SYV refers to solid polyethylene insulated coaxial cable, and the national standard code is radio frequency cable - also known as "video cable”. The video cable generally referred to is TV cable, and can also be used as a cable for surveillance cameras in the field of security. The transmission of video signals is a coaxial cable used to transmit video baseband analog signals, used for closed-circuit monitoring, video conferences, video intercom systems, etc. to transmit analog signals.(1). The conductor is made of high-purity oxygen-free copper, and the signal transmission attenuation is small. (2). The shield is made of bare copper high-density braid, which can effectively block external electromagnetic interference. (3). Characteristic impedance 75±3Ω (4). High-quality PVC sheath, anti-aging, wear-resistant and flexible (5). Operating temperature range: -15℃ to 70℃ (6). 200m/300m per roll or customized length