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Fig.3.52 Delta mark
3) Fixed Mark
“Fixed Mark” is similar to “Delta Mark”: the main function is also to view the deference of two markers and the
method to change the position of the second signal is the same. But the first marker will be frozen after setting the
“Fixed Mark” to “On”, and its position will not change with the signal again only if the reference level or the
frequency is changed (the absolute amplitude and frequency values of this marker are unchanged).
4) Marker To
In normal mark mode, pressing the key the follow submenu will appear. User can set current mark level as Ref
level by soft-key of mark to Ref level, also can set current mark Freq as center Freq by key of mark to center Freq.
At the same time the span BW is modified automatically.
Fig.3.53 Before marker to Ref Level
