SO-239 UHF Female Jack to TNC Female Jack RF Adapter Connector

📋 Overview

This SO-239 UHF female to TNC female RF adapter lets you connect a PL-259 UHF male plug to a TNC male plug or cable end. It's a straight barrel-style adapter with a female jack on both ends, so it joins two plugs that would otherwise never mate.

It has a nickel-plated brass body, a teflon (PTFE) insulator and gold-plated copper center contacts. It's a handy fit for SDR, HAM, GMRS and commercial  radio setups, antenna jumpers and 50 Ohm coax runs.

⭐ Key Features & Benefits

• Two Female Jacks — SO-239 (UHF female) on one end and TNC female on the other, so it connects a PL-259 male plug to a TNC male plug
• Nickel-Plated Brass Body — Tough, corrosion-resistant housing that holds up to repeated connecting and disconnecting
• Gold-Plated Copper Center Contacts — Gold plating resists oxidation and helps keep the signal connection clean and reliable
• Teflon Insulator — Rigid, stable dielectric that holds the center contact in position in both connectors
• 50 Ohm Impedance — Matches standard 50 Ohm coax cable and radio equipment
• Threaded Connections — Both ends screw together for a secure fit that won't pop off, unlike push-on or bayonet styles

📊 Specifications

📦 What's in the Box

• 1× SO-239 UHF Female Jack to TNC Female Jack RF Adapter
• 📝 Note: The product photos may show two adapters for illustration purposes. One piece (1x) is included in the package.

📝 Note: Coax cables, plugs and radios are not included. This adapter has a female jack on both ends, so check that your two connectors are a PL-259 (UHF) male plug and a TNC male plug.

🔌 Compatible With

• PL-259 UHF male plugs, including common SDR and HAM coax cable ends
• TNC male plugs on antennas, radios, jumpers and coax cables
• 50 Ohm coax cable and RF systems
• Equipment with a TNC male connector that needs to connect to UHF (PL-259) cabling

🎯 Common Applications

• SDR & HAM Radio — Connect a PL-259 terminated coax run to a radio or antenna that uses TNC
• Antenna Systems — Mix and match antennas, jumpers and feedlines with different connector types
• Communication Systems — Bridge UHF and TNC connectors in two-way radio and other RF setups
• Audio & Video Transmission — Join coax cables that end in different connector types
• Security & Data Signal Transmission — Adapt cabling for equipment that uses TNC connectors

🚀 Getting Started

Using the adapter takes about a minute and needs no tools:

1. Confirm that your cable ends are a PL-259 (UHF) male plug and a TNC male plug.
2. Thread the PL-259 plug onto the SO-239 end of the adapter until it is snug.
3. Thread the TNC male plug onto the TNC end of the adapter.
4. Tighten both connections by hand. Don't use pliers on the knurled coupling nuts, which can damage the plating and threads.

💡 Tip: TNC and BNC connectors look similar and are both 50 Ohm, but TNC uses a threaded coupling and BNC uses a quarter-turn bayonet lock. If your plug twists on and locks with a quarter turn, you need a BNC adapter instead.

Sold and supported by Envistia Mall. Ships from the USA. The manufacturer and Envistia LLC (dba Envistia Mall) are not responsible for any damages or losses resulting from the use of this product. Always follow proper electrical and RF safety practices, and never transmit into an unterminated or damaged antenna system. Specifications are based on manufacturer data and are subject to change without notice.