What materials does the video cable have(1)?
Update:Dec 08,2021
Summary:The video cable is used to transmit video signals. It is a coaxial cable used to transmit video baseband analog signals. Video cables generally have t...
The video cable is used to transmit video signals. It is a coaxial cable used to transmit video baseband analog signals. Video cables generally have two impedances of 75 ohms and 50 ohms, and can also be roughly subdivided into -3, -5, -7, -9 and other models.
Video cables are divided into SYV and SYWV according to different materials.
Material
SYV
Refers to the solid polyethylene insulated coaxial cable, the national standard code is radio frequency cable-also called "video cable"
The video cable generally refers to TV cable, which can also be used as a surveillance camera cable in the security field.
The following are the parameters of the general video cable
75 represents impedance, and the following 3 and 5 represent its insulation outer diameter (3mm/5mm)
S---coaxial radio frequency cable in SYV, Y---polyethylene, V---polyvinyl chloride.
SYV75-3 transmission effect is good within 300 meters.
SYV75-5 transmission is better within 800 meters.
75-3 Transmission distance 100 meters
75-5 Transmission distance 300 meters
75-7 Transmission distance 500--800 meters
75-9 Transmission distance 1000---1500 meters
75-12 transmission distance 2000----3500 meters
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