The standard Wholesale high temperature coaxial cable in china is a high-quality video transmission line, which can transmit TV signals with low loss in a wide frequency band. Wholesale high temperature coaxial cable in china is the most widely used video transmission medium, which is generally used for short and medium distance video signal transmission. The electrical characteristics of Wholesale high temperature coaxial cable in china make it very suitable for transmitting full video signals from the camera to the monitor. In practical applications, almost all wires can be used as telephone lines, but standard high-temperature coaxial cables are required to transmit video signals with a frequency of 20hz~6mhz without any attenuation.

Wholesale high temperature coaxial cable in china is composed of inner conductor copper core wire (single strand solid wire or multi strand stranded wire), insulation layer, mesh braided outer conductor shielding layer and protective plastic outer layer. Due to the shielding layer of outer conductor, Wholesale high temperature coaxial cable in china has good anti-interference performance and is widely used in high-speed data transmission and image transmission.

According to the standard, only 75 Ω type can be used for video transmission. Although the appearance of Wholesale high temperature coaxial cable in china with other impedances is similar to that of 75 Ω type, the quality of transmitted images will become particularly poor when the distance exceeds more than ten meters.

In order to obtain the best transmission effect, Wholesale high temperature coaxial cable in china with coverage ratio greater than 95% should be selected; The core wire is preferably copper wire or copper clad wire. The copper clad wire is made of steel wire and coated with a layer of copper. This wire has good tensile strength and is suitable for long-distance laying through pipes. There are cables with 65% coverage in the market, which should not be used. The video transmission system needs to use cables with a coverage ratio greater than 95% to prevent external electromagnetic interference from penetrating into the video signal through the barrier layer. The larger the cross-sectional area of the core conductor, the smaller the transmission loss, so that it can transmit a longer distance. Therefore, the cable with thick core wire should be used for long-distance outdoor transmission. The diameter of most outdoor coaxial cables is generally more than 1.3 cm.

Generally, Wholesale high temperature coaxial cable in china is used for transmission, and syv-75-5 coaxial cable is mostly used, where 75 indicates that the characteristic impedance of the cable is 75 Ω, and 5 indicates the wire diameter of the cable. If the transmission distance is long, in order to reduce the attenuation of the transmission line to the signal, a thicker syv-75-7 or syv-75-9 coaxial cable can also be used.