EBC 406AFHM – AUTOMATIC FIXED MILITARY HELICOPTER EMERGENCY LOCATOR TRANSMITTER
Military/helicopter version of the EBC406AFH. For aft mounting, is painted flat black, transmits on three frequencies. Uses an external rod antenna. Meets TSO-C126 and TSO-C91a.
Product Manual
The EBC 406AFHM is an aft or tail mounted ELT for rotary wing military or governmental aircraft in which night vision equipment is used but where an external rod antenna is needed. These ELTs are painted a non-reflective flat black to be night vision compatible. The EBC 406AFHM has an external rod antenna and so it can be installed in the aft section of the aircraft provided that the pilot can reach it in case of an emergency. To meet the needs of our military or governmental users these ELTs transmit on three frequencies: 406.028, 121.5 and 243.0MHz.
The system comes with a transmitter, survival tape antenna, mounting bracket, a battery pack and an external rod antenna with a 6 ft. cable and a Remote Control Monitor with a connector kit. If the ELT is activated a built-in monitor emits a loud beeping tone and the LED flashes. The survival antenna allows the ELT to transmit a good signal when used outside the aircraft.
Intended for military or civilian governmental use it has been designed with the newest technology. The EBC 406AFHM incorporates the best and proven features that characterize all of EBC’s emergency locator transmitters. These transmitters have encapsulated electronics and battery packs to provide added protection against shock, moisture and other environmental hazards.
A self-test feature is built into the EBC 406AFHM. This feature allows the pilot to test for output power on both 406.028 and 121.5 MHz, the connection with the antenna, and the condition of the digital signal. The test can be done directly at the ELT or through the Remote Control Monitor.
The EBC 406AFHM meets the requirements of TSO-C91a and TSO-C126, approved by COSPAS-SARSAT and meets FCC requirements under Part 87.
PHYSICAL FEATURES
- Size (ELT): 2.9″ W x 2.5″ D x 6.7″ H
- Total Weight: 2.5 lbs. (including battery, but not antennas, cable or remote control monitor)
- Case Material: Aluminum
- Finish: Black Baked Enamel
- Antennas: External – Three frequency rod standard
- Survival/Portable – Three frequency tape
SPECIAL FEATURES
- Encapsulated for waterproofness and shock resistance
- Handhold lanyard
- Mounting bracket with latch to hold the ELT securely in place
- Self-test feature with audible and visual indication of pass or fail
- Fire resistant
- Easy installation in cabin
- Recessed 3-position toggle switch
- 2 year parts and labor warranty
- True 360˚ spherical G-switch
SPECIFICATIONS
| Operating Frequencies: |
406.028 MHz, 243.0 MHz and 121.5 MHz |
| Modulation 406.028 MHz:- |
Biphase L (16KOG1D) |
| Modulation 121.500 MHz: |
Swept tone 1600 Hz to 300 Hz, 2-4 times/second |
| Output Power on 406.028 MHz: |
5W for 24 hours at -20˚C |
| Output Power on 121.500 MHz: |
50 mW min for 50 hours at -20˚C |
| Operating Temperature: |
-20˚C to +55˚C |
| Battery Type: |
Lithium Manganese Dioxide (GS-46 Battery Pack) |
| Useful Battery Life: |
5 years or 1 hour of cumulative use |
| Automatic Activation: |
Velocity change of 3.5 ft/sec activates ELT |
| Altitude: |
50,000 ft |
| Decompression: |
8000 ft to 50,000 ft |
| Over Pressure: |
-15,000 ft |
| Humidity: |
95% for 144 hours |
| Shock Performance: |
500 Gs on 6 Axis for 4ms |
|
100 Gs on 6 Axis for 100ms |
| Vibration: |
Withstands 10 Gs |
| Immersion: |
Withstands 24 hours in salt water |
| Message Protocols: |
Aviation User Protocol, Serialized Aviation User Protocol |
| Activation Alerts: |
LED and buzzer |
| Input Power: |
No Aircraft Power Required |
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