Coaxial cable Rangeful HF400 BNC male to SMA male 50 Ω, 25 m

Rangeful HF400 coaxial cable with a BNC male connector on one end and an SMA male connector on the other provides a 25 m fixed-length, 50 Ω connection for RF signal transmission. The cable is intended for applications requiring a reliable BNC-to-SMA link between test instruments, antennas and radio-frequency assemblies, delivering consistent impedance matching and low reflection for measurement and installation tasks.

Advantages

The cable offers a stable 50 Ω impedance across its length to minimise signal loss and mismatch. Durable connectors ensure repeatable mechanical and electrical contact when mated with compatible BNC and SMA ports. The 25 m length enables flexible placement of equipment without additional adapters or extensions. The construction reduces reflections and supports straightforward integration into test setups, lab benches and fixed installations.

Suitable for

• Connecting RF test equipment to antennas or devices with differing connector types
• Laboratory measurement rigs and bench testing where a fixed-length BNC-to-SMA lead is needed
• Radio-frequency assemblies and installation points requiring a 50 Ω transmission line
• Temporary or semi-permanent links in communications or broadcasting setups

Key specifications

• Characteristic impedance: 50 Ω
• Connector types: BNC male to SMA male
• Length: 25 m
• Cable type: coaxial RF cable suited for general-purpose signal transmission
• Typical use: low-reflection RF interconnection for test, measurement and installation

How to use

Inspect both connectors and mating ports for cleanliness and visible damage before connecting. Align the BNC male with the BNC female receptacle and engage the bayonet coupling until it locks; align the SMA male and carefully screw it into the SMA female connector until finger-tight, avoiding over-torquing. Route the cable to avoid sharp bends and mechanical stress, and secure it with cable ties or clamps at intervals to prevent movement. After installation, verify continuity and signal integrity with appropriate test equipment to confirm acceptable insertion loss and return loss for your setup.

Usage recommendations

For reliable long-term performance, avoid tight bends with radii smaller than recommended for HF400-style coaxial cables, keep the cable away from strong RF interferers and moisture, and perform periodic inspections of connector condition. When repeated matings are expected, consider using torque wrenches for SMA connections to maintain consistent contact force and minimize wear.