Ameri-King AK-451 Series, Installation And Operation Manual

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Detailed Operation Check:
3.3.1 Main Switch ON/OFF/ARM Operation:
In normal operation, the Main Switch, located on the ELT main unit, must be in the
"ARM" position. In the event of a crash, an acceleration activated crash censor (G-
switch) turns the ELT 'on' automatically when the ELT experiences a change in
velocity (or deceleration) of 4.5 fps ± 0.5 fps. Activation is also accomplished by
means of the cockpit mounted remote control unit or the "ON" switch on the ELT
main unit. To reset the ELT press either "RESET" switch on the remote control panel
or on the main unit.
The ELT has an "OFF" position. This allows the beacon to be handled or shipped
without 'nuisance' activation. Care should be taken when transporting or shipping the
ELT not to move the switch or to allow packing material to become lodged such as to
toggle the switch.
Main switch, alternate positions:

" ON :" ELT transmits immediately. Both Green ON lights on the main unit and
remote switch unit flash and the buzzer sound, at rate of 1 second ON, 4 seconds
OFF. The ELT swept Tone must be heard on the 121.5 MHz VHF Radio.

" OFF :" The ELT is turned off.

" ARM :" ELT self-test is confirmed after 24 seconds. If the self-test is passed, the
2 Green ON lights and the buzzer sound must be extinguished. The ELT swept
Tone must be silent on the 121.5 MHz VHF Radio.

The ELT system is then in the "ARM" mode.
3.3.2 Transmitter ID Programming and Self-Test:
Turn the main switch from the "OFF" position to the "ARM" position. The
Buzzer sound and the 2 Green ON lights shall illuminate for 4 seconds, then
extinguish. This is to allow coding programming during the next 20 seconds window
and self-test for 1 second thereafter.