1, tap the potential of existing network equipment.
In case of emergency, a large number of sudden telephone traffic often occurs in local areas and concentrated periods, and it is the key to make maximum use of existing equipment.
2. Inmarsat
As a satellite communication system, it has the characteristics of convenience, reliability, global coverage, all-weather, portability and mobility. It has become the main means of communication in disaster areas and played an irreplaceable role in the fields of earthquake relief command and communication, news information transmission and so on.
3. Emergency communication vehicle
It is mainly used for loading 2G/3G and wireless equipment in emergency vehicles, and for emergency communication where people gather in a large area due to major events (such as the Olympic Games and large outdoor parties) or communication in a certain area is interrupted due to unexpected events (such as the damage of mobile antenna towers in a certain area).
4. Ultra-short wave radio station
The frequency range is wide, involving 150MHz, 200MHz, 350MHz, 400MHz and other frequency bands. Because the public communication network is extremely complex, it often appears fragile in the face of disasters. The ultra-short wave wireless communication mode has clear voice, strong anti-interference ability, compact and portable radio station, and strong mobile communication ability, which is especially suitable for disaster relief and emergency site use without relying on wires and optical fibers.