VHF Leaky Feeder Cable Mine Site, RF Coaxial Feeder Cables

Leaky Feeder Cable of Wireless Voice to Undergound Mines, VHF Leaky Feeder Cable

Leaky feeder cable, used for reliable communication in challenging environments, has specifications that include impedance, attenuation, capacitance, and operating temperature, among others. These cables are designed with specific features to allow for signal leakage, enabling communication in areas like tunnels and mines.

• Key Applications:
• Tunnels and Mines, Buildings and Structures, Difficult Signal Areas.
• Key Specifications:
• —Impedance: Typically 50 ohms or 75 ohms.
• —Attenuation: Varies with frequency and cable type, but generally higher than standard coaxial cables. For example, one type has an attenuation of 4.2dB/100m at 160 MHz.
• —Capacitance: Around 76 pF/m.
• —Operating Temperature: Ranges from -40°C to +85°C, depending on the cable type.
• —Conductors: Inner conductor can be solid bare copper or copper-clad aluminum.
• —Insulation: Physical foamed PE or cellular polyethylene.
• —Outer Conductor: Can be corrugated copper tube or copper wires.
• —Jacket: Typically PE or PVC, with options for low smoke or halogen-free versions.

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RF Coaxial Cable 1/4″, 3/8″, 1/2″, 7/8″, 1-1/4″, and 1-5/8″ Feeder Cable for Telecommunication

RF feeder cables, often coaxial cables, are specifically designed for transmitting radio frequency signals with minimal loss, commonly found in base stations, wireless communication, and antenna systems. Key specifications include impedance (typically 50 ohms), attenuation (signal loss over distance), frequency range, and power handling capabilities.

• Key Applications:
  Base stations, In-building distribution, Microwave transmission, Antenna feedersequipment, Computer rooms.
• Standard sizes:
  1/4″, 3/8″, 1/2″, 7/8″, 1-1/4″, 1-5/8″ in wireless communication systems.
  —1/2″, with a copper-clad aluminum inner conductor, physical foam polyethylene dielectric, and an annular copper tube outer conductor.
  —7/8″, with low-loss foam-dielectric.
  —1-5/8″,with a larger size, often used in high-power applications.
  Key Characteristics and Components:
  Inner Conductor:
  Usually made of copper or copper-clad aluminum, providing the signal path.
  Outer Conductor:
  Can be a solid copper or copper-clad aluminum tube, or a corrugated copper tape, providing shielding and a return path for the signal.
  Dielectric Material:
  A foam or solid material separating the inner and outer conductors, influencing signal transmission.
  Jacket:
  The outer protective layer, often made of polyethylene (PE) or similar materials, providing durability and environmental protection.
  Impedance: Typically 50 ohms, but other impedances exist for different applications.
  Attenuation: The signal loss along the cable length, a critical factor for performance.
  Velocity of Propagation: The speed at which the signal travels through the cable, often expressed as a percentage of the speed of light.
• Types of RF Feeder Cables: Coaxial Cables, Corrugated Cables, Superflexible Cables.
  Factors Choosing an RF Feeder Cable:Frequency Range, Attenuation Requirement, Impedance Matching, Environmental Conditions, Flexibility and Bending Radius

• Get a quote by email: supplier@huadongcablegroup.com

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