Chapter V Menu Description
72
fault debugging, including [Trigger Mode Auto Normal], [Pulse Edge Rising Falling],
[Trigger Level] and [Trigger Position].
[Trigger] →[Trigger Mode]
Switch the trigger mode: Auto, Normal and Single. If “Auto” is selected, the sawtooth voltage will
be generated automatically by the scanning circuit. No matter whether there is a signal to be tested,
the bright scanning line will appears on the oscilloscope screen. If the signal to be tested is sent,
the scanning mode of automatic scanning will automatically change into trigger scanning. If
“Normal” is selected, i.e. trigger scanning, scanning will be in the ready status in the case of no
trigger signal, and there will be no scanning line. If the trigger signal is received, scanning will be
triggered. If “Single” is selected, scanning will be stopped after one trigger scanning of the
received trigger signal, which is different from that in the normal mode.
[Trigger] →[Pulse Edge Rising Falling]
Select the trigger pulse edge as the rising edge or falling edge.
[Trigger] → [Trigger level]
Set the trigger level, and determine the vertical height of the trigger point.
[Trigger] →[Trigger Time]
Set the trigger time and determine the horizontal position of the trigger point.
[Cursor]
The soft menu related to the oscilloscope cursor will pop up, including [Cursor A B], [Cursor
OFF ON], [Mode Voltage Time] and [Position].
[Cursor] →[Cursor A B]
Change the current cursor. Read the voltage and time information of the cursor. Such values are
displayed in the cursor display zone in the upper part of the screen. The selected cursor has the
following functions: [Cursor OFF ON], [Mode Voltage Time], [Position], etc.
[Cursor] →[Cursor OFF ON]
Enable or disable the selected single active cursor. In the first enabling, the cursor is at the starting
position of the waveform. In the voltage mode, the cursor jumps in the vertical position. In the
time mode, the cursor jumps in the horizontal position. The voltage or time information can be
read in the cursor display area if the cursor is ON. The current active cursor can be moved with the
Summary of Contents for 4992A
Page 1: ...I 4992A Radio Test Set User Manual China Electronics Technology Instruments Co Ltd...
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Page 23: ...Article I Handling Instructions 11 Article I Handling Instructions...
Page 93: ...81 Article II Technical Specifications...
Page 132: ...Article III Maintenance Instructions 120 Article III Maintenance Instructions...
