MOOKEERF PL259 KMR400 35ft UHF Coax Cable

MOOKEERF PL259 KMR400 35ft is a low-loss, weather-resistant UHF coaxial cable with PL259 male connectors on both ends, built for reliable RF connections between radios, antennas, and meters.

This 35-foot KMR400 coax assembly combines a high-quality copper-clad aluminum center conductor, dense tinned-copper braid and aluminum foil shield, and reinforced PL259 UHF plugs to deliver consistent signal transfer for mobile and fixed radio setups. Designed as a practical equivalent to LMR400/RG8U, it balances low insertion loss with durable outdoor protection, making it suitable for ham radio stations, CB rigs, VHF marine systems, SWR meters and antenna analyzers.

How much signal loss should I expect over 35 feet?

The MOOKEERF KMR400 35ft cable is engineered to minimize attenuation so your RF system keeps performance across VHF/UHF bands. At around 450 MHz the insertion loss stays low (under approximately 1.11 dB), and the cable maintains a stable SWR when properly installed.

• Measured loss under 1.11 dB at ~450 MHz.
• SWR typically ≤ 1.25 when connectors and antenna are matched.
• Comparable performance to LMR400 and RG8U at the same length.

Are the PL259 connectors durable for outdoor or mobile use?

Yes — each end uses a nickel-plated PL259 connector secured with a clamp-style fitting and extended heat-shrink with adhesive for a sealed transition. The longer 2.2" shrink sleeve and solder-clamp integration reduce the chance of moisture ingress or mechanical separation during handling.

• Clamp-style PL259 for strong mechanical bond.
• 2.2-inch adhesive-lined heat-shrink for moisture protection.
• Nickel-plated shell resists corrosion in marine or outdoor settings.

What construction features make this cable "low loss" and reliable?

The cable's electrical and physical build work together: a copper-clad aluminum center conductor lowers weight while preserving conductivity; a double-layer shield (foil plus tinned braid) boosts shielding effectiveness; and a thick PVC jacket resists weathering. These elements reduce RF leakage and physical wear over time.

• Copper-clad aluminum inner conductor for efficient signal transfer.
• Aluminum foil plus tinned-copper braid for solid RF shielding.
• Robust PVC outer jacket that is water-resistant and abrasion-resistant.

Which radios and accessories is this cable compatible with?

The dual PL259 male ends make this cable a straightforward replacement or extension for equipment using UHF/SO-239 style mating ports. It’s useful for CB radios, HF and VHF amateur rigs, marine VHF transceivers, SWR meters, antenna tuners and surge protectors when a 35-foot run is needed.

• CB and mobile two-way radios with SO-239 connectors.
• Ham radio stations on HF/VHF/UHF bands.
• Marine VHF transceivers, antenna analyzers, and SWR meters.

Who this cable is for: Installers, radio hobbyists, mobile operators and marine users who need a mid-length, low-loss coax run with reliable PL259 terminations. Choose MOOKEERF PL259 KMR400 35ft when you want the balance of reduced attenuation, rugged outdoor protection and straightforward compatibility for antenna systems, SWR checks, and radio-to-antenna hookups without resorting to heavier, bulkier cable types.