Electrical parameters
(1) Characteristic impedance of coaxial cable: the average characteristic impedance of coaxial cable is 50±2 ω, and the periodic change of impedance along a single coaxial cable is sinusoidal wave, with the average value of the center ±3 ω, and its length is less than 2 meters .
(2) Attenuation of coaxial cable: generally refers to the attenuation value of 500 meters long cable section. When measured with a 10MHz sine wave, its value does not exceed 8.5dB (17dB/km); However, its value does not exceed 6.0dB (12dB/km) when measured with 5MHz sine wave .
(3) Transmission speed of coaxial cable: the minimum transmission speed required is 0.77C(C is the speed of light) [9].
(4) Coaxial CABLE DC loop resistance: the sum of the resistance of the central conductor of the cable and the resistance of the shielding layer shall not exceed 10 mM/m (measured at 20℃).
Physical parameters
Coaxial cable is composed of central conductor, insulating material layer, mesh fabric shielding layer and external insulating material layer.
Coaxial cable is flexible enough to support a 254mm(10 in.) bending radius. The central conductor is solid copper wire with a diameter of 2.17mm±0.013mm. The insulation material must meet the electrical parameters of coaxial cable. The shielding layer is composed of a metal strip or sheet that meets the transmission impedance and ECM specifications. The inner diameter of the shielding layer is 6.15mm and the outer diameter is 8.28mm. External isolation materials are generally polyvinyl chloride (such as PVC) or similar materials.
Application:
1. Lan Network System
2. Computer Network Distribution System
3. Testing Equipment and CATV System
| Dimension: |
| Model | 521 | 621 | 721 | 821 | 921 | 942 |
| Item | RG59 | Rg58 | Rg6 | Rg7 | Rg11 | RG59+2C |
Material of inner conductor | CCS | CCS | CCS | CCS | CCS | CCS |
Diameter of inner Conductor(mm) | 0.81±0.02 | 19*0.2±0.01 | 1.00±0.02 | 1.29±0.02 | 1.63±0.02 | 0.81 |
| Material of dielectric | Foam PE | Foam PE | Foam PE | Foam PE | Foam PE | Foam PE |
| Diameter of dielectric(mm) | 3.66±0.15 | 2.95 | 4.57±0.01 | 5.72 | 7.11 | 3.7 |
| Material of shield | ALfoil+AI brading | BC/TC brading | ALfoil+AI brading | ALfoil+AI brading | ALfoil+AI brading | ALfoil+AI brading |
Diameter of 1st outer conductor(mm) | 3.90 | \ | 4.90 | 5.90 | 7.52 | 3.9 |
Diameter of 2nd outer conductor(mm) | 4.12 | \ | 5.00 | \ | 7.80 | 4.3 |
| Material of Jacket | PVC\PE | PVC\PE | PVC\PE | PVC\PE | PVC\PE | PVC\PE |
| Diameter of Jacket | 6.30 | 4.95 | 6.90 | 8.10 | 10.16 | 11.5*6.00mm
|
