Emerson R&S SGT100A User Manual page 464

®
R&S SGT100A
[:SOURce<hw>]:BB:IMPairment:LEAKage:Q <Q>
This command sets the carrier leakage amplitude for the Q-signal component.
Parameters:
<Q>
Example:
Manual operation:
[:SOURce<hw>]:BB:IMPairment:QUADrature[:ANGLe] <Angle>
This command sets the quadrature offset for the digital I/Q signal.
Parameters:
<Angle>
Example:
Manual operation:
[: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>
Example:
Manual operation:
User Manual 1176.8674.02 ─ 12
float
Range: -10 to 10
Increment: 0.01
*RST: 0
Default unit: PCT
BB:IMP:LEAK:Q 3 PCT
sets the leakage for the Q-component to 3 percent.
See "I/Q Offset" on page 159
float
Range: -10 to 10
Increment: 0.01
*RST: 0
Default unit: DEG
BB:IMP:QUAD:ANGL -5DEG
sets the quadrature offset to -5 degrees.
See "Quadrature Offset"
float
Range: -500E-9 to 500E-9
Increment: 1E-12
*RST: 0
BB:IMP:SKEW 410.0E-9
sets the I/Q skew.
See "Skew" on page 159
Remote control commands
SOURce subsystem
on page 159
464