EZ-400-UM-X

EZ-400-UM-X UHF Male Crimp/Captivated Connector for LMR-400 Coaxial Cable

EZ-400-UM-X Connector is a high-performance UHF Male (PL-259) connector specifically engineered for the rapid, reliable termination of LMR-400 and similar flexible low-loss coaxial cable. As a premium component of the revolutionary EZ-Fit series, this connector provides the traditional UHF interface widely used in amateur radio, marine, and legacy RF systems, combined with the extreme low-loss performance of LMR-400 and the convenience of solderless installation.

Key Features & Advantages

• UHF (PL-259) Interface: Features the popular, traditional UHF Male (Plug) interface, essential for amateur radio (Ham), marine, CB radio, and other low-frequency applications.
• LMR-400 Optimized: Precision engineered for LMR-400 coaxial cable, ensuring a robust mechanical connection and the superior electrical performance of this larger, lower-loss cable type.
• EZ-Fit Solderless Technology: Features a cutting-edge spring-finger inner contact that eliminates the need for soldering the center pin, significantly reducing installation time and minimizing field errors associated with poor solder joints.
• High Performance: While the UHF interface is traditionally low-frequency, the modern EZ-Fit design and high-quality construction allow for reliable 50 Ohm performance up to 2.45 GHz (ideal for high-power, low-frequency use).
• No Braid Trim Design: Simplifies cable preparation by eliminating the braid trim step, ensuring a consistent, optimal termination geometry.

EZ-400-UM-X Detailed Technical Specifications

Typical Applications

The EZ-400-UM-X is primarily used in applications that demand the lowest possible signal loss with the traditional UHF interface:

• Amateur (Ham) Radio: Ideal for high-power, long-run feeder cables to connect transceivers and antennas.
• Marine & CB Radio: Providing reliable, durable connections in mobile and fixed communication systems over long distances.
• Legacy VHF/UHF Systems: Maintenance and upgrades for older equipment that require the UHF interface but benefit from LMR-400’s superior loss characteristics.

Installation & Recommended Tooling

The quick EZ-Fit assembly requires precision tools specifically sized for the LMR-400 coaxial cable

• Crimping Tool: The required hex die size (check the datasheet, typically .429″ HEX or Times Microwave 3190-667/CT-400 tool) is mandatory for securing the ferrule.
• Cable Prep Tool: A dedicated LMR-400 strip tool (e.g., CST-400 or 3192-152) is essential for achieving the exact strip dimensions required by the solderless contact.