R&S
®
ZVA / R&S
®
ZVB / R&S
®
ZVT GUI Reference
Channel Menu
Operating Manual 1145.1084.12 – 30 456
SOURce<Ch>:POWer:CORRection:TCOefficient:COUNt?
SOURce<Ch>:POWer:CORRection:TCOefficient:DELete[:DUMMy]
SOURce<Ch>:POWer:CORRection:TCOefficient:DELete:ALL
SOURce<Ch>:POWer:CORRection:TCOefficient:FEED
MMEMory:LOAD:CORRection:TCOefficient
"<file_name>"[,"parameter"]
MMEMory:SAVE:CORRection:TCOefficient "<file_name>"
Receiver Power Cal...
Opens the configuration dialog for a receiver power calibration. The receiver power calibration data is
acquired in a calibration sweep after appropriate selection of the calibrated wave quantity and the source.
Purpose of a receiver power calibration
A receiver power calibration ensures that the power readings at a specified input port of the analyzer
agree with the source power level calibrated at an arbitrary reference plane. Typically, the reference plane
is at the input of the receiver so that the calibration eliminates frequency response errors in the calibrated
receiver.
A receiver power calibration generally improves the accuracy of power (wave quantity) measurements.
The correction data acquired in a frequency or power sweep is re-used if a Time or CW Mode sweep is
activated.
Calibration procedure and calibration sweep
The receiver power calibration is based on a wave with known power.
No external connection is needed for a receiver power calibration on the reference receiver (wave
quantity a
n
with Port n used as a source). Besides, the reference receiver is automatically
calibrated together with any source power calibration of an analyzer port unless this feature is
disabled in the Modify Source Power Cal Settings dialog.
A reference receiver power calibration with a different source port (wave quantity a
n
with source
Port m; n ≠ m) can make sense if the Direct Generator and Receiver Access connectors (option
R&S ZVA<frequency>-B16) are used.
Calibration of a received wave b
n
involves an external test setup. The received wave to calibrate
can be generated by the analyzer or an external generator.
The receiver power calibration involves a single calibration sweep. The calibration sweep is performed
with current channel settings but with a maximum IF bandwidth of 1 kHz. Smaller IF bandwidths are
maintained during the calibration sweep; larger bandwidths are restored after the sweep.
The analyzer measures the received power at each sweep point, compares the result with the known
power of the source, and compiles a correction table.
An acoustic signal indicates the end of the calibration sweep. At the same time, a message next to the
calibrated source indicates the status of the receiver power calibration. After a change of the sweep points
or sweep range, the analyzer interpolates or extrapolates the calibration data.
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