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SECTION III
OPERATION
3.1
GENERAL
This section describes the operation of the ELT, Emergency Locator Transmitter, mo
tdel AK-451.
The following types are applicable for the model AK-451:
a.
Automatic Fixed - Fixed ELT (AF):
See paragraph 1.2.1 (a)
b.
Automatic Portable - ELT (AF) (AP) with dual antennas:
See paragraph 1.2.1 (b)
c.
Automatic Portable - ELT (AP):
See paragraph 1.2.1 (c)
d.
Survival-ELT (S):
See paragraph 1.2.1 (d)
The AK-451 is a "third generation ELT," transmitting on 406.028, 121.5 and 243.0
MHz. The ELT is designed to meet or exceed the requirements of TSO-C126 and
TSO-C91a and the mandatory automatic ELT requirements of FAR Part 91. The ELT
meets the requirements of DOT Aviation Regulations, Section 3, Chapter 3, Part 2.
The ELT automatically activates during a crash and transmits the standard swept tone.
The Green ON lights flashing located on both the ELT Main Unit and the Cockpit
Remote Switch unit and the buzzer sound periodically indicates when the ELT is
activated. The ON switch on the Remote Switch Unit allows you to turn on the ELT
for testing. The RESET Switch on the Remote Switch Unit enables to reset the ELT.
In normal operation, the Main Switch on the ELT Unit must be selected at “ARM"
position.
Note:
You cannot "disarm" or disable the unit from the cockpit; you can only deactivate the
ELT after it has been activated.
The ELT unit is able to withstand extremely harsh environments. Units exactly like
yours have been subjected to numerous 500G shock pulses; 1000 pounds crash
weights and severe penetrator tests, and continue to operate normally. Continued
operation in a temperature range of -20 to +55 degrees Celsius is assured.
Summary of Contents for AK-451 Series
Page 23: ...23 Figure A Front view of ELT Figure B 3 D view of ELT ...
Page 32: ...32 Figure 3 Mounting Tray with Clamp Holder for ELT AF AP ...
Page 37: ...37 Figure 6 Whip Antenna Model AK 451 017 1B ...
Page 39: ...39 Figure 2 1 2 ELT with mounting tray holder and adapter tray ...
Page 42: ...42 Figure 7 1 Rod Antenna AK 451 017 2A 1 ...
Page 45: ...45 Figure 8 Blade Antenna AK 451 017 3A ...
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Page 51: ...51 Figure 11 Remote Audio Buzzer Monitor P N 451018 ...
Page 79: ...79 Figure 18 ELT Front Panels Main Unit and Remote Unit ...
Page 84: ...84 ELT S Top Label Figure 19 Automatic Portable ELT AP with integral antenna Survival ELT S ...
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Page 138: ...138 Table 1 List of all available Protocols ELT Non Location Protocols ...
Page 139: ...139 ELT Location Protocols User Location Protocols ...
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Page 223: ...223 Japan Civil Aviation Board Approval ...
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Page 230: ...230 APPENDIX K MATERIAL SAFETY DATA SHEET FOR BATTERY ...
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