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Material & Craft: 31.75mm solid corrugated copper outer conductor with CCA core
Technical Advantage: Ultra-low attenuation (4.4dB/100m @900MHz) & 89% velocity
Performance: High 25kW peak power capacity with >90dB RF shielding
The 1-1/4" corrugated feeder cable manufactured by Zhenjiang Worldpeak Communication Co., Ltd. is a premium 50 ohm feeder cable engineered for high-power transmission line systems. Featuring a solid 31.75 mm corrugated copper outer conductor and a 13.0 mm copper-clad aluminum inner conductor, this RF feeder cable delivers extremely low attenuation and high power handling across wireless networks. Designed specifically for outdoor installations, this corrugated copper feeder cable utilizes physical foam PE insulation to ensure absolute signal stability. Zhenjiang Worldpeak Communication Co., Ltd. provides this low attenuation feeder cable as a robust solution for telecom carriers and broadcast system integrators worldwide.
In modern wireless telecommunication infrastructure, maintaining signal integrity over long distances is critical. The 1-1/4" corrugated feeder cable from Zhenjiang Worldpeak Communication Co., Ltd. serves as the vital backbone between base station transceivers and tower-top antenna systems.
Unlike traditional flexible braided coax lines, a corrugated copper feeder cable relies on a solid copper tube outer shield. This unique annular corrugation structure offers an exceptional solid-tube shielding effect (exceeding 90 dB) while maintaining controlled bend flexibility required for tower installation. Combined with a highly uniform 27.7 mm physical foam PE dielectric, this RF feeder cable achieves an exceptional velocity of propagation (89%), minimizing signal delay and thermal power dissipation in high-frequency applications.
Zhenjiang Worldpeak Communication Co., Ltd. applies strict quality controls throughout the manufacturing process to ensure consistent characteristic impedance (50 ohm) and low standing wave ratio (VSWR). The rugged 38.1 mm black polyethylene (PE) outer jacket provides superior resistance against UV radiation, moisture ingress, and harsh chemical exposure, ensuring a operational service life exceeding 20 years in outdoor environments.
Solid Tube Outer Conductor: High-conductivity annular corrugated copper outer shield provides unmatched RF isolation and ultra-low attenuation.
Advanced Dielectric Design: Closed-cell foam PE dielectric prevents internal moisture migration and guarantees uniform capacitance (73.5 pF/m).
Optimized Bimetallic Center Conductor: Copper-clad aluminum core combines superior skin-effect RF performance with significant cable weight reduction.
All-Weather Outer Protection: Heavy-duty black PE outer jacket protects against UV degradation, extreme temperatures, and mechanical abrasion.
Industry Standard Compatibility: Fully compatible with standard 7/16 DIN, 4.3-10, and HN connector series.
Superior Attenuation Performance: As a primary low attenuation feeder cable, the 1-1/4" corrugated feeder cable exhibits significantly lower signal loss compared to smaller coaxial cables or braided alternatives. At 900 MHz, it achieves an attenuation rate of just 4.4 dB/100m, ensuring maximum power transfer to the antenna array.
High Peak Power Capacity: Capable of handling peak power levels up to 25 kW, this 50 ohm feeder cable provides ample power margin for multi-carrier base stations and high-power broadcast transmitters.
Mechanical Integrity & Shielding: Solid corrugated copper construction offers mechanical crush resistance while maintaining a minimum bend radius of 190 mm, protecting the cable core during complex structural routing on communication towers.
| Parameter | Technical Specification | Engineering Notes |
| Product Type | 1-1/4" corrugated feeder cable | Standard 50 ohm RF feeder cable |
| Impedance | 50 ohm | Nominal impedance tolerance ±1 ohm |
| Inner Conductor | 13.0 mm Copper-Clad Aluminum | High conductivity skin-effect design |
| Dielectric Type | 27.7 mm Physical Foam PE | Closed-cell microcellular foam |
| Outer Conductor | 31.75 mm Corrugated Copper | Solid tube annular corrugated shield |
| Outer Jacket | 38.1 mm Black PE | UV and weather-resistant material |
| Velocity of Propagation | 89% | High-speed propagation factor |
| Capacitance | 73.5 pF/m | Uniform electrical profile |
| DC Resistance | 1.1 ohm/km | Loop resistance value |
| Peak Power Rating | 25 kW | High power transmission capability |
| Minimum Bend Radius | 190 mm | Single bending limit |
| Cable Weight | 1.18 kg/m | Structural calculation reference |
| Operating Temperature | -40°C to +85°C | Full thermal operating range |
| Attenuation @ 900 MHz | 4.4 dB/100m | Reference value at room temperature |
| Attenuation @ 2.4 GHz | 7.7 dB/100m | Reference value at room temperature |
Cellular Base Station Main Feeders: Primary transmission line connecting shelter RF transceivers to remote radio heads (RRH) and main tower antennas.
Broadcast Transmission Lines: Reliable high-power 50 ohm feeder cable runs for FM radio and TV transmitter sites where long vertical runs are required.
In-Building Distributed Antenna Systems (DAS): High-capacity riser backbone cable delivering multi-band signals across multi-story commercial infrastructure.
Maritime & Offshore Communications: Corrosion-resistant RF feeder cable installations for naval vessels and offshore oil platforms operating under harsh salt mist conditions.
Choosing the 1-1/4" corrugated feeder cable from Zhenjiang Worldpeak Communication Co., Ltd. delivers direct commercial and operational advantages:
Reduced Total Cost of Ownership (TCO): Exceptional durability minimizes tower maintenance visits and cable replacement costs over a multi-decade operational lifespan.
Flexible B2B Customization: Zhenjiang Worldpeak Communication Co., Ltd. offers custom spool lengths, specific sequential jacket markings, and pre-terminated factory jumper assemblies to streamline field deployment.
Export-Grade Quality Assurance: Every reel produced by Zhenjiang Worldpeak Communication Co., Ltd. undergoes rigorous electrical and mechanical testing to meet strict global telecom standards.
Q1: How does a 1-1/4" corrugated feeder cable compare to LMR-400 coaxial cable?
A: A 1-1/4" corrugated feeder cable features a solid corrugated copper outer conductor, delivering vastly lower loss over long distances compared to the foil-and-braid shield of LMR-400. While LMR-400 exhibits over 10 dB loss per 100 meters at 900 MHz, this corrugated copper feeder cable maintains a low attenuation rate of only 4.4 dB/100m.
Q2: What connectors are supported by Zhenjiang Worldpeak Communication Co., Ltd. for this feeder size?
A: Zhenjiang Worldpeak Communication Co., Ltd. supplies complete matching connector families for this cable, including 7/16 DIN, 4.3-10, and HN interfaces. We also provide factory-tested custom cable assemblies to simplify site installation.
Q3: Can general electrical contractors install this corrugated copper feeder cable?
A: Due to the solid copper tube construction, installation requires specialized stripping, flaring, and corrugation removal tools. Zhenjiang Worldpeak Communication Co., Ltd. recommends utilizing certified RF installation technicians or ordering pre-cut, factory-terminated assemblies to guarantee optimal performance.
