Coaxial cable is a cable composed of coaxial conductors insulated from each other inside and outside: the inner conductor is copper wire, and the outer conductor is copper tube or net. The electromagnetic field is closed between the inner and outer conductors, so the radiation loss is small and the influence of external interference is small. It is often used to transmit multichannel telephone and television. It is also one of the more common transmission media in the LAN.
There are many different types of coaxial cables that support a wide range of professional applications, such as satellite communications, industrial, military and Marine applications. The three most common types of non-industrial coaxial cable are rg6 cable, rg11 cable, and rg59 cable, with rg6 cable most commonly used in applications such as CCTV and CATV in enterprise environments.
The center conductor of the rg11 cable is thicker than that of the rg6 cable, which means that the insertion loss is lower and the signal is transmitted over a longer distance. However, the thicker rg11 cable is more costly and very resistant to bending, making it less suitable for deployment in internal applications and more suitable for outdoor installations over long distances or straight backbone links.
The rg59 cable is more flexible than the rg6 cable, but it has higher losses and is rarely used in applications other than low-bandwidth, low-frequency analog video applications (rear-view cameras in automobiles) with short distances and limited slot space.
Coaxial cable is a kind of telecommunication equipment, which is widely used in wireless communication system, data communication system and multimedia communication system. The coaxial cable consists of a central core wire (generally copper wire) wrapped on both sides of the upper packing wire. It is a high transmission rate, high signal density signal transmission medium can support high-speed data transmission: the general coaxial cable can meet the home multimedia system telephone line, Internet broadband and mobile network wireless communication and other applications.
Post time: 2024-01-22 09:44:08