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Certifications: Certified by CE, RoHS, FC, and UL, guaranteeing international quality compliance.
Technical Advantages: Features an 84% Velocity of Propagation, >90 dB shielding effectiveness, up to 8 GHz frequency, and low DC resistance (7.9 ohm/km).
Material & Process: Constructed with a 1.80 mm Solid Bare Copper core, 5.00 mm Foam PE dielectric, dual shielding (aluminum tape + tinned copper braid), and a UV-resistant PE jacket.
The LMR300 coaxial cable manufactured by Zhenjiang Worldpeak Communication Co., Ltd. is a flexible, premium low-loss 50 ohm cable engineered specifically for high-performance RF transmission line applications. Featuring a robust 7.50 mm Black PE outer diameter, this LMR300 cable integrates a 1.80 mm Solid Bare Copper (BC) center conductor, a 5.00 mm Foam PE dielectric, a 5.20 mm Aluminum Tape outer conductor, and a 5.70 mm Tinned Copper overall braid. Designed explicitly for antenna feeder cable runs, wireless jumper assemblies, and precise RF signal distribution, the LMR300 coaxial cable guarantees low attenuation and high shielding effectiveness. Zhenjiang Worldpeak Communication Co., Ltd. delivers this low-loss 50 ohm cable for critical wireless infrastructure demanding reliable RF transmission line components.
The LMR300 coaxial cable perfectly bridges the crucial RF feeder cable class gap between lighter jumper cables and heavy-duty trunk lines. As a flagship product from Zhenjiang Worldpeak Communication Co., Ltd., this low-loss 50 ohm cable is meticulously constructed to provide lower attenuation than smaller cables. This efficiency is achieved through its advanced foam dielectric and precise foil-and-braid construction. When specifying an RF transmission line, engineers rely on the bonded foil shield of this LMR300 cable to deliver continuous high-frequency coverage. Furthermore, the tinned copper braid of the LMR300 coaxial cable ensures vital mechanical durability and excellent low-frequency shielding, boasting a typical shielding effectiveness of >90 dB. Zhenjiang Worldpeak Communication Co., Ltd. ensures every LMR300 coaxial cable meets the strictest quality control standards for global B2B deployment.
Zhenjiang Worldpeak Communication Co., Ltd. engineers the LMR300 coaxial cable with advanced material science to ensure superior RF transmission line performance.
Optimal Low-Loss Architecture: The 5.00 mm Foam PE dielectric in the LMR300 coaxial cable supports an impressive 84% velocity of propagation. The lower dielectric constant directly contributes to the dramatically reduced attenuation of this low-loss 50 ohm cable, making it a superior antenna feeder cable.
Superior Shielding Effectiveness: Combining a bonded 5.20 mm Aluminum Tape and a 5.70 mm Tinned Copper overall braid, the LMR300 cable achieves >90 dB shielding effectiveness. This dual-shielding makes the RF transmission line highly resistant to EMI and RFI.
Engineering Core Trade-off Analysis: The larger 1.80 mm Solid BC inner conductor of the LMR300 coaxial cable reduces DC resistance to 7.9 ohm/km, controlling conductor-related attenuation over longer antenna feeder cable runs. While the LMR300 cable has an increased weight (0.077 kg/m) and larger minimum bend radius compared to smaller cables, this trade-off yields superior signal preservation.
Expert Engineering Comparisons:
Vs. LMR240 (6.1 mm OD): The LMR300 coaxial cable provides lower attenuation through its larger dimensions.
Vs. RG213 (10.3 mm OD): This LMR300 cable is preferred when low loss is prioritized and space does not restrict routing.
Vs. LMR400 (10.3 mm OD): While LMR400 reduces total loss, the LMR300 coaxial cable is selected when its smaller form factor provides a distinct RF transmission line routing advantage.
