Rohde & Schwarz SMW200A - Page 427

Simulating Fading, Adding Noise and Predistortions, and Impairing the Signal
R&S
®
SMW200A
412User Manual 1175.6632.02 ─ 16
Remote command:
For analog impairments: [:SOURce<hw>]:IQ:IMPairment:IQRatio[:
MAGNitude] on page 1012
For digital impairments:
[:SOURce]:BB:IMPairment:BBMM<ch>:IQRatio[:MAGNitude] on page 1012
[:SOURce]:BB:IMPairment:FADer<ch>:IQRatio[:MAGNitude] on page 1012
[:SOURce]:BB:IMPairment:IQOutput<ch>:IQRatio[:MAGNitude]
on page 1012
[:SOURce]:BB:IMPairment:RF<ch>:IQRatio[:MAGNitude] on page 1012
Quadrature Offset
Sets the quadrature offset.
For more information, see:
●
Chapter 5.3.2.3, "Quadrature Offset", on page 408
●
"To optimize sideband suppression" on page 413
Remote command:
For analog impairments: [:SOURce<hw>]:IQ:IMPairment:QUADrature[:
ANGLe] on page 1013
For digital impairments:
[:SOURce]:BB:IMPairment:BBMM<ch>:QUADrature[:ANGLe] on page 1013
[:SOURce]:BB:IMPairment:FADer<ch>:QUADrature[:ANGLe] on page 1013
[:SOURce]:BB:IMPairment:IQOutput<ch>:QUADrature[:ANGLe]
on page 1013
[:SOURce]:BB:IMPairment:RF<ch>:QUADrature[:ANGLe] on page 1013
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.
If a R&S SGT is connected to one of the digital interfaces, digital impairments are
applied in the connected instrument (see Figure 3-12).
Remote command:
[:SOURce]:BB:IMPairment:BBMM<ch>:SKEW on page 1014
[:SOURce]:BB:IMPairment:FADer<ch>:SKEW on page 1014
[:SOURce]:BB:IMPairment:IQOutput<ch>:SKEW on page 1014
[:SOURce]:BB:IMPairment:RF<ch>:SKEW on page 1014
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.
If a R&S SGT is connected to one of the digital interfaces, digital impairments are
applied in the connected instrument (see Figure 3-12).
See also Chapter 9.3.1, "Connecting Multiple Instruments in Master-Slave Mode",
on page 608.
Impairing the Signal