Agilent Technologies X Series Manual page 428

Input/Output
Calibrate
Invokes the guided probe calibration. The guided probe calibration is context sensitive and depends on
the channel (I or Q) and the Differential Input state. The calibration is only performed on the selected
channel. When Differential Input is on, both the probe attached to the main port and the probe attached to
the complementary port are calibrated. When Differential Input is off, only the probe attached to the
main port is calibrated. See
Key Path
Readback Text
Initial S/W Revision
Clear Calibration
Clears the calibration data for the current port and probe. It does not clear the data for other probe types
or other ports. If the sensed probe has EEPROM identification, only the data for that specific probe is
cleared. After this command has completed, the probe calibration state will be the same as if no probe
calibration had ever been performed for the specified channel and probe. The probe attenuation will be
the default value for that probe type and the Cable Calibration frequency response corrections will be
used. This command is dependent on the Differential Input state. When Differential Input is on, both the
data for the probe attached to the main port and the data for the probe attached to the complementary port
are cleared. When Differential Input is off, only data for the probe attached to the main port is cleared.
Key Path
Remote Command
Example
Initial S/W Revision
Reference Z
Sets the value of the impedance to be used in converting voltage to power for the I and Q channels. This
does not change the hardware's path impedance (see
Key Path
Remote Command
428
"I/Q Guided Calibration" on page
Input/Output, I/Q, I Setup | Q Setup, I Probe | Q Probe, Coupling
The last calibration date, or if no calibration exists, "(empty)".
Last: <cal date>
<cal time>
Example:
Last: 8/22/2007
1:02:49 PM
Prior to A.02.00
Input/Output, I/Q, I Setup | Q Setup, I Probe | Q Probe
:CALibration:IQ:PROBe:I|Q:CLEar
Clear the calibration data for the I channel and the current probe (with
EEPROM identification) or probe type (without EEPROM identification).
:CAL:IQ:PROBe:I:CLE
Prior to A.02.00
Input/Output, I/Q
:INPut:IMPedance:REFerence <integer>
:INPut:IMPedance:REFerence?
470.
"I Input Z" on page 419).