The following specifications highlight the capabilities of the LMR300 coaxial cable provided by Zhenjiang Worldpeak Communication Co., Ltd.
| Parameter | Specification | Engineering Notes |
| Impedance | 50 ohm | Standard for low-loss 50 ohm cable |
| Inner Conductor | 1.80 mm Solid BC | Reduces DC resistance |
| Dielectric | 5.00 mm Foam PE | High velocity of propagation |
| Outer Conductor | 5.20 mm Aluminum Tape | Continuous high-frequency shield |
| Overall Braid | 5.70 mm Tinned Copper | Mechanical durability |
| Outer Jacket | 7.50 mm Black PE | UV and mechanical protection |
| Velocity of Propagation | 84% | Official reference value |
| Capacitance | 78.7 pF/m | Official reference value |
| DC Resistance (Inner/Outer) | 7.9 ohm/km / 5.6 ohm/km | Official reference value |
| Shielding Effectiveness | >90 dB | Vital for RF transmission line integrity |
| Max Frequency | 8 GHz | Official reference value |
| Attenuation at 900 MHz | 14.8 dB/100m | Official reference value |
| Attenuation at 2.4 GHz | 26.9 dB/100m | Official reference value |
| Attenuation at 5.8 GHz | 45.9 dB/100m | Official reference value |
| Certifications | CE, RoHS, FC, UL | Guaranteed by Zhenjiang Worldpeak Communication Co., Ltd. |
As an industry-leading RF transmission line, the LMR300 coaxial cable excels in diverse environments.
Antenna Feeder Runs: The LMR300 cable acts as a primary antenna feeder cable for base stations, preserving signal quality via its 7.50 mm Black PE jacket.
Cellular DAS Infrastructure: This low-loss 50 ohm cable effectively links remote radio units to broadband antennas.
Industrial Wireless Links: The LMR300 coaxial cable provides interconnects for point-to-point bridge equipment operating up to 5.8 GHz.
Zhenjiang Worldpeak Communication Co., Ltd. Installation Notes:
Bend Radius Management: The LMR300 cable installation bend radius is 22.9 mm (91.4 mm for repeated bending). Sharp bends can cause the bonded foil to separate, ruining the RF transmission line.
Foam Dielectric Compression: Over-tightening cable ties will deform the low-loss 50 ohm cable dielectric, creating impedance discontinuities.
Connector Sealing: For outdoor antenna feeder cable installations, connector waterproofing is paramount. Moisture entering improperly sealed connectors will travel along the braid of the LMR300 coaxial cable.
Partnering with Zhenjiang Worldpeak Communication Co., Ltd. for your LMR300 coaxial cable requirements guarantees maximum B2B commercial value. Zhenjiang Worldpeak Communication Co., Ltd. offers extensive OEM customization for this low-loss 50 ohm cable, including custom jacket marking with brand logos for volume orders. Standard spool packaging is available for bulk LMR300 cable orders, while factory-terminated assemblies (N-Type, SMA, TNC, BNC) reduce on-site preparation time. By sourcing this antenna feeder cable directly from Zhenjiang Worldpeak Communication Co., Ltd., system integrators ensure a highly reliable RF transmission line while optimizing their supply chain costs.
Q: What is the difference between the LMR300 coaxial cable and LMR240?
A: The LMR300 coaxial cable uses a larger foam PE dielectric and foil-plus-braid shield compared to LMR240. Designed by Zhenjiang Worldpeak Communication Co., Ltd., this foam-and-foil design in the LMR300 cable provides significantly lower attenuation. However, the low-loss 50 ohm cable requires proper installation care to avoid compression damage at tie points.
Q: Can this LMR300 cable be used for outdoor antenna installations?
A: Yes. Zhenjiang Worldpeak Communication Co., Ltd. manufactures the LMR300 coaxial cable with a durable Black PE jacket specifically for outdoor UV protection. When used as an antenna feeder cable, proper connector sealing is crucial to prevent moisture ingress into the RF transmission line.
Q: What attenuation should I expect from this low-loss 50 ohm cable?
A: Based on Zhenjiang Worldpeak Communication Co., Ltd. reference data, the LMR300 coaxial cable expects roughly 14.8 dB/100m at 900 MHz and 26.9 dB/100m at 2.4 GHz.
