Product Details of Hardline Seamless 700 Trunk Cable
The Hardline Seamless 700 Trunk Cable is a 75-ohm coaxial cable hardline cable designed for broadband signal transmission across a wide frequency range.Its signal attenuation increases with frequency.
Features
1.Seamless Swaged Construction: The cable features a swaged outer conductor, typically aluminum, ensuring robust mechanical strength and superior shielding integrity. This seamless design minimizes signal leakage and ingress .
2.Center Conductor: Copper-clad aluminum center conductor offers a balance of conductivity and weight savings .
3.Dielectric: Foam polyethylene dielectric provides excellent electrical properties, including low attenuation and high velocity of propagation (88%) .
4.Jacket: Black polyethylene (PE) jacket designed for durability and environmental resistance, suitable for buried applications .
Advantages
1. Electrical Performance
a.Low Attenuation: The cable exhibits low signal loss across a broad frequency range
(5–3000 MHz). For example:
- At 55 MHz: 1.21 dB/100 m
- At 1002 MHz: 5.77 dB/100 m
- At 3000 MHz: 10.76 dB/100 m
This makes it ideal for long-distance signal transmission without significant degradation .
b.High Structural Return Loss: Excellent return loss performance (e.g., ≥30 dB at 5–1002 MHz) ensures minimal signal reflections and superior impedance stability (±2 ohm tolerance) .
c.75 Ohm Impedance: Standard for CATV and broadband applications, ensuring compatibility with existing infrastructure .
2. Environmental Durability
a.Flooded Design: The cable is flooded for underground use, providing enhanced protection against moisture and corrosion. The Migraheal® corrosion protection technology further safeguards the outer conductor .
b.UV-Resistant Jacket: The black PE jacket is designed to withstand harsh environmental conditions, including direct burial and exposure to moisture .
c.Temperature Resilience: Designed to operate reliably across a range of environmental conditions, with specifications based on standard temperatures of 20°C (68°F) .
3. Mechanical Strength
a.Bend Radius: Minimum bend radius of 165.1 mm (6.5 inches) allows for manageable installation in tight spaces without compromising performance .
b.Pulling Tension: Withstands up to 500 lbs of pulling tension, facilitating easier installation in duct networks or direct burial scenarios .
c.Reel Packaging: Supplied in reels of 762 meters (2500 feet), reducing splices and simplifying long-distance deployments.
4. Applications
Ideal for HFC (Hybrid Fiber-Coaxial) networks, trunk and distribution lines, and broadband infrastructure projects requiring high performance and reliability.
Same series of products
Specification of Hardline Seamless 700 Trunk Cable
Hardline Seamless 700 Trunk Cable
Material Specification:
| Items | Material | Diameter (mm) |
| Inner Conductorl | Copper Clad Aluminuml |
4.14±0.03 |
| Dielectricl | Physical Foam polyethylenel |
16.59±0.10 |
| Outer Conductorl | Overlapping Copper Foill |
17.86±0.10 |
| Jacketl | Black PEl |
19.43±0.25 |
Electrical Performance:
| Impedance | 75±2Ω | |
| Capacitance | 50.20 PF/m | |
| Velocity |
88% |
|
| DC Resistance Max@20℃ |
Inner Conductor Outer Conductor |
2.03Ω/km 0.85Ω/km 2.89Ω/km |
| SRL Min / VSWR Max | 5-1002 MHz | 30dB / 1.06 |
| SRL Min / VSWR Max | 1002-1218 MHz | 24dB / 1.13 |
| SRL Min / VSWR Max | 1218-1794 MHz | 20dB / 1.22 |
| SRL Min / VSWR Max | 1794-2250 MHz | 20dB / 1.22 |
| SRL Min / VSWR Max | 1218-1794 MHz | 20dB / 1.22 |
Mechanical Specification:
| Jacket Tensile | ≥10.3MPa |
| Jacket Elongation | ≥400% |
| Min.Bending Radius |
165.10mm |
Environmental Specification:
| Installation Temperature | -40℃~+60℃(PE) |
| Operating Temperature | -55℃~+85℃(PE) |
Attenuation at 20℃ cable temperature:
| Frequency (MHz) | Attenuation Typical (dB/100m) |
| 5 | 0.36 |
| 55 | 1.21 |
| 211 | 2.46 |
| 250 | 2.69 |
| 270 | 2.79 |
| 300 | 2.95 |
| 330 | 3.12 |
| 350 | 3.21 |
| 400 | 3.44 |
| 450 | 3.67 |
| 500 | 3.9 |
| 550 | 4.1 |
| 600 | 4.33 |
| 750 | 4.89 |
| 870 | 5.31 |
| 1002 | 5.77 |
| 1218 | 6.43 |
| 1500 | 7.21 |
| 1794 | 7.98 |
| 1800 | 8 |
| 2000 | 8.5 |
| 2200 | 8.98 |
| 2500 | 9.67 |
| 2700 | 10.11 |
| 3000 | 10.76 |
*The attenuation is typical value, Maximum value shall be 105% of the nominal attenuation value.
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