Coaxial cable Rangeful BNC male to SMA male RG58/U 50 Ω 7 m

Rangeful coaxial cable BNC male to SMA male RG58/U 50 Ω, 7 m provides a flexible RF connection for devices with BNC and SMA interfaces. Built on RG58/U construction with a 50 ohm characteristic impedance, this 7-meter cable is intended for signal transmission where impedance matching and low-loss short runs are required. The cable assembly combines a BNC male connector on one end and an SMA male connector on the other to link test equipment, radios, antennas and laboratory instruments.

Advantages

This 7 m RG58/U cable offers consistent 50 Ω impedance to minimise reflections and preserve signal integrity across common RF frequencies. Its BNC male to SMA male termination enables direct connection between legacy BNC-equipped instruments and modern SMA devices without adapters. The cable’s flexibility and length support convenient routing in bench setups or field installations while maintaining stable mechanical and electrical performance.

Suitable for

• Connecting test and measurement equipment with BNC and SMA ports
• Linking radio transceivers and antenna feedlines over short distances
• Laboratory setups and signal routing in RF test benches
• Temporary field connections where a 7 m reach is required

Key specifications

• Cable type: RG58/U coaxial
• Characteristic impedance: 50 Ω
• Length: 7 m
• Connector A: BNC male
• Connector B: SMA male
• Typical use: RF signal transmission and test connections

How to use

Align the BNC male connector with the BNC female socket and push to engage; twist the SMA male connector clockwise into the SMA female jack until hand-tight to ensure a secure threaded connection. Avoid over-tightening the SMA connector with tools—hand-tight is normally sufficient for reliable electrical contact. Route the cable to prevent sharp bends and avoid crushing; maintain the minimum bend radius consistent with RG58/U construction to prevent impedance changes and mechanical damage.

Usage recommendations

For best RF performance, use this 50 Ω cable only between devices designed for 50 Ω systems. Limit the cable length to the shortest practical run to reduce insertion loss. Inspect connectors for cleanliness before mating and replace the cable if the jacket, shielding or connectors show visible damage. For applications requiring higher shielding or lower loss over longer distances, consider cables with larger diameter or different dielectric materials.