R&S®DVM Family
The best solution for all DTV monitoring and development applications
Features
- Comprehensive monitoring functions
- Detailed configuration options
- Powerful network functions
- Extensive analysis and visualization functions
- Detailed elementary stream analysis
- Detailed data service analysis
- Video and audio decoding
- Recording and generation of transportstreams
- Various interfaces for RF signals
- Gigabit Ethernet IP interface
- Support of the following standards
Comprehensive monitoring functions
- RF signals of various standards
All relevant signal characteristics are monitored. This includes level, frequency deviation, BER, MER, C/N, SNR, and Eb/N0 results can be easily illustrated with the constellation diagram. - IPTV signals
Up to 300 IP signals on the Gigabit Ethernet link are monitored simultaneousely. Extensive measurements permit a safe assessment of the signal quality. The measurements include MDI-DF (delay factor), MDI-MLR (media loss rate), IP bit rate, IP packet jitter, IP inter-arrival time, and payload bit rate. - Transport stream characteristics not only in line with TR 101 290
For monitoring transport streams not only the characteristics specified in the TR 101 290 Measurement Guidelines with priority levels 1, 2, and 3 are analyzed, but many others as well. This includes the MIP that is used in DVB-T SFN, the data rates of the individual elements, and compliance with encryption requirements. Moreover, the TS Modification measurements make it possible to determine wether there have been modifications to the transport stream. These modifications may not be detected by the measurements in line with TR 101 290 although they are perhaps undesired or should be recognized. An example of an undetected modification is the omission of sound. This is not detected in line with TR 101 290 if the multiplexer modifies the PTM accordingly. - Template monitoring
Template monitoring allows the comparison of numerous transport stram characteristics with predefined values. Additional important characteristics can thus be monitored, such as the following: - Are all programs available?
- Do the programs include all desired elements?
- Does a program occupy to much bandwidth?
- Are all program designations correct?
- TS Capture
The TS Capture function allows event-controlled archiving of TS segments on the system hard disk for later analysis and for verification or documentation purposes. Automated recording of incorrect TS segments is thus possible. This function is simultaneousely available for all monitored transport streams (up to 20). The TS Capture functiion can be adapted to user requirements by means of various settings such as PID filter, pretrigger size, start event, etc
A special feature of the function is the automated template generation by means of the applied transport stream. The template is generated by simply pressing a button.
