Measurement Configurations (Spectrum Configuration)

The popup menu Spectrum Configuration determines statistical and display parameters for the spectrum analysis. It is activated by pressing the softkey Spectrum in the graphical measurement menu Spectrum twice. In the Control tab, the configuration menu defines:

The repetition mode (Repetition).
The type of measurement curve to be displayed (Display Mode)
The number of sweeps forming a statistics cycle (Statistic Count)
The format of the grid (Scaling Mode)
The prescription for calculating the curve from the entire set of measurement points (Detect Mode)

Besides, it influences the spectrum display by adding or removing a Grid with configurable cells.

Spectrum Configuration - Control

Many functions of this menu comply with those of the Control tab of the Power Configuration menu. In the remote-control commands, the keyword POWer is to be replaced by SPECtrum.

Default Settings	The Default switch assigns default values to all settings in the Control tab (the default values are quoted in the command description in chapter 6 of this manual).
	Remote Control `-`

Repetition	Repetition determines the repetition mode, see Manual Operation and explanations given in section Measurement Configurations (Power Configuration) for the Power measurement.
	Remote control `CONFigure:SPECtrum:CONTrol:REPetition CONTinuous \| SINGleshot \| 1 ... 10000,NONE,<Stepmode>`

Display Mode	Display Mode defines which of the four measured and calculated measurement curves is displayed. The measurement curves differ in the way the RF signal power p(t) at a fixed point in time t is calculated if the measurement is repeated several times:

Current	Measured value for current sweep

Minimum	Minimum over a number of sweeps

Maximum	Maximum over a number of sweeps

Average	Average value over a number of sweeps

	One sweep corresponds to the evaluation of the trace over the whole measurement range. The number of sweeps for calculation of the statistical values Minimum, Maximum and Average - and thus the result - depends on the repetition mode set . In detail, this implies:

Single shot	Display of minimum, maximum and average value from the performed statistics cycle (see Statistic Count definition below).

Continuous	Display of minimum and maximum from all sweeps already measured. The average value, however, is calculated according to the prescription in Chapter 3, section General Settings.
	Remote control no display mode set explicitly, the four measurement curves are accessible via `FETCh:SUBarrays:SPECtrum[:CURRent]?FETCh:SUBarrays:SPECtrum:MINimum? FETCh:SUBarrays:SPECtrum:MAXimum? FETCh:SUBarrays:SPECtrum:AVERage?`etc.

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