RF Spectral Capture and Emulation

Complete end to end testing of complex signal processing systems as well as field testing of simple receivers are significantly benefitted by the ability to capture and playback or emulate real world environments. RF receiver testing requires complex hardware and software with the ability to generate signals at the limits of the receiver’s capabilities. At ADS we have developed a family of record and playback units for the range of the spectrum from below 20Hz to above 28Ghz. Our product offerings, under the umbrella of the Spectrum Defender Logo, range from single channel record or playback units to eight (8) multi-channel phase synchronized units extendable to 3, 64 channels and beyond to emulate complex environments for large signal processing systems. We combine National Instruments Hardware with a comprehensive Software Suite and RF Playback/Record Tool kit to create a COTS out of the box experience

Moving from the theoretical realm of mathematically-modeled and generated signals to hardware testing is an important step in the test process. Our solutions allows for these modeled and generated signals to be played on physical hardware at certain signal specifications to the RF receivers under test. This allows for a comparison between the modeled response and the actual response to ensure receiver fidelity.

ADS RF Record Playback and Spectral Emulation eliminate significant cost and time associated with field testing and systems integration


  • View incoming RF signals in the frequency domain (spectrum analyzer display)
  • Adjustable parameters:
    • Center Frequency
    • Span
    • Resolution Bandwidth
    • Display Averaging (None, RMS averaging, Peak Hold)
    • Amplitude Reference Level
  • Frequency Range: 9kHz to 2.7GHz
  • Analysis Bandwidth: 20MHz