6 Input/Output
6.2 Input
The I/Q Isolation Calibration must be run before calibrating any port with either the
I/Q Cable Calibration or I/Q Probe Calibration. See "I/Q Isolation Calibration" on
page 2174
Q Port
The Q port calibration is performed with the probe body attached to the front
panel's Q port and the probe tip connected via an adapter to the Cal Out port. The
guided calibration will show a diagram of the required connections.
Remote
Command
:CALibration:IQ:PROBe:Q
Example
:CAL:IQ:PROB:Q
Notes The Q port must be connected to the Cal Out port before issuing the command
The calibration data is saved as soon as the port is calibrated and survives power cycles. It is not reset
by any preset or restore data commands
State Saved No
Q Port Probe Calibration Time (Remote Query Only)
Return the last date and time that the I/Q Probe Calibration was performed for a
specific port.
Remote
Command
:CALibration:IQ:PROBe:Q:TIME?
Example
:CAL:IQ:PROB:Q:TIME?
Notes Returns 6 integer values: year, month, day, hour, minute, second. When no calibration has been
performed, all values are 0. The value is specific to both the port and probe, so the value will change as
probes are connected or disconnected
Annunciation Guided Calibration, Probe Calibration, Last Calibration
Q-bar Port
The Q-bar port calibration is performed with the probe body attached to the front
panel's Q-bar port and the probe tip connected via an adapter to the Cal Out port.
The Q-bar probe calibration is only available for passive probes with Differential On.
The guided calibration will show a diagram of the required connections.
Remote
Command
:CALibration:IQ:PROBe:QBar
Example
:CAL:IQ:PROB:QB
Notes The Q-bar port must be connected to the Cal Out port before issuing the command
Vector Modulation Analyzer Mode User's &Programmer's Reference 2182
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