Measurement of Voltage Standing Wave Ratio with error compensation

The invention claims a calculates the radiofrequency transmission line (16) voltage standing-wave ratio method, the radiofrequency transmission line (16) on connected with the first (22) and second (24) directional coupler, and an indication to the first voltage of the coupler (22) produced the first direction of the radiofrequency transmission line (16) dissemination's forward power, the second voltage of the second directional coupler (24) state indication with the opposite directions of the radiofrequency transmission line (16) broadcast power reflection rate. The realizing the following steps: A second stage for mounting, so that the first and second voltage value, an associated at least corrected value and second voltage, a production revises the second voltage, and revises the second voltage based on the first circuit, a voltage standing-wave ratio. The corrected value of the first stage calibration processing obtaining. In addition, the claimed is a realizing method and mobile communication system and base station.