Anritsu MS2024A/MS2026A User Manual page 154

4-25 Limit
desired value. The entire line moves by the amount that is entered. The limit line
can also be moved by using the rotary knob. Turn the rotary knob clockwise to
move the line to higher power levels.
Move Limit, ## Hz
Pressing this soft key allows you to adjust the frequencies of the limit line. All
inflection points are moved by the value entered. The rotary knob can also be
used to make this adjustment. Turn the rotary knob clockwise to move the limit
line to higher frequencies.
Limit Line Type, Absolute/Relative
You can choose to have either limit line be either absolute or relative. The upper
and lower limit lines may be different. This soft key may be used at any time
while working with limit lines. Absolute limit lines set the limit inflection points
based upon the entered frequencies for each point. Relative limit lines set the
limit inflection points relative to the current center frequency. Regardless of how
a limit line is set up, saved, or recalled, it can be changed between absolute and
relative by toggling with this soft key.
Save Limit
Pressing this soft key opens a dialog to save the current upper and lower limit
lines. You can name the saved limit line yourself or accept the name that is
suggested by the instrument (which is based upon a previously saved name). If
you did not intend to save the limit line, then press Esc to stop the dialog and
avoid saving the limit line.
Recall Limit
Pressing this soft key opens a dialog box to recall a saved limit line. The dialog
box presents a list of saved limit lines. Highlight the desired limit line and press
Enter. If you decide not to recall a limit line, then press Esc to stop the dialog.
If the saved limit is a relative limit, then it is recalled centered about the current
center frequency. If the saved limit is an absolute limit, then it is recalled to the
frequency at which it was created.
If you recall an absolute limit, and if it is off screen, then you will see the left or
right limit off-screen indicator on the edge of the screen.
Back
Press this soft key to return to the Limit soft key menu.
Limit Alarm On/Off
Pressing this soft key toggles the alarm function ON and OFF for the currently active
limit line. When ON, an alarm beep will occur when a data point exceeds the limit.
Set Default Limit
Pressing this soft key deletes all limit points for the currently active limit line and sets
the default limit line value, which is a single limit whose position is 1 (one) graticule
line from the top of the screen (for the upper limit line) or 2 graticule lines from the
bottom of the screen (for the lower limit line), depending upon which limit is active. The
inactive limit line is not altered.
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Chapter 4 — Spectrum Analyzer
MS20xxA VNA Master UG 10580-00166 Rev. C