Chapter 4
115
Front-Panel Key Reference
Trig
Trig
The
Trig
key accesses the menu of keys that allow you to select the
sweep mode and trigger mode of the spectrum analyzer.
Free Run
activates the trigger condition that allows the next sweep to start as
soon as possible after the last sweep. Key Access:
Trig
Video
activates the trigger condition that allows the next sweep to start if the
detected RF envelope voltage rises to a level set by the display line.
When
Video
is pressed, the display line appears on the display. The
spectrum analyzer triggers when the input signal exceeds the display
line level at the left edge of the display. Key Access:
Trig
Line
activates the trigger condition that allows the next sweep to be
synchronized with the next cycle of the line voltage. Key Access:
Trig
External
activates the trigger condition that allows the next sweep to start when
positive- going external voltage (connected to
Ext Trig In
on the rear
panel) passes through approximately 1.5 volts. The external trigger
signal must be a 0 V to +5 V TTL signal. Key Access:
Trig
Содержание ESA-L1500A
Страница 12: ...11 1 Preparing for Use and Printing ...
Страница 28: ...27 2 Getting Started ...
Страница 44: ...Chapter 2 43 Getting Started Making a Measurement Figure 2 5 Reading the Amplitude and Frequency ...
Страница 47: ...46 Chapter2 Getting Started Analyzer Battery Information ...
Страница 48: ...47 3 Troubleshooting ...
Страница 54: ...Chapter 3 53 Troubleshooting How to Return Your Analyzer for Service Figure 3 1 ...
Страница 117: ...116 Chapter4 Front Panel Key Reference Trig ...
Страница 118: ...117 5 Menu Maps ...
Страница 119: ...118 Chapter5 Menu Maps ...
Страница 120: ...Chapter 5 119 Menu Maps ...
Страница 121: ...120 Chapter5 Menu Maps ...
Страница 122: ...Chapter 5 121 Menu Maps ...
Страница 124: ...Chapter 5 123 Menu Maps ...
Страница 125: ...124 Chapter5 Menu Maps ...
Страница 127: ...126 Chapter5 Menu Maps a Frequency is replaced with Time when the X Axis Units Freq Time selection is Time ...
Страница 128: ...Chapter 5 127 Menu Maps ...
Страница 129: ...128 Chapter5 Menu Maps ...
Страница 130: ...Chapter 5 129 Menu Maps ...
Страница 131: ...130 Chapter5 Menu Maps ...
Страница 135: ...134 Chapter5 Menu Maps ...
Страница 136: ...135 6 Options and Accessories ...
Страница 145: ...144 Chapter6 Options and Accessories Accessories ...
Страница 146: ...145 7 Specifications ...
Страница 179: ...178 Chapter7 Specifications Regulatory Information ...
Страница 180: ...179 8 Required Equipment ...
Страница 187: ...186 Chapter8 Required Equipment Test Equipment ...
Страница 308: ...307 10 Performance Verification Test Record ...
Страница 321: ...320 Chapter10 Performance Verification Test Record HP ESA L1500A Performance Verification Test Record ...