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Chapter V Menu Description
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keys, step keys or knob. The amplitude step is 1dBm. The reference level corresponds to the top
value of the coordinate grid. The signal measured at the reference level is the most accurate. The
input attenuator is associated with the reference level, and can be adjusted automatically to avoid
input signal compression. The default reference level is 0dBm.
[Resolution bandwidth]
Adjust the resolution bandwidth, ranging from 10Hz to 3kHz. The resolution bandwidth can be
changed with the number keys, step keys and knob. The step keys and knob change by the step 1,
3 or 10. The default resolution bandwidth is 30kHz.
[Input port T/R ANT]
Select the T/R port or ANT port as the input port of the spectrum analyzer.
[Cursor]
The soft menu related to the cursor will pop up, including [Cursor 1 2 3 4], [Cursor OFF ON],
[Mode Normal Differential], [Position], [
Center Frequency], [Peak], [Left Peak], [Right Peak],
[Maximum] and [Minimum].
[Cursor] →[Cursor1 2 3 4]
Change the current cursor. The frequency information can be read with the cursor, and the values
are displayed in the cursor display area in the upper part of the screen. The selected cursor has the
following functions: [Cursor OFF ON], [Mode Normal Differential], [Position], [
Center
Frequency], [Peak], [Right Peak], [Left Peak], [Maximum], [Minimum], etc.
[Cursor] →[Cursor OFF ON]
Enable or disable the selected single active cursor. The cursor enabled for the first time will be set
in the starting position of the trace. In the differential mode, disable the cursor to exit this mode. If
the cursor is ON, the frequency information can be read in the cursor display area. The current
active cursor can be moved with the knob or step keys or by dragging the touch screen.
[Cursor] →[Mode Normal Differential]
Enable the normal or differential mode of the cursor. This key is available when the current cursor
is ON. In the normal mode, the frequency of the current cursor position is displayed in the cursor
display area in the upper part of the screen. In the differential mode, the frequency difference
between the differential cursor and normal cursor is displayed in the cursor display area. When 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...