Coaxial cable Rangeful HF240-SM-PL-0.3 50 Ω, 0.3 m, PL259 UHF (male) to SMA (male)

Rangeful HF240-SM-PL-0.3 is a 0.3 m coaxial cable with 50 Ω impedance, fitted with a PL259 UHF (male) connector on one end and an SMA (male) connector on the other. The short length and 50-ohm characteristic impedance make it suitable for connecting radio transceivers, scanners, test instruments and external antennas or adapters that require a reliable RF link between UHF and SMA interfaces. The cable is intended for low-loss, short-run interconnections where space is limited and a secure screw-on connection is needed.

Advantages

This cable provides a direct, impedance-matched connection between UHF and SMA equipment, minimizing reflections and signal degradation in short runs. The 0.3 m length reduces unwanted cable bulk and keeps insertion loss low compared with longer leads. Screw-type PL259 and threaded SMA male connectors ensure mechanical stability and repeatable RF performance in field and bench applications.

Suitable for

• Amateur radio transceivers and external antenna feeders
• Handheld and mobile scanners with adapter needs
• Laboratory test setups and signal routing between UHF and SMA devices
• Short cable runs inside radio installations and equipment racks

Key specifications

• Characteristic impedance: 50 ohm
• Cable length: 0.3 m
• Connector A: PL259 (UHF) male, screw-on type
• Connector B: SMA male, threaded
• Intended frequency use: RF and VHF/UHF ranges (suitable for typical amateur and commercial radio bands)
• Cable type: coaxial low-loss jumper designed for short interconnects

How to use

Align the PL259 connector with the UHF socket and engage the screw-on coupling until firmly seated; take care not to overtighten. Thread the SMA male connector into the mating SMA female port and tighten by hand or with a mild torque using an appropriate wrench for a secure connection. Use the cable for short interconnections only and avoid sharp bends near the connector terminations. Inspect connectors before use to ensure cleanliness and proper seating to maintain best RF contact.

Usage recommendations

For optimal performance, keep the cable length as short as feasible and avoid kinking or tightly coiling the cable. Use this 50 Ω jumper between compatible UHF and SMA equipment and ensure both devices share the same impedance to prevent mismatch. Store the cable in a dry environment and clean connector contacts with a suitable contact cleaner if contamination is suspected.