XRDS -RF 2ft KMR400 Coax Cable with PL-259 UHF Male

XRDS-RF 2ft KMR400 coax with a PL-259 UHF male is a low-loss, weatherproof 50 ohm jumper for CB, ham and two-way radio connections.

This compact 2-foot KMR400 coax assembly pairs a larger-diameter copper-clad aluminum center conductor with a rugged UV-resistant jacket and nickel-plated PL-259 UHF male connector. It’s engineered to reduce insertion loss and keep a reliable, sealed connection between transceiver, SWR meter, antenna tuner, or antenna feed point. The cable’s thicker conductor and adhesive-lined heat-shrink sleeve aim to improve signal retention and outdoor durability compared with thinner RG-58 style jumpers.

How does this cable reduce signal loss on short runs?

Because KMR400-style coaxuses a larger center conductor and heavier dielectric than RG-58, it has lower attenuation over the same length. For two-foot jumper runs, that means less signal degradation and more consistent SWR readings in the receive and transmit path. The nickel-plated UHF connector also minimizes contact resistance at the mating surface.

• Thicker copper-clad aluminum center conductor for improved conductivity
• 50 ohm impedance suited to most CB, ham and VHF/UHF equipment
• Low-loss construction reduces power dissipation on short links

What makes the PL-259 connector on this cable reliable outdoors?

The PL-259 supplied is nickel-plated and designed for secure threading onto SO-239 sockets. An adhesive-lined heat-shrink tube is included to seal the braid and connector joint after assembly, which helps keep moisture and corrosion out of the critical contact area. The jacket and connector plating together support long-term outdoor exposure without premature degradation.

• Nickel-plated UHF (PL-259) male for corrosion resistance
• Adhesive-lined heat-shrink sleeve provides a water-resistant seal
• UV-proof RF-PVC outer jacket rated for extended outdoor exposure

Which devices and setups is this cable compatible with?

This 2 ft, 50 ohm cable functions as a jumper between common amateur and commercial radio components. Use it to connect CB radios, ham transceivers, SWR meters, antenna tuners, or portable analyzers. It’s also handy for bench testing or short patch connections in mobile installations where space is limited.

• CB and AMATEUR/Ham radio transceivers and mobile units
• SWR meters, antenna tuners, dummy loads, and analyzers
• Portable or mobile two-way radios and marine antenna systems

How durable is the cable for field or vehicle mounting?

The assembly combines a flexible RF-PVC jacket with copper-clad construction to tolerate bending and repeated handling, while a longer heat-shrink sleeve secures the connector joint. The materials selection targets multi-year outdoor exposure and mobile vibration conditions. For permanent outdoor installations, follow best practices for connector sealing and strain relief.

• Flexible jacket resists cracking under repeated bending
• Long adhesive-lined heat shrink adds mechanical and moisture protection
• Constructed for prolonged outdoor and mobile exposure

Who is this for? XRDS-RF’s 2ft KMR400 PL-259 jumper is aimed at radio operators who need a compact, low-loss connector cable for bench work, mobile rigs, or short outdoor feed runs. It’s well suited for ham and CB enthusiasts, installers performing quick swaps or troubleshooting with SWR meters, and anyone seeking a more robust alternative to RG-58 jumpers for short-distance signal-critical connections.