Coaxial cable Rangeful HF240-SM-PL-3, 3 m, 50 Ω, UHF (PL259) to SMA male

Rangeful HF240-SM-PL-3 is a 3-meter coaxial cable with 50 Ω characteristic impedance, fitted with a UHF (PL259) connector on one end and an SMA male connector on the other. The cable is intended for RF signal transmission between devices that use PL259 and SMA interfaces, providing standardized impedance matching for reduced reflections and stable signal transfer. It is suitable for connecting amateur radio transceivers, antennas, test equipment and other 50 Ω systems where a short, flexible interconnect is required.

Advantages

The HF240-SM-PL-3 offers a fixed 3 m length that balances flexibility and reach while minimizing loss for short runs. Its 50 Ω impedance maintains signal integrity across the connection, and the combination of a PL259 plug and SMA male allows direct mating between common radio and test components without adapters. The cable construction provides sufficient mechanical flexibility for typical bench and field use and ensures reliable electrical contact at both connector interfaces.

Suitable for

• Connecting amateur (ham) transceivers to antennas or antenna tuners
• Linking test instruments (spectrum analyzers, transceivers) to adapters or probes
• Temporary field setups and mobile installations where short runs are needed
• Lab benches and workshop environments for RF experiments and measurements

Key specifications

• Length: 3 meters
• Characteristic impedance: 50 Ω
• Connector A: UHF (PL259)
• Connector B: SMA male
• Application: RF signal transmission between PL259 and SMA interfaces

How to use

Connect the PL259 end to the corresponding UHF female socket by aligning and screwing the connector until hand-tight; ensure the mating surface is clean and free from debris. Attach the SMA male end to the SMA female socket by threading and tightening gently with fingers and, if needed, a torque wrench or small spanner to the manufacturer’s recommended torque for SMA connections. Avoid over-tightening to prevent damage to the dielectric or connector threads. Route the cable with minimal sharp bends and secure it to prevent strain on the connectors.

Usage recommendations

For best RF performance, keep the cable length as short as practical for your setup, avoid tight bends and kinks, and inspect connectors periodically for corrosion or loose fittings. When used in test setups, verify connectors are fully seated to reduce measurement errors; when deploying outdoors or in harsh environments, consider additional environmental protection or a cable with explicit weatherproofing.