R&S
®
ZVA / R&S
®
ZVB / R&S
®
ZVT GUI Reference
System Menu
Operating Manual 1145.1084.12 – 30 552
To perform the source power calibration, proceed as follows:
1. Ensure that the power control method of the related port is set to Electronic Attenuator only.
2. Connect the waveguide power meter and open the Channel – Calibration – Start Power Cal –
Source Power Cal dialog.
3. Select your converter and source port from the Source pull-down list (e.g. Conv 1 for a frequency
converter connected to NWA port 1).
4. Click Modify Settings and ensure that both Flatness Cal and Reference Receiver Cal are checked.
5. If the P
OUT
vs. P
IN
curve of the converter is very steep of if your test setup exhibits other strong
nonlinearities in the source path, you can choose a Convergence Factor different from one
(usually smaller than one).
6. Start the calibration sweep.
To ensure an accurate source power calibration and quick convergence, use the correct power
coefficients.
A receiver power calibration of the b-waves (without external power meter, using the “Receiver Power
Calibration” dialog) is possible after having completed the source power calibration.
SOURce<Ch>:POWer<Pt>:CONVerter:TRANsfer:DESCription ELECtronic
SOURce<Ch>:POWer<Pt>:CORRection[:ACQuire]
SOURce<Ch>:POWer<Pt>:CORRection:CONVerter<Con>[:STATe]
SOURce<Ch>:POWer<Pt>:CORRection:DATA
SOURce<Ch>:POWer<Pt>:CORRection:COLLect:CFACtor
[SENSe<Ch>:]CORRection:POWer:ACQuire
R&S Converter Leveling Tool
For linearization of the converter output power over a wide range of power levels and frequencies, the
R&S Converter Leveling Tool can be used. It conducts a reference receiver calibration and records both
the converter's power transfer function and, if an E-type converter is used, the transfer function of the
electronic attenuator. For ease of operation, all these steps are conducted automatically and can be
triggered by just one mouse-click. From the calibration measurements a data set is derived which
compensates for the converter's nonlinearities. See section Port<i> Power Control how to apply the data
set.
The R&S Converter Leveling Tool facilitates converter output power sweeps of up to 70 dB and thus is
particularly beneficial for intercept or compression point measurements.
The software tool and a detailed Getting Started manual can be downloaded from the R&S website (see
http://www.rohde-schwarz.com/en/software/zcxxx/).
System Error Correction
If S-parameters are to be measured, an additional system error calibration is recommended after power
calibration. Measurements with frequency converters require a special waveguide calibration kit for
system error correction. Rohde & Schwarz offers these, e.g. the calibration kits R&S ZV-WRxx. The
standards in the calibration kits allow all one-port and two-port calibration types supported by the network
analyzer except for TNA. Refer to the documentation of the calibration kit for details.
When a R&S ZVA-Zxxx converter type is selected via Apply in the Frequency Converter tab of the System
Configuration dialog, the corresponding waveguide connector type WRyy and the associated R&S ZV-
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