Coaxial Cable Rangeful HF400 — BNC Male to PL259 UHF, 50 Ω, 3 m

Rangeful HF400 is a 50 Ω coaxial cable assembly with a BNC male connector on one end and a PL259 (UHF) connector on the other, length 3 m. It is designed for RF and HF signal transmission where stable impedance and reliable connections are required. The cable construction emphasizes flexibility for easy routing and consistent characteristic impedance to minimize reflections and signal loss in short interconnects and equipment-to-antenna links.

Advantages

This 3 m coaxial cable provides a 50 Ω transmission line suitable for amateur radio, test benches and antenna feedlines. The BNC male to PL259 UHF connector combination enables connection between instruments and equipment that use different connector standards without adapters. The flexible HF400 dielectric and shielding design maintain impedance stability over the cable run, helping to reduce return loss and preserve signal integrity in HF and VHF ranges.

Suitable for

• Amateur radio transceivers and antenna connections
• Test equipment, oscilloscopes and RF signal generators requiring 50 Ω interconnects
• Short patch leads between radios, receivers and external tuners
• Temporary or permanent installations where a BNC-to-PL259 link is needed

Key specifications

• Characteristic impedance: 50 Ω
• Connector A: BNC male
• Connector B: PL259 (UHF) male
• Cable length: 3 m
• Frequency range: suitable for HF and VHF signal transmission (typical amateur radio bands)
• Construction: flexible coaxial with shielding to reduce interference

How to use

Connect the BNC male end to the corresponding BNC jack on the transceiver, test instrument or antenna tuner, and screw the PL259 end onto the UHF socket of the radio or antenna feedpoint until secure. Ensure connectors are seated properly and tightened by hand; avoid excessive torque that could damage the connector threads. Route the 3 m cable to avoid sharp bends and sources of strong electromagnetic interference. Inspect connectors before use to ensure contacts are clean and free of corrosion.

Usage recommendations

For best performance, keep cable runs as short as practical, avoid tight bends with radii smaller than the cable diameter, and use proper strain relief at connector ends. Regularly check connector integrity and replace the cable if shielding or dielectric damage is visible. When using for measurement purposes, verify system continuity and matching with an SWR meter or network analyser to confirm low return loss.