Output Signal Parameters

Each channel has its own output signal parameters.

Output Waveform

There are 13 options available.

None

No signal will be generated, i.e. the output will be zero. No output frequency and output amplitude need to be specified.

Sine

Sinusoid waveform will be generated. Note that the above figure also illustrates the initial phase of the generated signal.

Rectangle

Rectangle waveform will be generated. Note that the above figure also illustrates the initial phase of the generated signal. The duty cycle of the rectangle wave can be specified (refer to the figure below).

Triangle

Triangle waveform will be generated. Note that the above figure also illustrates the initial phase of the generated signal.

Saw Tooth

Saw Tooth waveform will be generated. Note that the above figure also illustrates the initial phase of the generated signal.

White Noise

White Noise will be generated. White noise has an equal amount of energy per Hz of bandwidth. No output frequency needs to be specified.

Unlike most of the digital white noise generators in the market, which eventually repeat the same segment of white noise, the white noise generated here is "true" white noise without any form of repetition. This is very useful when you want to use averaging method to obtain the frequency response of a Device Under Test (DUT) with continuous white noise excitation.

The following figure illustrates the white noise generated by the software. It has a very flat amplitude spectrum (in dBV) in the range of 0 Hz ~1/2 sampling frequency.

The following figure is the 1/12 octave amplitude spectrum (in dBV) of the same white noise. It shows an incremental of 3dB per octave.

Pink Noise

Pink Noise will be generated. Pink noise has an equal amount of energy per octave of bandwidth. No output frequency needs to be specified.

Unlike most of the digital pink noise generators in the market, which eventually repeat the same segment of pink noise, the pink noise generated here is "true" pink noise without any form of repetition.

The following figure illustrates the pink noise generated by the software. Its amplitude spectrum (in dBV) shows a slope of -3dB/octave.

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