Maritime Lifesaving Emergency Position Indicating Radio Beacon -
EPIRB
1. General Information:
The emergency position indicating radio beacon is an emergency
device that is used only under very serious and emergency
conditions. False alarms will result in loss in life and money.
The Satellite Emergency Position-Indicating Radio Beacon (EPIRB) is
used in the global maritime distress and safety system (GMDSS) of
Cospas/Sarsat system.
The self-floating Satellite Emergency Position Indicating Radio
Beacon transmits 406MHz emergency signal and 121.5MHz homing
signal, which meet relevant regulations of IMO/IEC and
Cospas/Sarsat. It is a necessary equipment in emergency search and
rescue.
When the ship sinks down, the Epirb will automatically release from
the release device, and transmits 406MHz SOS signals. The signal
will be receives by Cospas/Sarsat system satellite and forwarded to
coast terminals. LUT will get the location of the position
indicating beacon through decoding and analyzing, and send the data
to RCC, for carrying out emergency rescue.
The Epirb sends emergency signal to rescue systems all around the
world through satellite. The signal can be received in any place
and be quickly identified and located, with the precision within
2nm.
2. Product Specifications
Operating temperature range: -20°C ~ +55°C
Storage temperature range: -40°C ~ +65°C
Battery: Li/SOCl2, period of validity: 5 years
Operating time: 48h@ -20°C, 80h@+20°C
Body case: ABS plastic
Waterproof capability: 1bar
Dimensions: Φ140/ H231.5mm (antenna not excluded)
Weight: < 1.7kg
Strobe light: 24 times per minute (>1cd)
406MHz satellite signal transmitting:
Transmitting frequency: 406.040MHz ± 1kHz
Frequency stability
- Short-term: < 2 × 10-9/100ms
- Medium term: average gradient: ±1 × 10-9/min
Residual frequency change: ≤3 × 10-9
Output power: 5W (37dBm) ± 2dB
Phase modulation: 1.1rad ± 0.1rad
Repetition period: 47.5s ~ 52.5s
Transmission time: 520ms ± 1% or 440ms ± 1%
Data encoding: Bi phase L
121.5MHz homing transmitting:
Transmitting frequency: 121.5MHz ± 3kHz
Output power: > 50mW (+17dBm)
Modulation type: A3X
Modulation duty cycle: 33% ~ 43%
Transmission duty cycle: 97%(continuously transmitting)
Global positioning system
Receiver type: 50 Channels, GPS L1 frequency, C/A Code
Position accuracy: <100m (Horizontal, Autonomous)
Cold start: 32s (Autonomous)
Receive antenna: Ceramic patch
