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Material & Craft: 22.23mm solid corrugated copper outer conductor with CCA inner core
Technical Advantage: Ultra-low attenuation (6.2 dB/100m @900MHz) & 89% velocity
Performance: 16kW peak power handling with >90dB RF shielding
The 7/8" corrugated feeder cable supplied by Zhenjiang Worldpeak Communication Co., Ltd. is an industrial-grade 50 ohm transmission line optimized for extremely low attenuation over long vertical antenna runs. Engineered with a 22.23 mm annular corrugated copper outer conductor, a 19.7 mm closed-cell physical foam PE dielectric, and a 9.0 mm copper-clad aluminum center conductor, this high-performance RF feeder cable achieves an 89% velocity of propagation and peak power handling up to 16 kW. Enclosed in a 28.0 mm UV-resistant black polyethylene jacket, this corrugated copper feeder cable delivers superior RF shielding efficiency exceeding 90 dB for demanding base station and broadcast installations.
In modern telecommunication infrastructure, maintaining signal purity and minimizing decibel loss over long vertical distances is critical. The 7/8" corrugated feeder cable manufactured by Zhenjiang Worldpeak Communication Co., Ltd. is designed to deliver exceptional signal integrity across cellular, broadcast, and private wireless communication networks. As a heavy-duty 50 ohm feeder cable, it connects base station transceivers directly to tower-mounted antennas with minimal attenuation.
Unlike standard flexible coaxial cables that use foil or wire braiding, this specialized coaxial feeder cable features a continuous, solid corrugated copper outer conductor wall. This design offers a solid-tube shielding barrier against external electromagnetic interference while permitting a controlled installation bend radius of 125 mm. Inside the cable, a 19.7 mm physical foam polyethylene dielectric supports the 9.0 mm inner conductor, ensuring a uniform 50 ohm characteristic impedance across demanding frequency bands.
Zhenjiang Worldpeak Communication Co., Ltd. manufactures every batch of base station feeder cable under stringent quality control standards. The outer 28.0 mm black polyethylene jacket shields the cable assembly against extreme UV exposure, temperature variations, and aggressive salt-spray environments, ensuring long-term operational reliability in permanent outdoor deployments.
Ultra-Low Attenuation Performance: Extends signal range across VHF, UHF, cellular, and microwave frequencies with low decibel transmission loss.
Annular Corrugated Copper Outer Conductor: Solid 22.23 mm copper tube provides structural rigidity and superior RF shielding exceeding 90 dB.
High Velocity of Propagation: Advanced 19.7 mm physical foam PE dielectric enables an 89% velocity factor for high-speed signal propagation.
Heavy-Duty Weather Protection: Outer 28.0 mm black PE jacket withstands harsh weather conditions, ozone exposure, and temperature extremes from -40°C to +85°C.
Optimized Center Conductor: Constructed with a 9.0 mm copper-clad aluminum core, balancing high RF skin-effect conductivity with reduced overall cable weight.
Braided flexible coax designs rely on interwoven metallic strands that leave microscopic gaps, making them susceptible to signal leakage and external RF interference. The 7/8" corrugated feeder cable produced by Zhenjiang Worldpeak Communication Co., Ltd. utilizes a continuous solid copper wall. This annular corrugated conductor delivers an impenetrable RF barrier with shielding effectiveness exceeding 90 dB, preventing passive intermodulation (PIM) interference in high-density multi-carrier environments.
In outdoor tower installations, water ingress is a primary cause of standing wave ratio (VSWR) degradation and cable failure. Zhenjiang Worldpeak Communication Co., Ltd. employs closed-cell nitrogen-foamed polyethylene dielectric technology. Because the foam structure contains closed microscopic gas pockets, water cannot migrate along the cable length even if the outer jacket experiences external damage.
