Spirent Communications plc has annouces Virtual Drive Test and Fading Lab functionality is now available on Spirent's SR5500 Wireless Channel Emulator. Virtual Drive Test allows rapid re-creation of RF conditions to bring real-world field testing of mobile devices into the lab. Fading Lab enables the creation or replay of highly-detailed, advanced radio environments from a wide range of data sources. Virtual Drive Test uses the company's exclusive Dynamic Environment Emulation (DEE) feature to provide a more rigorous and sustainable alternative. Virtual Drive Test generates a set of controlled dynamic RF channels based on channel parameter data. Complex radio mobility scenarios can be created without deploying scores of vans, and the RF environment remains consistent between test iterations. Spirent's new Fading Lab supplements the SR5500's existing real-time engine with a new "Fading Data Playback" engine. The Fading Lab engine converts data into a sample-accurate wireless RF environment. The Fading Lab's universal interface accepts data from a wide range of sources including channel-sounding tools and software packages.