RG 178 cable
The RG-178 belongs to the extremely thin high frequency cables.
The RG-178 cable has an impedance of 50 ohms and is characterized by a diameter of only 1.91 mm, a stranded inner conductor consisting of 7 x 0.102 mm wires and a bending radius of 10 mm. These characteristics are only undercut by the U.FL cable.
At 1 MHz, the RG-178 has an attenuation of 12 dB/km. The usable frequency range extends over the ISM band at 2.4 GHz. At this frequency, the attenuation is 2.5 dB/m.