Abstract: Desired positioning of a sensor, such as an antenna, is provided. The system includes a platform which can be a vehicle, such as an aircraft. The sensor is connected to the platform by means of a mount. Alignment data is obtained in order to compensate for any difference in reference coordinate systems between the platform and the mount when the platform is in a first position. The alignment data can be obtained by incremental scanning of the sensor relative to an object that transmits a signal to the sensor. The strengths or amplitudes of the signals at the incremental positions can be utilized in calculating or arriving at the alignment data used to compensate for any misalignments between the coordinate systems of the platform and the mount. When the movable platform is in another position, the alignment data is used to desirably position the sensor.