Triggering the Oscilloscope
4
6000 Series Oscilloscope User’s Guide
193
To trigger on odd or even fields
To check the envelope of your video signals, or to measure worst
case distortion, trigger on the odd or even fields. When Field 1
is selected, the oscilloscope triggers on color fields 1 or 3. When
Field 2 is selected, the oscilloscope triggers on color fields 2 or
4.
1
Press the Trigger
More
key, then press the
TV
softkey.
2
Press the
Settings
softkey, then press the
Standard
softkey to
select the appropriate TV standard.
3
Press the
Mode
softkey and select
Field1
or
Field2
.
The trigger circuits look for the position of the start of Vertical
Sync to determine the field. But this definition of field does not
take into consideration the phase of the reference subcarrier.
When Field 1 is selected, the trigger system will find any field
where the vertical sync starts on Line 4. In the case of NTSC
video, the oscilloscope will trigger on color field 1 alternating
with color field 3 (see the following figure). This setup can be
used to measure the envelope of the reference burst.
Summary of Contents for InfiniiVision DSO6014L
Page 2: ...Agilent Technologies Agilent 6000 Series Oscilloscopes User s Guide...
Page 59: ...58 6000 Series Oscilloscope User s Guide 1 Getting Started...
Page 109: ...108 6000 Series Oscilloscope User s Guide 2 Front Panel Controls...
Page 125: ...124 6000 Series Oscilloscope User s Guide 3 Viewing and Measuring Digital Signals...
Page 251: ...250 6000 Series Oscilloscope User s Guide 5 Making Measurements...
Page 287: ...286 6000 Series Oscilloscope User s Guide 6 Displaying Data Interpreting Decoded LIN Data...
Page 321: ...320 6000 Series Oscilloscope User s Guide 7 Saving and Printing Data...
Page 370: ......
