Rohde & Schwarz SMBV100A, Operating Manual

Page: 706 / 911

Remote Control Commands
R&S
®
SMBV100A
691 Operating Manual 1176.8016.02 ─ 17
Parameters:
<Q> float
Range:
-10 to 10
Increment: 0.01
*RST:
0
Default unit: PCT
Example: BB:IMP:LEAK:Q 3 PCT
sets the leakage for the Q-component to 3 percent.
Manual operation: See "I/Q Offset - Digital Impairments" on page 306
[:SOURce<hw>]:BB:IMPairment:QUADrature[:ANGLe] <Angle>
This command sets the quadrature offset for the digital I/Q signal.
Parameters:
<Angle> float
Range:
-10 to 10
Increment: 0.01
*RST:
0
Default unit: DEG
Example: BB:IMP:QUAD:ANGL -5DEG
sets the quadrature offset to -5 degrees.
Manual operation: See "Quadrature Offset - Digital Impairments" on page 307
[:SOURce<hw>]:BB:IMPairment:SKEW <Skew>
Sets the time offset between the I and Q vectors.
In an I/Q modulator without I/Q skew, the I and Q vectors are aligned to the marker.
With an I/Q skew, both vectors are shifted relative to the marker so that the offset of
each of the vectors to the marker will be the half of the I/Q skew value.
A positive I/Q skew means that the Q vector delays relative to the I vector and vice
versa.
Parameters:
<Skew> float
Range:
-500E-9 to 500E-9
Increment: 1E-12
*RST:
0
Example: BB:IMP:SKEW 410.0E-9
sets the I/Q skew.
Manual operation: See "I/Q Skew - Digital Impairments" on page 307
SOURce Subsystem