Coaxial cable Rangeful HF240 50 Ohm, TNC male to SMA male, 12 m

Rangeful HF240 50 Ohm coaxial cable with TNC male to SMA male connectors, length 12 m, is designed for reliable RF signal transmission between devices with TNC and SMA interfaces. The cable preserves 50 Ω impedance continuity across its length to minimize reflections and maintain signal integrity in test setups, antenna connections, radio equipment and other RF applications that require a fixed-length coaxial link.

Advantages

The construction provides a stable 50 ohm characteristic impedance and secure screw-on TNC and threaded SMA terminations for mechanical reliability and consistent electrical contact. The 12 m length offers extended reach without additional adapters while maintaining controlled impedance to support measured RF performance. The cable is suitable for repeated connections and laboratory or field use where a reliable coaxial link is needed.

Suitable for

• Laboratory and test bench RF measurements
• Antenna feedlines and temporary antenna connections
• Interconnecting radio transceivers and receivers
• Signal routing between equipment with TNC and SMA ports

Key specifications

• Characteristic impedance: 50 Ω
• Connector A: TNC male (threaded screw-on)
• Connector B: SMA male (threaded)
• Cable length: 12 m
• Cable type: coaxial RF cable suitable for general-purpose signal transmission

How to use

Ensure both devices are powered off or in a safe state before connecting the coaxial cable. Align the TNC male connector to the TNC female port and tighten the threaded coupling until hand-tight; do not overtighten. Align the SMA male connector to the SMA female port and carefully thread it until secure. Route the cable to avoid sharp bends, kinks and close proximity to large sources of electrical noise. After connections are secure, restore power and verify signal levels or run the intended RF tests.

Usage recommendations

For best long-term performance, avoid repeated bending near the connector ends, prevent exposure to moisture and corrosive environments, and inspect connectors for wear or contamination before critical measurements. Use appropriate torque for SMA connectors when available to ensure consistent RF performance and reliable repeatability in test setups.