With the advent of economical digital solutions to the requirements of broadcasters and programme makers, the need to ensure that the equipment is outputting the best quality achievable becomes more important and more difficult to establish when shooting on location or when time is of the essence. Lower priced recording, editing, playback and monitoring equipment must be checked as accurately and economically as possible to ensure that it is fully compliant and satisfies the engineers responsible for their performance. Marshal, the US based manufacturing company located in El Segundo, California has a long history of introducing products that the market needs at the right time and true to form, the latest offering provides unparalleled flexibility. Available now from UK distributor Cache Media Ltd, The Marshall V-SG4K-3G is a test pattern signal generator that can quickly and easily test HDMI and SDI video and audio equipment out in the field as well as in the studio