Coaxial cable Rangeful RP-SMA male to RP-SMA male HF400 15 m, full copper, 50 Ω

Rangeful HF400 coaxial cable, 15 meters long, with RP-SMA male connectors on both ends is intended for RF signal transmission between devices that use RP-SMA ports. The cable features a full copper centre conductor and 50 Ω characteristic impedance, providing a balance of flexibility and electrical performance for longer RF connections. Its construction is designed to reduce insertion loss over the 15 m length while maintaining a secure threaded RP-SMA mechanical interface.

Advantages

This HF400 cable offers a continuous full-copper conductor for consistent conductivity and predictable attenuation across typical radio frequencies. The 50 Ω impedance matches standard RF equipment, reducing reflections when paired with compatible devices. RP-SMA male connectors at both ends deliver a reliable threaded connection that resists unintended disconnection and ensures correct polarity for RP-SMA systems. The 15 m length enables extended placement of antennas, routers or radio modules without relying on additional adapters or repeated connector joins.

Suitable for

• Connecting external antennas to routers, access points or wireless gateways with RP-SMA ports
• Creating long RF feedlines for amateur radio or short-range professional radio setups
• Extending antenna placement for improved signal reception in buildings or outdoor locations
• Linking test equipment and devices in RF bench setups where RP-SMA interfaces are used

Key specifications

• Cable type: HF400 coaxial
• Length: 15 m
• Conductor material: full copper centre conductor
• Impedance: 50 Ω
• Connector type: RP-SMA male — both ends
• Shielding: multi-layer braid and foil (typical for HF400 construction)
• Flexibility: suitable for indoor routing and moderate outdoor installations

How to use

Prepare the installation by powering off equipment and ensuring connectors are clean and undamaged. Align the RP-SMA male connectors with the device RP-SMA female ports and gently screw each connector clockwise by hand until finger-tight; avoid over-tightening with tools to prevent connector damage. Route the 15 m HF400 cable to minimize sharp bends and avoid tight loops; maintain bend radii consistent with RF coax practice to limit deformation and signal degradation. After connections are made, power on the equipment and verify signal levels or link stability with the device diagnostics or a spectrum analyzer if required.

Usage recommendations

For best results, match the cable impedance with connected equipment, avoid continuous exposure to harsh weather unless additional weatherproofing is applied to connectors, and secure the cable along its run to prevent strain on connectors. If used outdoors, protect connector joints with suitable sealing tape or weatherproof boots to maintain long-term performance.