An increasing number of multimedia-based devices is integrated into passenger cars. RF modules do not only supply infotainment services but also provide navigation and security services such as eCall. In addition to that many different broadcast standards have been established all over the world. All of them have to be tested properly in one test field.
In order to reduce test times and costs while increasing throughput and diversity, free field recording and playback of naturally and environmentally impaired signals as well as signal generation become more and more important. Generation and playback of real word RF signals in the lab reduces the need for expensive field test drives and enables manufactureres to do fast and simultaneous lab testing of multiple RF devices, even if a certain signal is not broadcast in the area.