Coaxial adapter cable Rangeful BNC male to PL259 UHF, RG58 50 Ω, 0.3 m

Adapter cable Rangeful BNC male to PL259 UHF on RG58 50 Ω, 0.3 m is a short coaxial jumper designed for connecting radio equipment, antennas, transceivers and test instruments. The cable uses RG58 dielectric and braid construction to maintain 50 ohm characteristic impedance across HF and VHF frequency ranges, providing a compact, flexible link where space is limited and secure threaded UHF connections are required.

Advantages

The cable offers a compact 0.3 m length that reduces signal loss in short runs and helps maintain neat cable routing. With a BNC male connector on one end and a PL259 (UHF) plug on the other, it enables direct mating between devices that use these common radio connectors without additional adapters. The RG58 construction provides standard flexibility and mechanical durability for typical field and bench use while preserving the required 50 Ω impedance for HF/VHF operation.

Suitable for (tasks / use cases)

• Connecting transceivers to antennas or antenna tuners over short distances
• Linking radio test equipment and measurement instruments in the lab
• Temporary or permanent patching in HF/VHF amateur radio setups
• Integrating radio accessories that require BNC-to-PL259 mating

Key specifications

• Cable type: RG58 coaxial
• Characteristic impedance: 50 ohm
• Connector A: BNC male
• Connector B: PL259 (UHF) male
• Length: 0.3 m
• Frequency range: suitable for HF and VHF applications
• Construction: single coaxial core with braided shield

How to use

Connect the BNC male end to the corresponding BNC jack by aligning the bayonet lugs, pushing in and twisting until secure. Screw the PL259 plug onto the UHF socket of the radio or accessory until finger-tight and ensure stable mechanical contact. Keep cable bends gentle with a radius larger than the coax diameter to avoid damage to the dielectric and maintain impedance. For test setups, power down equipment before connecting or disconnecting to avoid accidental transients.

Usage recommendations

For best performance, use this 0.3 m cable for short interconnections where a low-loss, 50 Ω link is required. Avoid sharp kinks and prolonged exposure to harsh outdoor environments unless additional weatherproofing or protective sleeving is applied. Check connector threads and bayonet fittings regularly for secure contact and clean mating surfaces to prevent intermittent connections.