J400 (LMR400, HPF400 Equivalent) Bulk Coaxial Cable (by the foot) – $0.80
High-Performance Ultra-Low-Loss Double-Shielded RF Coaxial Cable
Designed for high-frequency antenna feedlines and long-distance runs up to 6 GHz, this 50-Ohm J400 coaxial cable delivers ultra-low signal attenuation. It features a heavy-gauge copper-clad aluminum inner conductor, a high-efficiency gas-injected foam PE dielectric (85% VP), and dual shielding (bonded aluminum foil tape and tinned copper braid) achieving over 90 dB of shielding effectiveness. Covered in a black, UV-resistant jacket with a 1.0-inch bend radius, it provides high-performance transmission without requiring inline amplifiers.
Specifications
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Specification
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Value
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Component Type
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Bulk Coaxial Cable (Sold by the Foot)
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Cable Type / Series
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J400 (LMR-400 / HPF-400 Grade Equivalent)
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Impedance
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50 Ohm
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Inner Conductor
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0.108 in (2.74 mm) Solid Bare Copper-Clad Aluminum
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Dielectric Material
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Gas-Injected Foam Polyethylene (PE)
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Shielding Type
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Double-Shielded (Tape + Braid)
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Shielding Material
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Bonded Aluminum Foil Tape + Tinned Copper Braid (approx. 88% coverage)
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Outer Jacket Material
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Polyvinyl Chloride (PVC) or Polyethylene (PE), Black
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Overall Outer Diameter
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0.405 inches (10.29 mm)
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Maximum Frequency
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Up to 6 GHz
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Velocity of Propagation
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85% (Nominal - high-efficiency foam core)
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Shielding Effectiveness
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90 dB
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Minimum Bend Radius
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1.0 inch (25.4 mm) for standard installation
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Application
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Long-Run Antenna Feedlines, Base Station Interconnects, Satellite Dish Loops, Wireless Local Loop (WLL)
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