Coaxial cable Rangeful HF400-RPSM-NF 3m, full copper, 50 Ω

Coaxial cable Rangeful HF400-RPSM-NF 3m, full copper, 50 Ω is a 3‑metre RF cable engineered for stable signal transmission between radio equipment, antennas and test instruments. The cable uses full copper conductors and a 50 ohm characteristic impedance to minimise insertion loss and preserve waveform integrity over short to medium connection distances. Its RPSM-NF compatible connectors provide secure mating with devices designed for these terminations, making it suitable for lab setups, field checks and broadcast links where connector compatibility and low loss are required.

Advantages

The cable’s full copper centre conductor and copper braid reduce resistive and dielectric losses compared with mixed-metal alternatives, improving return loss and attenuation characteristics. Consistent 50 Ω impedance along the length helps prevent reflections and preserves signal quality across VHF/UHF and other RF bands within the cable’s operating range. The 3 m length offers flexibility for bench work and short runs without excess slack, and the RPSM to NF style connectors ensure repeatable mechanical and electrical contact.

Suitable for

• Connecting radio transceivers to external antennas or antenna tuners
• Test and measurement links between RF signal generators, spectrum analysers and DUTs
• Temporary or permanent connections in broadcast and monitoring setups
• Laboratory benches and field checks where a 3 m cable is convenient

Key specifications

• Length: 3 metres
• Characteristic impedance: 50 Ω
• Conductor material: full copper centre conductor and copper braid
• Connector types: RPSM on one end and NF-style on the other (compatible mating required)
• Typical use: RF signal transmission for VHF/UHF and related bands (within cable frequency limits)

How to use

Ensure both mating connectors on your equipment are compatible with RPSM and NF-style terminations before connecting. Align connectors carefully and tighten to the recommended torque where applicable to avoid damage and ensure good contact. Route the cable to avoid sharp bends and kinks; maintain bend radii greater than the manufacturer’s recommended minimum to prevent changes in impedance. For test and measurement use, connect the cable between signal source and instrument, and verify return loss or insertion loss values if precise calibration is required.

Usage recommendations

Store the cable coiled loosely and avoid compressing the braid or connectors. For outdoor or permanent installations, protect connectors from moisture and corrosion using appropriate sealing or boots. Inspect connectors periodically for wear and replace the cable if the centre conductor or braid shows visible damage or if measured performance degrades.