XRDS KMR 400 UHF Coax Cable – 75ft, PL-259 UHF Male, Low-Loss 50 Ohm CB Cable for Ham Radio, Two-Way Radio, SWR Meter

Overview

The XRDS KMR 400 UHF Coax Cable is a robust, low-loss feed line designed for dependable RF work across home stations and field setups. It features a 0.41 inch copper clad aluminum center conductor, delivering a durable core that helps maintain signal integrity on longer runs and demanding antenna setups. This design favors steadier signal paths without the harsh drop-offs common with smaller coax, making it a practical choice for both hobbyists and professionals who value reliable transmission.

The exterior is built to endure real-world conditions. A UV‑proof RF PVC jacket protects the cable in outdoor environments, resisting sun, moisture, and temperature swings. This jacket is designed for long-term outdoor exposure, helping you keep a single setup in service for years while retaining flexibility for routing through tight spaces or mobile installations.

Secure, weather-ready endings

The cable uses a PL‑259 clamp connector with a nickel‑plated RF housing. This provides a secure, weather‑resistant connection that stays tight during movement or vibration, reducing the chances of loosened links in portable or outdoor configurations.

End connections are further reinforced with an adhesive-lined heat shrink tube that extends the seal to about 2.2 inches. This approach helps protect joints from moisture and debris after assembly, contributing to a more durable, field-ready feed line.

Where to use

• CB radio antennas and general antenna feeds for consistent performance
• HAM radio stations and portable or fixed setups
• SWR meters, tuners, and antenna analyzers for testing and optimization
• VHF/UHF radios and two‑way radio links in vehicles or on‑site deployments
• Marine antennas, walkie talkies, and other RF gear requiring stable connections
• Radio scanners and related RF testing equipment

Technical highlights

• 0.41 inch copper clad aluminum center conductor for stronger signal retention
• Ultra-low loss design compared with RG58 and similar coax types
• 75 ft length enables flexible routing for fixed and portable setups
• UV-proof RF-PVC jacket built for outdoor exposure
• Nickel-plated PL-259 clamp connector for secure connections
• Adhesive-lined heat shrink end seals up to 2.2 inches

In practical use, this combination of a robust core, protective jacket, secure ends, and a reliable connector supports steady signals across a range of environments. While results depend on the overall system, the XRDS KMR 400 is designed to offer dependable performance and straightforward installation for both hobbyists and field operators without guaranteeing outcomes in every scenario.