The Rohde & Schwarz DVRG DTV Recorder Generator is a PC-based platform for generation, recording, and playback of digital television signals across ATSC and DVB standards. Built on embedded Windows NT architecture, it supports transport stream analysis and generation via standard VGA connectivity and 100BaseT Ethernet for remote control and file transfer. The instrument delivers high-fidelity signal processing for DTV receiver and broadcast equipment development and validation.
Technical Specifications
Recording Capabilities
• MPEG-2 transport stream recording at data rates up to 214 Mbit/s
• SDI signal recording at 270 Mbit/s with transparent processing including ancillary data and embedded audio (optional)
• SDTI signal recording with optional DVRG-B4 module
• Transport stream recording with simultaneous 8-bit interface-specific data via SPI feature
• Continuous buffering with external trigger-based capture for error analysis
• Trigger-based recording captures time sections before and after the trigger event
• Transparent recording of non-DTV-compliant signals via dedicated interfaces
Signal Generation
• Pre-configured MPEG-2 transport streams for ATSC and DVB standards
• Elementary streams with video, audio, and supplemental data (teletext, PRBS)
• Multiple video formats at varying data rates and frequencies
• Standard test patterns: color bars, zone plate, CCIR17/18/331, ITS1 to ITS4, Rohde & Schwarz codec test pattern
• Optional HDTV signal support and special test signals (DVR-HDTV, DV-TCM options)
Playback Capabilities
• MPEG-2 transport stream replay with TRP/TS file support
• Uncompressed SDI format replay at 270 Mbit/s (optional DVRG-B2 and -B4)
• Loop playback from RAM for continuous operation
• PCR jitter injection up to ±10 ms with selectable frequency and waveform for decoder and multiplexer stress testing
• Variable replay data rate across wide operating range
– Key Features
• Universal digital video stream processing platform
• PC-based architecture with Windows NT embedded operating system
• 100BaseT Ethernet interface for remote operation
• External trigger control for event-based recording
• Modular option support for expanded capability
– Typical Applications
• Set-Top Box and decoder validation
• Transport stream generation and analysis
• D/A converter testing
• Multiplexer stress and error analysis
• DTV receiver development and troubleshooting
– Compatibility & Integration
Standard connectivity includes VGA monitor, keyboard, and mouse interfaces for direct control. Network integration via 100BaseT Ethernet enables remote operation and transport stream file transfer.
