N6156A DMTB Measurement Application

The N6156A is discontinued after June 1, 2019. The replacement model is the N6156EM0D X-Series Measurement Application with KeysightCare.

Signal analysis

• Supports DTMB (CTTB) standard of both multi-carrier (C=3780) and single-carrier (C=1) modes
• Transmitter RF measurement, analog baseband measurements with PXA BBIQ or MXA BBIQ hardware
• One-button measurements with pass/fail per the standard
• Runs inside PXA, MXA, and EXA signal analyzers

Measurements

• Power measurement: channel power, shoulder attenuation, ACP, CCDF, SEM
• Modulation accuracy measurement: constellation, MER/EVM (MER RMS/peak, MER by subcarriers, MER by data, system information, and header), frequency error, amplitude error, phase error, quadrature error, amplitude imbalance
• Channel frequency response, channel impulse response, and spectral flatness
• Manual settings of DTMB (CTTB) signal; provides advanced settings like equalization switch, demodulation frames, PN phase change, SI reference, out-of-band filtering, and clock rate

Performance (hardware dependent)

• Power accuracy: up to ±0.19 dB (95^th percentile)
• Shoulder attenuation dynamic range: up to 98.4 dB (103.7 dB typical)
• MER floor: up to 51 dB (C = 3780, PN420, and 16QAM with EQ off)
• Analysis bandwidth: PXA/MXA up to 160 MHz; EXA up to 40 MHz

Other features

• License key upgradable
• Fixed and transportable license available
• SCPI remote user interface

The DTMB (CTTB) measurement application is one of more than 25 measurement applications in the Keysight X-Series, an evolutionary approach to signal analysis that spans instrumentation, measurements, and software, transforming the X-Series signal analyzers into standards-based transmitter testers. The DTMB (CTTB) application provides fast, one-button standards-based power and modulation analysis capabilities to help your design, evaluation, and manufacturing of DTMB (CTTB) modulators, transmitters, amplifiers, tuners, and gap-fillers/repeaters. Using the optional analog baseband IQ inputs in the MXA signal analyzer, the DTMB (CTTB) application provides the flexibility to measure signal quality and modulation accuracy with RF input or analog IQ input.

RF transmitters, modulators, and components testing

• One-button measurement helps improves speed with standard presets
• Multiple modulation quality measurements help test the DUT’s full performance
• Advanced settings help R&D engineers with troubleshooting
• Remote SCPI commands increase the manufacturing test efficiency