Instrument Function
R&S
®
SMU200A
383Operating Manual 1007.9845.32 ─ 15
The waveform information displayed in this dialog depends on whether the selected
waveform file is a multi segment one or not. All parameters are read-only.
For non-multi segment waveform files, the values of the settings can be queried by means
of the Tag commands (see chapter 7.3, "R&S Signal Generator Waveform and List For-
mat", on page 496).
SCPI command:
n.a.
HDD Streaming
Enables/disables the streaming of modulation data direct form the hard drive (HDD).
HDD streaming is recommended for processing of large files that require more ARB
memory than the currently installed one.
HDD Streaming is enabled for waveform with"Clock Freq." <= 1 MHz and "Number of
Samples" > 16 MS.
SCPI command:
[:SOURce<hw>]:BB:ARB:WAVeform:HDDStreaming:STATe on page 613
Streaming Buffer
(enabled for waveform with "Clock Freq." <= 1MHz and "Number of Samples" > 16MS)
Displays the filling level of the streaming buffer.
During normal operation, the streaming buffer level should have a value of 90% .. 100%.
Buffer level around 0% indicates a buffer underrun and the signal processing will be
interrupted.
Adjustment in the parameter value or state usually results in short decreasing of the
streaming buffer level but this buffer state should not be misunderstood as buffer under-
run.
SCPI command:
[:SOURce<hw>]:BB:ARB:WAVeform:HDDStreaming:BLEVel on page 613
Clock Frequency
Displays or enters the ARB output clock rate.
When the waveform file is loaded, this value is automatically set to the clock rate defined
in the file (Clock tag). The user can subsequently alter the value if necessary.
Baseband Signal - Baseband Block
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