Flexible RG58A/U Low Loss coaxial cable equal to LMR®195 .

RG58 is often used for low-power signal and RF connections with an impedance of 50 Ω. There are several versions with differences in core material (solid or braided wire) and shield (70% to 95% coverage).

Most two-way radio communication systems, such as marine, CB radio, amateur, police, fire, mining, WLAN antennas etc., are designed to work with a 50 Ω cable. It is commonly used on mobile antennas in vehicles to the radio due to its flexibility and small diameter enabling it to fit through tight areas. This cable can also be used on short to medium runs for other antennas such as base station, but attenuation figures should be checked for desired losses.

RG58A/U cable can be used from low to moderately high frequencies. Its signal attenuation depends on the frequency as outlined in the table below.

CWD-195Commswest Part Number (100mtrs): CWD195-100

Features and benefits:

  • Extremely Low Loss RG58 coaxial cable, at a low price
  • Halogen free and flame retardant cable types available on request
  • Excellent return loss performance and attenuation
Mechanical Characteristics
Conductor Construction 19AWG (1/1.00mm)
Material Solid Bare Copper Wire
Insulation Material Gas Injected Foamed Polyethylene
Thickness 0.90mm Nom.
Outside Diameter 2.80 ± 0.10mm
Colour Natural
Shield Foil Adhesive AL-MYLAR tape wrapped longitudinally on the
cable, AL-foil facing outward with 100% coverage.
Braid 16/7/0.127mm Tinned Copper Wires with 95% coverage min.
Jacket Material PVC (RoHS)
Thickness 0.78mm Nom.
Outside Diameter 4.95 ± 0.20mm
Colour Black


Electrical Characteristics
Impedance 50 ± 2 Ω
Capacitance 82 pF/M Nom.
Velocity of Propagation 81% Nom.
Dielectric Strength 1.0 KV(AC) / 1 min. Min.
Attenuation(as per 100mtrs) Nom. MHz 1 10 50 100 200 400 700 900 1000
dB 1.2 3.8 8.5 12 17.1 24.3 32.4 36.9 39


Please consult the sales team at Commswest Distribution for Halogen free and Flame retardant / halogen free alternate cables with operating temperatures up to +105 °C.

A range of connectors to suit this cable include; N-Type, BNC, TNC, SMA, FME, UHF & Mini UHF.  CLICK HERE For a full range of connectors.

Download Product Specifications RG58A/U Low Loss

LMR® is a registered Trademark of Times Microwave Systems