Rohde & Schwarz SMU200A - Page 680

Remote Control Commands
R&S
®
SMU200A
660Operating Manual 1007.9845.32 ─ 15
[:SOURce<hw>]:BB:IMPairment:QUADrature[:ANGLe]......................................................667
[:SOURce<hw>]:BB:IMPairment:STATe...........................................................................667
[:SOURce<hw>]:BB:IMPairment:IQRatio <Iqratio>
This command sets the ratio of I modulation to Q modulation (amplification “imbalance”).
The input may be either in dB or %. The resolution is 0.001 dB, an input in percent is
rounded to the closest valid value in dB. A query returns the value in dB.
Parameters:
float
-1 dB to 1 dB
0.001 dB
0 dB
<Iqratio>
Range:
Increment:
*RST:
BB:IMP:IQR 3 PCT
sets the imbalance to 3 percent.
BB:IMP:IQR?
queries the imbalance.
Response: 0.259000
the value is returned in dB
BB:IMP:IQR 1
sets the imbalance to 1 dB.
Example:
[:SOURce<hw>]:BB:IMPairment:LEAKage:I <I>
This command sets the carrier leakage amplitude for the I-signal component.
Parameters:
float
-10 to 10
0.05
0
PCT
<I>
Range:
Increment:
*RST:
Default unit:
BB:IMP:LEAK:I 3 PCT
sets the leakage for the I-component to 3 percent.
Example:
[:SOURce<hw>]:BB:IMPairment:LEAKage:Q <Q>
This command sets the carrier leakage amplitude for the Q-signal component.
Parameters:
float
-10 to 10
0.05
0
PCT
<Q>
Range:
Increment:
*RST:
Default unit:
SOURce Subsystem