XRDS -RF KMR400 RF Coaxial Cable 50 Ohm Low Loss 100FT - Reliable Run

In this review of the XRDS -RF KMR400 RF coaxial cable, the bottom line is simple: it is a practical, no-frills 100ft bulk cable for installers and hobbyists who need a low-loss 50 Ohm run without pre-attached connectors. The reviewer found the cable well suited to long runs where minimizing signal loss matters, and appreciated that the construction matches expectations for an LMR400-equivalent product. The review highlights real-world handling, build quality, and where the cable fits into antenna, radio and RF patching projects.

Key Features

• Ultra low loss: The KMR400 construction is designed to keep signal attenuation minimal over long 100ft runs for clearer transmission.
• 100ft bulk length: Supplied as a continuous 100ft coil that can be cut to length, which simplifies custom installations and reduces connector count.
• Copper clad aluminum conductor: The inner conductor balances conductivity and weight to deliver good performance while keeping costs down.
• Durable PVC jacket: A flexible, water-resistant outer jacket protects the cable for outdoor or rough use without brittle cracking.
• 50 Ohm compatibility: Intended for 50 Ohm systems and fits standard connector types when terminated, including N, SMA, UHF and BNC.

Who It's For

This cable is aimed at ham radio operators, antenna installers, and AV technicians who need a long, low-loss 50 Ohm feed and prefer to terminate their own connectors. Its 100ft length and LMR400-equivalent construction make it a good match for rooftop antennas, base stations and longer coax runs in larger properties.

Those who should look elsewhere include users who want factory-fitted connectors or a very supple cable for repeated flexing; several customers noted the cable can feel stiff, so it may be less convenient for tight bends or portable rigs that require frequent handling.

Pros & Cons

Pros

• Low signal loss for long runs, preserving transmit and receive performance.
• Solid build with a water-resistant PVC jacket suited for outdoor use.
• Good value for a 100ft bulk length, allowing custom cut-and-terminate installations.

Cons

• Stiffer than some thinner coax options, which can complicate tight routing and handling.

Specifications

Our Verdict

The XRDS -RF KMR400 100ft coax is a sensible, cost-effective choice for anyone needing a long 50 Ohm feed with low loss and outdoor durability. Installers who will terminate connectors themselves get the most value, while those needing extreme flexibility or pre-terminated cables should consider alternative options.

Frequently Asked Questions

Can I terminate this cable with standard connectors?
Yes. It is designed for 50 Ohm systems and works with standard connectors such as N, SMA, UHF and BNC when properly prepared and crimped or soldered.

Is the cable suitable for outdoor use?
The outer PVC jacket is flexible and water-resistant, making the cable suitable for outdoor runs when protected from direct UV and sharp edges.

Will I see significant signal loss over 100ft?
As an LMR400-equivalent, this KMR400 cable offers low loss for 100ft runs and should preserve signal quality for most HF/VHF/UHF installations.