Arb Commands
Dmodulation Subsystem–N5172B/82B with Option 431
([:SOURce]:RADio:DMODulation:ARB)
[:SOURce]:RADio:DMODulation:ARB:MODulation:UQPSk[:GAIN]
<val>
[:SOURce]:RADio:DMODulation:ARB:MODulation:UQPSk[:GAIN]?
This command sets the Unbalanced QPSK modulation I versus Q gain, which is
the difference in amplitude between I and Q. UQPSK is a 2 bits per symbol
modulation where the I constellation values are typically set to be larger or
smaller than the Q constellation values. This factor is known as the I Gain. Use
this command when the :MODulation[:TYPE] is set to UQPSk.
The variable <val> is expressed in units of dB and the resolution is 0.01 dB.
:MPOLarity:MARKer1|2|3|4
[:SOURce]:RADio:DMODulation:ARB:MPOLarity:MARker1|2|3|4
NEGative|POSitive
[:SOURce]:RADio:DMODulation:ARB:MPOLarity:MARKer1|2|3|4?
This command sets the polarity for the selected marker. For a positive marker
polarity, the marker signal is high during the marker points. For a negative
marker polarity, the marker signal is high during the period of no marker
points.
Key Entry
:NOISe:BANDwidth
[:SOURce]:RADio:DMODulation:ARB:NOISe:BANDwidth
<value><unit>
[:SOURce]:RADio:DMODulation:ARB:NOISe:BANDwidth?
This command selects the flat noise bandwidth value of the real–time noise for
an ARB waveform.
Typically, this value is set slightly wider than the carrier bandwidth.
Range
Keysight EXG and MXG X-Series Signal Generators SCPI Command Reference
*RST
0 dB
Range
-50 to 50 dB
Key Entry
I Gain
Supported
N5172B/82B with Option 431
*RST
POS
Marker 1 Polarity Neg
Pos
Marker 3 Polarity Neg Pos
Supported
N5172B/82B with Option 431 and 403
*RST
+1.00000000E+000
Option 653
Marker 2 Polarity Neg
Pos
Marker 4 Polarity Neg Pos
1 sa to 75 Msa
319
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