Semi-Finished Coaxial Cable RG7 — CU/64/CCA
1. Cable Structure – Technical Specifications
| Component | Specification |
|---|---|
| Inner Conductor： | Solid bare copper (CU), Ø ≈ 1.13 – 1.20 mm |
| Dielectric Insulation： | Gas-injected or solid foamed polyethylene (FPE), Ø ≈ 5.0 – 5.3 mm |
| First Shield： | Aluminum-polyester foil, 100% bonded to dielectric |
| Second Shield： | 64-wire braided shield, made of CCA (Copper-Clad Aluminum) (~80–85%) |
| Outer Jacket： | Not included – for downstream extrusion (PVC, LSZH, or PE) |
Optional: Drain wire, ripcord, or water-blocking layer can be added during final processing.
2. Typical Electrical Performance (@100 MHz)
| Parameter | Typical Value |
|---|---|
| Impedance： | 75 ± 3 ohms |
| Capacitance： | ~53 – 55 pF/m |
| Velocity of Propagation： | ≥ 85% |
| Attenuation： | ≤ 8.0 dB/100m |
| Return Loss： | ≥ 20 dB |
| Shielding Effectiveness： | ≥ 40 – 50 dB |
| DC Resistance (Inner Conductor) ： | ≤ 21 ohms/km |
3. Key Advantages
1. Pure Copper Core – Superior Signal Transmission
The solid copper conductor ensures low attenuation, low resistance, and stable electrical performance over long distances
Ideal for RF signals, satellite links, and HD analog video
2. 64-Wire CCA Braid – Enhanced EMI Protection at Lower Cost
Offers ~80–85% optical shielding coverage
CCA braid provides a balance between performance and material savings compared to copper braid
More robust than 48-wire alternatives, suitable for mid- to high-interference environments
3. OEM-Friendly Processing and Customization
Suitable for extrusion with:
PVC: indoor use
LSZH: CPR-compliant fire-safe installations (Dca, Cca)
PE: outdoor or direct burial use
4. Versatile for Large Infrastructure Projects
Recommended for hotels, commercial buildings, resorts, or campuses requiring high-capacity coaxial networks
Supports mass production with reliable consistency
4. Packaging & Supply Format
| Item | Specification |
|---|---|
| Core Diameter： | ~7.5 – 8.0 mm (without jacket) |
| Standard Reel Lengths： | 500m / 1,000m wooden drums |
| Packaging： | PE-wrapped wooden drums or palletized coils |
| Print Marking： | None – ready for post-jacketing branding |
| MOQ： | 3,000 – 5,000 meters per spec |
5. Application Scenarios
Final production of RG7 coaxial cables for:
HD CCTV transmission (DVR/NVR systems)
Satellite TV and MATV systems
Broadband RF signal backbone
Installed in:
Commercial and residential buildings
Large-scale resort projects (e.g., Red Sea infrastructure)
Outdoor ducts or aerial routes with suitable jacket
6. Customization Options
Foamed dielectric density (low, medium, high)
Braid pitch (tight/loose) and CCA grade
Messenger wire (for aerial support)
CPR-compliant jacket options: PVC, LSZH, PE
With optional drain wire for enhanced grounding
Summary
| Feature | RG7 CU/64/CCA |
|---|---|
| Inner Conductor： | Solid bare copper (CU) |
| Braid Shield ： | 64-wire CCA braid |
| Shield Coverage ： | ~80–85% |
| EMI Protection ： | Stronger than 48-wire, lower than 96-wire |
| Cost Efficiency： | Excellent performance-to-cost ratio |
| Ideal Applications： | CCTV, satellite, CATV, commercial RF links |
Differences between RG7 CU/48/CCA, RG7 CU/64/CCA and CU/96/CCA
| Feature | RG7 CU/48/CCA | RG7 CU/64/CCA | RG7 CU/96/CCA |
|---|---|---|---|
| Inner Conductor | Solid pure copper (CU) | Solid pure copper (CU) | Solid pure copper (CU) |
| Shield Type | 48 wires, braided CCA | 64 wires, braided CCA | 96 wires, braided CCA |
| Braid Coverage (approx.) | ~70–75% | ~80–85% | 95–98% (nearly full coverage) |
| Shielding Effectiveness (EMI) | Basic | Good | Excellent |
| Mechanical Strength | Moderate | Stronger | Very strong |
| Flexibility | More flexible | Moderate | Slightly stiffer due to dense braid |
| Signal Leakage | Acceptable | Lower leakage | Minimal leakage |
| Attenuation | Higher (weaker shielding) | Lower | Lowest (best signal retention) |
| Weight | Lightest | Moderate | Heaviest |
| Cost | Lowest | Medium | Highest |
Use Case Recommendations
| Application Environment | Recommended Version |
|---|---|
| Short-distance CCTV or indoor wiring | CU/48/CCA |
| Medium-range satellite or CATV installations | CU/64/CCA |
| Long-distance trunk lines, high-interference zones (e.g. near power lines or industrial equipment) | CU/96/CCA |
| High-end broadcast, data centers, or mission-critical networks | CU/96/CCA (best shielding) |
Summary
CU/48/CCA = Economical, flexible, suitable for standard applications.
CU/64/CCA = Balanced performance and cost; suitable for most outdoor or mid-range coax needs.
CU/96/CCA = Premium-grade; used where maximum shielding and signal integrity are critical.
