HP 8591C Uživatelský manuál Strana 365

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MARKER A
Spectrum Analyzer Mode Key Descriptions
Spectrum Analyzer Mode Functions
activates a second marker at the position of the first marker.
(If no marker is present, two markers appear at the center
of the display.) The amplitude and frequency of the first
marker is fixed, and the second marker is under your
control. Annotation in the active function block and in the
upper-right corner of the screen indicates the frequency and
amplitude differences between the two markers. The display
mode must not be changed between log and linear while
using a delta marker.
NOTE
If there are already four markers when MARKER A is pressed, a nonactive marker disappears, the
active marker becomes a reference marker, and the delta marker becomes the active marker.
Front-Panel Key Access
(MKR)
or
CPEAK
SEARCH]
6-89
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