Coaxial cable Rangeful HF400 SMA male to SMA male 50 Ω flexible 25 m

Rangeful HF400 SMA male to SMA male 50 Ω flexible 25 m is a 25-metre coaxial cable with SMA male connectors at both ends, designed for use in 50-ohm RF systems. The cable offers a flexible build suitable for routing between test equipment, antennas and radio devices where moderate length and SMA terminations are required. The construction prioritizes consistent impedance and low signal loss across typical RF frequency ranges used in amateur radio, testing and measurement setups.

Advantages

The cable combines SMA male terminations with a flexible HF400-type coax core, providing reliable mechanical connection and ease of handling in confined or portable installations. Its 50 Ω characteristic impedance ensures compatibility with standard RF equipment, minimising reflections when terminated correctly. The moderate 25 m length reduces the need for multiple adapters and junctions while the flexible jacket simplifies coiling and deployment.

Suitable for

• Amateur radio antenna feeds and station cabling
• RF test and measurement setups with SMA interfaces
• Signal routing between routers, modems and RF modules with SMA connectors
• Portable radio installations and temporary field setups

Key specifications

• Length: 25 m
• Characteristic impedance: 50 Ω
• Connector type: SMA male to SMA male
• Cable type: flexible HF400-style coaxial
• Typical applications: RF links, antenna connections, test leads

How to use

Connect each SMA male connector to the corresponding SMA female port on your equipment, ensuring correct threading and firm but not excessive tightening to avoid damaging connector threads. Route the cable to minimise sharp bends and avoid kinks; maintain a bend radius consistent with flexible coaxial cable practice to preserve impedance and reduce insertion loss. For test and measurement use, document cable routing and keep the cable as straight as practical between test ports to improve repeatability.

Usage recommendations

For best performance, use the cable within the intended 50 Ω system and avoid mating it with mismatched impedances. Inspect connectors for debris before connection and avoid over-torquing; hand-tighten and, if required, use a calibrated torque wrench to the connector manufacturer's recommended torque. Store the cable coiled without tight loops and protect connectors with caps when not in use.