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RG-83/U Specialty Low-Loss Coaxial Cable – 35 Ohm Performance

RG-83/U Specialty Low-Loss coaxial cable is a 35 Ohm transmission line designed for specialized RF applications where a lower characteristic impedance is required. With its heavy solid bare copper center conductor, solid polyethylene dielectric, and bare copper braid shield, RG-83/U is well suited for impedance matching, phasing networks, antenna systems, and specialized RF installations.

Key Features

  • ✅ Nominal impedance: 35 Ohms for specialized RF matching and phasing applications
  • ✅ Heavy 0.102" solid bare copper center conductor for excellent conductivity and power handling
  • ✅ Solid polyethylene dielectric for stable electrical performance
  • ✅ Bare copper braid shield for effective RF shielding
  • ✅ Durable black PVC outer jacket
  • ✅ Approximately 0.405" overall cable diameter
  • ✅ Suitable for direct burial applications

Typical Uses

  • ✅ Antenna impedance-matching sections
  • ✅ RF phasing harnesses and antenna arrays
  • ✅ Quarter-wave impedance transformers
  • ✅ Specialized RF transmission and matching networks
  • ✅ Amateur radio antenna projects requiring 35 Ohm coax
  • ✅ Replacement and restoration of RF systems originally designed for RG-83/U

Technical Specifications

  • ✅ Impedance: 35 Ohms nominal
  • ✅ Capacitance: approximately 44 pF/ft
  • ✅ Velocity of propagation: approximately 66%
  • ✅ Center conductor: 0.102" solid bare copper (approximately 10 AWG)
  • ✅ Dielectric: Solid polyethylene
  • ✅ Shield: Bare copper braid
  • ✅ Jacket: Black PVC
  • ✅ Overall diameter: approximately 0.405"

Length Options

  • ✅ Pre-cut lengths available from 25 ft through 500 ft

RG-83/U is a specialty 35 Ohm coax and should not be confused with standard 50 Ohm or 75 Ohm transmission cable. Its unique impedance makes it particularly useful for RF matching and phasing applications where 35 Ohm coax is specifically required.

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Specialty Low Loss RG-83 Specialty Low Loss RG-83 Specialty Low Loss RG-83 Specialty Low Loss RG-83
Specialty Low Loss RG-83 25 FT
Our price: $101.18
Sale Price: $99.75
Savings: $1.43
Specialty Low Loss RG-83 50 FT
Our price: $202.35
Sale Price: $199.50
Savings: $2.85
Specialty Low Loss RG-83 100 FT
Our price: $404.70
Sale Price: $399.00
Savings: $5.70
Specialty Low Loss RG-83 150 FT
Our price: $607.05
Sale Price: $598.50
Savings: $8.55
35 ohm, .102" solid BC, solid PE, BC braid, black PVC jacket Low Loss 50 ohm


 		RG83 Coax Cable can be used in direct burial applications.
 		RG83 Coax Cable can be used in direct burial applications.
 		RG83 Coax Cable can be used in direct burial applications.
Specialty Low Loss RG-83 Specialty Low Loss RG-83 Specialty Low Loss RG-83 Specialty Low Loss RG-83
Specialty Low Loss RG-83 200 FT
Our price: $809.40
Sale Price: $798.00
Savings: $11.40
Specialty Low Loss RG-83 250 FT
Our price: $1,011.75
Sale Price: $997.50
Savings: $14.25
Specialty Low Loss RG-83 500 FT
Our price: $2,023.50
Sale Price: $1,995.00
Savings: $28.50
Specialty Low Loss RG-83 125 FT
Our price: $505.88
Sale Price: $498.75
Savings: $7.13
RG83 Coax Cable can be used in direct burial applications.
 		RG83 Coax Cable can be used in direct burial applications.
 		RG83 Coax Cable can be used in direct burial applications.
 		RG83 Coax Cable can be used in direct burial applications.
Specialty Low Loss RG-83 Specialty Low Loss RG-83 Specialty Low Loss RG-83
Specialty Low Loss RG-83 175 FT
Our price: $708.23
Sale Price: $698.25
Savings: $9.98
Specialty Low Loss RG-83 225 FT
Our price: $910.58
Sale Price: $897.75
Savings: $12.83
Specialty Low Loss RG-83 75 FT
Our price: $303.58
Sale Price: $299.25
Savings: $4.33
RG83 Coax Cable can be used in direct burial applications.
 		RG83 Coax Cable can be used in direct burial applications.
 		RG83 Coax Cable can be used in direct burial applications.