ASTRO VG-849C Video Tester GeneratorMedia Pattern Generator ASTRO VG-849C The VG-849C is the most important programmable video signal generator with analog/digital output. This updated version of the VG-849 will now support HDMI 1.3 (* 12-bit color depth), making it the first unit of its kind to offer this new standard. This unit supports analog RGB / YPbPr signal switching and is compatible with the timing of the HDTV system. The VG-849C is the first unit of its kind to offer this new standard.