R&S ZC Series, Getting Started

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Basic operation
R&S
®
ZCxxx
34 Getting Started 1177.5156.02 ─ 05
6.6 System error correction
For precise S-parameter measurements, a system error correction is recommen-
ded. System error correction requires a calibration kit for the waveguide band of
the specific R&S
ZCxxx converter.
The (universal data of the) R&S ZVA-WRxx kits are pre-installed in the R&S ZNA
firmware. They are assigned, however, to R&S WM-xxxx connectors, as far as
the WRxx waveguide bands are identical to the newer WM-xxxx bands. In addi-
tion to these kits, dedicated R&S
ZC-WM-xxxx kits are provided for the WM-xxxx
bands. Their characteristic data are supplied on USB sticks, and must be installed
manually, before they can be used. The standards in these calibration kits allow
for OSM, TOSM, UOSM, TOM, TRM and TRL calibrations.
With an additional reference receiver calibration at one of the converter
ports, a full n-port system error correction at n > 1 converter ports of the
same waveguide band can be extended to a SMARTerCal. A SMARTerCal
enables phase
and level accurate measurements of all involved a- and b-
waves.
Refer to the documentation of your calibration kit and to the R&S ZNA help sys-
tem or user manual for details.
6.7 Measurement
After power calibration and system error correction, mount the DUT (see "Mount-
ing a DUT" on page 14).
Measurements involving converters can be performed like other measurements.
All measured quantities (S parameters, wave quantities, ratios etc.) are available.
Power sweeps and ALC can only be activated, if leveling data are available (see
Chapter 6.5, "Scalar power calibration and leveling (optional)" , on page 30). The
"Port Settings" dialog (Channel – [Channel Config] key > "Port Config" tab > "Port
Settings ...") shows the frequency and power sweep ranges of all implied signals,
including RF IN, LO IN and IF output.
Refer to the R&S ZNA help system or user manual for details.
Measurement