z8651 VSA

6 GHz Vector Signal Analyzer

The z8651 Vector Signal Analyzer (VSA) covers frequency ranges from DC to 6 GHz. This VSA provides the signal fidelity and real-time processing capabilities that enable a broad set of necessary RF and wireless test techniques, such as performing EVM (error vector magnitude), ACLR (adjacent channel leakage ratio) and IM3 (3rd-order intermodulation distortion) measurements or addressing complex MIMO applications.

The z8651 provides the combination of high instantaneous bandwidth, high dynamic range, very high linearity and very low phase noise necessary to test and characterize the latest and next generation of wireless components.


VSA Optimized for Wireless Testing

  • VSA provides functionality of one-box multi-protocol tester in modular PXI/PXIe architecture
  • 6 GHz RF Spectrum and VSA for analog or digitally-modulated RF signal analysis
  • Separate baseband I/Q inputs and LO input for demodulator RFIC testing

Future Proof Technical Specifications

  • 160 MHz instantaneous bandwidth for new wireless standards such as 802.11ac
  • High linearity with >80 dBc IM3 @ 6 GHz
  • Very low Displayed Average Noise Level of -163.5 dBm/Hz @ 6 GHz
  • Low EVM floor of 0.45% or -47 dB (802.11ac 80 MHz, preamble only estimation)
  • Real-time on-instrument FPGA and DSP processing for test time speed and ease of use

Small-Footprint Software-Defined Modular Instrument

  • Combined RF and baseband I/Q VSA in 2-slot 3U PXI/PXIe modular instrument
  • Perfect for MIMO applications (up to 4×4 true MIMO in a single zSeries 18-Slot Chassis)

Better Software Integration Tools and Support

  • Full-featured zSignal™ Spectrum Analyzer GUI
  • Demodulation software for wireless standards such as WLAN, Cellular, Zigbee and others
  • Comprehensive and intuitive software drivers for C/C++, LabVIEW and COM


  • IEEE 802.11ac compliance testing
  • LTE-A compliance testing
  • MIMO testing