The actual RF coaxial connector electrical performance depends on the performance of the cable, the contact of the cable, the geometry of the connector, the contact of the inner conductor, and the like. The frequency of the coaxial line must be the frequency of use of weak components in the transmission line, as it depends on all components rather than one component. For example, an RF connector is used at a frequency of 10 GHz, the cable connected to it is used at 5 GHz, and the frequency of use of this component is 5 GHz. The combination of all factors determines the frequency of use of the entire transmission line.