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Davis RF DRF-400 – Low-Loss 50 Ohm Coax Cable Comparable to LMR-400

DRF-400 by Davis RF is a low-loss, high-performance 50 Ohm coaxial cable engineered to match the electrical performance of LMR-400, with the added advantage of rugged outdoor durability and flexibility. Designed for use in HF, VHF, UHF, and even SHF systems, DRF-400 is ideal for both base station and mobile feedline runs.

Why Choose DRF-400 Over LMR-400?

  • Equivalent Electrical Specs – Comparable attenuation and VSWR across the frequency range
  • Enhanced Jacket Durability – Rugged polyethylene outer jacket is superior for outdoor use
  • Flexible & Installer-Friendly – Easier to handle than solid-core alternatives
  • High Shielding Effectiveness – 100% coverage foil plus 90% tinned copper braid for strong RFI protection

Ideal Applications

  • ✅ Base station coax runs from radio to antenna
  • ✅ HF through 2.4 GHz amateur and commercial systems
  • ✅ Low-loss jumpers and interconnects in repeaters and stations
  • ✅ Environments requiring superior weather and UV resistance

Specifications (Compared to LMR-400)

  • Impedance: 50 Ohms
  • Center Conductor: Stranded bare copper (LMR-400 uses solid copper-clad aluminum)
  • Dielectric: Foamed polyethylene
  • Shielding: 100% aluminum/polyester foil + 90% tinned copper braid
  • Outer Jacket: Black polyethylene (UV-resistant)
  • Outer Diameter: ~0.405" (10.29 mm)
  • Attenuation @ 100 MHz: ~1.5 dB/100 ft (same as LMR-400)
  • Attenuation @ 450 MHz: ~2.8 dB/100 ft
  • Power Handling: 1500W @ 30 MHz (typical)

Davis RF DRF-400 is the preferred coax for those seeking LMR-400 performance with enhanced jacket toughness and stranded-core flexibility. Made in the USA and available in bulk spools or cut-to-length options for any RF system.

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Davis RF-400 500FT
Our price: $634.80
Sale Price: $638.80
Davis RF-400 50FT
Our price: $63.48
Sale Price: $62.48
Savings: $1.00
Davis RF 400 25FT
Our price: $31.74
Davis RF-400 250FT
Our price: $317.40
Sale Price: $313.40
Savings: $4.00
50 ohms, Velocity, 85%, 10 AWG solid BCC aluminum, Dielectric: Gas-injected foam polyethylene 50 ohms, Velocity, 85%, 10 AWG solid BCC aluminum, Dielectric: Gas-injected foam polyethylene 50 ohms, Velocity, 85%, 10 AWG solid BCC aluminum, Dielectric: Gas-injected foam polyethylene 50 ohms, Velocity, 85%, 10 AWG solid BCC aluminum, Dielectric: Gas-injected foam polyethylene
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Davis RF-400 200FT
Our price: $253.92
Davis RF-400 175FT
Our price: $222.18
Davis RF-400 150FT
Our price: $189.44
Sale Price: $186.44
Savings: $3.00
Davis RF 400 125FT
Our price: $158.70
Sale Price: $156.70
Savings: $2.00
50 ohms, Velocity, 85%, 10 AWG solid BCC aluminum, Dielectric: Gas-injected foam polyethylene 50 ohms, Velocity, 85%, 10 AWG solid BCC aluminum, Dielectric: Gas-injected foam polyethylene 50 ohms, Velocity, 85%, 10 AWG solid BCC aluminum, Dielectric: Gas-injected foam polyethylene 50 ohms, Velocity, 85%, 10 AWG solid BCC aluminum, Dielectric: Gas-injected foam polyethylene
Davis RF - RG-400 Davis RF - RG-400
Davis RF -400 100FT
Our price: $126.96
Sale Price: $125.96
Savings: $1.00
Davis RF-400 75FT
Our price: $95.22
Sale Price: $93.22
Savings: $2.00
50 ohms, Velocity, 85%, 10 AWG solid BCC aluminum, Dielectric: Gas-injected foam polyethylene 50 ohms, Velocity, 85%, 10 AWG solid BCC aluminum, Dielectric: Gas-injected foam polyethylene
   
 
LMR™ is a trade mark of Times Microwave Systems Corp.
DFR-400
™ is a trademark of the Davis RF