Coaxial cable Rangeful HF400 BNC male to SMA male, 50 Ω, flexible HF400, 3 m length

Rangeful HF400 coaxial cable with a BNC male connector on one end and an SMA male connector on the other is a 3 m, 50 Ω flexible RF cable designed for connecting equipment with BNC and SMA ports. The HF400 construction emphasises bendability for routing in confined spaces while maintaining stable characteristic impedance and low loss across typical RF frequencies. This cable is intended for signal transmission between antennas, radio transceivers, test instruments and other RF components where a compact, flexible interconnect is required.

Advantages

The cable combines a widely used BNC interface with an SMA termination, enabling easy interoperability between devices that use different connector standards. Its flexible HF400 jacket and inner construction reduce stress on connectors when routed in tight spaces, while the 50 Ω impedance supports consistent signal transfer for RF applications. The 3 m length provides sufficient reach for many bench and field setups without excessive slack.

Suitable for

• Connecting antennas to radio receivers or transceivers with differing connector types
• Linking test equipment such as spectrum analyzers, signal generators, and oscilloscopes to DUTs
• Laboratory and bench setups requiring flexible routing and reliable 50 Ω impedance
• Field installations where a moderate-length, flexible RF lead is needed

Key specifications

• Connector A: BNC male
• Connector B: SMA male
• Characteristic impedance: 50 Ω
• Cable type: flexible HF400 coaxial
• Length: 3 m
• Application: RF signal transmission between BNC and SMA ports

How to use

Ensure both mating connectors are clean and free of debris before making connections. Align the BNC male with the BNC female and push and twist as required to engage the bayonet lock; align the SMA male and gently screw it to the SMA female until hand-tight. Avoid over-tightening the SMA connector with tools; hand-tight is generally sufficient for reliable electrical contact. Route the cable to minimise sharp bends and avoid kinking; use gentle curves consistent with the flexible HF400 construction to maintain impedance integrity.

Usage recommendations

For consistent RF performance, keep the cable length appropriate to the setup, avoid crushing or sharp bending near connectors, and inspect connectors periodically for wear or corrosion. Use proper torque when mating SMA connectors if specified by equipment documentation, and store the cable coiled without tight loops when not in use.