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DVB-T/H with T2 X-Series Measurement Application N6153A & W6153A

Technical Overviews

  • DVB-T/H/T2 RF transmitters, modulators, gap-fillers, tuners, or amplifiers measurements
  • Single frequency network measurement (supports pre-, post-, 0 dB, and out-of-GI echo scenarios)
  • Auto-detect demodulation parameters from TPS decoding of DVB-T/H or from L1-Signalling of DVB-T2
  • DVB-T2 supports both single PLP and multi-PLP modes as well as SISO and MISO measurements
  • One-button tests with pass/fail limit per DVB-T, DVB-H, and DVB-T2 standards
  • Hardkey/softkey manual user interface or SCPI remote control
  • Built-in, context-sensitive help
  • Transportable license between X-Series signal analyzers

DVB-T/H with T2 Measurement App

The Keysight Technologies, Inc. N/W6153A measurement application provides one-button, standards-based power and modulation analysis capabilities to help you with design­ing, evaluating, and manufacturing DVB-T/H/T2 modulators, transmit­ters, amplifiers, tuners, and gap-fillers/repeaters. Optional analog baseband IQ inputs in the PXA or MXA signal analyzer provide you the flexibility to measure signal quality and mod-ulation accuracy with RF input or analog IQ input.

The N/W6153A measurement ap­plication is just one in a common library of more than 25 measurement applications in the Keysight X-Series. The Keysight X-Series is an evolu­tionary approach to signal analysis that spans instrumentation, measure­ments, and software.

The X-Series analyzers, with up­gradeable CPU, memory, disk drives, and I/O ports, enable you to keep your test assets current and extend instrument longevity. Proven algo­rithms, 100% code-compatibility, and a common UI across the X-Series create a consistent measurement framework for signal analysis that ensures repeatable results and measurement integrity so you can leverage your test system soft­ware through all phases of product development. In addition to fixed, perpetual licenses for our X-Series measurement applications, we also offer transportable licenses which can increase the value of your invest­ment by allowing to you transport the application to multiple X-Series analyzers.

Digital video broadcasting-terres­trial/handheld (DVB-T/H) is the Eu­ropean-based consortium standard for broadcast transmission of digital terrestrial/handheld television.

DVB-T

DVB-T is a flexible system that al­lows networks to be designed for the delivery of compressed digital audio, video, and other data in an MPEG transport stream using OFDM modulation with concatenated chan­nel coding (i.e. COFDM). It is the most widely adopted digital terrestrial television broadcasting standard in the world and is deployed in more than 30 countries.

In DVB-T, the use of OFDM modula­tion with appropriate guard interval allows optimal tradeoff between network topology and frequency efficiency. The capacity for hierar­chical modulation can enable two completely separate data streams to transmit in a single signal which can be used to trade off bit rate versus ruggedness. DVB-T has the following technical characteristics that make it a very flexible system.

DVB-H

DVB-H is an extension of the DVB-T standard, which takes into account the handheld receiver’s specific properties such as the small size, light weight, portability, and battery operation.

DVB-H uses a time slicing technique which results in a large battery power saving effect, and introduces a multi­protocol encapsulation forward error correction (MPE-FEC) scheme for reliable transmission in poor signal reception conditions. A transmission mode of 4k is defined in DVB-H to offer a tradeoff between the trans­mission cell size and mobile reception capabilities.

The complexity of the DVB-T/H stan­dards demands flexibility and excel­lent modulation analysis for system development and evaluation.

DVB-T2

The DVB-T2 standard, defined in ETSI EN 302 755, is an extension of the existing DVB-T standard, aim­ing to provide a minimum of 30% capacity increase over the DVB-T, improving single-frequency-network (SFN) performance, service specific robustness, better error correction ability, and bandwidth and frequency flexibility.

A new technology, called Rotated Constellation, is used and provides significant additional robustness in difficult channels. DVB-T2 defines two modes: Mode A (single PLP) and Mode B (multi-PLPs). A multi-PLPs mechanism is provided to separately adjust the robustness of each deliv­ery service within a channel to meet the required reception conditions. Furthermore, a receiver can save power by decoding only a single ser­vice rather than the entire multiplex of service.

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