Pacific Aerials P1059 SO239 Female Joiner Adapter

Pacific Aerials P1059 SO239 UHF Female-to-Female Barrel Joiner

The Pacific Aerials P1059 is a high-grade SO239 female-to-female (UHF Female) coaxial barrel joiner adapter designed for extend-and-splice coaxial cable connections in marine VHF, AIS, HF SSB, and land mobile radio (LMR) communication systems. It provides a direct, low-loss interconnect between two PL259 (UHF Male) terminated coaxial cables, allowing easy cable extension through bulkheads, decks, and cable runs without re-terminating existing lines.

Constructed from heavy nickel-plated brass with a silver/gold-plated internal spring-contact receptacle, the P1059 maintains high contact pressure, structural rigidity, and stable 50 Ω impedance across frequencies up to 300 MHz. Deeply knurled outer threading ensures smooth, positive engagement with standard male PL259 coupling nuts, resisting mechanical loosening caused by continuous hull vibration.

Key Features

• Direct PL259 Interconnect: Enables fast joining of two male PL259 cable ends without requiring solder or cable splicing.

• Corrosion-Resistant Nickel Plating: Heavy nickel-plated brass body protects against saltwater degradation, surface oxidation, and harsh weather.

• Low RF Insertion Loss: High-conductivity center receptacle maintains signal strength across marine VHF (156-162 MHz) and AIS bands.

• Vibration-Proof Threaded Interface: Standard 5/8 in-24 UNEF threads provide a positive, locked mechanical fit with PL259 knurled coupling nuts.

• Solid Brass Construction: Machined brass housing resists cracking or thread stripping under mechanical strain.