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Measuring Waveforms
TDS 500C, TDS 600B, & TDS 700C User Manual
3–139
3. You create or edit a mask by moving a cross-hair cursor on the display and
adding or deleting points as required. To move the cursor, turn the general
purpose knob. To change the cursor direction, press SELECT.
4. To add a point to the mask, move the cursor to the location and press Add
Point (side).
5. To delete a point from the mask, move the cursor to the point and press
Delete Point (side).
6. To delete all points from the mask, press Delete All Points (side).
7. When you are finished editing the mask, press OK End Edit (side).
Masks are created by connecting the points independent of the order they are
entered. Points are connected by sorting the points in left-to-right order and
grouping them across a diagonal from the left-most point to the right-most point.
If two points share the same horizontal position along either the left or right edge
of the mask, then the diagonal runs from the top left-most point to the bottom
right-most point. Points below the diagonal form the bottom boundary of the
mask; points above it form the top boundary.
When creating masks, remember the following operating characteristics and refer
to Figure 3–67:
H Locate one point along the left edge or right edge of the mask further left or
further right than any other point.
H Points are connected left to right.