Coaxial cable Rangeful BNC male to SMA male RG58/U 50 Ω, 20 m

Coaxial cable Rangeful BNC male to SMA male RG58/U 50 Ω, 20 m is a 20-meter RF lead designed for connections that require a 50 ohm impedance. The cable uses RG58/U construction and terminates with a BNC male connector on one end and an SMA male connector on the other, providing compatibility between test equipment, antennas and communication devices that use these common interfaces. The flexible jacket and standard RG58/U attenuation characteristics make it suitable for both bench and field use where reliable RF signal transmission is required.

Advantages

The cable provides impedance-matched 50 Ω transmission between BNC and SMA interfaces, reducing reflections and preserving signal integrity across the run. Its RG58/U build balances flexibility and mechanical stability for easier routing and handling. With factory-fitted male connectors on both ends, the product eliminates the need for adapters in many setups and supports quick, repeatable connections to instruments, antennas and RF modules.

Suitable for

• Connecting test equipment and oscilloscopes to RF adapters and instruments
• Linking antennas, routers or radio modules that use BNC or SMA interfaces
• Temporary field installations and lab setups requiring 20 m cable length
• Measurements and experiments where 50 Ω matching is required

Key specifications

• Cable type: RG58/U coaxial
• Characteristic impedance: 50 ohm
• Connectors: BNC male to SMA male
• Length: 20 m
• Typical use: RF signal transmission and antenna connections
• Jacket: flexible outer sheath for routing and handling

How to use

Inspect connector ends and cable jacket for visible damage before use. Align the BNC male connector with the mating BNC female and push until the bayonet locks; align the SMA male with the SMA female and screw until finger-tight to ensure a stable connection without over-tightening. Route the cable to avoid sharp bends and pinch points; secure with soft straps if fixed routing is needed. When disconnecting, unscrew the SMA connector fully and rotate the BNC bayonet to release the connection.

Usage recommendations

To maintain signal quality, avoid tight bends (minimum bend radius typically several times the cable diameter), keep the cable away from high-power electrical sources and store coiled without kinks. For long-term outdoor deployment consider additional environmental protection for the connectors and cable jacket.