The CUHF10M PL-259 Coax Plug is a precision-engineered 50 Ω UHF male connector designed specifically for use with 10.3 mm coaxial cables, including the I0JXX Flexy 10 and Messi & Paoloni Ultraflex 10.

Built for professional-grade RF performance, the CUHF10M ensures low insertion loss, tight mechanical fit, and excellent impedance consistency across the HF, VHF, and UHF bands. Its robust nickel-plated brass body, gold-plated centre pin, and PTFE dielectric guarantee superior conductivity, heat resistance, and long-term reliability even under high-power operation.

Ideal for amateur-radio base stations, SDR transceivers, linear amplifiers, and antenna feedlines, this connector provides a secure termination for large-diameter 10.3 mm cables such as Flexy 10 and Ultraflex 10, delivering dependable performance for years of service.

Key Features

• Premium PL-259 (UHF male) connector for 10.3 mm 50 Ω coax

• Compatible with:

  • I0JXX Flexy 10 Coaxial Cable

  • Messi & Paoloni Ultraflex 10 Coaxial Cable

• Frequency range: DC – 500 MHz (HF/VHF/UHF)

• Impedance: 50 Ω

• Nickel-plated brass shell – corrosion-resistant and durable

• Gold-plated centre pin – maximum signal conductivity

• PTFE (Teflon) dielectric – stable, high-temperature insulation

• Solder termination for secure, professional assembly

• Precision 5/8-24 thread – fits all standard SO-239 sockets

• Perfect for HF amplifiers, base transceivers, SDR systems, and test cables

Technical Specifications