Keysight M8194A - Page 53

Keysight M8194A 120 GSa/s Arbitrary Waveform Generator User Guide 53
M8194A Soft Front Panel 3
Additional Waveform Parameters Section
• Preamble Length
The duration of a DC section before the defined Standard waveform
starts.
• Preamble Level
The level for the DC section before the defined Standard waveform
starts. Acceptable range for this parameter is -1/+1, being the full
dynamic range of the instrument’s DAC.
• Postamble Length
The duration of a DC section after the defined Standard waveform
stops.
• Postamble Level
The level for the DC section after the defined Standard waveform stops.
Acceptable range for this parameter is -1/+1, being the full dynamic
range of the instrument’s DAC.
• Keep Periods
This check box is only available when “Keep Sample Rate” is selected.
When this option is selected, the waveform calculation algorithm
preserves the user-defined number of periods.
• Set WL to Max
This check box is only available when “Keep Sample Rate” is selected.
When this option is selected, the waveform calculation algorithm
always takes the maximum waveform length as defined in the “Max.
Wfm. Length”. As the waveform length must always be identical for all
four channels, it is recommended to check the “Set WL to Max” box in
case different waveforms shall be downloaded to different channels.
• Periods
The number of repetition of single periods of the standard waveform
within the target segment. This parameter is set automatically when
Frequency is changed and preamble and postamble lengths are set to
zero in order to obtain the best timing accuracy and meet the record
length granularity requirements.
• Waveform Length
The length in samples of the resulting segment. It may be set within
acceptable limits and it may be calculated automatically to properly
implement other signal and instrument parameters such as sampling
rate.