R&S
®
ZVA / R&S
®
ZVB / R&S
®
ZVT Command Reference
SCPI Command Reference
Operating Manual 1145.1084.12 – 30 1028
intermodulation products.
FREQ:IMOD:PEWC ON
Prepare enhanced wave correction
SOUR:POW:CORR:PMET:ID 1
Select power meter no. 1 (previously configured in the External Power Meters dialog
and properly connected) for the RF source calibration.
SOUR:POW:CORR:IMOD:SPOR
Start source power calibration for the lower and upper tone port (previously selected
source ports 1 and 3).
SOUR:POW:CORR:IMOD:RPOR
Start source power calibration at the previously selected receive port 2.
CALC:PAR:SDEF 'IM_Meas', 'IP3UI'
Create a new trace named 'IM_Meas'. Select the upper 3rd-order intercept point at
the DUT input as a measured quantity.
DISPlay:WINDow1:TRACe2:FEED 'IM_Meas'
Display the newly created trace in diagram area no. 1
SOURce<Ch>:POWer<Pt>:CORRection:IMODulation:SPORts[:ACQuire]
Starts the source calibration for the lower and upper tone ports (1st power calibration step for
intermodulation measurements), stores and applies the calibration data. The external power meter used is
selected via SOURce<Ch>:POWer<Pt>:CORRection:PMETer:ID.
The calibration will be performed at the following frequency ranges:
a. The lower tone frequency range (the base frequency range) with lower tone port driving.
b. The upper tone frequency range with upper tone port driving.
c. The frequency range for all lower and upper intermodulation products which have been selected
via [SENSe<Ch>:]FREQuency:IMODulation:ORDer<Im>:STATe with lower tone port driving.
These power calibrations are required for the receiver calibration in step 2 (unless Prepare
Enhanced Wave Corr is selected via
[SENSe<Ch>:]FREQuency:IMODulation:PEWCorr[:STATe]) and for the measurement of
intermodulation products at the DUT input.
d. If in a non mixer measurement the upper tone is driven by an external generator, an external
device is chosen as Two Tone Output (via
[SENSe<Ch>:]FREQuency:IMODulation:TTOutput) and Prepare Enhanced Wave Corr is
not selected ([SENSe<Ch>:]FREQuency:IMODulation:PEWCorr[:STATe]), the upper tone
frequency range is calibrated not only at the upper tone port but at the lower tone port as well. At
the upper tone port a flatness calibration is required as that port will be driving this frequency
during actual measurements. At the lower tone port a reference receiver calibration is performed
which is required for the receiver power calibration in step 2 and which cannot be performed at the
external generator.
e. If in addition to the intermodulation measurement a mixer measurement is set up as well, all
frequency ranges mentioned under a. through c. will be calibrated in the IF range as well unless
Prepare Enhanced Wave Corr is selected
([SENSe<Ch>:]FREQuency:IMODulation:PEWCorr[:STATe]). In that case the IF frequency
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