XRDS-RF PL-259 UHF CB Coax Cable 35ft - Low Loss KMR400

In this review the XRDS-RF PL-259 UHF CB coax cable 35ft is evaluated as a practical, purpose-built cable for CB and ham radio operators who need a long, low-loss feedline. The bottom line: this KMR400 cable is worth considering when signal preservation and outdoor durability matter, because it combines a 100% tinned-copper braid shield, low measured attenuation and rugged waterproof UHF connectors in a single 35ft assembly.

Key Features

• Ultra-low loss: The high-density tinned copper braid and full shield minimize signal attenuation, with the manufacturer citing only 0.26 dB loss for a 3ft sample at 500 MHz which scales favorably for longer runs.
• Robust connectors: New nickel-plated UHF PL-259 connectors use a mount clamp design and adhesive-lined heat shrink to create a secure, waterproof connection that resists coming off.
• Outdoor durability: The flexible RF-PVC jacket is UV proof and specified for long-term outdoor exposure, making the cable suitable for rooftop or mast installations.
• Conductor design: The cable uses a copper-clad aluminium center conductor to balance conductivity and weight for a practical feedline choice.
• Sealed ends: Thick adhesive-lined heat shrink up to 2.2 in at each end provides additional sealing and strain relief for exposed connector joints.
• Purpose-built for radio use: Designed by a manufacturer with more than 20 years in CB radio coax production, this assembly is configured specifically for CB, ham radio and related RF test gear.

Who It's For

The XRDS-RF 35ft PL-259 cable is aimed at CB and amateur radio operators, marine AIS and VHF/UHF users who need a long feedline with low loss and reliable outdoor performance. It is particularly useful when replacing a factory lead or running from a roof to a radio where connector waterproofing and braided shielding matter.

Users who need a very flexible, low-bend-radius jumper for cramped indoor routing or who require a different impedance other than 50 ohm should consider alternate cables designed specifically for flexibility or alternate connectors. This is a heavier, weatherproof outdoor assembly rather than a thin, ultra-flexible patch lead.

Pros & Cons

Pros

• Low measured loss characteristics and a full tinned-copper braid for good RF performance.
• Heavy-duty PL-259 mount clamp connectors with nickel plating for corrosion resistance and secure attachment.
• UV-proof RF-PVC jacket and adhesive-lined heat shrink for long outdoor life and sealed ends.

Cons

• Some users report mixed impressions of flexibility; the construction favors durability over extreme pliability, so it may feel stiff in tight runs.
• The cable uses a copper-clad aluminium conductor, which trades some conductivity for lighter weight compared with solid copper.

Specifications

Length	35 ft
Impedance	50 ohm
Cable type	KMR400 coaxial
Connectors	UHF PL-259 male to male, nickel-plated
Shield	High-density tinned copper braid, 100% shield
Conductor	Copper-clad aluminium center conductor
Jacket	UV-proof RF-PVC, outdoor rated

Our Verdict

The XRDS-RF 35ft KMR400 PL-259 cable is a sensible choice for radio users prioritizing low loss, shield integrity and outdoor durability. It is good value for installations where sealed, nickel-plated PL-259 connectors and a full braid matter; those needing maximum flexibility or solid copper conductors should compare alternatives, but for general CB, ham and marine use this cable delivers reliable performance.

Frequently Asked Questions

Is this cable suitable for outdoor mast installations?
Yes. The jacket is UV-proof RF-PVC and the ends use adhesive-lined heat shrink and nickel-plated connectors intended for long-term outdoor use.

What is the impedance and typical loss?
The cable is 50 ohm KMR400; a 3ft sample showed about 0.26 dB loss at 500 MHz per the manufacturer information and customer reports note low loss at VHF/UHF frequencies.

Will the PL-259 connectors stay attached?
The assembly uses a mount clamp style PL-259 and thick adhesive-lined heat shrink to reduce the chance of connector separation compared with simple crimp types.