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Certifications: Certified by CE, RoHS, FC, and UL to meet strict global quality standards.
Technical Advantages: Delivers 85% Velocity of Propagation, >90 dB shielding effectiveness, 16.0 kW peak power rating, and ultra-low DC resistance (4.3 ohm/km).
Material & Process: Engineered with a 2.74 mm Solid Bare Copper core, 7.24 mm Foam PE dielectric, dual shielding (bonded aluminum tape + tinned copper braid), and a UV-resistant PE jacket.
The LMR400 coaxial cable manufactured by Zhenjiang Worldpeak Communication Co., Ltd. is a flexible, ultra-low-loss 50 ohm cable engineered specifically for high-demand RF transmission line systems. Featuring a robust 10.29 mm Black PE outer diameter, this LMR400 cable integrates a 2.74 mm Solid Bare Copper (BC) center conductor, a 7.24 mm Foam PE dielectric, a 7.39 mm Aluminum Tape outer conductor, and an 8.13 mm Tinned Copper overall braid. Built for long antenna feeder cable runs, wireless jumper assemblies, and high-frequency RF signal distribution, the LMR400 coaxial cable ensures minimal signal attenuation and maximum reliability. Zhenjiang Worldpeak Communication Co., Ltd. supplies this premium low-loss 50 ohm cable globally for critical wireless communication infrastructures.
The LMR400 coaxial cable serves as the benchmark industry standard, bridging the RF feeder cable spectrum between flexible jumpers and heavy feeder trunk lines. Produced by Zhenjiang Worldpeak Communication Co., Ltd., this low-loss 50 ohm cable delivers exceptional attenuation performance due to its advanced gas-injected foam dielectric and precision dual-shielding architecture. When designing a high-efficiency RF transmission line, engineers specify the LMR400 cable for its continuous, gap-free shield coverage provided by the bonded aluminum tape. Complementing the foil layer, the tinned copper braid of the LMR400 coaxial cable adds robust mechanical strength and superior low-frequency shielding capability, achieving a typical shielding effectiveness exceeding >90 dB. Zhenjiang Worldpeak Communication Co., Ltd. ensures every batch of LMR400 coaxial cable undergoes rigid quality control, offering global system integrators an unbeatable combination of signal integrity, durability, and cost-effectiveness.
Zhenjiang Worldpeak Communication Co., Ltd. builds the LMR400 coaxial cable using advanced RF material engineering to yield outstanding RF transmission line performance across broad frequency spectrums.
Ultra-Low Attenuation Architecture: The 7.24 mm Foam PE dielectric within the LMR400 coaxial cable yields a high velocity of propagation reaching 85%. This reduced dielectric constant directly decreases signal loss, making this low-loss 50 ohm cable an ideal choice for extended antenna feeder cable deployments.
High-Shielding Dual Outer Conductor: By bonding a 7.39 mm Aluminum Tape shield directly to the dielectric and surrounding it with an 8.13 mm Tinned Copper braid, the LMR400 cable provides over >90 dB shielding effectiveness. This ensures your RF transmission line remains protected against strong EMI and RFI interference.
Engineering Core Trade-off Analysis: The substantial 2.74 mm Solid BC center conductor reduces inner DC resistance to approximately 4.3 ohm/km. While the larger 10.29 mm profile increases overall weight (0.119 kg/m) and requires a larger bend radius compared to smaller jumpers, the resulting decrease in attenuation offers a decisive system link budget advantage.
Engineering Benchmark Comparisons:
Vs. RG8 (10.3 mm OD, Solid PE): The LMR400 coaxial cable from Zhenjiang Worldpeak Communication Co., Ltd. achieves lower loss through its foam dielectric and dual foil-and-braid shielding.
Vs. RG213 (10.3 mm OD, Single Braid): The LMR400 cable is selected whenever low attenuation takes priority over traditional single-braid cable designs.
Vs. LMR600 (14.7 mm OD): While LMR600 yields lower attenuation, the LMR400 coaxial cable offers superior routing flexibility and easier handling in tighter enclosure spaces.
