Horizontal Controls 2
Keysight InfiniiVision HD3-Series Oscilloscopes User's Guide 51
Turning the Horizontal scale (sweep speed) knob expands or contracts the
waveform about the time reference point (∇). See
"To adjust the horizontal scale
(time/div)" on page 46.
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 47.
Searching for Events
You can use the Analyze > Search... menu item and Search dialog box to search for
Edge, Pulse Width, Rise/Fall Time, Frequency Peaks, and Protocol Decode events
on the analog channels.
Setting up searches (see "To set up searches" on page 51) is similar to setting up
triggers. In fact, except for Frequency Peaks and Protocol Decode events, you can
copy search setups to trigger setups and vice-versa (see
"To copy search setups"
on page 52).
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 grid, and the
number of events found is displayed in the listing on the right side of the display.
To set up searches
1 From the menu, choose Analyze > Search....
2 In the Search dialog box, select On.
3 Select the Search Type, and use the additional controls to set up the selected
search type.
In most cases, setting up searches is similar to setting up triggers:
• For setting up Edge searches, see "Edge Trigger" on page 137.
• For setting up Pulse Width searches, see "Pulse Width Trigger" on
page 139.
• For setting up Rise/Fall Time searches, see "Rise/Fall Time Trigger" on
page 144.
• For setting up Frequency Peak searches, see "Searching for FFT Peaks" on
page 70.
• For setting up Protocol searches, see "Protocol Trigger" on page 149 and
"Searching Lister Data" on page 121.
Remember that searches use the measurement threshold settings instead of
trigger levels. Select Thresholds... to open the Measurement Threshold dialog box.
See
"Measurement Thresholds" on page 207.
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