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81
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.
Содержание AK-451 Series
Страница 23: ...23 Figure A Front view of ELT Figure B 3 D view of ELT ...
Страница 31: ...31 Figure 2 1 Mounting Tray for ELT AF AP P N 450 013 Figure 2 2 Holder for ELT AF AP P N 450 014 ...
Страница 32: ...32 Figure 3 Mounting Tray with Clamp Holder for ELT AF AP ...
Страница 37: ...37 Figure 6 Whip Antenna Model AK 451 017 1B ...
Страница 39: ...39 Figure 2 1 2 ELT with mounting tray holder and adapter tray ...
Страница 42: ...42 Figure 7 1 Rod Antenna AK 451 017 2A 1 ...
Страница 45: ...45 Figure 8 Blade Antenna AK 451 017 3A ...
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Страница 50: ...50 Figure 10 ELT Remote Switch Installation Figure 10 1 Mounting bracket for ELT Remote Unit Continued ...
Страница 51: ...51 Figure 11 Remote Audio Buzzer Monitor P N 451018 ...
Страница 54: ...54 Figure 12 2 Interconnecting Wiring Cable between ELT Remote Unit and Main Unit Part No 4500041 4 ...
Страница 63: ...63 Figure 14 1a Wiring Diagram for AK 451 with 4 wire interconnecting ELT Main Unit and Remote Switch Unit ...
Страница 64: ...64 Figure 14 1b Wiring Diagram for AK 451 with 2 wire interconnecting ELT Main Unit and Remote Switch Unit ...
Страница 79: ...79 Figure 18 ELT Front Panels Main Unit and Remote Unit ...
Страница 84: ...84 ELT S Top Label Figure 19 Automatic Portable ELT AP with integral antenna Survival ELT S ...
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Страница 138: ...138 Table 1 List of all available Protocols ELT Non Location Protocols ...
Страница 139: ...139 ELT Location Protocols User Location Protocols ...
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Страница 230: ...230 APPENDIX K MATERIAL SAFETY DATA SHEET FOR BATTERY ...
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