Coaxial cable Rangeful HF240T-NMH-SM-12 — SMA (male) to N (male) hex connectors, HF240 double coaxial, 12 m, pure copper

The Rangeful HF240T-NMH-SM-12 is a 12‑metre HF240 double coaxial cable with SMA (male) to N (male) hex connectors and pure copper conductors. It is designed for RF signal transmission where low loss and shielded conductors are required. The cable core and shielding use materials and construction intended to maintain signal integrity over the run, while the hex SMA and N threaded connectors provide secure mechanical and electrical connections for antennas, test instruments and communications equipment.

Advantages

This coaxial assembly combines a low-loss HF240 cable construction with pure copper conductors to deliver consistent RF performance across the cable length. The SMA (male) to N (male) hex connectors provide robust threaded mating and repeatable impedance connections, reducing the chance of intermittent contact. The 12 m length offers extended reach without the need for intermediate adapters, and the double coaxial design improves shielding and reduces interference compared with single-conductor leads.

Suitable for

• Antenna connections for radio and wireless systems
• Test and measurement setups in RF laboratories and field testing
• Communications equipment requiring shielded low-loss links
• Temporary or semi-permanent installations where threaded SMA and N connectors are used

Key specifications

• Cable type: HF240 double coaxial
• Length: 12 m
• Connectors: SMA male (hex) to N male (hex)
• Conductor material: pure copper
• Construction: shielded double coaxial for reduced interference

How to use

Connect the SMA (male) hex connector to the corresponding SMA (female) port and the N (male) hex connector to the matching N (female) port. Ensure threads are engaged gently and tightened to hand-tight plus the manufacturer’s recommended torque for the connectors in your equipment to avoid over-tightening. Route the cable to avoid sharp bends and keep it clear of high-power mains cables or strong RF sources that could introduce interference. Inspect connectors for contamination and damage before use and replace the cable if shielding or conductors appear compromised.

Usage recommendations

For best performance, use the cable within its recommended frequency range for HF240-class coaxial assemblies, avoid repeated flexing near the connector ends, and store coiled without tight loops to maintain cable geometry. When used in measurement setups, verify connector torque and continuity to ensure repeatable results.