RG-174 (often written RG174) is a simple, low cost coaxial cable, with a 2.79 mm outer diameter and maximum operating frequency of 1 to 2 GHz depending on manufacturer variation. The cable was popular during early advancement of modern wireless communications, and still remains useable for simple RF applications.

RG174 coaxial cable layers

RF Specification

Min. Frequency
0 GHz
Max. Frequency
2 GHz
Shielding Effectiveness
> 40 dB
Capacitance
101.05 pF/m
Impedance
50 Ω
Velocity
66%
RF Operating Voltage
1100 Vrms

Frequency Test Data

Frequency Attenuation
1000 MHz
0.97 dB/m

Physical Specification

Colour
Black
Min. Bend Radius Static
28 mm
Min. Operating Temperature
-20 °C
Max. Operating Temperature
70 °C
Weight (g/m)
13 g

Cable Layers

Layer Diameter Materials Notes
Inner Conductor
0.48 mm
7x0.17 mm Strand
Dielectric
1.52 mm
Outer Conductor
1.90 mm
Outer Jacket
2.79 mm