VEP8A Satellite Emergency Position Indicating Radio Beacon

System Overview
    The COSPAS-SARSAT system is a satellite system that assists in search and rescue operations by providing alerts and location data. It detects the 406 MHz signals from beacons via space stations and ground equipment to determine the coordinates of incident locations. The location of the incident and other relevant information are transmitted through the relevant COSPAS-SARSAT Mission Control Centers to appropriate domestic search and rescue organizations. Its goal is to assist all organizations worldwide with relevant responsibilities in conducting search and rescue operations, whether at sea, in the air, or on land.
    The VEP8A Satellite Emergency Position Indicating Radio Beacon (EPIRB) operates based on the COSPAS-SARSAT system and is used by the International Maritime Organization (IMO) in the Global Maritime Distress and Safety System (GMDSS). Figure 1 illustrates how a distress signal based on independent identification operates within the global distress alert system.

Main Technical Specifications
Battery Pack: Lithium battery, 5-year warranty
Operating Time: >48h @ -20°C
Strobe Light: 24 flashes/minute (minimum brightness 1.0cd)
Dimensions: Φ140/H231.5mm (excluding antenna)
Weight: <1.7 kg
Operating Temperature Range: -20°C to +55°C
2. 406MHz Satellite Transmitter
Transmission Frequency: 406.040MHz ±1kHz
Transmission Power: 5W (37dBm) ±2dB
Phase Modulation: Peak 1.1rad ±0.1rad
Encoding Method: Biphase-L Encoding
3. 121.5MHz Homing Transmitter
Transmission Frequency: 121.5MHz ±50ppm
Transmission Power: 17dBm ±3dB
Modulation Method: A3X
Transmission Duty Cycle: 97% (continuous transmission)
4. AIS Search and Rescue Transmitter
Transmission Frequency: 161.975MHz, 162.025MHz
Transmission Power: 1W (30dBm) ±2dB
Modulation Type: GMSK, FM, 9600bps
Transmission Duration: ≤26.6ms
5. Satellite Positioning Receiver
Receiving Channels: 50 channels, L1 frequency
Receiving Antenna: Built-in ceramic patch
System Positioning Accuracy: <100m

Dongtai Kaihang Safety Equipment Co., Ltd. (referred to as Kaihang Safety Equipment), established in 2015, is a supplier based in Yancheng City, Jiangsu Province, engaged in the production of firefighting equipment, ship accessories, lifesaving equipment, emergency rescue gear, environmental protection equipment, security devices, and diving equipment. The company primarily serves shipyards, chemical enterprises, municipal salvage projects, petroleum, power plants, power stations, shipping, water conservancy, port authorities, and municipal companies. It also acts as an agent for various imported and exported brands (including Furuno Japan, Samyung Korea, JRC Japan, Sailor Denmark, Yokogawa Japan, McMurdo UK, Lawrence US, Humminbird Japan, Garmin US, Raymarine, Icom Japan, Kenwood, Ocean Systems Korea, Marantz Japan, Kobelt Morgan US, Amron, Coltri Sub Italy, Bauer Germany, etc.). Over the years, the company has always adhered to the principle of "integrity as the foundation, quality as the advantage," focusing on market demands. Main products include: net buoy, personal locator beacon, fish finder, depth sounder, marine radar, marine intercom, VHF radio, wind speed and direction indicator, radar transponder, electronic chart, marine MF/HF radio, rudder angle indicator, satellite compass, satellite C station, ship autopilot system, Beidou navigation shipborne terminal, marine sonar detection system, net buoy, marine automatic identification system, NAVTEX receiver, marine satellite emergency position indicating radio beacon, GPS marine navigator, marine life jacket, AIS lifebuoy light, lifebuoy, water rescue equipment, inflatable rescue belt, platform lifting basket, throwable inflatable life raft, yacht life raft, inflatable safety ring, marine freshwater, survival rations, water barrier, rescue buoy, marine magnetic compass, projection magnetic compass, marine steam whistle, marine ventilator, marine label, marine immersion suit, fire proximity suit, heavy-duty waterproof suit, combination eye wash station, firefighting protective clothing, fire insulation suit, liquid nitrogen protective suit, gas mask, marine gear pump, Coltri Sub breathing air compressor, Bauer cylinder filling pump, Tohatsu fire pump, CWZ marine centrifugal pump, CWX marine vortex pump, KCB gear pump, marine sewage grinder pump, CGW marine sewage pump, fire pump floating pump, foam transfer pump, electric explosion-proof transfer pump, water-driven transfer pump, backpack forest fire pump, marine emergency fire pump, portable fire pump, hand pump (CS-20 CS-25 CS-32 CS-40), diving helmet, diving suit, diving fins, heavy salvage equipment, diving gas distribution panel, diving camera, diving telephone, diving buoyancy vest, diving umbilical, diving flashlight, diving mask, diving cylinder, diving air compressor, diving pressure gauge, snorkeling equipment, foam fire extinguishing system, high-pressure water mist fire extinguishing system, fire smoke exhaust fan, explosion-proof gas detector, fire hydrant, fire monitor, electric fire monitor, large-space intelligent fire monitor, pressure foam proportioning system, fire hose station, oil containment boom.