Stanford Research Systems SR785, Operating Manual And Programming Reference

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Display Options Menu 4-49
SR785 Dynamic Signal Analyzer
d/dx Window
Set the d/dx Window for the active display as a percentage of the display length
[0.0005..10 ].
The percentage is converted to a number of display bins (minimum of 1) and the aperture
is 2 times this number plus 1. The aperture is used in the calculation of d/dx and group
delay in user math functions. Larger windows result in smoother graphs with less x-axis
resolution.
Derivative calculations are not available in Octave Analysis measurements and this menu
box cannot be changed.
The two displays have their own d/dx Window. The same function may viewed in the
two displays with different d/dx windows. This entry field can be linked to both displays
using the [Link] key.
Command: DDXW (?) d {, x}