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This factory-direct BNC Male to BNC Male RF cable assembly is engineered for applications demanding minimal signal attenuation and reliable 50Ω impedance matching. Built with premium LMR-400 low-loss coaxial cable, this jumper significantly outperforms standard RG58 or RG142 cables, making it ideal for medium-range RF signal routing, repeater installations, and test equipment patching.
The standard 50cm length is optimized for benchtop testing and short interconnects, while our direct manufacturing capabilities allow for complete customization of cable lengths and connector plating to meet specific project requirements.
Parameter | Specification |
Impedance | 50 Ohm |
Connector A | BNC Male Plug Bayonet coupling mechanism Brass body, nickel or gold-plated PTFE dielectric |
Connector B | BNC Male Plug Bayonet coupling mechanism Brass body, nickel or gold-plated PTFE dielectric |
Cable Type | LMR-400 (Ultra-low loss, foam PE dielectric) |
Cable Construction | Center: Solid bare copper wire Dielectric: Foam PE Shield: Dual aluminum tape + 95% tinned copper braid Jacket: UV-resistant PE (Black) |
Outer Diameter (OD) | 10.3 mm (0.405 inches) |
Standard Length | 50 cm (Custom lengths from 10 cm to 100+ meters available) |
Insertion Loss | ≤ 0.07 dB @ 1 GHz (per 50cm); ≤ 0.13 dB @ 2.5 GHz (per 50cm) |
VSWR | ≤ 1.20:1 (DC to 3 GHz) |
Power Handling | Up to 1,500W @ 1 GHz (Subject to connector limits) |
Temperature Range | -40°C to +85°C |
Ultra-Low Loss LMR-400 Coaxial Core: LMR-400 features a solid bare copper center conductor and a foam PE dielectric, providing significantly lower signal attenuation compared to traditional solid PE cables. The dual-shielding (aluminum tape plus 95% tinned copper braid) ensures >90 dB shielding effectiveness, protecting the signal from external EMI/RFI interference.
Precision BNC Male Connectors: Both ends feature standard BNC Male plugs with a bayonet coupling mechanism for quick, secure, and repeatable connections. The connectors are machined from high-quality brass and can be specified with either nickel plating for general use or gold plating for enhanced corrosion resistance and optimal conductivity in harsh environments.
Factory-Direct Customization: As a direct manufacturer, we eliminate middlemen to offer competitive wholesale pricing. While this listing features a 50cm standard length, the assembly line supports full customization. Clients can specify exact cable lengths, alternative connector platings, and specialized jacket materials (e.g., LSZH, PVC, or UV-stable PE) tailored to their deployment environment.
Heavy-Duty Strain Relief: Due to the thicker profile of LMR-400, the transition points between the cable and the BNC connectors are reinforced with high-quality heat-shrink tubing or molded strain relief boots. This prevents the heavy cable from fatiguing or breaking at the crimp points during installation and routing.
Industry / Field | Specific Use Case |
Telecommunications | Patch cables for cellular repeaters, bidirectional amplifiers (BDAs), and DAS (Distributed Antenna Systems). |
Test & Measurement | Benchtop interconnects for spectrum analyzers, network analyzers, and signal generators. |
Broadcast & AV | Routing 50Ω RF signals for wireless microphone systems, IFB, and camera link distribution. |
Amateur Radio (Ham) | Low-loss jumper cables for VHF/UHF transceivers, antenna tuners, and SWR meters. |
Industrial IoT & Telemetry | Reliable RF bridging for remote monitoring stations and SCADA radio links. |
Vector Network Analyzer (VNA) Testing: Every 50cm assembly is swept on a calibrated VNA to verify insertion loss and VSWR. Units that do not meet the strict ≤ 1.20:1 VSWR threshold are automatically rejected.
Crimp Tensile Testing: The mechanical bond between the LMR-400 cable and the BNC connector is validated through pull-force testing to ensure the assembly can withstand the physical stress of field routing without connector separation.
Shield Continuity Verification: Each cable undergoes electrical testing to guarantee 360-degree shield continuity between the BNC shells and the dual-layer shielding of the LMR-400 coax, ensuring maximum EMI rejection.
Visual & Dimensional Inspection: Connectors are inspected under magnification to verify proper crimping, absence of solder wicking, and correct pin alignment to prevent damage to mating female ports.
Standard Packaging: Coiled to maintain a safe bend radius and sealed in protective PE bags.
Labeling: Clearly tagged with "BNC(M) to BNC(M) | LMR-400 | 50cm | 50Ω".
Lead Time: Standard 50cm lengths ship within 24 hours. Custom lengths typically require 3–5 business days.
MOQ: 1 piece for standard stock; 50 pieces for custom length runs.
Q1: Why choose LMR-400 over RG58 or RG213 for this jumper?
A: LMR-400 uses a foam PE dielectric and a solid copper center conductor, resulting in significantly lower signal loss at VHF/UHF frequencies compared to RG58. It also offers better shielding than standard RG213, making it the modern industry standard for low-loss RF patch cables.
Q2: Can I order this exact assembly in a different length?
A: Yes. As a factory-direct supplier, we can customize this BNC Male to BNC Male assembly to any length you require. Please contact us with your exact length specifications for a wholesale quote.
Q3: Is the BNC connector suitable for outdoor use?
A: Standard BNC connectors are not fully waterproof. If this cable will be used outdoors, we highly recommend applying self-amalgamating waterproof tape and vinyl electrical tape over both BNC mating points to prevent moisture ingress.
Q4: What is the minimum bend radius for LMR-400?
A: To prevent permanent damage to the foam dielectric and maintain impedance consistency, the minimum bend radius for LMR-400 should be at least 40mm (1.5 inches) for a single bend, and 100mm for repeated bending.
Proper Torque: When mating the BNC Male plugs to female jacks, ensure the bayonet lugs are fully seated. Do not over-tighten, as this can deform the connector body and alter the 50Ω impedance.
Avoid Sharp Angles: Never bend the LMR-400 cable at a sharp 90-degree angle. Use gentle curves when routing the cable through enclosures or cable management trays.
Connector Protection: When storing or shipping, keep the BNC protective caps on to prevent dirt, debris, or physical damage to the center pin and dielectric insulator.
Cable Stripping: If modifying or terminating custom lengths, use precision coaxial stripping tools designed for LMR-400 to avoid nicking the solid copper center conductor or damaging the foam dielectric.
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