Instrument Function
R&S
®
SMBV100A
455Operating Manual 1176.8016.02 ─ 17
"Digital I/Q In"
Estimates the sample rate on the digital I/Q input and displays the
value in the value field.
Note: Estimation works best if the sample rate is close to the user
defined value.
Remote command:
[:SOURce<hw>]:BBIN:SRATe:SOURce on page 721
Sample Rate Value
Sets the sample rate of the external digital baseband input signal.
Remote command:
[:SOURce<hw>]:BBIN:SRATe[:ACTual] on page 721
FIFO Status
Digital Input only
Indicates the state of the signal transmission.
Note: The FIFO status is a SCPI parameter that is not displayed in the GUI.
"OK"
Resampling is working properly.
"OFL = Over-
flow"
The external sample rate frequency is too high which causes an over-
flow in signal transmission.
"URUN =
Underrun"
The external sample rate frequency is too low which causes an
underrun in signal transmission.
Remote command:
[:SOURce<hw>]:BBIN:SRATe:FIFO[:STATus]? on page 721
Baseband Input Level
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 internal sig-
nal processing in the R&S SMBV. They can also be automatically estimated by a mea-
surement using the "Auto Level Set" button.
DIG IQ Auto Setting
Activates automatic adjustment of the baseband input signal.
The R&S SMBV receives Peak Level, level and crest factor values directly from the
connected transmitter and recognizes changes automatically.
See also "Fulfilling the prerequisites for a correct signal processing of the externally
supplied baseband signal" on page 452.
External Baseband Signal - Baseband Input
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