The signal generator in combination with a connected R&S NRP probe allows sweep measurements on DUTs.
The measurement data of the sensors is displayed in traces in a measurement diagram. Four traces are available. The traces are automatically or manually assigned to the sensors. In addition to the data traces, a reference trace can be stored and recalled and/or the trace indication can be frozen temporarily (hold trace), thus enabling comparison of traces. Readout and comparison of particular values of the traces is possible by means of four markers.
- Power versus frequency (frequency response)
- Power versus power (power sweep, AM/AM)
These two modes are generator driven, that means, the generator provides the measurement signal. - Power versus time (power measurement in the time domain R&S NRP trace mode).
This mode is signal driven, that means besides the generator signal also external signals can be analyzed. Time mode requires an additional trigger event, for which level, hysteresis and dropout time are freely selectable. The generator also features pulse data analysis in this mode, provided that R&S power sensor NRP-Z81 is connected.
The timing can be used for normal and fast measurements in all modes.
By the use of a separate frequency than the set generator frequency, measurement results retrieved at a different frequency can be displayed in the diagram (for example as provided at the output of the DUT).
The instrument provides hardkeys with special functions for convenient operation, when the "NRP-Z Power Analysis" dialogs are active.
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- Standard, diagram and buttons are displayed,
- Full display, diagram with marker list but no buttons are displayed,
- Full display, diagram with pulse data list but no buttons are displayed, and
- Full display only diagram is displayed.
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The MENU and SETUP keys directly open a special power analysis menu. Either the complete menu tree or the setup menu tree is available in addition to the power analysis menu.
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![]() | The instrument also provides this context-sensitive menu by pressing the right mouse button in the measurement diagram. |
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The ON /OFF key toggles between measurement starts and stops.
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The BACKSPACE key resets the scaling of the y-axis to suitable values after the use of auto scaling in the expanding mode. In this mode, the y scale can get too expanded due to temporary high power values. The reset function resets the diagram again, to indicate smaller power values.
If "Auto Scale" is turned off, press the BACKSPACE button to switch to "Auto Scale" expanding mode, and to reset "Auto Scale".
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