Column Control DTX

DTMB (CTTB) X-Series Measurement Application N6156A & W6156A

Technical Overviews

  • Measure DTMB (CTTB) transmitters, exciters, modulators, gap-fillers, tuners, or amplifiers performance
  • Perform one-button tests with pass/fail limit per DTMB (CTTB) standards
  • Use hardkey/softkey manual user interface or SCPI remote user interface
  • Leverage built-in, context-sensitive help
  • Move the application between X-Series signal analyzers with transportable licensing

The Keysight Technologies, Inc. DTMB (CTTB) measurement applica­tion provides one-button standard-based power and modulation analysis capabilities to help your design, evaluation, and manufacturing of DTMB (CTTB) modulators, transmit­ters, amplifiers, tuners, and gap-fill­ers/repeaters. Furthermore, with the optional analog baseband IQ inputs in the PXA or MXA signal analyzer, it can provide you the flexibility of mea­suring the signal quality and modula­tion accuracy with RF input or analog IQ input.

The DTMB (CTTB) measurement application is just one in a common library of more than 25 measurement applications in the Keysight X-Series, 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

Key parameter setup

Carrier mode: OFDM (C = 3780) and single carrier (C = 1)

Device type: Transmitter/exciter

Bandwidth: 6 and 8 MHz

Header type: PN 420/595/945

Modulation: 4QAM-NR/4QAM/16QAM/32QAM/64QAM

Input: RF or analog IQ (available in the N9030A PXA or N9020A MXA) for signal quality and modulation accuracy measure­ments

Technology Overview

Digital terrestrial/television multi­media broadcasting (DTMB), also known as China terrestrial television broadcasting (CTTB), is the Chi­nese national terrestrial digital TV broadcasting standard which was announced on August 18, 2006 and implemented from August 1, 2007.

DTMB supports both multi-carrier (C=3780) and single-carrier (C=1) modulation scheme. Both schemes use low density parity check (LDPC) coding in forward error correction (FEC), which can provide superior error correction capability for a bet­ter sensitivity especially at higher code rate. Time domain synchronized orthogonal frequency division multi­plexing (TDS-OFDM ) is implemented to deliver fast system synchronization and precise channel estimation.

The DTMB (CTTB) measurement ap­plication gives more convenience to your DTMB (CTTB) system develop­ment and manufacturing, including both multi-carrier and single-carrier schemes with one-button measure­ments including standard presets and remote SCPI programming capabili­ties on X-Series signal analyzers

The RF transmitter test requirements for DTMB transmitter and exciter are defined in GY/T 229.4 2008 and GY/T 229.2 2008 standards. Table 1 shows RF transmitter and exciter tests defined by the specification along with the corresponding measure­ments provided by the DTMB (CTTB) measurement application

All of the RF transmitter measure­ments as defined by the DTMB (CTTB) standard, as well as a wide range of additional measurements and analysis tools, are available with a press of a button (Table 2). These measurements are fully remote con­trollable via the IEC/IEEE bus or LAN, using SCPI commands.

Analog baseband measurements are available on the PXA or MXA signal analyzer equipped with BBIQ hardware. Supported baseband mea­surements include all of the modula­tion quality plus I/Q waveform and CCDF measurements

×

Please have a salesperson contact me.

*Indicates required field

Preferred method of communication? *Required Field
Preferred method of communication? Change email?
Preferred method of communication?

By clicking the button, you are providing Keysight with your personal data. See the Keysight Privacy Statement for information on how we use this data.

Thank you.

A sales representative will contact you soon.

Column Control DTX