Guy-wire

A backstay is a guy rope of transmission towers. When radiating transmitting masts suitable precautions must be taken to prevent that they come into resonance with the radiated frequency. This is usually the backstay multiple insulators in portions which are shorter than one fifth of the wavelength radiated divided. But it is also possible to ground the backstay the Pardunenfundamenten via a throttle, which prevents an electric resonance to measure its length adapted so that a direct connection to earth is possible or to use ropes made of non-conductive material.