Offset - Keysight x-series User Reference Manual

Example
Notes
Preset
State Saved
Range
Min
Max
Initial S/W Revision
This is an alternate form of the SCPI that allows input as a power instead of a ratio.
Remote Command
Example
Range
Min
Max
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 reaching 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
EMI Receiver Mode Reference
Set the attenuation for the current I probe to 100.00:1.
CORR:IQ:I:ATT:RAT 100
Each probe type has its own attenuation setting. As probes are changed the attenuation value will
reflect the new probe's setting. Changing the attenuation affects only the current probe type's setting
and leaves all others unchanged.
When the IQ Path is I+jQ, the Q probe attenuation setting must match the I Probe attenuation setting
within 1 dB. If this is not the case, an error condition message is generated, 159;Settings Alert;I/Q
mismatch:Attenuation.
Each probe type has its own default. The default for the "Unknown" probe type is 1:1.
Saved with probe calibration data. It survives a power cycle and is not affected by a Preset or
Restore.
0.001 to 10000
0.001
10000
Prior to A.02.00
[: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
–60 dB
+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
4 Input/Output Functions
Input/Output
173