Its versatility, flexibility and numerous options make the R&S®DVRG the ideal platform for a variety of different applications.
Development
In the development of set-top boxes and other instruments that process digital TV signals according to the MPEG-2 standard, the R&S®DVRG is optimally suited as a signal source for a wide range of tests due to its extensive collection of transport streams. Advanced Stream Combiner™ makes it possible to quickly and easily create customized transport streams to expand the set of existing streams.
Quality assurance
Test signals of the R&S®DVRG are always replayed in the same way and thus serve as reference standards for quality assurance tests. Diverse tests are possible due to the extensive collection of signals. Using the optional Test Card M Streams R&S®DV-TCM, it is easy to add special signals to the collection.
Production
Device software and configurations can be downloaded via customer-specific transport streams to the STB or any other instrument.
Error analyses with the R&S®DVRG and realtime analyzers
Substitution signal generator
If the signal supply line to the playout center, the cable headend, or the satellite uplink or downlink fails, the R&S®DVRG functions as a substitution signal source and provides an endless and seamless transport stream. Due to the hard disk's high storage capacity, the R&S®DVRG can replay even very long sequences.
Monitoring and error analysis
The R&S®DVRG's trigger function makes it an ideal tool for simplifying error analysis and for effective monitoring. Any signal segments before and after the trigger signal can be automatically stored for detailed analysis. The trigger signal can be activated from any device that has a relay port. The MPEG-2 Measurement Decoder R&S®DVMD, the MPEG-2 Monitoring System R&S® DVM100/120 and the Digital Video Quality Analyzer R&S®DVQ are all equipped with these ports (R&S®DVMD with option R&S®DVMD-B5).
The "multiple" function mode of the trigger function is particularly worth mentioning, as it can be used to automatically and continuously record signals for a number of trigger signals over a long period of time (overnight, for example).
From SDI recording to MPEG-2 transport stream
A special application of the R&S®DVRG makes it possible to combine SDI recording and transport stream replaying. With these functions, uncompressed signals can be recorded, encoded, integrated into a transport stream and replayed using a single instrument. Encoding and multiplexing also take place in the R&S®DVRG. Encoding is performed by means of third-party standard encoding software, and multiplexing runs via Stream Combiner™.
