The V-SG4K-3G is a test pattern signal generator that can quickly and easily test HDMI and SDI video and audio equipment from out in the field. Compact, hand-held design makes it easy for testing out many different kinds of equipment while on the go, and it can generate up to 39 different test patterns plus four additional custom patterns. It has a 3-inch LCD screen for clear test pattern viewing, forward-facing buttons, and the ability to control through PC. The V-SG4K-3G has a fast startup and an optional battery pack for increased portability, and can incorporate custom frame rates and resolutions when controlled through a PC. The V-SG4K-3G also comes equipped with EDID interface software.