R&S ZVB - Page 858

R&S
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ZVB / R&S
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ZVT Command Reference
SCPI Command Reference
Operating Manual 1145.1084.12 – 30 843
 If nothing is specified (empty string ' '), the factory cal kit file stored in the
active calibration unit is used.
 A NWA cal kit file name *.calkit without path denotes a specific cal kit file
stored in the active calibration unit.
 A NWA cal kit file name without path but prefixed with SD: refers to a
specific cal kit file stored on the SD card inserted at the active calibration
unit.
 A NWA cal kit file name *.calkit with path denotes a specific cal kit file
stored in an arbitrary directory.
<port_no>
Port numbers of the analyzer. For an n-port automatic calibration (n = 1 to 4), n
arbitrary (not necessarily consecutive) port numbers must be specified. The
analyzer automatically detects the calibration unit ports connected to each
analyzer port. For a one path two port calibration (OPTPort), the first port no.
denotes the node port (fully calibrated port). The transmission normalizations are
two-port calibrations.
*RST value
–
SCPI,
Command
Types
Device-specific, no query
Example:
CORR:COLL:AUTO:TYPE FNPort, '', 1, 2, 4
Perform an automatic full 3-port calibration at test ports 1, 2, and 4 using the
calibration unit's default calibration kit file and arbitrary test ports of the cal unit.
[SENSe<Ch>:]CORRection:COLLect:AUTO:VMIXer:ACQuire BASE | MIXer [,
<Dispersion>, AUTO | <delay | phase>]
This command allows the automatic automatic vector mixer calibration using a calibration unit. It is only
available in Vector Mixer Mode (SENSe:FREQuency:CONVersion VMIXer).
To prevent the LO power from being set to -10 dB during calibration, deactivate Automatic Power
Reduction for Calibration Unit (SYSTem:COMMunicate:RDEVice:AKAL:PREDuction[:STATe] OFF)
and ensure an input power below -10 dBm at the cal unit ports by other means.
The first part of the calibration (acquisition of one-port correction data using the calibration unit) is
performed using :SENSE<Ch>:CORRECTION:COLLECT:AUTO:VMIXer:ACQuire BASE. Like in manual
operation, the assignment between analyzer and calibration unit ports must be 1:1, i.e. analyzer ports 1
and 2 must be connected to calibration unit ports 1 and 2, respectively.
After connecting the reciprocal calibration mixer, the second part (acquisition of 2-port correction data) is
performed using :SENSE<Ch>:CORRECTION:COLLECT:AUTO:VMIXer:ACQuire MIXer [,
<Dispersion>, AUTO | <delay | phase>].
Finally, to apply the resulting error terms to the related channel, use the
:SENSE<Ch>:CORRECTION:COLLECT:AUTO:SAVE command. Keep the USB connection to the
calibration unit alive until then!
1. The cal sweeps (the first and second part of the calibration) can be performed in any
order.