R&S ZNB - 5.5.7.1 Calibration Procedure; 5.5.7.2 Calibration Types; 5.5.7.3 Combining SMARTerCal with Scalar Power Calibration

Concepts and Features
R&S
®
ZNB/ZNBT
180User Manual 1173.9163.02 ─ 55
For an overview of measurements and recommended calibration methods refer to
Table 5-13.
5.5.7.1 Calibration Procedure
A SMARTerCal is a fully menu-guided process which is performed like a regular sys-
tem error correction. The calibration wizard defines the calibrated ports and the calibra-
tion type; it also initiates the calibration sweeps for all calibration standards. The cali-
bration sweep for the external power meter is performed in analogy to a sweep for a
one-port calibration standard. However, the analyzer uses the "Reference Receiver Cal
Power" setting from the scalar power calibration. The order of the system error correc-
tion and power calibration sweeps is arbitrary; ensure that you always connect the
proper equipment.
The R&S ZNB/ZNBT also supports a SMARTerCal based on the calibration units. The
calibration units provide the n-port system error correction data (TOSM or UOSM); a
subsequent power calibration sweep completes the calibration.
5.5.7.2 Calibration Types
Except for "Adapter Removal", the names of the SMARTerCal calibration types consist
of a prefix "P" (indicating the additional power calibration) plus the system error correc-
tion type. The R&S ZNB/ZNBT supports the SMARTerCal equivalent of all full n-port
system error corrections; an overview is shown below.
Table 5-15: SMARTerCal calibration types
SMARTerCal Type Based on ... Manual calibration Calibration unit
PTOSM TOSM
☑ ☑
PUOSM UOSM
☑ ☑
PTRL TRL
☑ ☐
PTOM TOM
☑ ☐
PTSM TSM
☑ ☐
PTRM TRM
☑ ☐
PTNA TNA
☑ ☐
P-Adapter Removal Adapter Removal
☑ ☐
The selection criteria for the SMARTerCal calibration types are identical to the criteria
for system error corrections. For an overview, refer to Chapter 5.5.1, "Calibration
Types", on page 148.
5.5.7.3 Combining SMARTerCal with Scalar Power Calibration
As described in Chapter 5.5.7, "SMARTerCal", on page 179, the power meter results of
a SMARTerCal are only used to calibrate the receivers of the R&S ZNB/ZNBT. To
Calibration