Coaxial cable adapter lead Rangeful PL259 to SO239 UHF HF400 flexible 50 Ω 1 m

Rangeful PL259 to SO239 UHF HF400 flexible 50 Ω 1 m is a one-metre coaxial adapter lead designed for HF and VHF radio systems. The cable uses HF400 construction with standard 50 ohm impedance and fitted PL259 (male) to SO239 (female) UHF connectors. It is intended as a short, flexible jumper for connecting transceivers, antenna tuners, antennas and test equipment where a convenient, reliable UHF connection is required.

Advantages

The cable offers a balance of flexibility and electrical stability thanks to HF400 dielectric and shielding, providing consistent 50 Ω impedance along the 1 m length. The PL259 and SO239 connectors provide a standard threaded UHF connection that is widely compatible with amateur and commercial HF/VHF equipment. The flexible construction and one-metre length reduce strain on connector joints and make routing in tight installations easier while maintaining low signal loss suitable for short jumper applications.

Suitable for

• Connecting HF and VHF transceivers to antennas and antenna tuners
• Short jumper between radio equipment and external connectors
• Test setups and temporary installations in workshops or field operations
• Linking SO239-panel sockets to equipment with PL259 plugs

Key specifications

• Cable type: flexible HF400 coaxial
• Impedance: 50 Ω nominal
• Length: 1 m
• Connector A: PL259 (male) UHF
• Connector B: SO239 (female) UHF
• Intended frequency range: HF and VHF bands (typical use)

How to use

Ensure both devices are powered down before making connections. Thread the PL259 plug onto the mating SO239 socket by hand until snug; avoid cross-threading. Do not overtighten — finger tight plus a small quarter-turn with a suitable wrench is sufficient. Route the cable to avoid tight bends or sharp kinks; maintain a gentle bend radius to preserve the coaxial geometry. After connection, power up equipment and verify signal transfer or SWR where applicable.

Usage recommendations

Use this 1 m flexible PL259 to SO239 lead for short runs and test connections rather than long feeder lines. Keep exposed connectors dry and free from corrosion; if used outdoors, apply an appropriate weatherproofing compound or boot at the connector interface. For permanent or long-distance installations consider using low-loss, larger-diameter coaxial cables designed for the specific frequency band.