May 08, 2024

What is the coaxial cable

What is the coaxial cable
Coaxial cable transmission distance coaxial cable specification type coaxial cable connector
Coaxial cable transmission distance:
SYV - coaxial RF cable
The only video cable in general is TV cable, and it can also be used as a surveillance camera cable in the security field.
The following is the general video line parameters
75 stands for resistance, followed by 3 and 5 for its outer diameter (3mm/5mm)
SYV S - coaxial RF cable, Y - polyethylene, V - PVC.
SYV75-3 transmission is effective within 300 meters.
SYV75-5 transmission better than 800 meters.
Coaxial cable transmission distance video line
75-3 (100 meters) transmission distance
75-5 (300 meters) transmission speed distance
75-7 (500--800 meters) Transmission speed
75-9 (1000---1500 meters) Transmission speed
75-12 (2000----3500 meters) Transmission speed
75 represents resistance, -3 represents wire diameter
What is the main difference between SYV video cable and RF cable? (2005-5-30)
SYV - solid polyethylene insulation, PVC jacket, the national standard code is RF cable - also known as video cable.
The physical properties of the insulating layer are different: SYV is filled with 100% polyethylene and the dielectric constant ε = 2.2-2.4; and SYWV is also filled with polyethylene.
The above is a reference to the transmission distance parameters of the coaxial cable introduced by Xiaobian, and I hope to help everyone.
What is the coaxial cable
The coaxial cable can be divided into baseband coaxial cable and broadband coaxial cable (ie, network coaxial cable and video coaxial cable) from the purpose of use. Coaxial cable is divided into 50Ω baseband cable and 75Ω broadband cable. The baseband cable is subdivided into thin coaxial cable and coarse coaxial cable. The baseband cable is only used for digital transmission and the data rate can reach 10Mbps.
Coaxial cable refers to a cable that has two concentric conductors, and the conductor and the shield share the same axis. The most common coaxial cable is composed of insulated copper wire conductors. On the outside of the inner insulation material is another layer of the ring conductor and its insulator. The entire cable is then sheathed with PVC or Teflon material. .

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