Instrument Function
R&S
®
SMBV100A
322Operating Manual 1176.8016.02 ─ 17
The level entry fields and the corresponding unit are displayed in the status bar. The
level display always refers to both signal components (SQR(I
2
+Q
2
)).
Remote command:
[:SOURce<hw>]:IQ:OUTPut:DIGital:POWer:LEVel on page 754
5.8.4 User Variation
If the level is set using the rotary knob, the step width is defined in the User Variation
section.
Variation Active - Digital I/Q Out
Activates the user-defined step width that is used by varying the level value with the
rotary knob.
"On"
The level value set with the rotary knob is varied using the user-
defined step width which is entered under "Variation Step".
"Off"
The level value set with the rotary knob is varied in steps of one unit
at the cursor position (standard operating mode).
Remote command:
[:SOURce<hw>]:IQ:OUTPut:DIGital:POWer:STEP:MODE on page 756
Variation Step - Digital I/Q Out
Sets the user defined step width for entering the level value using the rotary knob.
Level variation with this step width must be activated with "Variation Active ON".
Remote command:
[:SOURce<hw>]:IQ:OUTPut:DIGital:POWer:STEP[:INCRement] on page 755
5.8.5 Signal Monitoring
The section "Signal Monitoring" indicates digital signal clipping.
Overflow - Digital I/Q Out
Indicates that the I/Q output signal is currently clipped. This indication also appears in
the block diagram close to the digital I/Q Out connector.
Overload may occur, e.g. if the level of the output signal, or the noise level (AWGN)
are too high.
Remote command:
[:SOURce]:IQ:OUTPut:DIGital:OFLow:STATe? on page 754
Overflow Hold - Digital I/Q Out
Indicates an overflow since last reset.
The overflow hold state can be reset via the "Reset" button next to the LED, or is reset
automatically by starting a new signal generation or by setting new values to the output
level.
Remote command:
[:SOURce]:IQ:OUTPut:DIGital:OFLow:HOLD:STATe? on page 753
Digital I/Q Output Settings
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