This paper presents the culmination of a Final Degree Project undertaken to fulfill the requirements for the title of Electrical Engineer with a specialization in Telecommunications. The project revolves around the creation of a comprehensive 5G Standalone network testbed utilizing open-source resources, specifically leveraging the OpenAirInterface development framework integrated with real radio interfaces facilitated by Software Defined Radio (SDR) technology. The assembled testbed's functionality undergoes rigorous evaluation, encompassing behavioral analysis, capability measurements, and identification of both system and deployment limitations. Furthermore, an alternative scheduler software is developed and seamlessly integrated to demonstrate the system's versatility as a developmental environment. The outcomes of this project not only validate the system's efficacy for educational and research purposes but also establish its potential as an infrastructure platform for related systems.