Keysight M8000 Series of BER Test Solutions User Guide 211
User Interface - M8020A Display Views 4
• Offset – Sets the offset of the output signal.
• Amplitude Correction Factor – Sets the amplitude correction factor.
The Amplitude Correction Factor parameter is not included in the
coupling and so it can be set independently on each coupled
channels.
• Sinusoidal Interference – This functional block allows you to set Tone
Mode, Frequency, Amplitude and Phase for individual signal (1/2). It
has the following parameters:
• Tone Mode (1/2): Sets the tone mode of the output signal. The
available options are:
• Off – In this case, the selected tone mode is will not participate.
• Common Mode – In this case, Common Mode Sinusoidal
Interference will be generated using non-inverted port of
coupled channels.
• Differential Mode – In this case, Differential Mode Sinusoidal
Interference will be generated using non-inverted port of
coupled channels.
• Amplitude (1/2): Sets the amplitude of selected tone (1/2). Please
note that the value of Amplitude 1 will also reflect in the Amplitude
parameter of the Amplifier functional block. The total amplitude
across both tones must be between 0 to 995 mV.
• Frequency (1/2): Sets the frequency of the selected tone (1/2).
• Phase (1/2): Sets the phase of the selected tone (1/2).
AWG as External Level Interference (RI/SI) Source
The Keysight M8195A and M8196A AWG can be used as external level
interference source with sinusoidal and random modulation. For this you
need to select ‘Random Interference’ or ‘Sinusoidal Interference’ from the
M8195A and M8196A configuration dialog. For more details on the
M8195A and M8196A configuration dialog, refer to M8195A Configuration
on page 204 and M8196A Configuration on page 206. The M8070A system
software allows controlling interference parameters such as amplitude,
highest frequency, lowest frequency and crest factor. Keysight provides a
matched directional coupler pair (orderable option M8045-802) for
injecting the RI or SI signal before or after the channel. Specifications for
external level interference sources RI/SI with M8195A, M8196A can be
found in M8040A data sheet.
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