Coaxial cable Rangeful HF400 N male to N male 50 Ω, 25 m

Rangeful HF400 N male to N male 50 Ω, 25 m is a shielded coaxial cable assembly designed for reliable RF signal transmission. The cable features N-type male connectors on both ends and a 50 ohm characteristic impedance across the length of 25 metres. It is intended for use where stable impedance matching, low insertion loss and mechanically secure threaded connections are required in HF, VHF and UHF frequency ranges.

Advantages

The construction combines a low-loss dielectric and robust outer shielding to minimise attenuation and maintain signal integrity over longer runs. N male threaded connectors provide secure, vibration-resistant coupling and consistent electrical contact. The cable’s 50 Ω impedance and controlled geometry help reduce reflections and standing waves, supporting accurate measurements and stable links in radio systems and test setups.

Suitable for

• Amateur radio antenna feed lines
• Base station interconnects and RF patching
• Laboratory test and measurement equipment
• HF/VHF/UHF signal routing and temporary installations

Key specifications

• Cable type: shielded coaxial
• Connector type: N male to N male (threaded)
• Characteristic impedance: 50 Ω
• Length: 25 m
• Frequency range: suitable for HF, VHF and UHF bands
• Construction: solid shielding with low-loss dielectric for reduced attenuation

How to use

Connect each N male connector to the corresponding female N-type port on equipment, antennas or test instruments. Ensure threads are hand-tightened and, if needed, finish with a torque wrench to the equipment manufacturer’s recommended torque for N-type connectors to avoid over- or under-tightening. Route the cable to avoid sharp bends; maintain the cable bend radius recommended for HF400-type coax to prevent deformation and maintain impedance integrity. For outdoor runs, secure the cable with appropriate clamps and protect exposed connectors from moisture with weatherproofing materials.

Usage recommendations

For best performance, keep runs as short as practicable for the application, avoid kinks and repeated flexing, and use correct connector torque. When used in measurement setups, allow a brief settling time after reconnection before taking readings to ensure stable contact. For permanent outdoor installations, add UV-resistant protection and connector sealing to prolong service life.