A Drive Tester is a professional who conducts field tests and measurements to assess the performance and quality of wireless communication networks. Their primary objective is to evaluate the network's coverage, signal strength, call quality, and data transmission speed while driving through various locations. Drive Testers use specialized equipment and software to collect data, identify network issues, and provide feedback for network optimization. They play a critical role in ensuring that mobile networks meet performance standards and deliver reliable voice and data services to customers, helping telecommunication companies enhance network efficiency and user experience.