Semi-Finished Coaxial Cable – RG8 CU/64/AL (50Ω)
1.Construction Details
| Component | Specification |
|---|---|
| Inner Conductor | Solid Pure Copper (CU), ~2.70 mm – superior conductivity and stable performance |
| Dielectric | Foamed Polyethylene (PE), ~7.20 mm – low dielectric loss, consistent impedance |
| Shield (Braid) | 64 strands of bare Aluminum (AL) – moderate shielding (~65–70% coverage) |
| Outer Jacket | Not included – for OEM extrusion with PVC, PE, LSZH, etc. |
2. Typical Dimensions (Bare)
| Item | Size |
|---|---|
| Inner Conductor Diameter | ~2.70 mm |
| Dielectric Diameter | ~7.20 mm |
| Braid Outer Diameter | ~8.10 mm |
| Finished Cable OD (after jacket) | ~10.30–10.50 mm |
3. Performance Parameters (Typical)
| Property | Value |
|---|---|
| Characteristic Impedance | 50 ± 3 ohms |
| Capacitance | ~100 pF/m |
| Attenuation @ 100 MHz | ~5.8 dB/100 m |
| Shielding Effectiveness | Moderate (~65–70%) |
| Conductivity | Excellent (due to copper core) |
| Corrosion Resistance | Moderate (bare AL braid) |
| Tensile Strength | Medium (CU core is softer than CCS) |
4. Ideal Use Cases
High-performance indoor RF systems
Short- to mid-distance signal transmission
OEMs requiring high conductivity + moderate EMI protection
RF distribution in office/telecom/commercial buildings
5. Compared to Other RG8 Semi-Finished Cables
| Type | Conductor | Shield Braid | Shielding | Attenuation | Cost |
|---|---|---|---|---|---|
| CU/48/AL | Pure Copper | 48-wire AL | Low | ★★★★☆ (good) | Medium |
| CU/64/AL | Pure Copper | 64-wire AL | Medium | ★★★★☆ (better) | Medium+ |
| CCS/96/CCA | CCS | 96-wire CCA | High | ★★★☆☆ | Medium+ |
| CU/96/CCA | Pure Copper | 96-wire CCA | Very High | ★★★★★ (best) | High |
