Communication Systems

Satellite Test Equipment

White Gaussian Noise Generator (WGN)

White Gaussian Noise Generator (WGN)

The WGN outputs very accurate, high quality white Gaussian noise. The output level can be set as Noise Density or Noise Power in a selectable bandwidth. Factory calibration over the entire frequency range yields 0.25 dB absolute accuracy. The noise power can be varied with 0.015 dB resolution over a 60 dB range. A user-supplied signal can be injected into the instrument to combine with the noise. The instrument utilises dBm's proprietary microprocessor controlled attenuator with 0.015 dB resolution, providing an extremely accurate output.


  • Bit error rate and SINAD testing
  • Modem and receiver characterisation
  • Channel impairment tests
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