R&S 1311.6010K22, User Manual

Page: 200 / 1611

Concepts and features
R&S
®
ZNB/ZNBT
200 User Manual 1173.9163.02 ─ 62
For an overview of measurements and recommended calibration methods refer to
Table 4-13 .
4.5.7.1 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.
4.5.7.2 Calibration types
The names of the SMARTerCal calibration types consist of a prefix "P" (indicating the
additional power calibration) plus the system error correction type. The R&S
ZNB/
ZNBT supports the SMARTerCal equivalent of all full n-port system error corrections;
an overview is shown below.
Table 4-15: SMARTerCal calibration types
SMARTerCal Type Based on ... Manual calibration Calibration unit
P-One Path Two Ports One Path Two Ports
☑ ☑
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 4.5.1, "Calibration
types" , on page 163.
4.5.7.3 Combining SMARTerCal with scalar power calibration
As described in Chapter 4.5.7, "SMARTerCal" , on page 199, the power meter results of
a SMARTerCal are only used to calibrate the receivers of the R&S ZNB/ZNBT. To
Calibration