Spectrum Analyzer Mode Key Descriptions

Spectrum Analyzer Mode Functions

TIMEDATE ON OFF

TO1

ON OFF

turns the display of the realtime clock on or off. Pressing DEFAULT CONFIG sets TIMEDATE OH OFF to ON.

Front-Panel Key Access [CONFIG]

finds the third-order intercept of the two highest amplitude signals and the two associated distortion products. The effect of unequal test signal amplitude is compensated for. The measurement runs continuously, re-executing at the end of each sweep. The units for the displayed value can be selected by pressing Amptd Units softkey. The two test signals and the two associated distortion products must all be displayed for the measurement to function. The relative amplitudes and frequencies of the displayed signals must fit the TO1 pattern. All of the signals must be greater than the peak excursion above the threshold.

Front-Panel Key Access (j-1

accesses the trace softkeys that allow you to store and manipulate trace information. Each trace is comprised of a series of data points that form a register where amplitude information is stored. The analyzer updates the information for any active trace with each sweep. If two traces are being written to, they are updated on alternating sweeps. (Also see “Screen Annotation” in Chapter 2.)

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