White Gaussian Noise Generator – WGN Series


  • 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 utilizes 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 characterization
    • Channel impairment tests

    • On/off control of both the signal path and the noise output
    • 60 dB noise power range, typically -103 dBm/Hz to -163 dbm/Hz
    • Frequency range 100 – 3000 MHz


    Output Type Calibrated White Gaussian Noise
    Crest Factor 15 dB Minimum, 18dB typical
    Attenuation Range 0 to 60 dB
    Attenuation resolution 0.016 dB
    Attenuation Accuracy 0.2 dB relative
    Power Spectral Density Density uncertainty:
    < 0.5 dBm/Hz
    50 ohms
    < 1.5 : 1
    Type N (female)
    Control and Interface Local Interface:
    Color touch sensitive, front panel keypad display, & softkeys
    Remote Interface:
    Ethernet & IEEE-488.2
    10 states
    Primary Power Voltage:
    90-264 VAC autoranging
    48-66 Hz
    100 VA, maximum
    2A, slow blow
    Physical Ambient Operating Temp:
    0° to 50° C
    10″ W x 4″ H x 10.5″ D