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Spectrum Analyzer Mode Key Descriptions
Spectrum Analyzer Mode Functions
THRESHLD
ON OFF
sets a lower boundary to the active trace. The threshold
line “clips” signals that appear below the line when this
function is on. The boundary is defined in amplitude units
that correspond to its vertical position when compared to
the reference level.
The value of the threshold appears in the active-function
block and on the lower-left side of the screen. The threshold
level does not influence the trace memory or marker
position. The peaks found by the markers must be at
least the peak-excursion value above the threshold level.
The value of the threshold level can be changed using
the step keys, the knob, or the numeric keypad. Pressing
any digit, 0 through 9, on the numeric keypad brings up
the selected terminator menu. If a threshold is active,
press
THl?.ESHL.D
ON OFF until OFF is selected to turn
the threshold display off. The threshold value affects peak
searching even when the THRESHLD function is set to off.
Front-Panel Key Access
(jjlsp
Time
Date
accesses the softkey menu used to set and display the
real-time clock.
Front-Panel Key Access
[CONFIG]
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