RG-178 is a type of RF coaxial cable that is commonly used in telecommunications and radio frequency transmission requiring a high operating temperature. This cable is characterised by its small diameter and flexibility, making it suitable for applications where space is limited. However, due to its small size, RG-178 has a higher signal loss compared to larger cables, which can limit its effectiveness over longer distances. Its thin shielding can make it more susceptible to interference. While RG-178 is a practical choice for compact installations and short-range applications, it may not be the optimal choice for larger, more complex systems or environments with high levels of interference.

RG-178 coaxial cable layers

RF Specification

Min. Frequency
0 GHz
Max. Frequency
3 GHz
Shielding Effectiveness
> 40 dB
Capacitance
96.45 pF/m
RF Operating Voltage
750 Vrms
Impedance
50 Ω
Velocity
70%
Attenuation Table
Frequency Attenuation
1000 MHz
1.49 dB/m

Physical Specification

Flexibility
Flexible
Colour
Orange
Min. Bend Radius Static
10 mm
Min. Bend Radius Dynamic
20 mm
Min. Operating Temperature
-55 °C
Max. Operating Temperature
200 °C
Weight (g/m)
9.3 g
Cable Layers
Layer Diameter Materials Notes
Inner Conductor
0.30 mm
7x0.102 mm Strand
Dielectric
0.86 mm
Outer Conductor
1.30 mm
Outer Jacket
1.83 mm