Ronde & Schwarz 1304.0004.03, User Manual

Page: 354 / 1076

The Spectrum Application (RF Measurements)
R&S
®
FPL1000
354 User Manual 1178.3370.02 ─ 09
Marker Stepsize
Defines the size of the steps that the marker position is moved using the rotary knob.
"Standard" The marker position is moved in steps of (Span/1000), which corre-
sponds approximately to the number of pixels for the default display
of 1001 sweep points. This setting is most suitable to move the
marker over a larger distance.
"Sweep
Points" The marker position is moved from one sweep point to the next. This
setting is required for a very precise positioning if more sweep points
are collected than the number of pixels that can be displayed on the
screen. It is the default mode.
Remote command:
CALCulate<n>:MARKer<m>:X:SSIZe
on page 846
Defining a Fixed Reference
Instead of using a reference marker that may vary its position depending on the mea-
surement results, a fixed reference marker can be defined for trace analysis.
Note that this function may not be available in all result displays.
For "State" = "On", a vertical and a horizontal red display line are displayed, marked as
"FXD". The normal marker 1 is activated and set to the peak value of the trace
assigned to marker 1, and a delta marker to the next peak. The fixed reference marker
is set to the position of marker 1 at the peak value. The delta marker refers to the fixed
reference marker.
The "Level" and "Frequency" or "Time" settings define the position and value of the ref-
erence marker. To move the fixed reference, move the red display lines marked "FXD"
in the diagram, or change the position settings in the "Marker Settings" tab of the
"Marker" dialog box.
Peak Search sets the fixed reference marker to the current maximum value of the
trace assigned to marker 1.
If activated, the fixed reference marker ("FXD") can also be selected as a Reference
Marker instead of another marker.
Remote command:
CALCulate<n>:DELTamarker<m>:FUNCtion:FIXed[:STATe]
on page 869
CALCulate<n>:DELTamarker<m>:FUNCtion:FIXed:RPOint:Y
on page 869
CALCulate<n>:DELTamarker<m>:FUNCtion:FIXed:RPOint:X
on page 868
CALCulate<n>:DELTamarker<m>:FUNCtion:FIXed:RPOint:MAXimum[:PEAK]
on page 868
7.9.3 Marker Search Settings and Positioning Functions
Access : "Overview" > "Analysis" > "Marker" > "Search"
or : [MKR TO]
Several functions are available to set the marker to a specific position very quickly and
easily, or to use the current marker position to define another characteristic value. In
order to determine the required marker position, searches may be performed. The
search results can be influenced by special settings.
Marker Usage