The LabSat GPS Simulator now has video synchronization capability. Using a Racelogic Video VBOX, a GPS datalogger used by automotive and motorsports professionals, video can be recorded live and then replayed, synchronized with LabSat data. The internal GPS engine in Video VBOX time stamps the video, enabling the RF data to be perfectly synchronized, with the GPS data graphically superimposed on the image during recording. For developers, this means multi-camera video can be recorded of their test routes alongside the GPS RF data and played back in sync, with a real-time graphic overlay. This visual element to testing is for companies developing location-based services (LBS) applications and enables manufacturers to demonstrate their GPS equipment at exhibitions and in training. A SiGe GPS receiver and a u-blox LEA4A are used.