Operating Manual EMI TEST RECEIVER ESIB7 - Rohde & Schwarz

ESIB
Analyzer - Level Display/RF Input
Level Display and RF Input Configuration – LEVEL Key Group
The REF and RANGE keys are used to set the reference level (= maximum RF input level, = overload
limit), the maximum level (= upper grid level) , and the display range of the active window. The INPUT
key sets the characteristics of the RF input (input impedance, selection of input and input attenuation).
Reference Level – REF key
In addition to the reference level (maximum RF input level), the ESIB provides a function to define a
maximum level (uppermost grid line on the display):
For a spectrum analyzer, the upper boundary of the measurement diagram (maximum level) is also the
limit of its dynamic range (reference level). This means, that a signal which goes beyond the upper grid
line also overdrives the analyzer.
For compensation of frequency or antenna characteristics, transducer factors can be applied to increase
the signal level. In this case, the calculated values can be above the reference level without actually
being physically applied to the instrument. In order to display these signals on the grid, an upper grid
level which is different from the reference level of the analyzer can be entered.
LEVEL REF menu:
LEVEL
REF/
UNIT
RANGE
REF LEVEL
REF LEVEL
REF LEVEL
OFFSET
GRID
ABS / REL
REF LEVEL
MAX LEVEL
AUTO
MAX LEVEL
MANUAL
The REF key opens a menu to set the
reference level and the input attenuation
for the active measurement window .
The REF LEVEL softkey is automatically
active with the menu called up and
opens the entry window for manual input
of the reference level.
UNIT
At the same time various settings
concerning the level and the attenuation
display can be made.
RF ATTEN
MANUAL
ATTEN AUTO
NORMAL
The functions for setting the attenuation
are identical to those under the INPUT
key and are described in Section
"Configuration of the RF Input - INPUT
Key".
ATTEN AUTO
LOW NOISE
ATTEN AUTO
LOW DIST
MIXER
LEVEL
1088.7531.12 4.165 E-15