RG58 Coax Cable Single Shielded ( PER METER )

The RG-58 Coaxial Cable is a small, flexible, and single-shielded cable that is one of the most common types of

50 Ohm

impedance cables, widely used for general-purpose Radio Frequency (RF) and communication applications

RG-58 cable is easily recognizable by its small outer diameter and is defined by its core characteristics and layered construction.

Component	Typical Specification	Note
Characteristic Impedance	$50 Ohms$ ( $\pm 2 Ohms$ )	Standard impedance for radio communications.
Outer Diameter (OD)	$\approx 4.95 mm$ ( $\approx 0.195 inches$ )	Small, contributing to its flexibility and lightweight nature.
Inner Conductor	$20 AWG$ (or $\approx 0.81 mm$ diameter), often stranded tinned copper	Stranded core (in versions like RG-58A/U or RG-58C/U) increases flexibility.
Dielectric	Solid Polyethylene (PE)	Insulating layer that maintains the precise spacing required for the $50 Ohm$ impedance.
Shield	Single Braid, typically tinned copper ( $\approx 94% coverage$ )	Provides electromagnetic interference (EMI) protection. Being a single shield makes it more flexible but offers less protection than double-shielded cables (like RG-214U).
Jacket	PVC (Polyvinyl Chloride), usually black	Provides protection from abrasion and environmental factors.
Velocity of Propagation (VOP)	$\approx 66%$	The speed of signal travel relative to the speed of light.

Technical Specification

Parameter	Specification (Typical)	Unit
I. Electrical Characteristics
Characteristic Impedance	$50 \pm 2$	$Ω$ (Ohms)
Max Operating Frequency	$1$ (Practical) to $3$ (Max)	$GHz$
Nominal Capacitance	$95 to 101$	$pF/m$
Velocity of Propagation (Vp)	$66$	$%$
Max Operating Voltage (RMS)	$1, 500$ to $1, 900$	$V$
Conductor DC Resistance	$\approx 38.4 to 40$	$Ohms/km$
II. Physical/Mechanical
Overall Diameter (OD)	$4.95$ to $5.00$ ( $\approx 0.195$ inch)	$mm$
Inner Conductor Type	Stranded Tinned Copper (e.g., $19 \times 0.18 mm$ )
Dielectric Material	Solid Polyethylene (PE)
Shield Type	Single Braid, Tinned Copper	$\approx 94%$ Coverage
Jacket Material	PVC (Polyvinyl Chloride)
Min. Static Bending Radius	$\approx 25$	$mm$
Operating Temperature	$- 40 to + 85$	$°C$