Digital Broadcast Analyzer No matter what your application is, the DBA package is up to the task. You can use it in the lab as the ultimate analysis tool or in the field as the most flexible debugging and diagnosis tool. Combined with the powerful Tektronix Real-Time Spectrum Analyzers and Anritsu MS2690A Series Signal Analyzers, it offers the best mixture of hardware and software capabilities; it is capable of assessing >48dB MER performance and, at the same time, triggering on unexpected clipping or interferences and capture seamlessly many seconds of signal activity.
The DBA analysis tool allows the digital broadcast design engineer and network technician to easily add all the required modulation quality and quality of service capabilities to their Tektronix Real-Time and Portable Spectrum Analyzer. The DBA analysis tool combined with the extraordinary spectrum analysis, transient capture, and frequency mask trigger capabilities of the Tektronix RTSA architecture will result in the perfect tool offering all the measurement capabilities required to fully characterize and diagnose any digital broadcast transmitter without requiring any extra tool. The built-in Transport Stream extraction capability along with the Tektronix MTS4SA closes the loop allowing for content analysis and complete cause-effect analysis. DBA offers a set of capabilities needed to characterize digital broadcast signals such as: Modulation analysis: MER (Modulation Error Ratio), MER vs Carrier, MER vs. Carrier vs. Time (MERGram), and selective constellation display. Complete Automatic Spectrum Quality Analysis as defined by the TR101/ETR290 standard. Complete channel response characterization in both time and frequency domains. Full Quality of Service Assessment at the transport layer as per TR101/ETR290 standard. Full TPS analysis and consistency check. Measurements may be performed over live signals allowing for the interactive measurements environment involved in equipment alignment and adjustments or over recorded data so triggered captures may be analyzed off-line. The DBA software can be run in any Windows based PC but it has been tailored to run right in the target instrument if desired. The display can show up to 4 simultaneous analysis windows and can be easily handled with a mouse and the RTSA embedded keyboard.
Modulation Quality Analysis
Quality of Service Testing
Data & Results Export
Instrument integration
Vector Spectrum Analyzers such as the Tektronix RTSA offer a very good view of the spectral characteristics of the DVB-T/H signals. However, it is not possible to assess the quality of any signal without analyzing its modulation quality. The TR101 290 standard sets a minimum frame for consistent, successful modulation quality analysis although it may not be sufficient for advanced diagnosis and troubleshooting.
Analysis functions Constellation / MER
Constellation may be limited to any set of carriers or any category while MER correlates to the analyzed carriers.
DBA adds all the analysis capabilities required by the DVB standards and adds many extra functions to help debugging problems even if they are transitory and it does it with the highest intrinsic MER performance in the market: >48dB.
Channel Response / SFN Analysis
Channel impulse response may be done in time and frequency domains while transmitters in SFN are automatically identified.
Transient Characterization
DBA can show MER vs time and it introduces the exclusive MERGRAM (MER vs Carrier vs Time) to fully characterize transients.
Full TR 101 290 Compliance
Analysis performed by the DBA package is carried out according to the DVB standard with the highest intrinsic MER: >48dB.
Modulation quality analysys is just one of the aspects of the overall quality of any DVB-T/H signal. Quality of service parameters such as error performance, signal consistency (i.e. referred to TPS information), or contents analysis are many times handled by specialized instruments.
DBA adds most of the QoS functionality and it does it with complete correlation with modulation quality performance and transient characterization capability. Full TPS information is displayed by DBA and analysis parameters may be automatically set to reflect the TPS contents if desired.
QoS Functionality TPS Analysis and Automation
TPS information is fully decoded so consistency can be checked. Analysis settings are automatically set when desired.
Error Analysis
Error rates before and after Viterbi and PER (Packet Error Ratio) are shown if required so correlation with events like clipping is easy.
Transient Characterization
Errors can be shown as a function of time so QoS behavior on transients triggered by time, frequency, or modulation events, can be established.
TR 101 290 Compliance
QoS parameters are measured following the TR 101 290 DVB guidelines so perfect repeatability and traceability is obtained.
Export Categories Graph Data
All the data in graphs generated by the DBA application can be exported to an ASCII delimited file at a mouse click.
Measurements
Measurements and tables are exported as ASCII delimited files so they can be read by any software package such as Excel™.
Modulation quality analysys is just one of the aspects of the overall quality of any DVB-T/H signal. Quality of service parameters such as error performance, signal consistency (i.e. referred to TPS information), or contents analysis are many times handled by specialized instruments.
Trasnport Stream Extraction
DBA can export all the results and measurements it generates. Additionally it can extract the Transport Stream being carried out by the signal to a file so it can be played back or analyzed using sophisticated transport stream or elementary stream analysis software such as the Tektronix MTS4SA™.
Transport Streams can be extracted from captured signals so they can be analyzed or played-back by off-the-shelf software.
Documentation
Users can independently define up to 4 independent analysis windows so documentation of results is extremely convenient.
Connecting to the RSA Run DBA in the Instrument
DBA can be used as a "virtual DVB-T/H" analyzer so it uses the instrument diplay and controls all the necessary settings.
Remote Operation
DBA can communicate with the instrument through any TCP-IP connection so it can be used in the field and handled by experts from a central location.
Modern VSAs such as the Tektronix RTSA offer excellent connectivity features including the capability of interacting with applications running in the embedded PC. This strategy allows to implement "virtual analyzers" and to develop applications that can connect to the instrument independently of the computer where the application runs and of the communication interface.
DBA uses the OpenChoice™ architecture from Tektronix based in the VISA standard to communicate with the RSA3000 and RSA6100 series analyzers. This allows the user to run the DBA right in the analyzer or, if desired, from an external computer through the traditional GPIB interface or remotely through the Internet using the built-in Ethernet interface. Off-line analysis can be performed on a variety of file formats including those supported by the Tektronix Real-Time and Portable Spectrum Analyzers.
Remote Operation
DBA can work on live signals or it can analyze captured files. It can team up with the RSAVu software for complete off-line signal characterization.
Portable Analyzer Support
DBA can analyze iqt files imported from the Tektronix H600/SA2600 series of Portable Spectrum Analyzers
Lorem ipsum test test test. Repeat: DBA adds most of the QoS functionality and it does it with complete correlation with modulation quality performance and transient characterization capability. Full TPS information is displayed by DBA and analysis parameters may be automatically set to reflect the TPS contents if desired.

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