Trigger Position Field
The Trigger Position field accesses a selection menu with the options of
Start, Center, End, User Defined, or Delay. When an option is selected, that
point of the available memory is positioned relative to the trigger. A
representation of this is shown by the blue graphic bar with the "Trig"
indicator line. The Trigger Position field determines how much data is stored
before and after the trigger occurs for all subsequent acquisitions.
When a Run is started, the analyzer will not look for a trigger until at least the
proper percent of pretrigger data has been stored. After a trigger has been
detected, the proper percent of posttrigger data is stored before the analyzer
halts.
Even when the trigger position is set to Start or End, there will always be a
small portion of pretrigger and posttrigger data stored.
Start
When the trigger position is set to Start, the starting point of
available memory is positioned relative to the trigger point. This results
in maximum posttrigger data and minimum pretrigger data.
Center
When the trigger position is set to Center, the center point of
available memory is positioned relative to the trigger point. This results
in half pretrigger data and half posttrigger data.
Trigger
Position
Start
Center
End
User-defined
Delay
The Trigger Menu
Trigger Position Field
12–37
Summary of Contents for 1660A Series
Page 5: ...vi...
Page 14: ...1 Introduction...
Page 24: ...2 Probing...
Page 35: ...Probing Assembling the Probing System 2 12...
Page 36: ...3 Using the Front Panel Interface...
Page 65: ...3 30...
Page 66: ...4 Using the Mouse and the Optional Keyboard...
Page 74: ...5 Connecting a Printer...
Page 91: ...5 18...
Page 92: ...6 Disk Drive Operations...
Page 118: ...7 The RS 232C GPIB and Centronix Interface...
Page 121: ...RS 232 GPIB Menu Map Cont The RS 232C GPIB and Centronix Interface 7 4...
Page 123: ...Printer Controller Menu Map Cont The RS 232C GPIB and Centronix Interface 7 6...
Page 132: ...8 The System Utilities...
Page 137: ...9 The Common Menu Fields...
Page 150: ...9 14...
Page 151: ...10 The Configuration Menu...
Page 159: ...11 The Format Menu...
Page 161: ...Format Menu Map The Format Menu 11 3...
Page 194: ...11 36...
Page 195: ...12 The Trigger Menu...
Page 198: ...Trigger Menu Map The Trigger Menu 12 4...
Page 199: ...Trigger Menu Map Continued The Trigger Menu 12 5...
Page 235: ...13 The Listing Menu...
Page 237: ...Listing Menu Map The Listing Menu 13 3...
Page 260: ...13 26...
Page 261: ...14 The Waveform Menu...
Page 263: ...Waveform Menu Map The Waveform Menu 14 3...
Page 264: ...Waveform Menu Map cont The Waveform Menu 14 4...
Page 300: ...14 40...
Page 301: ...15 The Mixed Display Menu...
Page 306: ...15 6...
Page 307: ...16 The Chart Menu...
Page 310: ...Chart Menu Map The Chart Menu 16 4...
Page 311: ...Chart Menu Map cont The Chart Menu 16 5...
Page 336: ...16 30...
Page 337: ...17 The Compare Menu...
Page 340: ...Compare Menu Map The Compare Menu 17 4...
Page 355: ...18 Error Messages...
Page 363: ...19 Specifications and Characteristics...
Page 377: ...20 Operator s Service...
Page 386: ...Troubleshooting Flowchart 1 Operator s Service To use the flowcharts 20 10...
Page 387: ...Troubleshooting Flowchart 2 Operator s Service To use the flowcharts 20 11...