What are RG130 Coaxial Cables?

1 Answer
Can you answer this question?

- everything RF

Jan 18, 2023

RG130 Coaxial Cables are a type of cable suitable for long-distance signal transmission due to their excellent signal integrity and lower signal attenuation over a short distance. These cables are ideal for wireless infrastructure and networking applications.


The RG-130/U is a 95-ohm coaxial cable with an overall diameter of 0.625 inches and a voltage rating of up to 3000 Vrms. It has two inner bare copper wires (carrying the electrical signal) with 7x21 stranding construction. The inner conductors are enclosed by an insulation layer made of Polyethylene (PE). The insulation layer is then completely enclosed by 1 tinned copper braid shield that forms the outer conductor and also provides shielding against electromagnetic interference (EMI). Finally, the structure is covered with an outermost layer - called a jacket - made of Polyvinyl Chloride (PVC). The jacket protects the cable core from mechanical, moisture, and chemical issues.

The RG130/U cable exhibits capacitance of approximately 17 pF/ft (55.92 pF/m), and signal attenuation of around 8.8 dB/100 ft at 400 MHz (signal attenuation of the cable depending on the frequency). It has the center conductor measuring 0.0855 inches (2.17 mm) in diameter and an insulation layer measuring 0.472 inches (11.98 mm) in diameter.

Key Specifications of RG-130/U Coaxial Cables


Typical Value

Overall diameter (inch)


Characteristic Impedance (Zo)

95 ohms

Maximum Voltage Rating (RMS)

3000 V

Cable Capacitance (pF/ft)


Attenuation (db/100 ft , @ 400 MHz)



Polyethylene (PE)

Click here to view a list of coaxial cables on everything RF.