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N9054C VMA Vector Modulation Analysis X-Series Measurement Application, Multi-Touch

Technical Overviews

VMA Vector Modulation Analysis Measurement Application

The VMA vector modulation analysis measurement application transforms the X-Series signal analyzers with multi-touch into vector signal analyzers by providing a wide range of measurements, digital types, and filters to perform comprehensive signal analysis, helping you thoroughly test your designs, ensure product quality, and optimize without compromise.

X-Series measurement applications

X-Series measurement applications increase the capability and functionality of Keysight Technologies, Inc. signal analyzers to speed time to insight. They provide essential measurements for specific tasks in general-purpose, cellular communications, wireless connectivity applications, covering established standards or modulation types. Applica­tions are supported on both benchtop and modular, with the only difference being the level of performance achieved by the hardware you select.

Flexible digital modulation analysis

The flexible digital modulation analysis adds the capability to visualize system perfor­mance rapidly and intuitively. Teamed with an Keysight X-Series signal analyzer, you can increase the speed of your measurement tasks with the flexibility this option offers:

  • Support time domain measurement as I/Q waveform, spectrum measurement as monitor spectrum and modulation quality measurement as digital demod
  • Customize modulation analysis formats including: 2-16 FSK, BPSk, QPSK, 8PSK, 16-1024QAM, MSK, ASK, APSK, VSB etc.
  • A complete set of measurement traces and modulation quality results, including raw main time, I/Q measurement time, I/Q measurement spectrum, EVM vs. symbol time, EVM spectrum, constellation, channel frequency response, EQ impulse response, EVM average/peak, magnitude error, phase error, frequency error, clock error, I/Q offset, SNR, quadrature error, gain imbalance, Rho and demod bits
  • Convenient measurement preset to cover popular formats, including NADC, EDGE, PDC, PHS, DVB (16/32/64/256QAM), TETRA, APCO-25, DMR, dPMR, WiSUN (MR-FSK PHY), DECT, VDL Mode 2, MIL-STD CPM and SOQPSK-TG.

Testing when no commercial test standard is available

Testing proprietary and custom signals is a challenge. Turnkey test software for those signals is seldom available off-the-shelf, so you have to design and implement the tests yourself. The flexible digital modulation analysis option will help you with that task. It covers the various demands of “do it yourself” testing for single carrier, single modulation signals with a deep set of flexible modulation analysis tools that you can tweak to meet your needs. In addition, these flexible tools are SCPI programmable.

I/Q waveform RF envelope analysis

Figure 2 shows the I/Q waveform RF envelope measurement. Meas time, sample rate etc. parameters are settable and the measurement results like Mean power, Pk-To-Mean ratio, Max power and Min power are shown at the bottom of the screen.

Monitor spectrum

Figure 3 shows the spectrum measurement with monitor spectrum, which uses signal analyzer sweep mode with marker function band power turning on. Other spectrum measurements are also available like channel power, OBW, CCDF, ACP, SEM and spurious measurements.

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