The AVLink PG-HD1X generates video Test patterns at full broadcast quality for testing and calibrating digital displays. The unit features 8 video Test patterns and 7 timings up to HDTVs 1080p. It has been designed to Test and maintain studio equipment, such as monitors, cabling, and recording equipment. The SDI standard transfer signals are uncompressed and are self-synchronizing between the source (transmitter) and destination (receiver).