Agilent Technologies DSO-X 4022A, Руководство пользователя

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74 Agilent InfiniiVision 4000 X-Series Oscilloscopes User's Guide
2
Horizontal Controls
The time reference position sets the initial position of the trigger event
within acquisition memory and on the display, with delay set to 0.
Turning the Horizontal scale (sweep speed) knob expands or contracts the
waveform about the time reference point (
∇
). See "To adjust the horizontal
(time/div) scale" on page 65.
Turning the Horizontal position ( ) knob in Normal mode (not Zoom)
moves the trigger point indicator (
▼
) to the left or right of the time
reference point (
∇
). See "To adjust the horizontal delay (position)" on
page 65.
Searching for Events
You can use the
[Search]
key and menu to search for Edge, Pulse Width,
Rise/Fall Time, Runt, and Serial events on the analog channels.
Setting up searches (see "To set up searches" on page 74) is similar to
setting up triggers. In fact, except for Serial events, you can copy search
setups to trigger setups and vice- versa (see
"To copy search setups" on
page 75).
Searches are different than triggers in that they use the measurement
threshold settings instead of trigger levels.
Found search events are marked with white triangles at the top of the
graticule, and the number of events found is displayed in the menu line
just above the softkey labels.
To set up searches
1
Press
[Search]
.
2
In the Search Menu, press
Search
; then, turn the Entry knob to select
the search type.
3 Press Settings , and use the Search Settings Menu to set up the selected
search type.
Setting up searches is similar to setting up triggers:
• For setting up Edge searches, see "Edge Trigger" on page 168.