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

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In the event of an accident, ensure that the External Aircraft Antenna has no damage.
Important:
If the ELT is accessible after the accident,
place the Main Switch in the ON
position and monitor it on 121.5 MHz for proper operation if possible. If the
Antenna is broken off of the Aircraft, the ELT Unit should be removed and the
portable antenna to be used. If the ELT Unit is to remain at the Aircraft
site, it should
be placed on a large metallic portion of the airframe with its Antenna pointing
skyward. The Green ON lights should be flashing after the accident.
If the ELT is to be taken along as the Portable Unit when leaving the scene of the
accident, place the Main switch in the ON position and keep the Antenna vertically
oriented as much as possible. The ELT Green ON light should be flashing.
3.3.4
Green ON lights, Buzzer sound, and Antenna check:
3.3.4.1 Green ON Lights and Buzzer Sound Functions
:
Green ON lights, located on the ELT main unit and remote switch unit:

In ON mode: Green ON LED flashes continuously (1 second ON, 4 second
OFF) and the Buzzer sound periodically. The ELT swept Tone must be heard on the
121.5 MHz VHF Radio. This is to indicate that the ELT has been manually activated.

In ARM mode: Green ON light flashes continuously (1 second ON, 4 second
OFF) and the Buzzer sound periodically. ELT swept Tone is heard on the 121.5 MHz
VHF Radio. This is to indicate that the ELT has been auto activated by the G switch.
3.3.4.2 Antenna Check: A low quality AM Broadcast Radio Receiver or
Equivalent Test Equipment should be used to determine if energy is being transmitted
from the Antenna. When the Antenna of this Radio (tuning dial on any setting) is
held about 6 inches from the activated ELT Antenna, the ELT Aural tone will be
heard (see note below). The ELT must be reset by pressing either the RESET push
button located on the ELT Main unit or the ELT Remote Unit.
Note:
This is not a measured check, but it does provide confidence that the Antenna is
radiating with sufficient power to aid search and rescue. The Aircraft’s VHF
Receiver, tuned to 121.5 MHz, may also be used. This Receiver however is more
sensitive and could pick up a weak signal even if the radiating ELT’s Antenna is
disconnected. Thus, it does not check the integrity of the ELT System or provide the
same level of confidence as does an AM Radio.