Motor Drive PCB Board for Sperry Bridgemaster and Visionmaster FT Radars T65801811 9: The motor drive PCB (Printed Circuit Board) for Sperry Bridgemaster and Visionmaster FT radars is used to control the motor functions within these radar systems. It plays a vital role in the operation of the radar units, ensuring that they can accurately scan and display maritime surroundings. The PCB board helps with precise motor control and overall radar performance.