Customized coaxial cable from China can be divided into baseband coaxial cable and broadband coaxial cable (i.e. network coaxial cable and video coaxial cable). Customized coaxial cable from China is divided into 50 Ω baseband cable and 75 Ω broadband cable. Baseband cable is divided into thin coaxial cable and thick coaxial cable. The baseband cable is only used for digital transmission, and the data rate can reach 10Mbps.

Customized coaxial cable from China refers to a cable with two concentric conductors, and the conductor and shielding layer share the same axis. The most common customized coaxial cable from China is composed of copper conductors isolated by insulating materials. Outside the inner layer of insulating materials is another layer of ring conductors and their insulators, and then the entire cable is wrapped by PVC or Teflon sheaths.

Transmission distance of coaxial cable video line includes: 75-3 (100m) transmission distance, 75-5 (300m) transmission distance, 75-7 (500--800m) transmission distance, 75-9 (1000---1500m) transmission distance, 75-12 (2000---3500 m) transmission distance, 75 represents resistance, -3 represents wire diameter, what is the main difference between SYV video line and RF line (2005-5-30) noun: SYV solid polyethylene insulation, PVC sheath, national standard code is RF cable - also known as video cable. Different physical properties of insulation layer: SYV is filled with 100% polyethylene, with dielectric constant ε= About 2.2-2.4; SYWV is also filled with polyethylene.