Agilent Technologies X Series Manual page 426

Input/Output
Remote Command
Example
Range
Initial S/W Revision
Offset
Some active probes have DC offset capability. When one of these probes is connected this control will be
visible. The signal is adjusted for the DC offset before entering the analyzer's port. This allows for
removal of a DC offset before hitting the analyzer's input port voltage limits. For example, a signal that
varies 1 V peak-to-peak with a DC offset equal to the analyzer's max input voltage would exceed the
input limits of the analyzer for half its cycle. Removing the DC offset allows the analyzer to correctly
process the entire signal.
Key Path
Remote Command
Example
Notes
Preset
State Saved
Range
Initial S/W Revision
Coupling
Some probe types allow coupling to reject low frequencies. This will filter out the DC component of a
signal that is composed of a DC bias plus some AC signal. This control is visible only for probe types
that have this capability.
Key Path
Remote Command
426
[:SENSe]:CORRection:IQ:I|Q:ATTenuation <rel_ampl>
[:SENSe]:CORRection:IQ:I|Q:ATTenuation?
Set the attenuation for the current I probe type to 100.00:1.
CORR:IQ:I:ATT 20 dB
–60 dB to +80 dB
Prior to A.02.00
Input/Output, I/Q, I Setup | Q Setup, I Probe | Q Probe
:INPut:OFFSet:I|Q <voltage>
:INPut:OFFSet:I|Q?
Remove a DC offset of –0.5 V from the I channel input.
INP:OFFS:I –0.5
Only some probe types support Offset. For those that do, each probe type has
its own Offset setting. As probes are changed the Offset value will reflect the
new probe's setting. Changing the Offset affects only the current probe type's
setting and leaves all others unchanged.
0 V
Saved with probe calibration data. It survives power cycle and is not affected
by Preset or Restore.
–18 V to +18 V
Prior to A.02.00
Input/Output, I/Q, I Setup | Q Setup, I Probe | Q Probe
:INPut:COUPling:I|Q DC|LFR1|LFR2
:INPut:COUPling:I|Q?