LL-400 Low Loss Coax Cable with 10AWG Stranded Center Conductor

High-Performance Low Loss Coax for Everyday Use

Upgrade your radio, antenna, or communication system with LL-400 Low Loss Coax Cable. This cable is an LMR-400 equivalent that meets or exceeds the original specs—delivering excellent performance for everything from HF all the way up to multi-gigahertz frequencies. With its robust 10AWG stranded copper center conductor, the LL-400 coax offers reliable connectivity and outstanding signal quality for both indoor and outdoor installations.

Key Features and Everyday Benefits

• Low loss 50 Ohm coaxial cable helps you get clearer signals, less noise, and stronger connections over long cables.
• Direct burial rated: Made for outdoor use, this coaxial cable can be buried directly in the ground – no conduit needed.
• Built for durability: Features a foamed polyethylene dielectric, 10AWG 19-strand copper conductor, tough tinned copper braid, and aluminum foil shielding.
• Easy to bend and install, yet rugged enough for challenging weather and UV exposure.
• Perfect for use with CB, ham radio, WiFi antennas, scanner systems, and many more applications.
• Proudly Made in the USA.

LL-400 Technical Details

LL-400 is a perfect upgrade if you’re replacing old RG-8 sized cable or looking for LMR-400 equivalent performance in a flexible, long-lasting package.

• Type: RG 8/U, Low Loss 400 Type
• Center Conductor: 10 AWG, 19-strand Bare Copper
• Dielectric: Foamed Polyethylene (GIFPE)
• Braid Shield: Aluminum Foil + 95% Tinned Copper
• Jacket (Nom. O.D.): Type 3A PE, 0.405 inches
• Impedance: 50 Ohms
• Made in the USA – Direct Burial Rated

Performance Ratings

• Attenuation (dB/100ft):
  • 50 MHz: 1.10
  • 100 MHz: 1.50
  • 200 MHz: 2.00
  • 400 MHz: 3.00
  • 1000 MHz: 5.00
• Capacitance: 24.6 pF/ft
• Velocity of Propagation: 84%

Cable Printing and Markings

Printed along the jacket: "LL400 50 OHM LOW LOSS COAXIAL CABLE MADE IN USA - DIRECT BURIAL" with convenient linear foot markings for your project.

Sold By the Foot

Order exactly the length you need! LL-400 is sold by the foot, with automatic price breaks at 50, 100, and 500-foot quantities.

Compatible Connectors for LL-400 / LMR-400 Coax

RP BNC Bulkhead Female: TES 430910

Product ID: VUPN6432