... etc.Main monitoring computer transmits control signals into positioner's controller via RS-232 interface, to control antenna ... , such as antenna gain, Front-Back Ratio, half-power point beamwidth, zero position, each sidelobe width, each sidelobe ... antenna bracket , 2 - 2D positioner , 3 - polarizationpositioner , 4 - positioner's controller , 5 - Main monitoring computer , 6 - test software , 7 - ...