This work aims to develop a system that can correct the misalignment between a mechanical scan radar and the pedestal on which it is installed. The pedestal is used to move the radar about its azimuth and elevation axes. When the system is assembled, due to mechanical tolerances, the mechanical and the electrical zeros are not aligned, and an offset is present. To measure it, the onboard analog rotation sensor called resolver is used. This sensor has a primary and two secondary windings, placed at 90° relative to each other; given an input voltage VIN, and the output voltages Vcos and Vsin, it is possible to evaluate the angle as the arctangent of the ratio of Vsin and Vcos.