Rigol DSA875 Manual do Utilizador descarregar pdf (Página 133)

Chapter 2 Front Panel Operation RIGOL

User’s Guide for DSA800 Series

2-81

Delta Pair

One of the marker types. When selected, a pair of markers will appear on the trace:

Reference Marker (marked by a combination of the marker number and letter “R”,

such as “1R”) and the Delta Marker (marked by the marker number, such as “1”).

Key Points:

 You can use the numeric keys, knob or direction keys to set the locations of

the reference marker (selecting “Ref”) and the delta marker (selecting “Delta”)

respectively.

 This is different from the Delta type marker in that you can modify both the

reference (selecting “Ref”) and delta (selecting “Delta”) points. Additionally,

both the X and Y values of the reference marker are stable for “Delta” marker

during the sweep; but the Y value of the reference marker updates along with

the sweep for “Delta Pair” marker.

Span Pair

One of the marker types. When selected, a pair of markers will appear on the trace:

Reference Marker (marked by a combination of the marker number and letter “R”,

such as “1R”) and the Delta Marker (marked by the marker number, such as “1”).

Key Points:

 You can use the numeric keys, knob or direction keys to set the locations of

both the reference marker and delta marker at the same time.

 If “Span” is selected, setting the “Span Pair” will keep the center position of

the two markers unchanged and move them towards the two sides (value

increases) or the middle (value decreases).

 If “Center” is selected, setting the “Span Pair” will keep the relative distance

between the two markers unchanged and move their center position left

(value decreases) or right (value increases).

 This is different from the “Delta” type marker in that you can modify both the

reference marker and delta marker at the same time.

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Rigol DSA875 Manual do Utilizador Página 133