This work presents the development and evaluation of a low-cost antenna measurement system based on the application of reverse engineering and the impact of contemporary technology on measurement processes. The proposed system demonstrates how modern tools such as graphical user interfaces (GUI) and precise motor control contribute to the automation, ease of use, and efficiency of data acquisition in experimental setups. The reverse engineering methodology enabled the replication and customization of essential functionalities of commercial systems, while significantly reducing costs without compromising core performance. The developed GUI proved essential in enhancing user interaction by allowing real-time configuration, data visualization, and report generation. Experimental results confirmed that the radiation patterns measured with the prototype system closely match those obtained from a commercial system, with minor discrepancies mainly due to the limitations in isolation materials used. The system’s modular and scalable design paves the way for further improvements and adaptability to specific user requirements in antenna characterization tasks.