R&S FS300
Spectrum Analyzer
Operating manual, 02/2006
6-125
E-1007.9900.15
6.2.4.3.1 Changing
the
Coupling Ratio RBW/VBW
Use
You can change the automatic coupling between resolution bandwidth (RBW)
and the video bandwidth (VBW) by means of the RBW/VBW MANUAL
function. This makes it possible to increase the display accuracy of the
analyzer in comparison to the default setting (RBW/VBW AUTO).
Setting the
coupling ratio
manually
1.
Press the
function key
in the
submenu
.
An entry field containing the current setting is displayed. The default set-
ting is 1.
2.
Enter a new value ( 5-60).
The entry range for the coupling ratio is:
0.001
≤
RBW/VBW
≤
1000
The new setting is saved and the VBW/RBW coupling ratio is set. If the
resolution bandwidth is changed, the video bandwidth is adjusted auto-
matically.
Activating the
default setting for
the coupling ratio
•
Press the
function key
in the
submenu
.
The R&S FS300‘s video bandwidth is set to three times the resolution
bandwidth.
Summary of Contents for FS300
Page 1: ...2 2006...
Page 16: ......
