Baseband Input Level - R&S SGT100A User Manual

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R&S SGT100A

Baseband Input Level

► To access this dialog, select "SGMA-GUI > Instrument Name > BB Input > Digital
BB In > Sample Rate".
The crest factor and the peak power of the external baseband signal are entered in
the section "Baseband Input Level". These values are necessary for a correct inter-
nal signal processing in the R&S SGT. They can also be automatically estimated
by a measurement using the "Auto Level Set" button.
DIG IQ Auto Setting
Activates automatic adjustment of the baseband input signal.
The R&S SGT receives peak level, level and crest factor values directly from the con-
nected transmitter and recognizes changes automatically.
Remote command:
[:SOURce<hw>]:BBIN:DIGital:ASETting:STATe
Measurement Period
Sets the recording duration for measuring the baseband input signal by "Auto Level
Set". For accurate level measurements, the measurement period should be set to a
time value that is long enough to capture several periods of the input signal.
Remote command:
[:SOURce<hw>]:BBIN:MPERiod
Auto Level Set
Starts measuring the input signal. The measurement estimates the crest factor, the
peak power and the rms power. The estimated values are automatically entered into
the input fields "Crest Factor", "Peak Level" and "Level". Using these estimated values
the internal gain control adjusts the input signal gain to achieve an optimal dynamic
range.
User Manual 1176.8674.02 ─ 07
Signal Generator Settings
External Baseband Signal - Baseband Input
on page 401
on page 403
240