shutdown; Beacon Self-Test - Elta ADT 406 AP User Handbook Manual

C. Beacon shutdown
In the event of a false manoeuvre or untimely operation, shutdown the beacon.
The beacon is shutdown by pressing the RESET/TEST pushbutton on the remote control unit. This control is
not active during the self test sequence or if the ON/ARMED switch is in ON position.
NOTE : Stopping distress signal transmission by means of the remote control unit does not switch the
beacon OFF. It is restored in ARMED mode.
Acknowledgment of the control is displayed by 2 short blink on LED and buzzer.
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D. Beacon self-test
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The ELT ADT 406 AP is designed to perform a self-test, from the remote control unit, or as soon as the
beacon is started up manually.
Actual test transmission on 121.5 MHz for 5 s can be listen on any VHF receiver.
(1)Self-test on the beacon
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Note : in case of use in survival mode without external antenna, the self-test will indicate an antenna
failure, but the beacon will transmit normally on its emergency antenna.
Place the beacon's ARMED/OFF/ON toggle switch (12) in ON position.
After two short blinks and a delay of 3 s, check that the indicator light (11) comes ON and the beacon's
buzzer sounds during 6s.
After a brief blink the self-test report is display :
– 10 s permanent illumination of the indicator light (11) for correct operation,
– 10 s blinking condition of the indicator light (11) for failure detection.
Blinking rate indicates the failure source detection as follow :
. 125 ms ON, 125 ms OFF (Frequency 4 Hz), ELT Check Sum failure (software problem)
. 250 ms ON, 250 ms OFF (Frequency 2 Hz), ELT power failure (UHF and/or VHF)
. 500 ms ON, 500 ms OFF (Frequency 1 Hz), Ext. Antenna connection failure or signal
identification missing.
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Apr 17/03