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LMR240 Cable 50 Ω Braided Cable for Radio Systems

  • Ultra-Low Signal Loss (Attenuation): Thanks to its advanced foam PE dielectric, the cable achieves an 83% velocity of propagation. This significantly minimizes signal degradation, ensuring maximum power delivery to your antennas.

  • Superior RF Shielding: Equipped with a bonded dual aluminum foil and a tinned copper braid with 90% coverage, it provides exceptional immunity to electromagnetic interference (EMI). This heavy shielding is crucial for maintaining clarity in dense radio systems.

  • Rugged Environmental Durability: Encased in a tough Black PE jacket , the cable is designed to withstand harsh weather, UV exposure, and extreme temperatures ranging from -40°C to +80°C. This makes it an ideal, long-lasting backbone for outdoor RF Feeder system and accessories

Our LMR240 cable is a highly versatile, 50 Ω braided cable specifically engineered to deliver low-loss performance for advanced radio systems and cellular communications. Designed with a 1.42mm bare copper inner conductor and robust bonded dual aluminum foil with a 90% coverage tinned copper braid, it guarantees exceptional shielding and signal integrity across wide frequency bands (including 350-3800MHz and 555-6000MHz for 5G readiness).

This LMR240 cable is an essential component for any professional RF Feeder system and accessories, offering the perfect balance of routing flexibility and durability for demanding telecommunications installations. Its rugged black PE jacket ensures reliable operation in extreme environments, supporting an operating temperature range of -40°C to +80°C. To achieve optimal low-PIM performance and seamless network integration, we highly recommend terminating your connections with our precision-engineered N female for LMR240 connectors. Trust Bri Electronics to supply the high-grade braided cable infrastructure your next project requires.

Applications of the LMR240 Cable

As a premium 50 Ω connectivity solution, the LMR240 cable is engineered for high performance across a diverse range of telecommunications infrastructure. Its low-loss characteristics, excellent shielding, and flexible design make this braided cable the industry standard for demanding RF environments.

Key Applications Include:

  • RF Feeder System and Accessories: It serves as the critical, low-attenuation link between antennas and transceiver equipment, ensuring seamless and efficient signal transfer in professional outdoor and indoor installations.

  • Advanced Radio Systems: Widely deployed in modern cellular radio networks, base stations, and two-way communication setups that require reliable, high-frequency data transmission without interference.

  • Distributed Antenna Systems (DAS): With its 19mm minimum bend radius and 90% tinned copper braid coverage, it is perfect for routing clear, continuous signals through tight spaces in complex in-building networks.

  • Public Safety & Wireless Networks: The rugged Black PE jacket provides the weather-resistant durability needed for mission-critical communications, Wi-Fi deployments, and telemetry systems operating in harsh environments.

Technical Specifications

Cable Construction

ComponentMaterialDimensions
Inner Conductor

Bare Copper

1.42 ± 0.02mm

Dielectric

Foam PE

3.81 ± 0.10mm

Outer Conductor

Bonded Dual Al Foil + Tinned Copper

90% Coverage (16*8*0.127*25.8)

Jacket

Black PE

6.15 ± 0.13mm

Electrical Characteristics

  • Impedance: 50 ± 2 Ω

  • Velocity of Propagation: 83%

  • Capacitance: 24.4 Pf/ft

  • Jacket Spark (V.RMS): 5000

  • Return Loss (30 ~ 3000MHz): ≥ 20.8 dB

Mechanical Characteristics

  • Tensile Strength: 36 kg

  • Weight: 50 kg/km

  • Min Bend Radius: 19 mm

  • Storage Temperature Range: -70 ~ +85 °C

  • Installation Temperature Range: -40 ~ +80 °C

  • Operating Temperature Range: -40 ~ +80 °C

Attenuation

Frequency (MHz)Typical (dB/100ft)Max (dB/100ft)

30

1.5

1.7

150

3.1

3.4

450

5.3

5.8

900

7.6

8.4

1500

10.0

11.0

2500

13.4

14.7


Frequently Asked Questions (FAQ)

 

1. Why is the LMR240 cable recommended for modern radio systems?

The LMR240 cable is engineered with a foam PE dielectric and an 83% velocity of propagation, which dramatically reduces signal attenuation compared to standard cables. Its 90% tinned copper braid coverage provides superior RF shielding, making it highly reliable for cellular communications and sensitive radio systems.

2. Can this braided cable withstand outdoor installation for RF Feeder systems?

Yes. This braided cable is manufactured with a highly durable Black PE jacket. It features a broad operating temperature range of -40 to +80 °C and a storage capacity of up to +85 °C, ensuring longevity and stable performance when used in outdoor RF Feeder system and accessories.

3. What is the most reliable connector to use with this cable?

For secure, 50 Ω matched impedance and low-PIM connectivity in your network, we strongly advise terminating your lines with a high-quality N female for LMR240 connector. This ensures minimal signal reflection and maintains the strict ≥ 20.8 dB return loss required for professional installations.

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