R&S^®DVG MPEG2 Measurement Generator

The digital data streams generated by DVG are used as test signals for a variety of equipment employed on digital TV transmission links – from the studio to the domestic receiver. One field of application of DVG therefore is in the development, production, quality management and servicing of equipment processing MPEG2-coded signals.

Further applications are in the field of signal distribution and transmission (eg cable headends), where the generator can be used as a substitution signal source.

Test signals

DVG offers a variety of predefined MPEG2 transport streams which can be called at a keystroke. Video data streams of different contents and data rates are available. The set of signals stored comprises moving picture sequences as well as stationary test patterns. For fast testing of set-top boxes, ie integrated receiver decoders (IRT), DVG provides the Rohde &Schwarz codec test pattern (see right). Thanks to integrated test signals in the upper and lower picture area and using a suitable video analyzer such as VSA, analog interfaces can be tested out within a few seconds. In addition, moving elements at the corners and in the center of the picture allow visual checking of the decoder functions. Audio data streams, which are also available at different data rates, comprise the sound component accompanying the video sequences as well as special audio test signals.

Codec test pattern, available in aspect ratios 4:3 and 16:9

Application Areas

• Development
• Quality assurance (reliable and compliant signal standard)
• Manufacturing of multiplexers, decoders, receivers and set-top-boxes for digital TV