China Electronics Technology Instruments AV3672 Series, User Manual

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4 Measurement Setting
4.6 Trigger Mode
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Fig. 4.18 Trigger Setting Dialog Box
4.6.3 [Trigger] Dialog Box
1) Trigger setting options
a) Trigger source zone
The source of the channel trigger signal is determined by trigger source setting of the trigger source zone. The
effective trigger signal is generated when sweep is not done by the vector network analyzer. Three trigger sources
can be selected:
internal , manual and external . The set trigger source will be used as the trigger source of all
channels.
➢
[Internal] (default)
1) Trigger signal generation is controlled automatically by the analyzer.
2) One trigger signal is generated immediately after one measurement.
➢
[Manual]
The manual trigger signal is generated in the following methods.
1) Click the [Manual] button in the [Trigger] dialog box.
2) Click the [Manual item in the [Trigger] sub-menu under the [Stimulus] menu of the menu bar.
➢
[External]
1) The trigger signal is input by [External] of the BNC connector on the rear panel.
2) The signal is TTL level.
3) Level trigger: the high or low level can be set in the [External] dialog box.
4) The pulse width is 1μs at and must not be longer than the sweep time (otherwise, the trigger may be enabled
several times).
b) Range zone