R&S AFQ100A
AFQ Commands - Signal Generation
1401.3084.32 6.57
E-3
[SOURce:]OUTPut:ANALog<CH>:AMODe
ELECtronic | ATTenuators
The command sets the amplitude mode. Two of them are possible, Electronic or Attenuators. They
determine how precise the signals will be adjusted.
Using the
Electronic
mode, the instrument generates signal amplitudes by scaling the waveforms.
The adjustment can be performed very fast. The
level resolution is low
if a small signal amplitude
(<< 1V) is selected.
Using the
Attenuators
mode, the instrument generates signal amplitudes by applying a gauge
circuit to the waveforms. The instrument switches a relay. The adjustment takes some time. The
level resolution is high
, especially for small signal amplitudes (<< 1V).
Example:
OUTP:ANAL:AMOD ATT
'the instrument generates signal amplitudes by applying a gauge circuit.
*RST value
Resolution
Options
SCPI
ELECtronic -
Device-specific
[SOURce:]OUTPut:ANALog<CH>:BALanced:AMPLitude
0 ... 1.5 V
The command sets the maximum output voltage for the balanced signal. Small differences at the
inputs can be taken into account via the impairment settings offset and bias.
Example:
OUTP:ANAL:BAL:AMPL 1.234V
'sets the maximum output voltage of the analog output to 1.234 V.
*RST value
Resolution
Options
SCPI
1 V
0.001 V
Device-specific
[SOURce:]OUTPut:ANALog<CH>:BALanced:BIAS
-2.5 V ... +2.5 V
The command sets the bias. A DC voltage is superimposed upon the symmetric I and Q signal.
Example:
OUTP:ANAL:BAL:BIAS -2.5V
'sets a DC offset of -2.5 V.
*RST value
Resolution
Options
SCPI
0
0.01 V
Device-specific
[SOURce:]OUTPut:ANALog<CH>:BALanced:BIAS:STATe
ON | OFF
The command switches on/off the bias amplifier.
Example:
OUTP:ANAL:BAL:BIAS:STAT ON
'switches on the bias amplifier.
*RST value
Resolution
Options
SCPI
OFF
Device-specific