Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 378 / 813

Channel Menu R&S
®
ZVA/ZVB/ZVT
1145.1084.12 4.216 E-6
Interpolation and Extrapolation
The analyzer can interpolate and extrapolate power correction data so that a source or receiver power
calibration can be reused after a change of the frequency sweep range:
•
At new sweep points within the calibrated sweep range, interpolation is applied to calculate the
correction data. A label
PCai in the trace list indicates an interpolated power calibration.
•
At new sweep points outside the calibrated sweep range, the correction values are
extrapolated: Sweep points below the lowest calibrated frequency are assigned the correction
value of the lowest frequency. Sweep points above the highest calibrated frequency are
assigned the correction value of the highest frequency. A label
PCax in the trace list indicates
an extrapolated power calibration.
Power Correction On
Applies all available source and/or receiver power calibrations to the active channel. This function is
disabled if no power correction data has been acquired for the active channel.
Uncheck the ... Power Correction Off boxes in the Source Power Cal and Receiver Power Cal
dialogs to enable an individual source or receiver calibration. Press Power Correction Off to disable the
power calibration of all sources and receivers.
Remote control: SOURce<Ch>:POWer:CORRection:STATe ON
[SENSe<Ch>:]CORRection:POWer:STATe ON
Power Correction Off
Disables all source and receiver power calibrations of the active channel so that all power correction
data is ignored. This function is disabled if no power correction data has been acquired for the active
channel.
Check the ... Power Correction Off boxes in the Source Power Cal and Receiver Power Cal
dialogs to disable an individual source or receiver calibration. Press Power Correction On to re-enable
the power calibration of all sources and receivers.
Remote control:
SOURce<Ch>:POWer:CORRection:STATe OFF
[SENSe<Ch>:]CORRection:POWer:STATe OFF
Calibration Manager
Opens a dialog to store system error correction and power correction data to the cal pool and to assign
stored correction data to channels.
Cal pool
The cal pool is a collection of correction data sets (cal groups) that the analyzer stores in a common
directory
C:\Rohde&Schwarz\
NWA\Calibration\Data. Cal groups in the pool can be applied to
different channels and setups. Each cal group is stored in a separate file named
<CalGroup_name>.cal. The cal group name can be changed in the
Calibration Manager dialog.