 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
|
|
 |
 |
 |
 |
 |
 |
|
Technical Characteristics | Mechanical Characteristics | Environmental Characteristics | Reliability
We are pleased to provide the following information to assist seafarers from around the world. However, neither Safety at Sea (Australasia)Pty Ltd nor its agents will have any responsibility or liability for any inaccuracies, falsehoods or errors in the information. For further information please see our disclaimer notice.
KANNAD
406 AS
Specialist in pinpointing distresses by satellite and number one in 406 MHz maritime Emergency Position Indicating Radio Beacons (EPIRBs), SERPE-IESM extends its range of ELTs with the KANNAD 406 AS.
The KANNAD 406 AS
is an aeronautical survival beacon designed for liferafts.
This new generation of ELT complies with the latest regulation and offers all the improvements of the COSPAS-SARSAT system with the 406 MHz frequency :
- Global coverage
- Precise pinpointing 1 nautical mile.
- Identification of the aircraft in distress (the ELT transmits a unique aircraft identification number)
- Efficient process
of false alarms to avoid costly search and rescue operations
Thanks to its small
size and light weight, the KANNAD 406 AS fits easily inside a liferaft.
It is supplied with a floating collar and a carry off bag.
A flashing lamp and a buzzer indicate activation.
The ELT is programmed with either the aircraft tail number, a serial number or the aircraft operator designator. This operation takes only a few seconds with equipment developed by SERPE-IESM.
An integrated "self
test" checks the main functions of the beacon. The test result is
given by the LED flashing sequence. Short
flashes indicate that the ELT has detected a problem (low RF power, low
battery, faulty VCO lock...). One long flash indicates good operation.
Battery replacement
is only necessary every 6 years thanks to LiMnO2 technology. It should
be pointed out that this technology is proven non hazardous for aircraft
transportation. This represents a considerable improvement over standard
generation ELTs with battery replacement necessary every year or every
two years.
It is recommended a complete check up every 2 years unless otherwise legislated
by national authorities.
The KANNAD 406 AS is qualified by the French Civil Aviation in compliance with EUROCAE ED62 standard and by FAA with TSO-C91a and TSO-C126 applied to "survival" beacons.
P/N : S1823502-01 (transmitter, auxiliary antenna and carry off bag)
Technical characteristics
Electrical performances
| 121.5 / 243.0 MHz Transmitter | |
| Frequencies |
121.5 MHz +/- 6 kHz 243.0 MHz +/- 12 kHz |
| Output power | 20 dBm to 26 dBm for each frequency |
| Duty cycle | Continuous expect during 406 transmission (500 ms every 50s) |
| Modulation type | 3K20A3N |
| Modulation rate | 85 % |
| Modulation signal | Decreasing sweep from 1420 Hz to 490 Hz |
| Repetition rate | 3 Hz |
| Autonomy | Over 48 hours at -20°C |
| 406.025 MHz Transmitter | |
| Frequencies | 406.025 MHz +/- 2 kHz |
| Output power | 37 dBm +/- 2 dB |
| Data encoding | Biphase L |
| Transmission duration |
440 ms (short message) every 50 sec Compatible with long message transmission (520 ms) |
| Repetition rate | 47.5 to 52.5s |
| Speed of transmission | 400 BPS +/-1% |
| Frame synchronisation | 0 0001 11110 1101 0000 (during self test) |
| Autonomy | Over 24 hours at -20°C |
| Batteries | |
| P/N | S18 20 506 - XX |
| Transmitter power supply | 3 x LiMnO2 D type cells |
|
IATA certification for "Transportation as non hazardous goods " |
YES |
| Replacement | Every 6 years |
| Auxiliary antenna | |
| Type | Whip |
| Length | 43 cm (17") |
| Connector type | BNC |
| Frequencies | 121.5 / 243 / 406 MHz |
| Radiation pattern | ¼ wave in VHF / ½ wave in UHF |
Mechanical characteristics
| Housing | |
| Material | Plastic ASA-PC |
| Treatment | Light yellow colour compound (RAL 1018) Fire classification M0 |
| Transmitter dimensions | 172 mm x 82 mm x 82 mm 6.8" x 3.2" x 3.2" |
| Overall dimensions (max. with auxiliary antenna deployed) | 590 mm x 160 mm x 160 mm 23.2" x 6.3" x 6.3" |
| Packed dimensions | 290 mm x 165 mm x 165 mm 11.4" x 6.5 " x 6.5" |
| Weight (incl. Auxiliary antenna, floating collar and batteries) | Typical : 1180 g 2.54 lbs. Max : 1250 g 2.75 lbs. |
| Tightness | 2 toric gaskets |
| Flotation | Yellow foam Æ 160mm (± 5mm) |
Environmental characteristics
| Storage temperature | -55°C to +85°C |
| Operating temperature | -20°C to +55°C |
| Flame | AVGAS flame / 2 minutes |
| Altitude | 55 000 ft |
| Vibrations | DO160C / ED14C Category YLM/C 5Hz to 14 Hz 2a = 5.1 mm (a=amplitude) 14Hz to 45 Hz g = 2 G (g =acceleration) 45Hz to 55 Hz 2a = 0.49mm 55Hz to 2000 Hz g = 3 G Speed : 1 octave / min |
| Shock | 50 G for 11 ms tested at 500 G for 4 ms |
| Crashworthiness | tested at 100 G for 13 ms |
| Penetrator drop | 25 Kg from 20 cm |
| Crush test | 450 Kg / 5 min |
| Explosion | DO160C / ED14C Category A |
| Waterproofness | DO160C / ED14C Category W |
| Magnetic effect | DO160C / ED14C Category Z |
| Induced signal susceptibility | DO160C / ED14C Category Z |
| Radiofrequency susceptibility | In compliance with ED 62 §4.4.10 |
| Radiofrequency emission | DO160C / ED14C Category B |
Reliability
The MTBF calculated
according to MIL HDBK-217F is not significant, bearing in mind that the
equipment is permanently off and operates only during about 100 hours once
activated. However, we can give an estimate of the MTBF in transmission
(i.e. MTBF calculated for all the components energised when the ELT is transmitting).
| MTBF in transmission | 35 000 hours |