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R&S AFQ100A
Output Block
1401.3084.32 4.59
E-3
Offset (positive)
I OUT BAR
I OUT
Level
EMF
0 V
- 4 V
max
Bias (negative)
Remote-control command:
SOUR:OUTP:ANAL:TYPE BAL
Alias remote-control command:
SOUR:OUTP:TYPE BAL
Unbalanced
The unbalanced analog output at
I
and
Q
is selected.
A bias between I/Q OUT and ground can be defined.
Remote-control command:
SOUR:OUTP:ANAL:TYPE UNB
Alias remote-control command:
SOUR:OUTP:TYPE UNB
Amplitude
Sets the maximum output voltage for both signal components
(balanced or unbalanced). Small differences at the inputs can be
taken into account via impairment settings.
Balanced Output:
Value range: 0 ... 1.5 Volt open-circuit voltage.
Unbalanced Output:
Value range: 0 ... 0.75 Volt peak-peak.
Remote-control commands:
SOUR:OUTP:ANAL:BAL:AMPL 1.50
SOUR:OUTP:ANAL:UNB:AMPL 0.75
Amplitude Mode
Selects the amplitude mode. Two modes are possible,
Electronic
or
Attenuators
. They determine how precise the signals will be adjusted.
Electronic
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.
Remote-control command:
SOUR:OUTP:ANAL:AMOD ELEC
Attenuators
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).
Remote-control command:
SOUR:OUTP:ANAL:AMOD ATT