The Spectrum Application (RF Measurements)
R&S
®
FPL1000
484
User Manual 1178.3370.02 ─ 03
To set a marker in the spectrogram
1. While a spectrogram is displayed, select the MARKER key.
2. Select a "Marker" softkey.
3. Enter the frequency or time (x-value) of the marker or delta marker.
4. Enter the frame number for which the marker is to be set, for example
0
for the cur-
rent frame, or
-2
for the second to last frame. Note that the frame number is always
0 or a negative value!
The marker is only visible in the spectrum diagram if it is defined for the currently
selected frame. In the spectrogram result display all markers are visible that are
positioned on a visible frame.
To configure a spectrogram
1. Configure the spectrogram frames:
a) Select the SWEEP key.
b) Select the "Sweep Config" softkey.
c) In the "Sweep/Average Count" field, define how many sweeps are to be ana-
lyzed to create a single frame.
d) In the "Frame Count" field, define how many frames are to be plotted during a
single sweep measurement.
e) To include frames from previous sweeps in the analysis of the new frame (for
"Max Hold" , "Min Hold" and "Average" trace modes only), select "Continue
Frame" = "On" .
2. Define how many frames are to be stored in total:
a) Select the TRACE key and then the "Spectrogram Config" softkey.
b) Select the "History Depth" softkey.
c) Enter the maximum number of frames to store.
3. Optionally, replace the frame number by a time stamp by toggling the "Time
Stamp" softkey to "On" .
4. If necessary, adapt the color mapping for the spectrogram to a different value
range or color scheme as described in
"How to Configure the Color Mapping"
How to Configure the Color Mapping
The color display is highly configurable to adapt the spectrogram to your needs.
The settings for color mapping are defined in the "Color Mapping" dialog box. To dis-
play this dialog box, do one of the following:
●
Select the color map in the window title bar of the Spectrogram result display.
Trace Configuration
