Coaxial cable Rangeful BNC male to SMA male RG58/U 50 Ω, 12 m

Rangeful coaxial cable BNC male to SMA male RG58/U 50 Ω, 12 m is a 12-metre low-loss RF cable assembled on RG58/U dielectric designed to provide a 50 ohm impedance match between devices fitted with BNC and SMA male connectors. The cable is intended for radio frequency signal transmission, antenna feeds, test and measurement setups, and amateur radio installations where a flexible, longer-reach connection is required. Construction with standard RG58/U geometry maintains characteristic impedance and supports common RF applications across VHF and UHF bands.

Advantages

This 12 m Rangeful cable offers reliable impedance matching and consistent RF performance over its length. The BNC male and SMA male connectors allow direct mating with many transceivers, antennas, and laboratory instruments without adapter assemblies. RG58/U construction provides a balance of flexibility and mechanical durability for routing in confined spaces while preserving electrical characteristics required for 50 Ω systems. The assembled cable reduces insertion loss compared with improvised connections and simplifies setup and teardown in field or bench environments.

Suitable for

• Connecting radio transceivers and external antennas
• Linking test equipment such as spectrum analyzers and signal generators
• Amateur radio station wiring and temporary field installations
• Laboratory and educational RF experiments requiring 50 Ω cabling

Key specifications

• Cable type: RG58/U coaxial
• Impedance: 50 Ω nominal
• Connector A: BNC male
• Connector B: SMA male
• Length: 12 m
• Typical use: RF signal transmission, antenna connection, test setups

How to use

Before connection, inspect both connectors and cable for visible damage and ensure connectors are clean. Align the BNC male with the BNC female jack and engage the bayonet until secure. For the SMA male, screw the connector to the SMA female port by hand until finger-tight; do not overtighten with tools to avoid damaging the precision threaded interface. Route the cable to avoid sharp bends, kinks, or stress at the connector junctions. When used with sensitive test equipment or antennas, confirm expected signal levels and return loss with appropriate measurement tools.

Usage recommendations

Use the cable within its mechanical and frequency handling limits: avoid tight bend radii (maintain gentle curves), protect connectors from moisture and impact, and avoid using excessive torque on SMA threads. For critical RF measurements, verify connection quality and consider short cable runs or calibrated cables to minimize loss and reflections.