3 Spectrum Analyzer Mode
3.2 Swept SA Measurement
Remote
Command
:DISPlay:WINDow[1]:TRACe:Y:DLINe[1]|2|…|4:STATe OFF | ON | 0 | 1
:DISPlay:WINDow[1]:TRACe:Y:DLINe[1]|2|…|4:STATe?
Preset
OFF
Select Freq Line
Lets you select the display line currently being controlled by "Freq Line" on page
271.
Preset 1
Freq Line
Activates an adjustable vertical line that is used as a visual reference line. The line’s
horizontal position corresponds to its frequency value. The value of the frequency
line (for example, 2.5GHz) appears at the top of the display, to the right or left of the
line justified as required for it to be on screen, marked FL1 for Freq Line 1, FL2 for
Freq Line 2, etc.
This control affects whichever Freq Line has been selected by "Select Freq Line" on
page 271.
The Freq Line can be adjusted using the step keys, knob, or numeric keypad. It can
also be dragged on the display with your finger or a mouse. If more than one window
has a Freq Line, the Freq Line of the selected window is controlled.
If the Freq Line is off-screen, it shows as a line at the left or right of the screen. As
with all such lines (Pk Thresh, Trigger Level, etc.) it is drawn on top of all traces.
Unaffected by "Auto Couple" on page 2017.
Remote Command
:DISPlay:WINDow[1]:TRACe:X:FLINe[1]
|2|…|4
<ampl>
:DISPlay:WINDow[1]:TRACe:X:FLINe[1]|2|…|4?
Example Turn Freq Line 1 on:
:DISP:WIND:TRAC:X:FLIN:STAT ON
Set Freq line 3 to 1GHz:
:DISP:WIND:TRAC:X:FLIN3 1 GHz
Dependencies Freq Lines, and this control, only display in Swept Spans
Couplings When a value is set for Freq Line, it is turned ON
When Freq Line goes from OFF to ON, if it is off-screen, it is set to either the left or right of screen,
depending on which direction off-screen it was
The Freq Line's value does not change when it is turned OFF
Preset Freq Line 1 selected, OFF, and set to 1GHz
State Saved Saved in instrument state
Spectrum Analyzer Mode User's &Programmer's Reference 271
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