Rohde & Schwarz SMBV100B - Page 276

Adding Noise and Predistortions, and Impairing the Signal
R&S
®
SMBV100B
274User Manual 1178.4460.02 ─ 03
Positive values mean that the Q vector is amplified more than the I vector by the corre-
sponding percentage. Negative values have the opposite effect.
For more information, see:
●
Chapter 4.2.2.1, "Gain and Gain Imbalance", on page 269
●
"To optimize sideband suppression" on page 275
Remote command:
For analog impairments: [:SOURce<hw>]:IQ:IMPairment:IQRatio[:
MAGNitude] on page 804
For digital impairments:
[:SOURce]:BB:IMPairment:IQOutput<ch>:IQRatio[:MAGNitude]
on page 804
[:SOURce]:BB:IMPairment:RF<ch>:IQRatio[:MAGNitude] on page 804
Quadrature Offset
Sets the quadrature offset.
For more information, see:
●
Chapter 4.2.2.3, "Quadrature Offset", on page 271
●
"To optimize sideband suppression" on page 275
Remote command:
For analog impairments: [:SOURce<hw>]:IQ:IMPairment:QUADrature[:
ANGLe] on page 805
For digital impairments:
[:SOURce]:BB:IMPairment:IQOutput<ch>:QUADrature[:ANGLe]
on page 805
[:SOURce]:BB:IMPairment:RF<ch>:QUADrature[:ANGLe] on page 805
Skew
In the "I/Q Modulator or I/Q Analog > Digital Impairments" dialog, sets a delay between
the Q vector and the I vector of the corresponding stream.
Remote command:
[:SOURce]:BB:IMPairment:IQOutput<ch>:SKEW on page 805
[:SOURce]:BB:IMPairment:RF<ch>:SKEW on page 805
IQ Delay
In the "I/Q Modulator or I/Q Analog > Digital Impairments" dialog, sets the time delay of
both I and Q vectors relative to the selected trigger and marker.
A positive value means that the I and Q vectors delay relative to the marker/trigger and
the other way around.
See also Chapter 8.3.1, "Connecting Multiple Instruments in Master-Slave Mode",
on page 428.
Remote command:
[:SOURce]:BB:IMPairment:IQOutput<ch>:DELay on page 803
[:SOURce]:BB:IMPairment:RF<ch>:DELay on page 803
Phase Offset
Adds an additional phase offset after the stream mapper.
Impairing the Signal