The following technical values reflect the engineering performance of the LMR400 coaxial cable offered by Zhenjiang Worldpeak Communication Co., Ltd.
| Parameter | Specification | Engineering Notes |
| Impedance | 50 ohm | Standard for low-loss 50 ohm cable |
| Inner Conductor | 2.74 mm Solid BC | Controls conductor DC loss |
| Dielectric | 7.24 mm Foam PE | Supports 85% velocity of propagation |
| Outer Conductor | 7.39 mm Aluminum Tape | Bonded foil for high-frequency shielding |
| Overall Braid | 8.13 mm Tinned Copper | Enhances low-frequency shielding |
| Outer Jacket | 10.29 mm Black PE | UV-resistant outdoor protection |
| Velocity of Propagation | 85% | Official reference value |
| Capacitance | 78.4 pF/m | Official reference value |
| DC Resistance (Inner/Outer) | 4.3 ohm/km / 3.3 ohm/km | Low conductor loss |
| Shielding Effectiveness | >90 dB | Keeps RF transmission line clean |
| Peak Power Rating | 16.0 kW | High power handling capability |
| Operating Temperature | -40 to +85 °C | Extreme weather resistance |
| Max Frequency | 8 GHz | Official reference value |
| Attenuation at 900 MHz | 10.8 dB/100m | Official reference value |
| Attenuation at 2.4 GHz | 19.7 dB/100m | Official reference value |
| Attenuation at 5.8 GHz | 33.8 dB/100m | Official reference value |
| Certifications | CE, RoHS, FC, UL | Guaranteed by Zhenjiang Worldpeak Communication Co., Ltd. |
As a versatile, low-loss RF transmission line, the LMR400 coaxial cable performs reliably across demanding industrial and commercial applications.
Primary Antenna Feeder Runs: Used widely in base stations, private mobile radio networks, and wireless backhauls where low signal loss over a 10.29 mm PE jacket is essential.
Cellular DAS Infrastructure: Serves as the backbone antenna feeder cable connecting distributed antennas across high-rise buildings and public venues.
Industrial Fixed Wireless: Provides reliable interconnects for point-to-point wireless bridges, SCADA systems, and fixed wireless terminals operating up to 5.8 GHz.
Installation Guidelines from Zhenjiang Worldpeak Communication Co., Ltd.:
Bend Radius Control: Maintain an installation bend radius of at least 25.4 mm (101.6 mm for repeated bending). Bending the LMR400 cable sharply can cause foil separation from the dielectric.
Dielectric Compression Avoidance: Because foam PE is compressible, avoid overtightening cable ties on the LMR400 coaxial cable. Use clamps sized for the 10.29 mm Black PE outer diameter to prevent impedance discontinuities.
Weatherproofing Terminations: Water ingress into an unsealed connector will ruin the low-loss 50 ohm cable braid. Zhenjiang Worldpeak Communication Co., Ltd. recommends cold-shrink boots or self-amalgamating tape on all outdoor joints.
Sourcing your LMR400 coaxial cable directly from Zhenjiang Worldpeak Communication Co., Ltd. guarantees maximum B2B commercial value and technical assurance. Zhenjiang Worldpeak Communication Co., Ltd. provides customized OEM solutions for bulk LMR400 cable buyers, including project-specific jacket markings, custom reel lengths, and branded packaging. Additionally, Zhenjiang Worldpeak Communication Co., Ltd. supplies pre-terminated factory jumper assemblies fitted with premium N-Type, SMA, TNC, or BNC connectors. Integrating pre-tested assemblies built with this low-loss 50 ohm cable significantly speeds up site installation time, reduces labor costs, and eliminates field-termination errors for system integrators.
Q: What is the main structural difference between the LMR400 coaxial cable and RG8 cable?
A: The LMR400 coaxial cable produced by Zhenjiang Worldpeak Communication Co., Ltd. utilizes a gas-injected foam PE dielectric and a dual aluminum-tape-and-braid shield structure, whereas standard RG8 uses solid PE and a single braid. This allows the LMR400 cable to offer dramatically lower attenuation across high frequencies.
Q: Is the LMR400 coaxial cable suitable for long-term outdoor installation?
A: Yes. Zhenjiang Worldpeak Communication Co., Ltd. encapsulates the LMR400 coaxial cable with a high-density, UV-resistant 10.29 mm Black PE jacket designed for harsh outdoor weather. Always ensure proper connector sealing to keep the RF transmission line dry.
Q: What attenuation level can I expect from this low-loss 50 ohm cable at 2.4 GHz?
A: Under standard operating conditions, the LMR400 coaxial cable from Zhenjiang Worldpeak Communication Co., Ltd. exhibits an attenuation of approximately 19.7 dB per 100 meters at 2.4 GHz.