| Parameter | Specification | Notes / Operating Conditions |
| Product Type | 7/8" Corrugated Feeder Cable | High-Power 50 Ohm Coaxial Line |
| Inner Conductor | 9.0 mm Copper-Clad Aluminum (CCA) | Skin-Effect RF Conductor |
| Dielectric Material | 19.7 mm Foam Polyethylene (PE) | Closed-Cell Structure |
| Outer Conductor | 22.23 mm Corrugated Copper | Annular Corrugation |
| Outer Jacket | 28.0 mm Black Polyethylene | UV-Resistant PE Jacket |
| Characteristic Impedance | 50 Ohm (±2) | Standard RF Impedance |
| Velocity of Propagation | 89% | Reference Nominal Value |
| Capacitance | 73.5 pF/m | Reference Value |
| DC Loop Resistance | 1.8 Ohm/km | Center + Outer Conductor |
| Shielding Effectiveness | > 90 dB | Solid Copper Tube Outer Shield |
| Peak Power Rating | 16 kW | High Electrical Capacity |
| Voltage Withstand | 4000 V DC | Insulation Test Voltage |
| Min. Installation Bend Radius | 125 mm | Controlled Bending Limit |
| Cable Weight | 0.73 kg/m | Solid Copper Construction |
| Operating Temperature | -40°C to +85°C | Industrial Outdoor Rating |
| Attenuation @ 900 MHz | 6.2 dB / 100m | Low Loss Benchmark |
| Attenuation @ 2.4 GHz | 10.8 dB / 100m | Reference Value |
| Compatible Connectors | 7/16 DIN, 4.3-10, N-Type | Available from Worldpeak |
Braided options like LMR-400 are lighter and easier to bend, but they exhibit significant attenuation (approximately 10.8 dB/100m at 900 MHz). In contrast, the 7/8" corrugated feeder cable from Zhenjiang Worldpeak Communication Co., Ltd. achieves an attenuation of only 6.2 dB/100m at 900 MHz. Furthermore, its 16 kW peak power capacity far exceeds flexible braided alternatives, making it necessary for high-power broadcast and telecom lines.
Compared to smaller size options, the 7/8" corrugated feeder cable offers a larger cross-sectional surface area. This increased conductor area drastically reduces signal loss and thermal resistance, providing superior transmission efficiency for long vertical runs on radio towers.
Base Station Main Feeders: Acts as the primary transmission line connecting ground-level radio transceivers to tower-top antennas in cellular networks.
Broadcast Antenna Systems: Transmits high-power RF signals from FM and VHF transmitters to broadcast antenna arrays over long vertical runs.
In-Building Distributed Antenna Systems (DAS): Functions as a high-capacity main riser cable carrying multi-operator signals across multi-story commercial buildings.
Maritime and Offshore Communications: Serves aboard ships and offshore platforms where the solid corrugated copper feeder cable resists salt-spray corrosion and physical vibration.
Selecting the 7/8" corrugated feeder cable from Zhenjiang Worldpeak Communication Co., Ltd. helps network operators lower total cost of ownership by minimizing signal loss and reducing long-term tower maintenance requirements.
OEM Customization:Zhenjiang Worldpeak Communication Co., Ltd. provides custom outer jacket branding, project-specific color coding, and sequential meter marking for volume orders.
Factory Pre-Terminated Assemblies: To streamline installation times, Zhenjiang Worldpeak Communication Co., Ltd. offers pre-cut jumpers equipped with factory-fitted, low-PIM 7/16 DIN, 4.3-10, or N-Type connectors.
Heavy-Duty Export Packaging: All bulk orders are shipped on reinforced wooden reels engineered to safeguard the corrugated copper construction during international transport.
Q: Why choose a 7/8" corrugated feeder cable over smaller feeder cables?
A: A 7/8" corrugated feeder cable features a larger physical surface area, which significantly lowers attenuation per meter and increases peak power handling up to 16 kW. It is ideal for long vertical tower runs where signal retention is paramount.
Q: What installation precautions are required for this 50 ohm feeder cable?
A: Installers must maintain the 125 mm minimum bend radius to prevent kinking the solid outer copper tube. Due to the cable weight of 0.73 kg/m, vertical runs require dedicated hoisting grips so that structural weight is not supported by the top connector interfaces.
Q: Can Zhenjiang Worldpeak Communication Co., Ltd. supply matching connectors?
A: Yes, Zhenjiang Worldpeak Communication Co., Ltd. provides a full line of compatible 50 ohm RF connectors, including 7/16 DIN, 4.3-10, and N-Type interfaces designed for reliable outdoor sealing and low intermodulation performance.
