R&S FS300
Spectrum Analyzer
Operating manual, 02/2006
6-89
E-1007.9900.15
6.2.2.2
Entering a Level Offset
Use
If you have connected external attenuators or amplifiers between the DUT
and the RF input, you can enter a level offset to adjust the level display. The
level offset is added to the reference level.
Entering a
level offset
1.
Press the
function key
in the
menu
.
An entry field containing the current setting is displayed. The default set-
ting is 0 dB.
2.
Enter a new value in 0.1 dB steps ( 5-60).
The entry range for the level offset is:
-100 [dB]
≤
Ref Lvl Offset
≤
+50 [dB]
The new setting is saved and displayed in the diagram area. The text
“Offs” is also displayed in the top left of the diagram.
The level offset is always entered in dB no matter what unit is used for
the reference level. If the units mV or mW are used, the offset is auto-
matically converted so that the reference level is displayed correctly:
REF LEVEL
Display
= REF LEVEL + REF LEVEL OFFSET
e.
g.
= -20 dBm
+ 40 dB
= 20 dBm
REF LEVEL + REF LEVEL OFFSET
Summary of Contents for FS300
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