Rohde & Schwarz 1145.1010.04/05/06, Руководство по эксплуатации

Страница: 15 / 813

R&S
®
ZVA/ZVB/ZVT Glossary
1145.1084.12 1 E-1
Glossary
A
Active channel: Channel belonging to the active trace. The active channel is highlighted in the channel
list below the diagram. The active channel is not relevant in remote control where each channel
can contain an active trace.
Active marker: Marker that can be changed using the settings of the Marker menu (Delta Mode, Ref.
Mkr -> Mkr, Mkr Format). The active marker is also used for the Marker Functions. It appears in
the diagram with an enlarged marker symbol and font size and with a dot placed in front of the
marker line in the info field.
Active menu: The menu containing the last executed command. If the softkey bar is displayed (Display
- Config./View - Softkey Labels on), then the active menu is indicated on top of the softkey bar.
Active trace (manual control): Trace that is selected to apply the settings in the Trace menu. The
active trace is highlighted in the trace list of the active diagram area. It can be different from the
active trace in remote control.
Active trace (remote control): One trace of each channel that has been selected as the active trace
(CALCulate[Ch]:PARameter:SELect <Trace Name>). Many commands (e.g. TRACE...) act on
the active trace. It can be different from the active trace in manual control.
C
Cal pool: The cal pool is a collection of correction data sets (cal groups) that the analyzer stores in a
common directory. Cal groups in the pool can be applied to different channels and setups.
Calibration: The process of removing systematic errors from the measurement (system error
correction). See also TOSM, TOM, TRM, TRL, TNA.
Calibration kit: Set of physical calibration standards for a particular connector family.
Calibration standard: Physical device that has a known or predictable magnitude and phase response
within a given frequency range. Calibration standards are grouped into several types (open,
through, match,...) corresponding to the different input quantities for the analyzer's error
models.
Calibration unit: Integrated solution for automatic calibration of 1 to 4 ports (accessory ZV-Z41). The
unit contains calibration standards that are electronically switched when a calibration is
performed.
Channel: A channel contains hardware-related settings to specify how the network analyzer collects
data. Each channel is stored in an independent data set. The channel settings complement the
definitions of the Trace menu; they apply to all traces assigned to the channel.
Compression point: The x-dB compression point of an S-parameter or ratio is the stimulus signal level
where the magnitude of the measured quantity has dropped by x dB compared to its value at
small stimulus signal levels (small-signal value).
Confirmation dialog box: Standard dialog box that pops up to display an error message or a warning.
The current action can be either continued (OK) or cancelled (Cancel) on closing the dialog
box.
Crosstalk: The occurrence of a signal at the receive port of the analyzer which did not travel through
the test setup and the DUT but leaks through other internal paths. Crosstalk causes an isolation
error in the measurement which can be corrected by means of a calibration.
CW frequency: Continuous Wave frequency; fixed stimulus frequency used in Power, CW Time and
CW Mode sweeps.