R&S ZVB - Page 467

R&S
®
ZVA / R&S
®
ZVB / R&S
®
ZVT GUI Reference
Channel Menu
Operating Manual 1145.1084.12 – 30 452
converter without electronic attenuator is a typical example for a measurement where the Flatness
Cal should be disabled.
 Includes – Reference Receiver Cal enables a calibration of the reference receiver of the active
source port together with the source power calibration. The reference receiver reading is set equal
to the power reading of the external sensor. This can replace a subsequent a-wave receiver
power calibration.
 Use Reference Receiver after <n> Power Meter Readings enables the fast power calibration
mode where the external power meter is used for the first <n> calibration sweeps only. The
analyzer uses its reference receiver for the following, iterative calibration sweeps. The gain in
speed increases with the number of readings minus <n>. The verification sweep (if it is enabled) is
also performed using the reference receiver; it may be used to estimate the accuracy of the fast
power calibration. See also Conditions for fast power calibration below.
Use Power Meter only disables fast power calibration; the power meter is used for all calibration
sweeps.
Reference Receiver only is available while the Reference Receiver Cal is disabled. This method
also requires an existing source power calibration of the active channel and test setup for a
particular target power <Cal Power 1>, including a reference receiver calibration. The calibration
for the new target power <Cal Power> is based on the existing calibration data at <Cal Power 1>.
During the sequence of calibration sweeps, the source power is varied such that the reference
receiver indicates the new power <Cal Power>. Assuming a sufficiently linear behavior of the
components in the test setup, <Cal Power> is also available at the reference plane.
 If Switch off All Other Sources... is checked, the power at all sources except the calibrated source
is switched off during the calibration. This is advisable especially if the power calibration is
intended for intermodulation measurements where different signals are combined.
The analyzer performs either a Flatness Cal or a Reference Receiver Cal, or both. The two options
must not be disabled simultaneously.
Conditions for fast power calibration
To use fast power calibration, ensure that the analyzer is configured as follows:
1. An internal source is used.
2. The Reference Receiver Cal is enabled.
3. On an R&S ZVA network analyzer that is equipped with option R&S ZVA<frequency>-B16, Direct
Generator/Receiver Access, the jumper for the REF OUT / REF IN connectors is connected so
that the reference receiver loop is closed.
Remote control:
SOURce<Ch>:POWer<Pt>:CORRection:NREadings
SOURce<Ch>:POWer<Pt>:CORRection:COLLect:AVERage[:COUNt]
SOURce<Ch>:POWer<Pt>:CORRection:COLLect:AVERage:NTOLerance
SOURce<Ch>:POWer<Pt>:CORRection:COLLect:CFACtor
SOURce<Ch>:POWer<Pt>:CORRection:COLLect:FLATness
SOURce<Ch>:POWer<Pt>:CORRection:COLLect:RRECeiver
SOURCe<Ch>:POWer<Pt>:CORRection:FAST
SOURce<Ch>:POWer<Pt>:CORRection:COLLect:METHod
SOURce<Ch>:POWer<Pt>:CORRection:COLLect:PMReadings
SOURce<Ch>:POWer<Pt>:CORRection:OSOurces[:STATe]