Semi-Finished Coaxial Cable –RG11 CU/48/AL
1. Cable Structure (No Outer Jacket)
| Layer | Material | Approximate Diameter |
|---|---|---|
| Inner Conductor | Solid Copper (CU), Ø 1.63 mm | 14 AWG |
| Dielectric | Gas-Injected Foamed Polyethylene (FPE) | ~7.24 mm |
| Shield 1 (Tape) | Bonded Aluminum-Polyester Foil (100%) | — |
| Shield 2 (Braid) | 48 strands Aluminum (AL), ~30–35% coverage | — |
| Outer Jacket | Not included (semi-finished cable) | — |
Outer Diameter (semi-finished core): ~7.8 mm
Finished Diameter (with jacket): ~10.2 mm (depends on jacket type)
2. Electrical & Signal Performance
| Parameter | Typical Value |
|---|---|
| Impedance | 75 ohms |
| Capacitance | ~53 pF/m |
| Velocity of Propagation | ~85% (due to FPE) |
| Attenuation @ 100 MHz | ~5.4–5.6 dB/100m |
| Shielding Effectiveness | Basic to Moderate |
| DC Resistance (inner) | Very Low (due to solid copper) |
3. Key Features
Excellent Signal Quality: Solid copper conductor minimizes signal loss, especially over long runs
Economical Shielding: 48-wire AL braid offers sufficient protection in medium to low EMI environments
Customizable Jacket: Allows flexibility to apply PE (UV/outdoor), PVC (indoor), LSZH (fire-rated), or dual-layer jackets
OEM-Friendly: Perfect for companies producing region-specific or customized finished cable lines
4. Application Scenarios
CATV trunk and distribution lines
Satellite signal and broadband backbones
OEM production and private-label manufacturing
Projects needing good electrical performance at competitive pricing
5. Limitations
Lower shielding performance than 64- or 96-wire braid constructions
Aluminum braid is less durable than CCA or copper braid under mechanical stress
Must be jacketed before installation in the field
Comparison Table
| Variant | Conductor | Braid Shield | Shield Coverage | Attenuation @100 MHz | EMI Shielding | Cost Efficiency |
|---|---|---|---|---|---|---|
| CU/48/AL | Solid Copper | AL x 48 | ~30–35% | ~5.4–5.6 dB/100m | Moderate | 💲💲 |
| CU/64/AL | Solid Copper | AL x 64 | ~40–45% | ~5.0 dB/100m | Good | 💲💲💲 |
| CCS/48/AL | CCS | AL x 48 | ~30–35% | ~6.0 dB/100m | Basic | 💲 Lowest |
| CU/48/CCA | Solid Copper | CCA x 48 | ~30–35% | ~5.5 dB/100m | Moderate | 💲💲 |
